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Goodman Heat Pump Manual

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1. 18 60 1 iy ee R N wHiTE Y BROWN BLACK RED THERMOSTAT e 6 OT EHR18 60 2 i Y BLUE i Y wnrre BROWN BLACK RED 5 EMERGENCY THERMOSTAT HEAT RELAY w2 Y 67 e S From Outdoor Unit Typical Wiring Schematics for OT EHR18 60 Outdoor Thermostat amp Emergency Heat Relay This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced Indoor Thermostat 113 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH ui 12 THREE 3 ELEMENT Rows _ FOUR 4 ELEMENT Rows _ Li wou 12 NOTE WHEN INSTALLING HEATER KIT ENSURE SPEED TAP DOES NOT EXCEED MINIMUM BLOWER SPEED MBS SPECIFIED FOR THE AIRHANDLER HEAT ER KIT COMBINATION ON THIS UNIT S S amp R PLATE AFTER INSTALLING OPTIONAL HEAT MARK X IN THE PROVIDED ABOVE MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED NO MARK INDICATES NO HEAT KIT INSTALLED TERMINAL BLOCK SHOWN 12 EQUIPMENT GROUND FOR 502 MODELS ONLY USE COPPER OR ALUMINUM WIRE RD BK RD
2. gt amp i Ed W2 R u BLUE e K WHITE o ES BROWN a BLACK E RED 2 EMERGENCY THERMOSTAT 5 RELAY E amp R 18 60 nmm Y R we Y Xp Zo From Outdoor Unit 15kw and Above Two Stage Electric Heat From Air Handler SEE NOTE A w2 R 12244 BLUE 9 4 WHITE I gt 25 BROWN RED EMERGENCY THERMOSTAT HEAT RELAY R OT EHR18 60 R e 2 Note on When using Thermostat with only one stage for electric heat W2 tie white and From Outdoor Unit brown wires from air handler together Typical Wiring Schematics for OT EHR18 60 Outdoor Thermostat amp Emergency Heat Relay This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced Indoor Thermostat ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH 15kw and Above with Two OT EHR18 60 s Two Stage Electric Heat and Two Stage Thermostat From Air Handler
3. nv X 1 cR U 1 Had satKt X X _ __ pu Hard start Freeze 3 Thermostat 1141643 24V Transforme X x Contains 20 brackets four brackets needed to anchor unit to pad Field installed non bleed expansion valve kit Condensing units and heap pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device Installed on the indoor coil 3 Available in 24V legacy mode only This feature is integrated in the communicating mode Required for heat pump applications where ambient temperature fall below 0 F with 50 or higher relative humidity This component is included in the CTKO1AA communicating thermostat kit 30 ACCESSORIES EXPANSION VALVE KITS For Applications requiring N BULB TO BE LOCATED afield installed access fitting AT 10 OR 2 O CLOCK SUCTION LINE EVAPORATOR COIL SEAL SUPPLIED W KIT SEAL W KIT Em DISTRIBUTOR EXPANSION VALVE REMOVE BEFORE INSTALLING EXPANSION VALVE 7 8 NUT 1 4 FLARE For Applications not requiring afield i
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6. __ muo ee E __ GSX13 Three phase models GSX13 GSX13 GSX13 Description 0363 0483 0484 X X X X X X X E HEN ET ul p ae X Np i 5 5 skora Line Solenoid Kit 1 Contains 20 brackets four brackets needed to anchor unit to pad BETE Ooo i E LS 2 Installed on indoor coil 3 Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coilusing a non bleed thermal expansion valve refrigera 26 ACCESSORIES VSX13 VSX13 VSX13 VSX13 VSX13 VSX13 VSX13 VSX13 uw Tox x Xx 3 I2 caor pocs X X C 222 Lsou X X x x x x_ mme 10 4 O cms ____ x_ Bomae 55214 5214 55714 024 048 nem LX cS Museen x X cn meum EIE cus E X X Ld ee
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8. COIN Po ZR po co A S 5 ca a NI DOP PO POT CO CO GD CO COP 5 2 5 o PO A 5 45 BR OD Co RL SERVICING ELECTRIC HEATER CAPACITY BTUH HTR 3 0 4 7 6 0 7 0 9 5 14 2 19 5 21 0 KW KW KW KW KW KW KW KW KW BTUH 10200 16200 20400 23800 32400 48600 66500 71600 FORMULAS Heating Output KW x 3413 x Corr Factor Actual CFM CFM from table x Corr Factor BTUH KW x 3413 BTUH CFM x 1 08 x Temperature Rise T CFM KW x 3413 1 08x T BTUH CFM x 1 08 S 61A CHECKING HEATER LIMIT CONTROL S Each individual heater element is protected with a limit control device connected in series with each element to prevent overheating of components in case of low airflow This limit control will open its circuit at approximately 150 F AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Remove the wiring from the control terminals 2 Using an ohmmeter test for continuity across the nor mally closed contacts No reading indicates the control is open replace if necessary IF FOUND OPEN
9. __ MM CSR U 3 Fsko1A Freeze Protection Kit OT EHR18 60 Emergency Heat Relay kit TX5N4 TXV Kit CSB 15 Sound Blanket Kit CSB 16 Sound Blanket Kit LAKTO1 Low Ambient Kit 1 Contains 20 brackets four brackets needed to anchor unit to pad 2 Installed on indoor coil 3 Required for heat pump applications w here ambient temperatures fall below 0 F with 50 or higher relative humidity 4 Condensing units and heatp pumps with reciprocating compressors require the use of start assist components w hen used in conjunction with an indoor coil using a non bleed expansion valve refrigerant metering device 5 Field installed non bleed expansion valve kit Condensing units and heat pumps w ith reciprocating compressors require the use of start assist components w hen used in conjunction w ith an indoor coil using a non bleed thermal expansion valve refrigerant metering device 20 ACCESSORIES VSZ13 vszi3 VSZ13 VSZ13 vszi3 Anc x x neca oo En CSRUS 0 SE x Contains 20 brackets four brackets needed to anchor unit to pad OT18 60 9 2 Installed on indoor Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidity gt lt gt lt X gt lt X 5 gt Condensing units and heatp pu
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12. Suo 2 SON Javodumny e ppu se coe dar UNI e popou se DT e popou se popou Joe dar Iwe OAL e geza PALO PAL e iossaxkuoo e JoyoedeountAyney e Doede uniJossarkuoo e 105590100 Ayney e pam pu e uado st SUPUM unLIOSoxluy e SSuIpUM 11225 ey MOT e JALLDJSURIT e 81 YESS Fey APUS SIP oru JOUNI oN e uxo Jopoyigduo e posad Suse 6 TA Pod MOTPA SPY ATI MEPL up pajeopur eq s ATIS pqsouserp pH e 9 059400 pajeopur eq s qa 1 5 pau pB e Aarau Sugd 01 jsp y NH 29 KIT Jeadce dud jeag iaommpuoo 65 SERVICING S 11 CHECKING LOSS OF CHARGE PROTECTOR Heat Pump Models The loss of charge protector senses the pressure in the liquid line and will open its contacts on a drop in pressure The low pressure control will automatically reset itself with a rise in pressure The low pressure control is designed to cut out open at approximately 21 PSIG It will automatica
13. Bypass Ports Closed 100 67 Capacity Bypass Ports Open A scroll is an involute spiral which when matched with a mating scroll form as shown generates series of crescent shaped gas pockets between the two members During compression one scroll remains stationary fixed scroll while the other form orbiting scroll is allowed to orbit but not rotate around the first form 38 Wann As this motion occurs the pockets between the two forms are slowly pushed to the center of the two scrolls while simultaneously being reduced in volume When the pocket reaches the center of the scroll form the gas which is now at a high pressure is discharged out of a port located at the center During compression several pockets are being compressed simultaneously resulting in a very smooth process Both suction process outer portion ofthe scroll members and the discharge process inner portion are continuous Some design characteristics of the Compliant Scroll com pressor are CompliantScroll compressors are moretolerant of liquid refrigerant NOTE Even though the compressor section of a Scroll compressor is more tolerant of liquid refrigerant contin ued floodback or flooded start conditions may wash oil from the bearing surfaces causing premature bearing failure Ultratech Series scroll compressors use POE or polyolester oil which is NOT compatible with mineral oil based lu
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15. Disconnect ALL power before servicing 1 Tag and disconnect all wires from male spade connec tions of relay 2 Using an ohmmeter measure the resistance across terminals H1 and H2 Should read approximately 150 ohms 3 Using an ohmmeter check for continuity across termi nals 3 and 1 and 4 and 5 4 Apply 24 volts to terminals H1 and H2 Check for continuity across other terminals should test continu ous If not as above replace NOTE The time delay for the contacts to make will be approximately 20 to 50 seconds and to open after the coil is de energized is approximately 40 to 90 seconds OHMMETER TESTING COIL CIRCUIT SERVICING S 7 CHECKING CONTACTOR AND OR RELAYS AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death The compressor contactor and other relay holding coils are wired into the low or line voltage circuits When the control circuit is energized the coil pulls in the normally open contacts or opens the normally closed contacts When the coil is de energized springs return the contacts to their normal position NOTE Most single phase contactors break only one side of the line L1 leaving 115 volts to ground present at most internal components NOTE The compressor contactor relay in ComfortNet ready equipment is fully integrated into t
16. aan ose ose 05719571 42000 778 _ 100 7 00 0 99 0 99 0 99 0 55 3 78 1 09 1 00 1 00 1 00 1 00 1 00 055 6 55 538 0 37 0 96 0 56 48000 778 1 00 0 99 0 99 0 99 0 98 0 98 1 78 1200 1 00 1 00 1 00 1 00 7 00 3 4 0 99 0 98 0 97 0 96 0 94 0 93 60000 7 8 1 00 0 99 0 98 0 98 0 97 0 97 1 18 1 00 1 00 1 00 0 99 0 99 0 99 107 SERVICING NOTE For a condenser with a liquid valve tube connection less than 3 8 diameter use 3 8 liquid line tubing for a line set greater than 25 feet Liquid Line Suction Line TABLE 5 LOSSES FROM SUCTION LINE ELBOWS Mounting the condensing unit above the EQUIVALENT LENGTH FT evaporator will require an oil trap eae the suction line Install one oil trap at the LD evaporator for a height difference of more than Type of elbow fitting Ha E 15 feet between indoor and outdoor units 902 short radius 17 2 gt amnu 1 90 longradus 15 17 16 Os 1588 Installation Requirements oj 1 Inacompletely horizontal installation with along line set where the evaporator is at the same altitude as or m slightly below the condenser the line set should be sloped towards the evaporator This helps redu
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19. Run 2 s 7 ey 1 XL Line SS Ra R Internal Unioader Coll 24 Vac FIGUREB 1 Itis expected that the majority of run hours will be in the low capacity unloaded mode 2 Itallows a simple two stage thermostat to control capac ity through the second stage in both cooling and possibly heating if desired UNLOADER SOLENOID A nominal 24 volt direct current coil activates the internal unloader solenoid The input control circuit voltage must be 18 to 28 volt ac The coil power requirement is 20 VA The external electrical connection is made with a molded plug assembly This plug is connected to the Comfort Alert Module which contains a full wave rectifier to supply direct current to the unloader coil CAPACITY CONTROL COMFORTNET MODELS During the compression process there are several pockets within the scroll that are compressing gas Modulation is achieved by venting a portion of the gas in the first suction pocket back to the low side of the compressor thereby reducingthe effective displacement of the compressor See Figure A Full capacity is achieved by blocking these vents increasing the displacement to 10096 A solenoid in the compressor controlled by an external 24 volt ac signal moves the slider ring that covers and uncovers these vents The vent covers are arranged in such a manner that the compressor operates somewhere around 6796 capacity when the sole
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21. 158 BK BL Y BK PU v LUA ax ie rot 5 bie T 7 1 EE C o HO IHO Hal R1 R O R Ne oW F o w M20 O a R1 R2 en gt BK w n BK BK w 5 H K O 4 5 R S Y ai BK 2 sc Li 12 ONE 1 ELEMENT ROWS iis TWO 2 ELEMENT ROWS 12 11 12 THREE 3 ELEMENT ROWS b 11 FOUR 4 ELEMENT ROWS AFTER INSTALLING OPTIONAL HEAT KIT MARK AN X IN THE PROVIDED ABOVE MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED NO MARK INDICATES NO HEAT KIT INSTALLED SEENOTE 7 Wi Yi 208 240 volts FIELD CONNECTION Ric wal wel rial BOX PLI PLI H R PL2 PL2 SEE NOTE 8 TO LOW VOLTAGE TERMINAL BOARD Y o BL PU Y e et Jen anf 5 4 o 0100000000 TR BL Bk IR 4 24VOLT 5 zm PL2 ty aL 6 PL2 FREE a 20 ay R SEENOTE 5 NOTE YCON 5 PJS DIODE No TE DIODE 9 CIO G 3 2A G BL BR SEE NOTE 7 gk SEE NOTE 3 SEENOTE 2 SEENOTE 1 COLOR CODE WIRING CODE 2 W__WHITE 6 GREEN BK _ BLACK PU_ PURPLE FAO TORY WIRING RED BR BROWN ION YELLOW 0___ ORANGE FIELD WIRING BL BLUE _ HIGH VOLTAGE LOW VOLTAGE COMPONENT CODE f EM
22. ARUF364216AC Single Piece Multi Position PSC Motor Unpainted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line A Single Piece Multi Position PSC Motor Unpainted Flowrater Revision replaces all ARUFcoils ARUF 16BA E Moe using wavy with louver enhanced fin aad A Single Piece Multi Position PSC Motor Unpainted Flowrater Introducation of R 22 Only Air ARUF 1BA Handlers ARUF 16CA A Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision replaces existing air handler copper coils and other associated parts with aluminum components ARPF 16AA A Single Piece R Multi Position PSC Motor Painted Flowrater Introducation of new 13 SEER Air Handler Models Models will be suitable for use with R 22 and R 410A ARPF364216AB A Single Piece R Multi Position PSC Motor Painted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line ARPF486016AB Single Piece R Multi Position PSC Motor Painted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line T A Single Piece R Multi Position PSC Motor Painted Flowrater Revision replaces all ARPFcoils ARPF 16BA i Mem using wavy fin with louver enhanced fin ARPF 1BA Multi Position PSC Motor Painted Flowrater
23. MOTOR TL THERMAL LIMIT PL PLUG HTR HEAT ELEMENT PJ2 PJ4 PJ6 ____ JUMPER RELAY VSTB_ VARIABLE SPEED TR TRANSFORMER TERMINAL BOARD FL FUSE LINK COPPER EQUIPMENT GROUND NOTES POW ER SUPPLY USE COPPER WIRE SEE RATING PLATE 1 FOR HEAT PUMP APPLICATIONS REMOVE ORANGE JUMPER WIRE BETWEEN O amp Y1 2 FOR TWO STAGE ELECTRIC HEAT APPLICATIONS CUT PJ4 USE ONLY ON 15 amp 20 KW MODELS 3 FOR OUTDOOR THERMOSTAT OPERATION OF SECOND STAGE HEAT CUT PJ2 amp ADD OT18 60 TO OTC amp OT2 4 FOR SINGLE STAGE COOLING APPLICATIONS CONNECT THERMOSTAT TO Y Y2 ONLY OR REMOVE Y1 CONNECTION CONNECT CONDENSING UNIT TO YCON amp C 5 WHEN HUMIDSTAT IS PROVIDED CUT PJ6 THERMOSTAT OPENS ON HUMIDITY RISE 6 RED WIRES TO BE ON TRANSFORMER TERMINAL 3 FOR 240 VOLTS AND ON TERMINAL 2 FOR 208 VOLTS 7 SEE COMPOSITE WIRING DIAGRANS IN INSTALLATION INSTRUCTIONS FOR PROPER LOW VOLTAGE CONNECTIONS AND DETAILS ON COMPATIBLE THERMOSTATS AND THEIR CONNECTIONS 8 DISCARD ORIGINAL PL1 PLUG CONNECTOR WHEN INSTALLING OPTIONALHEAT KIT CONTROLS SHOWN WITH UTILITIES IN POSITION AND THERMOSTAT IN OFF POSITION IF REPLACEMENT OF THE ORIGINAL W IRES SUPPLIED WITH THIS ASSEMBLY IS NECESSARY USE 105 C WIRE SIZE TO CONFORM TO THE NATIONA L ELECTRIC CODE 0140A00000P ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FA
24. SOCIO TRA release of Goodman 14 SEER Heat Pump R410A Special High Feature Split 2 410 heat pump 14 Seer heat pump units 552140 1 Introduces new revisions have screw locations moved in the top panel base pans louvers and control box covers SS7140 1AC Special High Feature Split 2 R410A heat pump 14 Seer heat pump units Models contain Broad Ocean motors 552140181 554 140241 552140301 Special High Feature Split Z R410A heat pump 14 Seer heat pump units Introduces new revisions adding mufflers to the discharge line SSZ140361AF Special High Feature Split Z R410A heat pump 14 Seer heat pump units New SSZ140421AD revisions replace TXV amp compensator with flowrator amp accumulator adds mufflers SSZ140 48 60 1AD on SSZ14036 421 481 601 SSZ160 1AA Special High Feature Split Z R410A heat pump 16 Seer heat pump units Initial release of Goodman 16 SEER Heat Pump R410A Special High Feature Split Z R410A heat pump 16 Seer heat pump units 557160 1 Introduces new revisions have screw locations moved the top panel base pans louvers and control box covers SZ160 24 48 1AC Special High Feature Split Z R410A heat pump 16 Seer heat pump units SSZ7160601AD Introduces new revisions adding mufflers to the discharge line Special High Feature Split Z R410A heat pump 16 Seer heat pump SSZ160 1 AC units Introduces models containing the Broad Ocean motor and added Muffler standardized TXV
25. and 4 to the appropriate ON OFF positions MBVC16000 2000 800 800 800 800 Low Stage High Stage Cool Cool 400 540 670 800 D A B D A B D 17 SERVICING S 17 CHECKING COMPRESSOR WARNING Hermetic compressor electrical terminal venting can be dangerous When insulating material which supports a hermetic compressor or electrical terminal suddenly disintegrates due to physical abuse or as a result of an electrical short between the terminal and the compressor housing the terminal may be expelled venting the vapor and liquid contents of the compressor housing and system Ifthe compressor terminal PROTECTIVE COVER andgas ket if required are not properly in place and secured there is a remote possibility if a terminal vents that the vaporous and liquid discharge can be ignited spouting flames several feet causing potentially severe or fatal injury to anyone in its path This discharge can be ignited external to the compressor if the terminal cover is not properly in place and ifthe discharge impinges on a sufficient heat source Ignition of the discharge can also occur at the venting terminal or inside the compressor if there is sufficient contaminant air present in the system and an electrical arc occurs as the terminal vents Ignition cannot occur at the venting terminal without the presence of contaminant air and cannot occur externally fromthe venti
26. 10kW Electric Heat 3 Tons Cooling 5 kW Electric Heat 3 Tons Cooling 8 kW Electric Heat 3 Tons Cooling 10 kW Electric Heat All Airhandlers use DIRECT DRIVE MOTORS Power supply is AC 208 230v 60 hz 1 phase 18 PRODUCT IDENTIFICATION ComfortNet Lr Ce eso 4 6 EXPANSION PRODUCT DEVICE revision TYPE F Flowrater A Air Handler T TXV Expansion Device REVISION CABINET FINISH U Unpainted P Painted REFRIGERANT CHARGE N Uncased No Digit R 22 Only 6 R 410A or R 22 COMMUNICATION MOTOR SPEED FEATURE V Variable Speed C 4 wire ELECTRICAL Communication 1 208 230V 1ph 60Hz Ready NOMINAL CAPACITY RANGE Multi Position amp Downflow Applications 3137 3 Tons 1830 1 1 2 2 1 2 Tons Ceiling Mount amp Wall Mount Applications Nominal Cooling Capacity Electric Heat kW 4260 3 1 2 Tons 5 Tons All Airhandlers use DIRECT DRIVE MOTORS Power supply is AC 208 230v 60 hz 1 phase ACCESSORIES ASZ13 5713 5713 5713 5713 Description 018 CSR U 2 Hard start Kit CSR U 3 Hard start Kit FSKO1A Freeze Protection Kit Freeze Protection KR GSZ13 Description TX5N4 TXV Kit en sun seen 11 1 1 1 3 GSZ13 Three phase models P GSZ13 GSZ13 65213 Description EM AFE18 60A All Fuel Kit fait L3 3
27. 24Vac from the coil of HR1 The contacts on HR1 will open between 30 to 70 seconds and turn off both heater element s The heat pump remains on along with the blower motor because the Y demandfor first stage heat will still be present 4 5 When the first stage heat demand Y is satisfied the room thermostat will remove the 24Vac from and Y The heat pumpis turned off and the blower motor turns off after a 65 second off delay 5 0 Defrost Operation On heat pump units when the room thermostat is set to the heating mode the reversing valve is not energized As long as the thermostatis set for heating the reversing valve willbe in the de energized position for heating except during a defrost cycle 5 1 The heat pump will be on and operating in the heating mode as described the Heating Operation in section 4 5 2 The defrost control in the heat pump unit checks to seeif a defrost is needed every 30 60 or 90 minutes of heat pump operation depending on the selectable setting by monitoring the state of the defrost thermostat attached to the outdoor coil 5 3 If the temperature of the outdoor coil is low enough to cause the defrost thermostat to be closed when the defrost board checks it the board will initiate a defrost cycle 5 4 When a defrost cycle is initiated the contacts of the HVDR relay on the defrost board open and turns off the outdoor fan The contacts of the LVDR relay on the defrost board closes
28. DIPSWITCH FUNCTIONS Dipswitch 1 2 amp 7 8 AEPF 1830 Heating Element UP TO 10 AEPF3036 3137 4260 Heating Switch Switch Position Position Emergency Heat Pump Backup Switch Position Switch Position Emergency Heat Pump Element __ 2 Dipswitch 5 6 amp 7 8 AEPF 1830 Switch Position 9 al OFF FF Indoor Airflow 8 Cooling Heat Pump Sr orr orr 600 600 AEPF3036 3137 4260 Swi Switch Posit Position Indoor Airflow itch ion 6 7 8 Cooling Heat Pump OFF or or or 1580 19e Lor ow or __ ov ov or om 1200 1x T ov 1020 1000 SERVICING S 16E BLOWER PERFORMANCE DATA MBR800 MBR1200 MBR1600 MBR2000 no o 15 99 3179 605 132 4 1 os so 9 10 NOTE External static is for blower 230 Volts It does not include Coil Air Filter or Electric Heaters S 16F CHECKING GE X13 MOTORS X13 Motor is a one piece fully encapsulated 3 High Voltage phase brushless DC single phase AC input motor with ball Connections bearing construction Unlike the ECM 2 3 2 5 motors the GE 3 16 X13 features an integral control module Note The GE TECMate will not currently operate the GE X13 motor 1 Using
29. Insulate the liquid line if it passes through an area of 120 F or greater Do not attach the liquid line to any non insulated portion of the suction line 6 Vibration and Noise In long line applications refriger anttubing is highly prone to transmit noise and vibration to the structure it is fastened to Use adequate vibration isolating hardware when mounting line set to adjacent structure Table 4 lists multiplier values to recalculate system cooling capacity as a function of a system s equivalent length as calculated from the suction line and the selected suction tube size Table 5 lists the equivalent length gained from adding bends to the suction line Properly size the suction line to minimize capacity loss TABLE 4 CAPACITY MULTIPLIERS AS A FUNCTION OF SUCTION LINE SIZE amp EQUIVALENT LENGTH Capacity Length ft 1 2 25 59 zs 100 125 150 12 0 99 0 97 0 96 0 94 0 94 0 93 18000 5 8 1 00 0 55 0 99 0 99 0 98 0 98 5 4 1 00 1 00 1 00 1 00 0 99 0 99 se 0 99 0 99 0 98 0 58 0 97 0 37 24000 3 4 1 00 1 00 0 99 0 99 0 99 0 99 78 1 00 1 00 1 00 1 00 0 99 0 99 578 0 99 0 99 0 98 0 97 0 96 0 96 30000 3 4 1 00 1 00 0 99 0 99 0 99 0 98 78 1 00 1 00 1 00 1 00 1 00 0 99 5 8 0 39 0 96 0 96 0 95 0 94 0 93 36000 3 4 1 00 1 00 0 99 0 99 0 98 0 98 7s pues roo 1 00 160 059 0 99
30. Introducation of R 22 Only Air ARPF 46CA Single Piece Multi Position PSC Motor Painted Flowrater Revision replaces existing air handler copper coils and other associated parts with aluminum components ADPF 16AA Single Piece Downflow PSC Motor Unpainted Flowrater Introduction of new 13 SEER Air Handler Models All Models will be suitable for use with R 22 and R 410A ADPF364216AB A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line ADPF486016AB A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line ADPF304216AC A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line ADPF 1BA A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces all ARPFcoils using wavy fin with louver enhanced fin ADPF182416CA A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces existing air handler ADPF486016CA copper coils and other associated parts with aluminum components PRODUCT IDENTIFICATION Single Piece Air Handlers AEPF 16AA A Single Piece E Multi Position Variable Speed Painted Flowrator Introducation of new 13 SE
31. LIIONENE GMOGMGIESMEZETSETEERGEREE NE BLOWER x x XxX Xx x XxX x gt lt owes eem ARSE ES ae ee ie m eS X Allowable combinations Circuit 1 Single Phase for Handler Motor Revision level that my or may not be designated Restricted combinations Circuit 2 3 Phase for HKR3 Heater Kits Circuit Breaker option 33 ACCESSORIES ELECTRIC HEAT KIT APPLICATIONS ARPF __ 1 16 1 16 1 16 1 16 1 16 1 16 Wee X X E X X X LX Bee 1 X X LX Lx Wee wea x X X _ gt lt gt lt Xx mraos Rao x x Hec x x x exc x pos p _ Hee __ _ x ree 112 x amp amp gt amp lt gt gt Revision level that may may not be designated C Circuit breaker option Heat kit required three phase power supply Air handler must either be on medium or high speed Air handler must be on high speed 3 For static pressure of 0 6 or h
32. REPLACE DO NOT WIRE AROUND S 61B CHECKING HEATER FUSE LINK OPTIONAL ELECTRIC HEATERS Each individual heater element is protected with a one time fuse link which is connected in series with the element The fuse link will open at approximately 333 WARNING ___ Disconnect ALL power before servicing 1 Remove heater element assembly so as to expose fuse link 2 Using an ohmmeter test across the fuse link for continu ity no reading indicates the link is open Replace as necessary NOTE The link is designed to open at approximately 333 F DO NOT WIRE AROUND determine reason for failure S 62 CHECKING HEATER ELEMENTS WARNING Disconnect ALL power before servicing 1 Disassemble and remove the heating element 2 Visually inspect the heater assembly for any breaks in the wire or broken insulators 3 Using an ohmmeter test the element for continuity no reading indicates the element is open Replace as necessary S 100 REFRIGERATION REPAIR PRACTICE DANGER Always remove the refrigerant charge in a proper manner before applying heat to the system When repairing the refrigeration system AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Never open a system that is under vacuum Air and moisture will
33. REVERSING VALVE CALL FOR COMPRESSOR CALL FOR EMERGENCY HEAT CALL FOR BLOWER FAN CALL FOR FURNACE HEAT POWER SUPPLY COMMON OUT TO THERMOSTAT CALL FOR 2ND STAGE gt FURNACE HEAT Y Y o O m lt A 2 52 2 2 CALL FOR 2ND STAGE gt COMPRESSOR N POWER SUPPLY OUT TO HP CONTROL HP CALL FOR FURNACE DURING DEFROST REVERSING VALVE OUTPUT COMPRESSOR lt CONTACTOR OUTPUT POWER SUPPLY COMMON OUT TO HP CONTROL ODT OUTDOOR THERMOSTAT 2ND STAGE COMPRESSOR DEMAND OUTPUT lt ALL FUEL CONTROL BOARD AFE18 60A This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced For use with Heat Pumps in conjunction with 80 or 90 Single Stage or Two Stage Furnaces 111 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH 10kw and Below One Stage Electric Heat From Air Handler 112
34. The AFE1 8 controlis designed for use in heat pump applica tions where the indoor coilis located above downstream ofa gas or fossil fuel furnace It will operate with single and two stage heat pumps and single and two stage furnaces The AFE18 control will turn the heat pump unit off when the furnace is turned on An anti short cycle feature is also incorporated which initiates a 3 minute timed off delay when the compressor goes off On initial power up or loss and restoration of power this 3 minute timed off delay will be initiated The compressor won tbe allowed to restart until the 3 minute off delay has expired Also included is a 5 second de bounce feature on the Y E W1 and O thermostat inputs These thermostat inputs must be present for 5 seconds before the AFE18 control will respond to it An optional outdoor thermostat OT18 60A can be used with the AFE18 to switch from heat pump operation to furnace operation below a specific ambient temperature setting i e break even temperature during heating When used in this manner the Y heat demand is switched to the W1 input to the furnace by the outdoor thermostat and the furnace is used to satisfy the first stage Y heat demand On some controls outdoorthermostatfails closed in this position during the heating season it will turn on the furnace during the cooling season on a Y cooling demand n this situation the furnace produces heat and increases the indoor t
35. provid ing 24VAC to the Y2 terminal at the AH control The integrated AH control operates the ECM blower motor at the high stage cooling airflow demand Thermostat G and Y1 contacts remain closed 1 5 The compressor and condensor fan motor high stage speeds are energized by the closing of the thermostat Y2 contacts 91 SERVICING 1 6 The system operates at high stage cooling 1 7 Upon satisfying the thermostat the Y1 and Y2 thermostat contacts open removing 24VAC from the both the outdoor condensor and integrated air handler control The compressor and condensor fan motor are both de energized immediately The integrated AH control continues to operate the ECM blower motor for an OFF delay period then applies the off portion of the selected ramping profile The ECM blower motor is then de energized 2 0 Heating Operation 2 1 Onademand for auxiliary heat operation the thermostat closes the W1 contacts providing 24VAC to the W1 terminal at the integrated air handler control The integrated AH control initiates the heating ramping profile after any blower ON delays have expired After complet ing any blower ON delays and ramping profile the control operates the variavble speed ECM motor at the de mandedairflow 2 2 The system operates at low stage auxiliary heat 2 3 If the thermostat demand cannot be met on low stage auxiliary heat the thermostat will close the W2 con tacts providing 24VAC to th
36. supplied to and Ylo Y1 of the MBE AEPF The VSTB will turn on the blower motor and the motor will ramp up to 6096 of the speed programmed in the motor based on the settings of dip switch 1 and 2 The VSTB will supply 24Vac to Y at the heat pump The com pressor will start on low stage and outdoor fan will start on low speed on a Y1 heating demand but the blower motor will deliver only 60 of the pro grammed cfm for high speed heating operation 4 2 If athermostatthat provides a Y2 demandin heating is used and first stage heating cannot satisfy the demand the roomthermostat will energize Y2 and supply 24Vac to Y Y2 of the MBE unit The blower motor will change tothe cfm for high speed heating operation andthe VSTB will supply 24Vac to Y Y2 at the heat pump The outdoor fan will change to high speed operation and compressor will shift to high stage If the 2 demand is present and becomes satisfied the thermostat will remove the 2 demand and the VSTB will remove the 24Vac from 2 atthe heat pump The blower will drop to 6096 of the programmed cfm and the outdoor fan will change to low speed On most digital electronic thermo stats Y2 will remain energized until the first stage heating demand Y1 is satisfied and then the G Y 1 and Y2 demands will be removed 4 3 If the heat pump operation cannot satisfy the demand the room thermostat energizes W2 W3 and 24Vac
37. temperature to be displayed on the thermostat when used with the ASXC and DSXC models The ASZC and DSZC ComfortNet ready heat pump models are equipped with both an outdoor air temperature OAT sensor and an outdoor coil temperature OCT sen sor The OAT provides the balance point temperature in heat pump systems air handler w electric heat heat pump and dual fuel systems The OCT sensor is provides the outdoor coil temperature and is used in determining defrost cycles To check either the outdoor air or outdoor coil temperature sensors d WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect power to the air conditioner or heat pump 2 Disconnect the sensor from the unitary UC control 3 Connect an ohmmeter across the sensorterminals The ohmmeter should read be 10kQ 10 at 75 F Re place the sensor if the sensoris open shorted or outside the valid resistance range 5 40 MBR AR F ELECTRONIC BLOWER TIME DELAY RELAY The MBR AR F contains an Electronic Blower Time Delay Relay board B1370735 This board provides on off time delays for the blower motor in cooling and heat pump heating demands when G is energized During a cooling or heat pump heating demand 24Vac is supplied to terminal of the EBTDR to turn on the blower
38. the W1 terminal atthe integrated air handler control The integrated AH control initiates the heating ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control operates the variavble speed ECM motor at the demanded airflow 5 2 The system operates at emergency heat 5 3 Upon satisfying the thermostat emergnecy heat de mand the W1 thermostat contacts open removing 24VAC from the integrated air handler control The integrated AH control continues to operate the ECM blower motorfor an OFF delay period then applies the off portion of the heating ramping profile The ECM blower motor is then de energized AVPTC MBVC with 2 Stage Condensers 24VAC Legacy Wired Systems 1 0 Cooling Operation 1 1 On a demand for low stage cooling operation the thermostat closes the G and Y1 contacts providing 24VACtothe G and Y1 terminals atthe integrated air handler control The integrated AH control initiates the selected cooling ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control operates the variavble speed ECM motor atthe demanded airflow 1 2 The compressor and condensorfan motor are energized by the closing of the thermostat Y 1 contacts 1 3 The system operates at low stage cooling 1 4 If the thermostat demand cannot be met with low stage cooling the thermostat closes the Y2 contacts
39. where applicable 1824 6 CHPF2430B6CA CHPF3636B6CA CHPF3642C6CA Indoor Coil Horizontal A Coil Painted Flowrator 13 SEER CHPF horizontal A coil revision CHPF3642D6CA has louver fins amp replaces copper tube hairpins with aluminum hairpins CHPF3743C6BA CHPF3743D6BA CHPF4860D6DA Indoor Coil S Horizontal Slab Coil Upainted Flowrator Release 13 SEER CSCF slab CSCF 6AA horizontal coil C Indoor Coil S Horizontal Slab Coil C Upainted Flowrator Revision releases Burr Oak CSCF 6BA Louvered Fin in place of the Wavy Fin currently in production The rows change by one i e 4 row to 3 row 3 row to 2 row where applicable PRODUCT IDENTIFICATION G Goodman Standard REVISION Feature Set SEER A Initial Release Goodman SEER Rating High Feature Set Amana MAJOR Brand NOMINAL REVISION Deluxe CAPACITY A Initial Release Deluxe 018 1 5 Tons Goodman 024 2 Tons Value Line 030 2 5 Tons 036 3 Tons PRODUCT 042 3 5 Tons FAMILY 048 4 Tons S Split System 059 5 Tons 060 5 Tons PRODUCT TYPE Condenser 410 2 Heat Pump R 410A ELECTRICAL 1 208 230V 1ph 60Hz 3 208 230v 3ph 60Hz 4 460v 3ph 60Hz 14 PRODUCT IDENTIFICATION A Amana ComfortNet REVISION Brand SEER A Initial Release Deluxe SEER Rating D Deluxe Goodman PRODUCT FAMILY S Split System COMMUNICATION FEATURE C 4 wire Communicatio
40. 0 055 0 065 0 068 0 070 Rem ote Heat Pump A GSZ130181 A GSZ130241 A GSZ130301 A GSZ130361 GSZ130363A A GSZ130421 A GSZ130481 GSZ130483A GSZ130484A A GSZ130601 GSZ130603A GSZ130604A SZ140361A SZ140421A 552140481 552140601 VSZ130181A VSZ130241A VSZ130301A Orifice Size 0 049 0 057 0 063 0 068 0 074 0 078 0 070 0 076 0 080 0 088 0 049 0 057 0 063 0 068 0 074 0 078 0 088 SERVICING S 105B THERMOSTATIC EXPANSION VALVE The expansion valve is designed to control the rate of liquid refrigerant flow into an evaporator coil in exact proportion to the rate of evaporation of the refrigerant in the coil The amount of refrigerant entering the coil is regulated since the valve responds to temperature of the refrigerant gas leaving the coil feeler bulb contact and the pressure of the refrigerant in the coil This regulation of the flow prevents the return of liquid refrigerant to the compressor The illustration below shows typical heatpump TXV check valve operation in the heating and cooling modes CO TUI COOLING TXV VALVES Some TXV valves contain an internal check valve thus eliminating the need for an external check valve and bypass loop The three forces which govern the operation ofthe valve are 1 the pressure created in the power assembly by the feeler bulb 2 evaporator pressure and 3 the equivale
41. 24Vac will be supplied to heat sequencer HH1 on the heater assembly 4 3 HR1 contacts M1 and M2 will close will close within 10 to 20 seconds and turn on heater element 1 At the same time if the heater assembly contains a second heater element HR1 will contain a second set of con tacts M3 and M4 which will close and turn on heater element 22 The blower motor is already on as a result of terminal G onthe EBTDR board being energized for the first stage heat demand Noie If more than two heater elements are on the heater assembly it will contain a second heat sequencer HR2 which will control the and 4 heater elements if available Ifthe second stage heat demand W2 cannot be satisfied by the heat pump the temperature indoors will continue to drop The room thermostat will then energize W3 and 24Vac will be supplied to HR2 on the heater assembly When the W3 demand is satisfied the room thermostat will remove the 24Vacfrom HR2 Thecontacts on HR2 will open between 30 to 70 seconds and heater elements 3 and 4 will be turned off On most digital electronic thermostats W3 will remain energized until the first stage heat demand Y is satisfied and then the Y W2 and W3 demands will be removed 4 4 As the temperature indoors increase it will reach a point where the second stage heat demand W2 is satisfied When this happens the room thermostat will remove the
42. 5 52 CHECKING HEATER ELEMENTS Optional electric heaters may be added in the quantities shown in the spec sheet for each model unit to provide electric resistance heating Under no condition shall moreheaters than the quantity shown be installed AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disassemble and remove the heating element s 2 Visually inspect the heater assembly for any breaks in the wire or broken insulators 3 Using an ohmmeter test the element for continuity no reading indicates the element is open Replace as necessary S 60 ELECTRIC HEATER OPTIONAL ITEM Optional electric heaters may be added in the quantities shown in the specifications section to provide electric resistance heating Under no condition shall more heaters than the quantity shown be installed The low voltage circuit in the air handler is factory wired and terminates atthe location provided for the electric heater s A minimum of field wiring is required to complete the installation Other components such as a Heating Cooling Thermostat and Outdoor Thermostats are available to complete the installation The system CFM can be determined by measuring the 96 static pressure external to the unit The installation manual supplied with the blower coil or the blower perfo
43. AA WARNING To avoid the risk of fire or explosion never use oxygen high pressure air or flammable gases for leak testing of a refrigeration system AX WARNING To avoid possible explosion the line from the nitrogen cylinder must include a pressure regulator and a pressure relief valve The pressure relief valve must be set to open at no more than 150 psig Pressure test the system using dry nitrogen and soapy water to locate leaks If you wish to use a leak detector charge the system to 10 psi using the appropriate refrigerant then use nitrogen to finish charging the system to working pressure then apply the detector to suspect areas If leaks are found repair them After repair repeat the pressure test If no leaks exist proceed to system evacuation S 102 EVACUATION AX WARNING REFRIGERANT UNDER PRESSURE Failure to follow proper procedures may cause property damage personal injury or death IMPORTANT NOTE Because of the potential damage to compressors do not allow suction pressure at service valve to drop below 20 PSIG when pumping unit system down for 98 repair Outdoor section depending on line set length and amount of charge in system may not be able to hold the entire system charge This is the mostimportant part of the entire service procedure The life and efficiency of the equipmentis dependentuponthe thoroughness exercised by the serviceman when evacuating air non condensab
44. Amana brand Split X Communicating condensing units 16 Seer R410A Introduces Amana brand 2 stage 16 SEER condensing units with R 410A communicating models ASX140 1AA ASX180 1AB ASXC16 1AA Amana brand Split X Communicating condensing units 16 Seer R410A heat pump units ASXC160601BA Introduces Amana brand 2 stage 16 SEER condensing units with R 410A communicating models New BA revisions use ZPS49 compressor Amana brand Split X Communicating condensing units 16 Seer R410A condensing ASXC160481BA units Introduction of Amana brand 16 SEER condensing units with R 410A New revisions have SmartCoil coils Amana brand Split X Communicating condensing units 18 Seer R410A condensing ASXC18 1AA units Introduces Amana brand 2 stage 16 SEER condensing units with R 410A communicating models PRODUCT IDENTIFICATION Single Piece Air Handlers ARUF 6AA A Single Piece R Multi Position PSC Motor Unpainted Flowrater Introducation of new 13 SEER Air Handler Models Models will be suitable for use with R 22 and R 410A ARUF364216AB A Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line ARUF486016AB Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line
45. BLINDNESS AVOID CONTACT WITH REFRIGERANT AND WEAR GLOVES AND GOGGLES IF LIQUID REFRIGERANT DOES CONTACT YOUR SKIN OR EYES SEEK MEDICAL HELP IMMEDIATELY ALwavs FOLLOW EPA REGULATIONS NEVER BURN REFRIGERANT AS POISONOUS GAS WILL BE PRODUCED THE UNITED STATES ENVIRONMENTAL PROTECTION AGENCY EPA HAS ISSUED VARIOUS REGULATIONS REGARDING THE INTRODUCTION AND DISPOSAL OF REFRIGERANTS INTRODUCED INTO THIS UNIT FAILURE TO FOLLOW THESE REGULATIONS MAY HARM THE ENVIRONMENT AND CAN LEAD TO THEH IMPOSITION OF SUBSTANTIAL FINES THESE REGULATIONS MAY VARY BY JURISDICTION SHOULD QUESTIONS ARISE CONTACT YOUR LOCAL EPA SYSTEM CONTAMINANTS IMPROPER SERVICE PROCEDURE AND OR PHYSICAL ABUSE AFFECTING HERMETIC COMPRESSOR ELECTRICAL TERMINALS MAY CAUSE DANGEROUS SYSTEM VENTING Thesuccessful developmentof hermetically sealed refrigera tion compressors has completely sealed the compressor s moving parts and electric motor inside a common housing minimizing refrigerant leaks and the hazards sometimes associated with moving belts pulleys or couplings Fundamental to the design of hermetic compressors is a method whereby electrical current is transmitted to the compressor motor through terminal conductors which pass through the compressor housing wall These terminals are sealedinadielectric material which insulates them from the housing and maintains the pressure tight integrity of the hermetic compressor The terminals and their di
46. Compensator using the ASZ18 Seer weldment to the SSZ160601AC Deluxe Split Z Heat Pump 16 Seer heat pump units Introduces Goodman 2 stage 16 SEER heat pumps with R 410A Deluxe Split Z Heat Pump 18 Seer heat pump units Introduces Goodman 2 stage 18 SEER heat pumps with R 410A Deluxe Split Z Communicating heat pump 16 Seer R410A heat pump units DSZC16 1AA Introduces Goodman 2 stage 16 SEER heat pumps with R 410A communicating models Deluxe Split Z Communicating heat pump 18 Seer R410A heat pump units DSZC18 1AA Introduces Goodman 2 stage 18 SEER heat pumps with R 410A communicating models VSZ13 4AA Value Split Z heat pump 18 Seer R410A heat pump units Introduces Value Line 13 SEER heat pumps with R 410A Value Split Z heat pump 13 Seer R410A heat pump units Introduces new revisions with improved circuiting for effective defrost DSZ160 1AA DSZ180 1AA VSZ130 24 amp 30 1 AB Value Split Z heat pump 13 Seer R410A heat pump units Initial release of models with 5mm Smart Coil PRODUCT IDENTIFICATION Split System Heat Pumps R410A ASZ130 4AA Amana Brand Split Z heat pump 13 Seer heat pump units Initial release of Amana Brand 13 SEER Heat Pump x Amana Brand Split Z heat pump 13 Seer heat pump units Introduces new ASZ130 1AB eto revisions with imporved circuiting for effective defrost 57140 1 Amana Brand Split Z R410A heat pump 14
47. DAMAGE PERSONAL INJURY OR DEATH ONE 1 ELEMENT ROWS L1 TWO 2 soU U 12 THREE 3 ELEMENT ROWS Li FOUR 4 ELEMENT ROWS Li NOTE WHEN INSTALLING HEATER KIT ENSURE SPEED DOES EXCEED MINIMUM BLOWER SPEED MBS SPECIFIED FOR THE AIRHANDLER HEAT ER KIT COMBINATION ON THIS UNIT S S amp R PLATE AFTER INSTALLING OPTIONAL HEAT KIT MARK AN X INTHE C PROVIDED ABOVE MARK ACCORDING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED NO MARK INDICATES NO HEAT KIT INSTALLED TERMINAL BLOCK SHOWN 1 12 EQUIPMENT GROUND M SEE NOTES FOHSOHZNODESON Y Q Q USE COPPER OR ALUMINUM WIRE 4 t RIcIGIW1 w2 Y1 Y2 JO DHT1 2 3 4 5 WC RD GRD E PLM 00000 Lomo EBTDR RD oc G NO NC PLE 20000
48. G SR 000000000 LO 9 O6 9 9 9 O 9 EBTDR 9 WH BR COPPER OR ALUMINUM POWER SUPPLY SEE RATING PLATE USE MIN 75 C FIELD WIRE THREE SPEED MOTOR WIRING SELECT MODELS ONLY SEE NOTE 3 M1 RD LOW 2 BL MEDIUM BK HIGH COLOR CODE BK_ BLACK GR_GREEN RD RED PU PURPLE YL_ YELLOW BR BROWN BL_ BLUE WH WHITE COMPONENT CODE __ EVAPORATOR MOTOR RUN CAPACITOR SR STRAIN RELIEF RELAY EBTDR ELECTRONIC BLOWER TIME DELAY RELAY WIRING CODE FACTORY WIRING HIGH VOLTAGE LOW VOLTAGE FIELD WIRING HIGH VOLTAGE LOW VOLTAGE TR TRANSFORMER PLF__ FEMALE PLUG CONNECTOR PLM__ MALE PLUG CONNECTOR FL __ FUSE LINK TL THERMAL LIMIT ITR HEAT ELEMENTS 1 Red wires to be on transformer terminal for 240 volts and on terminal 2 for 208 volts 2 See composite wiring diagrams in installation instructions for proper low voltage wiring connections 3 Confirm speed tap selected is appropriate for application If speed tap needs to be changed connect appropriate motor wire Red for low Blue for medium and Black for high speed on COM connection of the EBTDR Inactive motor wires should be connected to M1 or M2 on EBTDR 4 Brown and white wires are used with Heat Kits only 5 EBTDR has a 7 second on delay when G is energized and a 65 second off TR1 IF REPLACEMENT OF THE ORIGINAL WIRES SUPPLIED WITH THIS ASSEMBLY IS NECESSARY US
49. HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH en ere HTR2 cell ss HTR1 FL LOW VOLTAGE 1 Typical Wiring Schematic AEPF with Electric Heat This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced 116 Se aL T HTRI TE SSME 5 x 19 5 x 5 FL Y E BK HTR4 TL BLA E X
50. Most portable machines cannot clean used refrigerant to meet AHRI standards CAUTION Operating the compressor with the suction valve closed will void the warranty and cause serious compressor damage Charge the system with the exact amount of refrigerant Refer to the specification section or check the unit name plates for the correct refrigerant charge An inaccurately charged system will cause future prob lems 1 When using an ambient compensated calibrated charg ing cylinder allow liquid refrigerant only to enter the high side 2 After the system will take all it will take close the valve on the high side of the charging manifold 3 Startthe system and charge the balance of the refrigerant through the low side NOTE R410A should be drawn out of the storage container or drum in liquid form due to its fractionation properties but should be Flashed to its gas state before entering the system There are commercially available restriction devices that fitinto the system charging hose setto accomplish this DO NOT charge liquid R410A into the compressor 4 With the system still running close the valve on the charging cylinder Atthis time you may still have some liquid refrigerant in the charging cylinder hose and will definitely have liquid in the liquid hose Reseatthe liquid line core Slowly open the high side manifold valve and transferthe liquid refrigerantfromthe liquid line hose and
51. R410A Amana brand Split 2 Communicating heat pump 16 Seer R410A heat pump ASZC16 1AA units Introduces Goodman 2 stage 16 SEER heat pumps with R 410A communicating models AmanaQ brand Split Z Communicating heat pump 18 Seer R410A heat pump ASZC18 1AA units Introduces Goodman 2 stage 16 SEER heat pumps with R 410A communicating models PRODUCT IDENTIFICATION Split System Air Conditioners R410A GSX130 AA Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 13 SEER R 410A Condensers with Regal Beloit motors GSX130 1AB Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 13 SEER R 410A Condensers with Broad Ocean motors GSX130 1BA Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 13 GSX130 3AA SEER R 410A Condensers using SmartCoil coils Units will have new louvers because GSX130 4AA units are smaller Piston size change Other components unchanged GSX130181CA Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 1 5 ton 13 SEER R 410A Condensers with rotary compressor SSX140 1AA Special High Feature Split X Condenser 14 Seer condensing units Initial release of Goodman 14 SEER AC 410A x Special High Feature Split X Condenser 14 Seer condensing units Revisions have screw 55 140 1 locations moved in the top panel base pans louvers and control box covers SSX14018 241AC Special High Feature Split X Condenser 14 Se
52. Remove Restriction Replace Restricted Part S 112 Open Element or Limit on Elec Heater Test Heater Element and Controls 5 26 5 27 Dirty Air Filter e Inspect Filter Clean or Replace Dirty Indoor Coil e Inspect Coil Clean Not enough air across Indoor Coil e e Check Blow er Speed Duct Static Press Filter S 200 Too much air across Indoor Coil o Reduce Blow Speed S 200 Overcharge of Refrigerant o e Recover Part of Charge 5 113 Dirty Outdoor Coil o e Inspect Coil Clean Noncondensibles e Recover Charge Evacuate Recharge S 114 Recirculation of Condensing Air e Remove Obstruction to Air Flow Infiltration of Outdoor Air e ele Check Window s Doors Vent Fans Etc Improperly Located Thermostat Relocate Thermostat Air Flow Unbalanced e Readjust Air Volume Dampers System Undersized e e Refigure Cooling Load Broken Internal Parts Replace Compressor S 115 Broken Valves e e e Test Compressor Efficiency S 104 Inefficient Compressor e Test Compressor Efficiency S 104 Wrong Type Expansion Valve o o e Replace Valve S 110 Expansion Device Restricted e ele e Remove Restriction Replace Expansion Device S 110 Oversized Expansion Valve e e Replace Valve Undersized Expansion Valve e ele Replace Valve Expansion Valve Bulb Loose Tighten Bulb Bracket S 105 Inoperative Expansion Valve e e Check Valve Operation S 110 Loose Hold dow n Bolts Tigh
53. Scroll compressor is more tolerant of liquid refrigerant continued floodback or flooded start conditions may wash oil from the bearing surfaces causing premature bearing failure S 104 CHECKING COMPRESSOR EFFICIENCY The reason for compressor inefficiency is broken or damaged scroll flanks on Scroll compressors reducing the ability of the compressor to pump refrigerant vapor The condition of the scroll flanks is checked in the following manner 1 Attach gauges to the high and low side of the system 2 Start the system and run a Cooling Performance Test If the test shows a Below normal high side pressure b Above normal low side pressure c Low temperature difference across coil d Low amp draw at compressor Andthe 15 correct The compressor is faulty replace the compressor 100 5 105 PISTON CHART FOR ASX13 GSX13 VSX13 SSX14 ASX14 5213 GSZ13 VSZ13 units Re m ote A GSX130181B A GSX130241B VSX130241A A GSX130301 A GSX130301B VSX130301A A GSX130361A A GSX130361B VSX130361A GSX130363A A GSX130421A A GSX130421 B VSX130421A A GSX130481A A GSX130481B VSX130481A GSX130483A GSX130484A A GSX130601A A GSX130601B VSX130601B GSX130603A GSX130604A Orifice Size 0 049 0 051 0 053 0 057 0 059 0 061 0 068 0 070 0 074 0 076 0 080 0 080 0 092 0 086 0 049 0 057 0 063 0 067 0 074 0 074 0 079 0 088 0 052
54. allows airflow to be changed by 1596 The MBVC models allow airflow trimming of 10 The MBR blower cabinet uses PSC motor Itis approved for applications with cooling coils of up to 0 5 inches W C external static pressure The MBR MBE MBVC blower cabinets with proper coil matches canbe positioned for upflow counterflow horizontal right or horizontal left operation All units are constructed with R 4 2 insulation In areas of extreme humidity greater than 80 consistently insulate the exterior of the blower with insulation having a vapor barrier equivalent to ductwork insulation providing local codes permit coils are equipped with a thermostatic expansion valve that has a built in internal check valve for refrigerant metering The CACF CAPF CHPF coils are equipped with a fixed restrictor orifice The coils are designed for upflow counterflow or horizontal application using two speed direct drive motors on the CACF CAPF CHPX models and BPM Brushless Permanent Magnet or ECM motors on the MBE MBVC models Communicating Unitary Control UC PCB The Communicating System Unitary Control PCB is a micro processor based control for heat pump and air conditioning condensing units with single phase compressors up to 5 ton capacity operating on standard residential or Delta and Wye commercial power The control incorporates the basic func tionality of existing defrost controls outdoor thermostats cont
55. and air flow Low voltage may cause insufficient heating S 2 CHECKING WIRING AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Check wiring visually for signs of overheating damaged insulation and loose connections 2 Use an ohmmeter to check continuity of any suspected open wires 3 If any wires must be replaced replace with comparable gauge and insulation thickness S 3 CHECKING THERMOSTAT WIRING AND ANTICIPATOR THERMOSTAT WIRE SIZING CHART MIN COPPER WIRE LENGTH OF RUN GAUGE AWG 25 feet 50 feet 75 feet 100 feet 125 feet 150 feet ComfortNet Ready Models 1 Legacy Thermostat Wiring The maximum wire length for 18 AWG thermostat wire is 100 feet 2 Communicating Thermostat Wiring The maximum wire length for 18 AWG thermostat wire is 100 feet S 3A THERMOSTAT AND WIRING WARNING Line Voltage now present With power ON thermostat calling for cooling 1 Use a voltmeter to check for 24 volts at thermostat wires and Y in the condensing unit control panel 2 No voltage indicates trouble in the thermostat wiring or externaltransformer source 3 Checkthe continuity ofthe thermostat and wiring Repair or replace as necessary 47 SERVICING Indoor Blower Motor With power ON WARNING Line V
56. and supplies 24Vac to O and W2 Thereversing valveis energized and the contactson HR1 close and turns on the electric heater s The unit will continue to run in this mode until the defrost cycle is completed 5 5 When the temperature of the outdoor coil rises high enough to causes the defrost thermostat to open the defrost cycle will be terminated If at the end of the programmed 10 minute overridetime the defrostthermo stat is still closed the defrost board will automatically terminate the defrost cycle 5 6 When the defrost cycle is terminated the contacts of the HVDR relay will close to start the outdoor fan and the contacts of the LVDR relay will open and turn off the reversing valve and electric heater s The unit will now be back in a normal heating mode with a heat pump demand for heating as described in the Heating Opera tion in section 4 MBE AEPF WITH GSX SSX ASX DSX VSX MBE ELECTRONIC BLOWER TIME DELAY RELAY AEPF AIR HANDLER SEQUENCE OF OPERATION This document covers the basic sequence of operation fora typical application with a mercury bulb thermostat When digital electronic thermostat is used the on off staging ofthe auxiliary heat will vary Refer to the installation instruc 85 SERVICING tions and wiring diagrams provided with the MBE AEPF for specific wiring connections dip switch settings and system configuration MBE AEPF WITH SINGLE STAGE GSX ASX SSX and VSX CONDENSERS When us
57. and wire atest cord to the disconnect switch NOTE The wire size of the test cord must equal the line wire size and the fuse must be of the proper size and type 2 With the protective terminal cover in place use the three leads to the compressor terminals that were discon 79 SERVICING nected at the nearest point to the compressor and connect the common start and run clips to the respective leads 3 Connect good capacitors of the right MFD and voltage rating into the circuit as shown 4 With power ON close the switch A WARNING Line Voltage now present A If the compressor starts and continues to run the cause for failure is somewhere else in the system B If the compressor fails to start replace COPELAND COMPRESSOR 12345 YEAR MONTH SERIAL PLANT NUMBER S 17E CHECKING 3 PHASE SCROLL COMPRESSOR ROTATION Verify the proper rotation of Copeland scroll compressors as follows NOTE The compressor may run backwards noisy operation for 1 or 2 seconds at shutdown This is normal and does not harm the compressor 1 Install gauges and verify that the suction pressure drops while the discharge pressure increases 2 Listen for normal compressor sound levels Reverse rotation results in elevated or unusual sound levels 3 Reverse rotation will result in substantially reduced amp draw fromtabulated values To correct improper rotation switch any two power supply leads at the outdoor
58. be drawn in 2 Plug or cap all openings Remove all burrs and clean the brazing surfaces of the tubing with sand cloth or paper Brazing materials do not flow well on oxidized or oily surfaces gt Clean the inside of all new tubing to remove oils and pipe chips When brazing sweep the tubing with dry nitrogen to prevent the formation of oxides on the inside surfaces Complete any repair by replacing the liquid line drier in the system evacuate and charge 97 SERVICING BRAZING MATERIALS IMPORTANT NOTE Torch heat required to braze tubes of various sizes is proportional to the size of the tube Tubes of smaller size require less heat to bring the tube to brazing temperature before adding brazing alloy Applying too much heat to any tube can melt the tube Service personnel must use the appropriate heat level for the size of the tube being brazed NOTE Theuseofaheat shield when brazing is recommended to avoid burning the serial plate or the finish on the unit Heat trap or wet rags should be used to protect heat sensitive components such as service valves and TXV valves Copper to Copper Joints Sil Fos used without flux alloy of 15 silver 80 copper and 5 phosphorous Recom mended heat 1400 F Copper to Steel Joints Silver Solder used without a flux alloy of 30 silver 38 copper 32 zinc Recommended heat 1200 F S 101 LEAK TESTING NITROGEN OR NITROGEN TRACED
59. below 9 Depress the orange power button to turn off motor FF ON ON ON ON 10 Disconnect power Disconnect diagnostic tool SERVICING 11 Reconnect the 4 wire harness from control board to motor Electrical Checks High Voltage Power Circuits AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect power to air handler or modular blower 2 Disconnect the 5 circuit power connector to the ECM motor 3 Turn on power to air handler or modular WARNING ___ Line Voltage now present 4 Measure voltage between pins 4 and 5 on the 5 circuit connector Measured voltage should be the same as the supply voltage to the air handler or modular for 120VAC Power Connector Lines 1 and 2 will be connected applications only Gnd AC Line Connection AC Line Connection fog 5 Measure voltage between pins 4 and 3 Voltage should be approximately half of the voltage measured in step 4 6 Measure voltage between pins 5 and 3 Voltage should be approximately half of the voltage measured in step 4 7 If no voltage is present check supply voltage to air handler or modular blower See section S 1 8 Disconnect power to air handler or modular blower Reconnect the 5 circuit power harness disconnected in step 2 Ele
60. charging cylinder hose into the suction service valve port CAREFUL Watch so that liquid refrigerant does not enter the compressor Final Charge Adjustment The outdoor temperature must 60 F or higher Set the room thermostat to COOL fan switch to AUTO and set temperature control well below room temperature After system has stabilized per startup instructions com pare the operating pressures and outdoor unit amp draw to the numbers listed on the performance label on the outdoor unit If pressures and amp draw are too low add charge If pressures and amp draw aretoo high remove charge Check subcooling and superheat as detailedin the following section 5 With the system still running remove hose and reinstall both valve caps 6 Check system for leaks 99 SERVICING Do notcharge aremote condensing unit with a non matching evaporator coil or a system where the charge quantity is unknown Do notinstall or charge R410A condensers matched with coils having capillary tubes or flow control restrictors AHRI rated Coil combinations with thermostatic expansion valves TEV s should be charged by subcooling See Checking Subcooling and Superheat sections inthis manual Subcooling values for Ultron system are found in the Technical Information manuals for Ultron outdoor units Due to their design Scroll compressors are inherently more tolerant of liquid refrigerant NOTE Even though the compressor section of a
61. components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device ASZ16 M NECI EIE RE E Description bns sire I mw ow m wm 1 Installed on indoor coil Required for heat pump applications where ambient temperatures fall below 0 F with 5096or higher relative humidy Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device 28 ACCESSORIES ASZ DSZ18 Description umm pm p X Bm Installed on indoor coil Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of start assi components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device 29 ACCESSORIES ComfortNet ASZC DSZC16 ASZC DSZC18 emere ue ute etm DSZC16024 DSZC16036 DSZC16048 DSZC16060 DSZC18036 DSZC18048 DSZC18060 Dow
62. control determines the appropriate airflow demand for high stage heat pump auxiliary heat operation and operates the ECM blower motor at that airflow demand The control determines which airflow demandis greatest and applies that demand when operating the ECM blower motor 2 8 The system operates at high stage heat pump heating plus auxiliary heat 2 9 Upon satisfying the thermostat the and Y 1 thermo stat contacts or G Y1 Y2 and W1 W contacts open removing 24VAC from the integrated air handler control The compressor and condensor fan motor are de energized immediately The integrated AH control continues to operate the ECM blower motor for an OFF delay period then applies the off portion ofthe heat pump heating ramping profile The ECM blower motor is then de energized 3 0 Continuous Fan Operation 3 1 On ademand for continuous fan operation the thermo stat closes the contacts providing 24 VAC to the terminal at the integrated air handler control The control energizes the variavble speed ECM motor at 30 ofthe air handler s maximum airflow capability 3 2 Removing the thermostat demand for continuous fan opens the G contacts removing 24VAC from the integrated air handler control The integrated AH control immediately de energizes the ECM blower motor 4 0 Defrost Operation 4 1 Thecontrolinthe outdoorunit determines when a defrost cycle is needed Upon determing that a defrost cycle is nee
63. gi d a CHARGING CYLINDER AND SCALE VACUUM PUMP ADAPTER TO UNIT SERVICE VALVE PORTS VACUUM PUMP i NN EVACUATION 3 Ifthe vacuum pump is working properly close the valve to the vacuum thermocouple gauge and open the high and low side valves to the high vacuum manifold set With the valve on the charging cylinder closed open the manifold valveto the cylinder 4 Evacuate the system to at least 29 inches gauge before opening valve to thermocouple vacuum gauge 5 Continue to evacuate to a maximum of 250 microns Close valve to vacuum pump and watch rate of rise If vacuum does notrise above 1500 microns in three to five minutes system can considered properly evacuated 6 If thermocouple vacuum gauge continues to rise and levels off at about 5000 microns moisture and non condensables are still present If gauge continuesto rise a leak is present Repair and re evacuate 7 Close valve to thermocouple vacuum gauge and vacuum pump Shut off pump and prepare to charge 5 103 CHARGING AX WARNING REFRIGERANT UNDER PRESSURE Do not overcharge system with refrigerant Do not operate unit vacuum or at negative pressure Failure to follow proper procedures may cause property damage personal injury or death CAUTION Use refrigerant certified to AHRI standards Used refrigerant may cause compressor damage and will void the warranty
64. heating except during a defrost cycle 5 1 The heat pump will be on and operating in the heating mode as described the Heating Operation in section 4 5 2 The defrost control in the heat pump unit checks to see if a defrostis needed every 30 60 or 90 minutes of heat pump operation depending on the selectable setting by monitoring the state of the defrost thermostat attached to the outdoor coil 5 3 If the temperature of the outdoor coil is low enough to cause the defrost thermostat to be closed when the defrost board checks it the board will initiate a defrost cycle 5 4 When a defrost cycle is initiated the contacts of the HVDR relay on the defrost board open and turns off the outdoor fan The contacts of the LVDR relay on the defrost board closes and supplies 24Vac to O and W2 The reversing valve is energized and the contacts on HR1 close and turns onthe electric heater s The unit will continue to run in this mode until the defrost cycle is completed 5 5 When the temperature of the outdoor coil rises high enough to causes the defrost thermostat to open the defrost cycle will be terminated If at the end of the programmed 10 minute override time the defrost thermo stat is still closed the defrost board will automatically terminate the defrost cycle 5 6 When the defrost cycle is terminated the contacts of the HVDR relay on the defrost board will close to start the outdoor fan and the contacts of the relay wi
65. heating ramping profile after any blower ON delays have expired After complet ing any blower ON delays and ramping profile the control operates the variavble speed ECM motor at the de mandedairflow 2 2 The system operates at low stage auxiliary heat 2 3 If the thermostat demand cannot be met on low stage auxiliary heat the thermostat will close the W2 con tacts providing 24VAC to the W2 terminal at the integrated AH control Thermostat W1 contacts re main closed 2 4 Upon receiving the high stage auxiliary heat demand the control operates the ECM blower motor atthe demanded airflow 2 5 The system operates at high stage auxiliary heat as demanded by the thermostat 2 6 Upon satisfying the thermostat the W1 thermostat contacts or W1 and W2 contacts open removing 24VAC from the integrated air handler control The integrated AH control continues to operate the ECM blower motorfor an OFF delay period then applies the off portion of the heating ramping profile The ECM blower motor is then de energized 3 0 Continuous Fan Operation 3 1 Onademand for continuous fan operation the thermo stat closes the G contacts providing 24VAC to the G terminal at the integrated air handler control The control energizes the variavble speed ECM motor at 30 of the air handler s maximum airflow capability 3 2 Removing the thermostat demand for continuous fan opens the G contacts removing 24VAC from the integrated
66. is sup plied to terminal E W1 of the VSTB inside the MBE AEPF unit The VSTB will supply 24Vac to heat sequencer HR1 on the electric heater assembly 4 4 HR1 contacts M1 and M2 will close within 10 to 20 seconds and turn on heater element 1 At the same time if the heater assembly contains a second heater element HR1 will contain a second set of contacts M3and M4 which will close and turn on heater element 2 Note If more than two heater elements the heater assembly it will contain a second heat sequencer HR2 which will control the 3 and 4 heater elements if available For the 3 and 4 heater elements to operate on second stage auxiliary heat demand the PJ4 jumper on the VSTB inside the MBE AEPF must be cut If the W2 W3 demand cannot be satisfied by the heat pump the temperature indoors will continue to drop The room thermo stat will then energize W3 W4 and 24Vac will be supplied to W W2 ofthe MBE The VSTB will supply 24Vac to HR2 onthe electric heater assembly When the W3 W4 demand is satisfied the room thermostat will remove the 24Vac from W W 2 of the MBE AEPF The contacts on HR2 will open between 3010 70 seconds and heater elements 3 and 4 will be turned off On most digital electronic thermostats W3 W4 will remain energized until the first stage demand Y1 is satisfied and then the Y1 Y2 W2 W3 and W3 W4 demands will be removed 4 5 A
67. must be on high speed For static pressure of 0 6 or higher air handler must be on medium or high speed 35 ACCESSORIES ELECTRIC HEAT KIT APPLICATIONS AEPF AEPF183016 AEPF 303616 AEPF3 13716 AEPF 426016 2155 21 SEX Revision level that may or may not be desgnated C Circuit Breaker option 1 This heater kit can be used ONLY for 1000 or higher applications 2 This heater kit can be used ONLY for 1200 or higher applications ELECTRIC HEAT KIT APPLICATIONS ASPF ESI ASPF183016 ASPF303616 ASPF313716 ASPF426016 HRK 08 HKR 08C gt lt gt lt I m i n gt lt gt lt gt lt gt lt gt lt gt lt n gt N gt n Revision levelthat may or may not be designated C Circuit Breaker option Heat kit requires 3 phase power supply 1 Air handler must be on speed tap 2 3 4 or 5 2 Air handler must be on speed tap 4 or 5 Air handler must be on speed tap 3 4 or 5 36 PRODUCT DESIGN This section gives a basic description of cooling unit opera tion its various components and their basic operation Ensure your system is properly sized for heat gain and loss according to methods of the Air Conditioning Contractors Association ACCA or equivalent CONDENSING UNIT The condenser air is pulled through the condenser coil by a direct drive p
68. on low stage cooling the CTKO1AA thermostat sends a request for high stage cooling to the heat pump The heat pump in turn sends a request for high stage fan speed to the air handler modular blower The AH control increases the blower speed to the high stage cooling speed 1 6 The heat pump s unitary control energizes the high stage compressor solenoid and switches the condenser fan motor to high speed The reversing valve remains energized 1 7 The system operates at high stage cooling 1 8 the thermostat demandis satisfied the CTK01AA thermostat commands the UC control to end cooling operation Theheatpump de energizes the compressor condenser fan motor andreversing valve The UC control continues providing a fan requestuntil any cooling blower OFF delays have expired 2 0 Heating Operation Outdoor Temperature Above the Heat Pump Balance Point 2 1 The thermostat sends a request for the outdoor air temperature to the heat pump The heatpump returns an outdoor air temperature that is above the balance point temperature Heat pump heating is en abled 2 2 The CKTO1AA thermostat sends a request for low stage heat pump heating to the unitary UC control in the heat pump The UC control receives the command and processes any compressor and fan delays 2 3 The UC control sends a request for low stage fan speed to the air handler modular blower The blower energizes the ECM blower motor at the appropriate sp
69. plugged equalizer tube S 107 UNDERFEEDING Underfeeding by the expansion valve results in low system capacity and low suction pressures If these symptoms are observed 1 Check for a restricted liquid line or drier Arestriction will be indicated by a temperature drop across the drier 2 Check the operation of the power element of the valve as described in S 110 Checking Expansion Valve Operation 5 108 SUPERHEAT The expansion valves are factory adjusted to maintain 8 to 12 degrees superheat of the suction gas Before checking the superheat or replacing the valve perform the procedures outlined under Air Flow Refrigerant Charge Expansion Valve Overfeeding Underfeeding These are the most common causesfor evaporator malfunction CHECKING SUPERHEAT Refrigerant gas is considered superheated when its tempera tureis higherthanthe saturationtemperature corresponding toits pressure The degree of superheat equals the degrees oftemperature increase abovethe saturationtemperature at existing pressure See Temperature Pressure Chart on following pages CAUTION To prevent personal injury carefully connect and disconnect manifold gauge hoses Escaping liquid refrigerant can cause burns Do not vent refrigerant to atmosphere Recover during system repair or final unit disposal 1 Run system at least 10 minutes to allow pressure to stabilize 2 Temporarily install thermometer on suction large
70. pressure control will automatically reset itself with a rise in pressure The low pressure control is designed to cut out open at approximately 21 PSIG It will automatically cut in close at approximately 50 PSIG Test for continuity using VOM if notas above replace the control S 15 CHECKING CAPACITOR CAPACITOR RUN A run capacitor is wired across the auxiliary and main windings of a single phase permanent split capacitor motor The capacitors primary function is to reduce the line current while greatly improving the torque characteristics of amotor This is accomplished by using the 90 phase relationship between the capacitor current and voltage in conjunction with the motor windings so that the motor will give two phase operation when connected to a single phase circuit The capacitor also reduces the line current to the motor by improving the power factor The line side of this capacitor is marked with COM and is wired to the line side of the circuit CAPACITOR START SCROLL COMPRESSOR MODELS In most cases hard start components are not required on Scroll compressor equipped units due to a non replaceable check valve located in the discharge line of the compressor However in installations that encounter low lock rotor volt age hard start kit can improve starting characteristics and reduce light dimming within the home Only hard start kits approved by Amana brand or Copeland should be used Kick Sta
71. pump demand for heating as described in the Heating Operation in section 4 SEQUENCE OF OPERATION AVPTC MBVC with Single Stage Condensers 24VAC Legacy Wired Systems 1 0 Cooling Operation 1 1 On a demand for single stage cooling operation the thermostat closes the G and Y contacts providing 24VAC to the G Y1 and Y2 terminals at the integrated air handler control The integrated AH control initiates the selected cooling ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control oper ates the variavble speed ECM motor at the demanded airflow 1 2 The compressor and condensor fan motor is energized by the closing of the thermostat Y contacts 1 3 The system operates at single stage cooling 1 4 Upon satisfying the thermostat the G and Y thermo stat contacts open removing 24VAC from the both the outdoor condensor and integrated air handler control The compressor and condensor fan motor are both de energized immediately The integrated AH control con 90 tinuesto operatethe ECM blower motorfor an OFF delay period then applies the off portion of the selected ramping profile The ECM blower motor is then de energized 2 0 Heating Operation 2 1 Onademand for auxiliary heat operation the thermostat closes the W1 contacts providing 24VAC to the W1 terminal at the integrated air handler control The integrated AH control initiates the
72. replace 3 Replace liquid line drier evacuate and recharge CHECKING EQUALIZATION TIME During the OFF cycle the high side pressure bleeds to the low side through the fixed orifice restriction device Check equalization time as follows 1 Attach a gauge manifold to the suction and liquid line dill valves 2 Start the system and allow the pressures to stabilize 3 Stop the system and check the time it takes for the high and low pressure gauge readings to equalize If it takes more than seven 7 minutes to equalize the restrictor device is inoperative Replace install a liquid line drier evacuate and recharge S 112 CHECKING RESTRICTED LIQUID LINE When the system is operating the liquid line is warm to the touch If the liquid line is restricted a definite temperature drop will be noticed at the point of restriction In severe cases frost will form at the restriction and extend down the line in the direction of the flow Discharge and suction pressures will be low giving the appearance of an undercharged unit However the unit will have normal to high subcooling Locate the restriction replace the restricted part replace drier evacuate and recharge S 113 OVERCHARGE OF REFRIGERANT An overcharge of refrigerant is normally indicated by an excessively high head pressure Anevaporator coil using anexpansion valve metering device will basically modulate and control a flooded evaporator and prevent liquid ret
73. unit contactor The 3 phase scroll compressors are direction of rotation sensitive They will rotate in either direction depending on the phasing of the power There is no negative impact on durability caused by operating 3 phase compressors in reversed rota tion The compressor s internal protector will trip de energiz ing the compressor Continued operation of 3 phase scroll compressors with the rotation reversed will contribute to compressor failure All 3 phase scroll compressors should be checked for correct phase rotation S 18 TESTING CRANKCASE HEATER OPTIONAL ITEM The crankcase heater must be energized a minimum of four 4 hours before the condensing unit is operated 80 Crankcase heaters are usedto prevent migration or accumu lation of refrigerant in the compressor crankcase during the off cycles and prevents liquid slugging or oil pumping on start up Acrankcase heater will not prevent compressor damage due to a floodback or over charge condition EE WARNING oo Disconnect ALL power before servicing 1 Disconnect the heater lead in wires 2 Using an ohmmeter check heater continuity should test continuous not replace NOTE Thepositive temperature coefficient crankcase heater is a 40 watt 265 voltage heater The cool resistance of the heater will be approximately 1800 ohms The resistance will become greater as the temperature of the compressor shell increases 5 21 CHECKING REVERSING VALVE AND
74. when used in conjunction with an indoor coil using non bleed thermal expansion valve refrigerant metering device 23 ACCESSORIES ASX DSX18 sae ASX DSX18 ASX DSX18 ASX DSX18 mw mmm C E ae nw Installed on indoor coil 8 Required for heat pump applications where ambient temperatures fall below 0 with 50 or higher relative humidy Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of Start assist components when used in conjunction with an indoor coil using non bleed thermal expansion valve refrigerant metering device 24 ACCESSORIES ComfortNet ASXC DSXC16 ASXC DSXC18 Mode DSXC 16024 05 16036 05 16048 05 16060 05 18036 DSXC18048 05 18060 pug Dow wa TX5N4 CSR U 1 Hard start Kit CSR U 2 Hard start Kit CSR U 3 FSKO1A im Kit d 2 ines mon Outdoor limited See limited See T d d ue Thermostat B1141643 24V Transformer ASXC 16024 ASXC16024 ASXC16024 ASXC16024 ASXC16024 Model DSXC 16024 DSXC16024 DSXC16024 DSXC16024 DSXC16024 CSR U 1 Hard start Kit CSR U 2 Hard start Kit CSR U 3 Hard start Kit Protection Kit Liquid Line Solenoid Valve X X Outdoor Thermostat Lockout Thermostat B1141643 24V Transformer Maximum Number of Accessory Kits Install
75. 0 oc BK RD BL BR NOTE4 BL TAKA BL GR RD 6 5 Or 1 RD 2 2 EM oXFMR R i 5 mg OR HB 5 RD EBTDR RD 2 1 2 JODHA 2131415 XFMR C ie a NOTES COLOR CODE WIRING CODE GR 2G p GR AHNE BK_BLACK GR_GREEN FACTORY WIRING RD_ RED PU_ PURPLE HIGH VOLTAGE YL YELLOW BR_BROWN LOW VOLTAGE m BL BL BLUE WH WHITE FIELD WIRING BL HIGH VOLTAGE COMPONENT CODE LOWVOLTAGE EM__ EVAPORATOR MOTOR TR TRANSFORMER COPPER OR ALUMINUM __ TERMINAL BOARD PLF FEMALE PLUG CONNECTOR SEE RATING PLATE R RELAY _ MALE PLUG CONNECTOR CR CONTROL RELAY FL FUSE LINK USE MIN 75 C FIELD WIRE EBTDR ELECTRONIC BLOWERTIME TL THERMAL LIMIT tie DELAY RELAY HEAT ELEMENTS 1 Red wires to be on transformer terminal 3 for 240 volts and on terminal 2 for 208 volts 2 See composite wiring diagrams in installation instructions for proper low voltage wiring connections 3 Confirm speed tap selected is appropriate for application If speed tap needs to be changed connect red wire from terminal 4 of CR relay to appropriate tap 4 Brown and white wires are used with Heat Kits only IF REPLACEMENT OF THE ORIGINAL WIRES SUPPLIED WITH THIS ASSEMBLY IS NEC ESSARY USE WIRE THAT CONFORMS TO THE NATIONAL ELECTRIC CODE 0140A00034 Typical Wiring Schematic ASPF with Electric Heat This wiring dia
76. 0 watt minimum 2 For all line set applications over 80 feet a TXV is recom mended The subcooling should be 6 2 3 Hard Start Assist increased charge level in long line applications can require extra work from the compressor at start up A hard start assist device may be required to overcome this 4 Liquid Line Solenoid a long line set application can critically increase the charge level needed for a system As a result the system is very prone to refrigerant SERVICING migration during its off cycle and aliquid line solenoid will help minimize this A liquid line solenoid is recom mended for any long line application on straight cooling units Tube Sizing 1 Inlongline applications the equivalentline length is the sumofthe straightlength portions ofthe suction line plus losses in equivalent length from 45 and 90 degree bends Select proper suction tube size based on equivalent length of the suction line see Tables 4 amp 5 and recalculated system capacity Equivalent length Length horizontal Length vertical Losses from bends see Tables 4 amp 5 Example using 3 elbow 150 feet of straight tubing four short radius elbows X 1 7 2long radius elbows x 1 5 150 3 4 3 156 4 equivalentfeet 2 Foranyresidential split system installed with along line set 3 8 liquid line size must be used Limiting the liquid line size to 3 8 is critical since an increased refrigerant charge
77. 1 to terminal on the VSTB inside the MBE AEPF must remain con nected 1 1 On ademand for cooling the room thermostat energizes and Y1 and 24Vac is supplied to and Ylow Y1 ofthe MBE AEPF unit The VSTB inside the MBE AEPF will turn on the blower motor and the motor will ramp up to 60 of the speed programmed in the motor based on the settings for dip switch 5 and 6 The VSTB will supply 24Vac to Ylow Y 1 at the condenser and the compres sor and condenser fan starts in low speed operation 1 2 If first stage cooling cannot satisfy the demand the room thermostat will energize Y2 and supply 24Vac to the MBE AEPF unit The blower motor will change to the cfm for high speed operation and the VSTB will supply 24Vac to Y Y2 at the condenser and the compressor and condenser fan will change to high speed operation When the Y2 demand is satisfied the thermostat will remove the Y2 demand and the VSTB will remove the 24Vac from Y Y2 atthe condenser The blower will drop to 60 of the programmed cfm andthe compressor and condenser fan will change to low speed On most digital electronic thermostats Y2 will remain en ergized until the first stage cooling demand Y1 is satisfied and then the G Y1 and Y2 demands will be removed 1 3 When the first stage cooling demand Y1 is satisfied the room thermostat removes the 24Vac from an
78. 1 terminals at the integrated air handler control The integrated AH 92 control initiates the selected cooling ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control operates the variavble speed ECM motor atthe low stage cooling airflow 1 2 The low stage compressor and condensor fan motor speeds are energized by the closing of the thermostat Y1 contacts The reversing valve is energized with the closing of the thermostat O contacts 1 3 The system operates at low stage cooling 1 4 If the thermostat demand cannot be met with low stage cooling the thermostat closes the Y2 contacts provid ing 24VAC to the Y2 terminal at the AH control The integrated AH control operates the ECM blower motor at the high stage cooling airflowdemand Thermostat G and Y1 contacts remain closed 1 5 The compressor and condensor fan motor high stage speeds are energized by the closing of the thermostat Y2 contacts 1 6 The system operates at high stage cooling 1 7 Upon satisfying the thermostat the and Y1 or Y1 and Y2 thermostat contacts open removing 24VAC from the both the outdoor condensor and inte grated air handler control The compressor condensor fan motor and reverving valve are all de energized imme diately The integrated AH control continues to operate the ECM blower motor for an OFF delay period then appliesthe off portio
79. 14 16 18 54 50 189 195 202 208 215 222 229 236 243 251 259 266 274 283 291 299 308 317 326 335 345 354 364 374 384 395 406 416 427 439 450 462 474 486 499 58 60 62 64 66 68 70 72 74 76 78 80 82 84 86 88 90 92 94 96 98 100 102 104 106 108 110 112 114 116 118 120 122 124 126 128 66 64 62 60 68 66 64 62 70 68 66 64 72 70 68 66 74 72 70 68 76 74 72 70 78 76 74 72 80 78 76 74 82 80 78 76 84 82 80 78 86 84 82 80 88 86 84 90 88 86 92 90 88 94 92 90 96 94 92 98 96 94 100 98 96 102 100 98 104 102 100 98 106 104 102 100 108 106 104 102 110 108 106 104 112 110 108 106 114 112 110 108 116 114 112 110 118 116 114 112 120 118 116 114 122 120 118 116 124 122 120 118 103 SERVICING SUPERHEAT AND SUBCOOLING ADJUSTMENT ON TXV APPLICATIONS 1 Run system at least 10 minutes to allow pressure to stabilize 2 Temporarily install thermometer on liquid small line near liquid line service valve with adequate contact and insulate for best possible reading 3 Check subcooling and superheat Systems with TXV application should have a subcooling and superheat of 7 2 F a If subcooling and superheat low adjust TXV to 7 9 F then check subcooling b If subcooling is low and superheat is high add charge to raise subcooling to 7 2 F then check superheat ddfsubcooling and superheatare high adjust TXV valve to 7 9 F the
80. 75 21512 9 gt 2 5 15 isle leis leis isis 9 512121515 5 5 8 8 88 5 5 2 lx 51515 41515 519181515 E 9 9 O O JZ IO 12 3 3 Pow er Failure Test Voltage 5 1 Blow Fuse e e Inspect Fuse Size amp 5 1 Unbalanced Pow Test Voltage 5 1 Loose Connection e e Inspect Connection Tighten S 2 S 3 Shorted or Broken Wires Test Circuits With Ohmmeter 5 2 5 3 Open Fan Overload Test Continuity of Overload S 17A Faulty Thermostat eje Test Continuity of Thermostat amp Wiring 5 3 Faulty Transformer Check Control Circuit w ith Voltmeter S4 Shorted or Open Capacitor Test Capacitor S 15 Internal Compressor Overload Open e Test Continuity of Overload S 17A Shorted or Grounded Compressor e Test Motor Windings S 17B Compressor Stuck e e Use Test Cord 5 170 Faulty Compressor Contactor e e Test Continuity of Coil amp Contacts S 7 S 8 Faulty Fan Relay e Test Continuity of Coil And Contacts S 7 Open Control Circuit Test Control Circuit w ith Voltmeter 5 4 Low Voltage eje Test Voltage S 1 Faulty Evap Fan Motor Repair Replace 5 16 Shorted or Grounded Fan Motor e Test Motor Windings 5 16 Improper Cooling Anticipator e Check Resistance of Anticipator 5 3 Shortage of Refrigerant e Test Leaks Add Refrigerant S 101 103 Restricted Liquid Line e
81. AEPF unit The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings for dip switch 1 and 2 The VSTB will supply 24Vac to heat sequencer HR1 on the electric heater assembly 2 2 HR1 contacts M1 and M2 will close within 10 to 20 seconds and turn on heater element 1 At the same time if the heater assembly contains a second heater element HR1 will contain a second set of contacts M3 and M4 which will close and turn on heater element 2 Note If more than two heater elements are on the heater assembly it will contain a second heat sequencer HR2 which will control the 34 and 4 heater elements if available For the 3 4 heater elements to operate on a second stage heat demand the PJ4 jumper on the VSTB inside the MBE AEPF must be cut With the PJ4 jumper cut the VSTB will run the blower motor on low speed ona W1 only demand Ifthe first stage heat demand W1 cannot be satisfied by the heat pump the temperature indoors will continue to drop The room thermostat will then energize W2 and 24Vac will be supplied to HR2 on the heater assembly and the blower motor will change to high speed When the W2 demand is satisfied the room 86 thermostat will remove the 24Vac from W2 and the VSTB will remove the 24Vac from HR2 The contacts on HR2 will open between 3010 70 seconds and heater elements 3 and 4 will be turned off and the blower motor will c
82. E WIRE THAT CONFORMS TO THE NATIONAL ELECTRIC CODE delay when G is de energized Typical Wiring Schematic ADPF ARPF ARUF with Electric Heat This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced 114 0140M00037 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH R R 208 240 HTR2 FL HTR3 TL PU BK FL HTR4 TL BK a N NM BL EBTDR 2 R G f ON p gt L PU BL TR NO ES i ya E XFMR R Y a BL XEMR C COM 1 we 5 a SPEEDUP Mic w 6 Y BL BK R L1 L2 11 12 ce EQUIPMENT GROUND USE COPPER OR ALUMINUM WIRE Typical Wiring Schematic MBR Blower with Electric Heat This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced ACCESSORIES WIRING DIAGRAMS
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84. ER Air Handler Models All Models will be suitable for use with R 22 and R 410A AEPF 16BA A Single Piece E Multi Position Variable Speed Painted Flowrator Revision introduces new models adding lower kw hit kits on the S amp R plate A Single Piece E Multi Position Variable Speed Painted Elowrator Revision replaces the AEPF 16BB current spot welded blower housing with the same cinched or crimped design used on the 8096 furnace line m A Single Piece E Multi Position Variable Speed Painted Flowrator Revision replaces all AEPF 16CA Dep ARPFcoils using fin with louver enhanced fin 1 Single Piece E Multi Position Variable Speed Painted Flowrator Introduction of R 22 Only Air Handlers A Single Piece E Multi Position Variable Speed Painted Flowrator AEPF and A Single Piece 5 Multi Position EEM motor Painted Flowrator ASPF Introduction of 3 Ton Air Handler units with 3 row coil ASPF 16AA 5 Multi Position motor Painted Flowrator Introduces new ASPF Air A Single Piece Multi Position EEM motor Painted Elowrator Revision introuces modified ASPF 16BA ASPF control scheme to ensure blower operation during and after call for heat on units with heat kits and replacing wavy fin with louver enhanced fin on coil ASPF183016CA A Single Piece S Multi Position EEM motor Painted Flowrator Revision replaces existing air ASPF426016CA handler copper coils and other associated parts with aluminum compo
85. ILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH E x z gt 5 6 gt os m 2 Fr ao go N Is 5 du olm 8 5 ul o 2 a 20 m c x gt 5 a N z 9 a s Qc m RE amp a it THERMOSTATS IHUMIDISTAT T T T c V m MEATPUMP HEATER 24 YCON ee r R 2 ED 1 2 Ee ae de D i3 c AS a m E ae ee Og H VSTB ae PN 81368270 REV Blower Section Typical Wiring Schematic MBE Blower with Electric Heat This wiring diagram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced 117 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY
86. LURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH To locate an authorized servicer please consult your telephone book or the dealer from whom you purchased this product For further assistance please contact CONSUMER INFORMATION LINE GOODMAN BRAND PRODUCTS AMANA BRAND PRODUCTS TOLL FREE TOLL FREE 1 877 254 4729 U S only 1 877 254 4729 U S only email us at customerservice goodmanmfg com email us at hac consumer affairs amanahvac com fax us at 713 856 1821 fax us at 931 438 4362 Not a technical assistance line for dealers Not a technical assistance line for dealers Outside the U S call 1 713 861 2500 Outside the U S call 1 931 433 6101 Not a technical assistance line for dealers Not a technical assistance line for dealers Your telephone company will bill you for the call Your telephone company will bill you for the call IMPORTANT INFORMATION SAFE REFRIGERANT HANDLING While these items will not cover every conceivable situation they should serve as a useful guide REFRIGERANTS ARE HEAVIER THAN AIR THEY CAN PUSH OUT THE OXYGEN IN YOUR LUNGS OR IN ANY ENCLOSED SPACE TO AVOID POSSIBLE DIFFICULTY IN BREATHING OR DEATH NEVER PURGE REFRIGERANT INTO AN ENCLOSED ROOM OR SPACE By LAW ALL REFRIGERANTS MUST BE RECLAIMED IF AN INDOOR LEAK IS SUSPECTED THOROUGHLY VENTILATE THE AREA BEFORE BEGINNING WORK LiQUID REFRIGERANT CAN BE VERY COLD TO AVOID POSSIBLE FROST BITE OR
87. Liquid reaching the compressor can weaken or break compressor valves The compressor increases the pressure of the gas thus adding more heat and discharges hot high pressure super heated gas into the outdoor condenser coil In the condenser coil the hot refrigerant gas being warmer than the outdoor air first loses its superheat by heat trans ferred from the gas through the tubes and fins ofthe coil The refrigerant now becomes saturated part liquid part vapor and then continues to give up heat until it condenses to a liquid alone Once the vaporis fully liquefied it continues to give up heat which subcools the liquid and it is ready to repeat the cycle HEATING The heating portion of the refrigeration cycle is similarto the cooling cycle By energizing the reversing valve solenoid coil the flow of the refrigerant is reversed The indoor coil now becomes the condenser coil and the outdoor coil becomes the evaporator coil 40 The check valve at the indoor coil will open by the flow of refrigerant letting the now condensed liquid refrigerant by pass the indoor expansion device The check valve at the outdoor coil will be forced closed by the refrigerant flow thereby utilizing the outdoor expansion device The restrictor orifice used with the CA F CHPF and CH FCB coils will be forced onto a seat when running in the cooling cycle only allowing liquid refrigerant to pass through the orifice opening In the heating cycle
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89. O Tr ou J AAO uasaid F NO ou JHO Suasaid Te apoo poyo pur oq s qI 51748 21800861 oNUOS pesop 2 46 amssoud y3 y pue omssoid MOT e jou sey Jossaiduiod e yore san 5 51 so pKo ISV UN e Bessat dung WH Ye 8110205 PISUA py JON HOFWUOD e WOOT IAMAIS 10 TED JE SOULI9 e oq Aerdsip s qz 513935 orsouse Ip eppour onuoo 8 e sr puauop jesaurou e je SOULLIOY oures sou c amssoid MOT e jo0pjno pue Jossaiduo e epoopejeormur oq Av dsip s ay 51308 05008 0 309 st pue Jossaiduo e s ued 39 1109 aoe coy Tonuoo 01 OVA tc Sumo Aq paa oq neg punou oAnnoosuoo J nET medar Joud 440 Jamod um SUOTIIED 29 SHON popoou se oov dar 3ojroedvo 1 yay papaa se FUM PA se 42945 wp pue PI
90. OMPRESSOR BURNOUT When acompressor burns out high temperature develops causing the refrigerant oil and motor insulation to decom pose forming acids and sludge If a compressor is suspected of being burned out attach a refrigeranthosetothe liquid line dill valve and properly remove and dispose ofthe refrigerant NOTICE Violation of EPA regulations may result in fines or other penalties Now determine if a burn out has actually occurred Confirm by analyzing an oil sample using a Sporlan Acid Test Kit AK 3 its equivalent Remove the compressor and obtain an oil sample from the suction stub If the oil is not acidic either a burnout has not occurred or the burnout is so mild that a complete clean up is not necessary If acid level is unacceptable the system mustbe cleaned by using the clean up drier method CAUTION Do not allow the sludge or oil to contact the skin Severe burns may result NOTE The Flushing Method using R 11 refrigerant is no longer approved by Amana Brand Heating Cooling Suction Line Drier Clean Up Method The POE oils used with R410A refrigerant is an excellent solvent Inthe case of a burnout the POE oils will remove any burnout residue left in the system If not captured by the refrigerant filter they will collect in the compressor or other system components causing a failure of the replacement compressor and or spread contaminants throughout the system damagin
91. PRESSOR GROUND TEST 3 If a ground is indicated then carefully remove the com pressor terminal protective cover and inspect for loose leads or insulation breaks in the lead wires 4 Ifnovisual problems indicated carefully remove the leads at the compressor terminals WARNING Damage can occur to the glass embedded terminals if the leads are not properly removed This can result in terminal and hot oil discharging Carefully retest for ground directly between compressor terminals and ground 5 If ground is indicated replace the compressor S 17C UNLOADER TEST PROCEDURE A nominal 24 volt direct current coil activates the internal unloader solenoid The input control circuit voltage must be 18 to 28 volt ac The coil power requirement is 20 VA The external electrical connection is made with a molded plug assembly This plug contains a full wave rectifier to supply direct current to the unloader coil UNLOADER SOLENOID Molded Plug Unloader Test Procedure Ifitis suspected thatthe unloaderis not working the following methods may be used to verify operation 1 Operate the system and measure compressor current Cycle the unloader ON and OFF at 10 second intervals Thecompressor amperage should goupordown atleast 25 percent 2 If step one does not give the expected results shut unit off Apply 18 to 28 volt ac to the unloader molded plug leads and listen for a click as the solenoid pulls in Remove p
92. REVIEW ALL SERVICE INFORMATION IN THE APPROPRIATE SERVICE MANUAL BEFORE BEGINNING REPAIRS IMPORTANT NOTICES FOR CONSUMERS AND SERVICERS RECOGNIZE SAFETY SYMBOLS WORDS AND LABELS THIS UNIT SHOULD NOT BE CONNECTED TO OR USED IN CONJUNCTION WITH ANY DEVICES THAT ARE NOT DESIGN CERTIFIED FOR USE WITH THIS UNIT OR HAVE NOT BEEN TESTED AND APPROVED BY GOODMAN SERIOUS PROPERTY DAMAGE OR PERSONAL INJURY REDUCED UNIT PERFORMANCE AND OR HAZARDOUS CONDITIONS MAY RESULT FROM THE USE OF DEVICES THAT HAVE NOT BEEN APPROVED OR CERTIFED BY GOODMAN INSTALLATION AND REPAIR OF THIS UNIT SHOULD BE PERFORMED To PREVENT THE RISK OF PROPERTY DAMAGE PERSONAL INJURY OR DEATH PALY INDIVIDHAES MEETING THE REQUIREMENTS SF vA ENTRY DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER EA 22200 RI FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE ATTEMPTING TO INSTALL OR REPAIR THIS UNIT WITHOUT SUCH BACKGROUND MAY RESULT IN PRODUCT DAMAGE PERSONAL INJURY OR DEATH GOODMAN WILL NOT BE RESPONSIBLE FOR ANY INJURY OR PROPERTY DAMAGE ARISING FROM IMPROPER SERVICE OR SERVICE PROCEDURES IF YOU INSTALL OR PERFORM SERVICE ON THIS UNIT YOU ASSUME RESPONSIBILITY FOR ANY PERSONAL INJURY OR PROPERTY DAMAGE WHICH MAY RESULT MANY JURISDICTIONS REQUIRE A LICENSE TO INSTALL OR SERVICE HEATING AND AIR CONDITIONING EQUIPMENT HIGH VOLTAGE Hm DiscoNNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAI
93. SOLENOID Occasionally the reversing valve may stick in the heating or cooling position or in the mid position When stuck in the mid position part of the discharge gas from the compressor is directed back to the suction side resulting in excessively high suction pressure An increase in the suction line temperature through the reversing valve can also be measured Check operation of the valve by starting the system and switching the operation from COOL ING to HEATING cycle If the valve fails to change its position test the voltage 24V at the valve coil terminals while the system is on the COOLING cycle All heat pumps and ComfortNet heat pumps wired in legacy If no voltage is registered atthe coil terminals check the operation of the thermostat and the continuity of the connecting wiring from the O terminal of the thermostat to the unit ComfortNet heat pumps only Check voltage 24VAC at the non insulated terminal E22 onthe UC control board RVS on silkscreen and C terminal on the 7 pin or 4 pin connec tor on the UC control If voltage is registered at the coil tap the valve body lightly while switching the system from HEATING to COOLING etc Ifthisfailsto cause the valve to switch positions remove the coil connector cap and test the continuity of the reversing valve solenoid coil If the coil does not test continuous replace it If the coil test continuous and 24 volts is present at the coil terminals the v
94. Seer heat pump units Initial release of Amana Brand 14 SEER Heat Pump R410A Amana Brand Split Z heat pump 14 Seer heat pump units Introduces new ASZ140 1AB revisions have screw locations moved in the top panel base pans louvers and control box covers ASZ140 1 AC Amana Brand Split 2 R410A heat pump 14 Seer heat pump units New revisions have horizontal style louvers ASZ140181AD ASZ140 24 36 1AE Brand Split Z RA10A heat pump 14 Seer heat pump units Adds new steel ASZ14 42 48 1 AD muffler and suction tubes w shock loop ASZ140601AE ASZ160 1AA Amana Brand Split Z R410A heat pump 16 Seer heat pump units Initial release of Amana Brand 16 SEER Heat Pump Amana Brand Split Z R410A heat pump 16 Seer heat pump units Introduces new ASZ160 1AB revisions have screw locations moved in the top panel base pans louvers and control box covers ASZ160 1 AC Amana Brand Split Z R410A heat pump 16 Seer heat pump units New revisions have horizontal style louvers Amana Brand Split Z R410A heat pump 16 Seer heat pump units New revisions ASZ160 1AD added Muffler and standardized TXV Compensator using the ASZ18 Seer weldment ASZ160241AD Amana Brand Split Z R410A heat pump 16 Seer heat pump units Adds new steel ASZ160 36 60 AE muffler and suction tubes w shock loop 67180 1 Amana Brand Split Z R410A heat pump 18 Seer heat pump units Initial release of Amana Brand 18 SEER Heat Pump
95. Service Instructions SSX ASX GSX DSX ASXC DSXC Condensing Units SSZ ASZ GSZ DSZ ASZC DSZC VSX VSZ Split System Heat Pumps with R 410A Refrigerant Blowers Coils amp Accessories This manual is to be used by qualified professionally trained HVAC techni cians only Goodman does not assume any responsibility for property damage or personal injury due to improper service procedures or services RS6200006r20 performed by an unqualified person May 2010 Copyright 2006 2010 Goodman Manufacturing Company L P IMPORTANT INFORMATION IMPORTANT INFORMATION 2 3 TROUBLESHOOTING CHART 45 PRODUCT IDENTIFICATION 4 19 SERVICE TABLE OF CONTENTS 46 AGGESSORIES et e uen 20 36 SERVICING iiec trien 47 110 PRODUCT DESIGN reet oin taces 37 39 ACCESSORIES WIRING DIAGRAMS 111 118 SYS TEMOPERATION 4 eret 40 44 Pride and workmanship go into every product to provide customers with quality products It is possible however that during its lifetime a product may require service Products should be serviced only by a qualified service technician who is familiar with the safety procedures required in the repair and who is equipped with the proper tools parts testing instruments and the appropriate service manual
96. T DIAGNOSTICS 3 WIRE MODULE Applies to ASX ASZ and DSX DSZ units AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing this unit Multiple power sources may be present Failure to do so may cause property damage personal injury or death Comfort Alert is self contained with no required external sensors and is designed to install directly into the electrical box of any residential condensing unit that has a Copeland Scroll compressor inside Once attached Comfort Alert provides around the clock monitoring for common electrical problems compressor defects and broad system faults If a glitch is detected an LED indicator flashes the proper alert codes to help you quickly pinpoint the problem See Diagnostic Table 3 Wire Comfort Alert Module on previous page Bold line shows field installed wiring Dashed line shows thermostat demand wiring in system without HTCO HPCO CPCO and ECB Comfort Alert Diagnostics Module Schematic Abbreviation Descriptions Compressor Contactor Electronic Control Board Defrost or Time Delay High Temperature Cut Out Switch High Pressure Cut Out Switch LPCO Low Pressure Cut Out Switch Wiring Schematic 3 Wire Comfort Alert Module Green power LED indicates voltage is present at the power connection of the module Yellow alert LED flashes to indicate fault code Red trip LED
97. TOR RESISTANCE 2 Set an ohmmeter on its highest ohm scale and connect the leads to the capacitor A Good Condition indicator swings to zero and slowly returns to infinity Start capacitor with bleed resistor will not return to infinity It will still read the resistance of the resistor B Shorted indicator swings to zero and stops there replace C Open no reading replace Start capacitor would read resistor resistance S 15B CAPACITANCE CHECK Using a hookup as shown below take the amperage and voltage readings and use them in the formula Capacitance MFD 2650 X Amperage Voltage AX WARNING Discharge capacitor through a 20 to 30 OHM resistor before handling VOLTMETER TESTING CAPACITANCE 67 SERVICING S 16A CHECKING FAN AND BLOWER MOTOR WINDINGS PSC MOTORS The auto reset fan motor overload is designed to protect the motor against high temperature and high amperage condi tions by breaking the common circuit within the motor similar to the compressor internal overload However heat gener ated within the motor is faster to dissipate than the compres sor allow at least 45 minutes for the overload to reset then retest AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Remove the motor leads f
98. Voltage should measure 24VAC Replace control if no voltage is present NOTE Allow for any built in time delays before making voltage measurements Any electric heater faults that are present may prevent the heater output from energizing Verify that no heater faults are present before making voltage measurements 4 Provide athermostat demand for high stage auxiliary heat 1 W2 Measure the voltage between circuits 1 and 3 at the on board electric heat connector Measure the voltage between circuits 2 and 3 at the on board electric heat connector Voltage should measure 24VAC Re SERVICING place control if no voltage is present Communications Applies only to Systems with Compatible ComfortNet Outdoor Unit and Thermostat The integrated air handler control has some on board tools that may be usedto troubleshoot the network These tools are red communications LED green receive Rx LED and learn button These are described below a Red communications LED Indicates the status of the network Refertothe Network Troubleshooting Chartfor the LED status andthe corresponding potential problem b Green receive LED Indicates networktraffic Referto the Network Troubleshooting Chartforthe LED status andthe corresponding potential problem Learn button Used to reset the network Depress the button for approximately 2 seconds to reset the network Voltages betweenthe two data lines and between ea
99. a number of LED flashes followed by a pause and then repeated TRIP ALERT LEDs flashing at same time means control circuit voltage is too low for operation Last ALERT Flash code is displayed for 1 minute after module is powered on 58 SERVICING CHECKING RELAY CONTACTS ECM FAN MOTOR AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect the motor leads from 6 circuit fan motor wire harness 2 Connect a voltmeter between circuit 6 and circuits 3 low speed or 1 high speed NOTE Circuit 6 is connected directly to 24VAC 3 Energize the system at low or high stage WARNING Line Voltage now present 4 The measured voltage between circuit 6 and circuits 3 or 1 should be approximately OVAC which indicates the relay contacts are closed A voltage measurement of approximately 24VAC indicates the relay is open Re place the control if the relay checks open when it should be closed See notes and cautions below 5 Circuit 5 is connectedto 24VAC common The measured voltage between circuits 6 and 5 should be 24VAC NOTE Ensure any ON delays have expired before making voltage measurements CAUTION Prolonged operation with the condenser fan motor disconnected will cause the high pressure switch to trip S 10 COPELAND COMFORT ALER
100. a voltmeter check for 230 volts to the motor connections L and N If 230 volts is present proceed to step 2 If 230 volts is not present check the line voltage circuit to the motor 2 Using a voltmeter check for 24 volts from terminal C to either terminal 1 2 3 4 or 5 depending on which tap is being used at the motor If voltage present proceed tostep 3 If no voltage check 24 volt circuit to motor 3 If voltage was present in steps 1 and 2 the motor has failed and will need to be replaced Note When replacing motor ensure the belly band is between the vents on the motor and the wiring has the proper drip loop to prevent condensate from entering the motor GE X13 MOTOR CONNECTIONS 73 SERVICING S 16G CHECKING EMERSON ULTRATECH ECM MOTORS DESCRIPTION The AVPTC and MBVC models utilize an Emerson 4 wire variable speed ECM blower motor The ECM blower motor provides constant CFM The motoris a serially communicating variable speed motor Only four wires are required to control the motor Vdc Common Receive and Transmit The Vdc and Common wires provide power to the motor s low voltage control circuits Typical supply voltage is 9 15 volts DC GENERAL CHECKS CONSIDERATIONS 1 Check power supply to the air handler or modular blower Ensure power supply is within the range specified on rating plate See section S 1 2 Check motor power harness Ensure wires are continu ous and make good con
101. actors compressor staging controls short cycle con trols line voltage monitors Comfort Alert Module two speed condenser fan relays and the Active Protection component of enabled thermostats The control is designed to work as part of a fully communicating HVAC system with 4 wires The control also supports legacy 24VAC thermostat inputs for Y1 Y2 O and 24VAC outputs for RVS W1 and L for non communicating systems Outputs include compressor power compressor stage select and outdoor fan high and outdoor fan low speed System inputs include high low pressure Switches as well as thermistor inputs for outdoor coil temperature and outdoor air temperature 37 PRODUCT DESIGN The ASX amp ASXC 16 amp 18 ASZ amp ASZC 16 amp 18 DSX amp DSXC 16 amp 18 and DSZ amp DSZC 16 amp 18 series split system units use a two stage scroll compressor The two step modulator has an internal unloading mechanism that opens a bypass port in the first compression pocket effec tively reducing the displacement of the scroll The opening and closing of the bypass port is controlled by an internal electrically operated solenoid Modulation Ring amp Bypass Seals Solenoid Coil Assembly The ZPS ZRS two step modulated scroll uses a single step of unloading to go from full capacity to approximately 67 capacity A single speed high efficiency motor continues to run while the scroll modulates between the two capacity steps
102. ading 3 Check subcooling and superheat Systems with TXV application should have a subcooling of 5 to 7 F and superheat of 7 to 9 F a Ifsubcooling and superheatare low adjust TXV to 7 to 9 F superheat then check subcooling NOTE To adjust superheat turn the valve stem clockwise to increase and counter clockwise to decrease b dfsubcooling is low and superheat is high add charge to raise subcooling to 5 to 7 F then check superheat c dfsubcooling and superheat are high adjust TXV valve to 7 to 9 F superheat then check subcool ing d If subcooling is high and superheat is low adjust TXV valve to 7 to 9 F superheat and remove charge to lower the subcooling to 5 to 7 F NOTE Do NOT adjust the charge based on suction pressure unless there is a gross undercharge 4 Disconnect manifold set installation is complete Subcooling Formula Sat Liquid Temp Liquid Line Temp SERVICING S 110 CHECKING EXPANSION VALVE OPERATION Remove the remote bulb of the expansion valve from the suction line D Start the system and cool the bulb in a container of ice water closing the valve As youcoolthe bulb the suction pressure shouldfall andthe suction temperature will rise 3 Next warm the bulb in your hand As you warm the bulb the suction pressure should rise and the suction tempera ture will fall 4 1 a temperature or pressure change is noticed the expansion valveis operating I
103. ady Models Only 81 5 40 MBR ARUF Electronic Blower Time Delay with Single Stage Air Conditioners amp Heat Pumps 81 5 40 AVPTC and MBVC Electronic Blower and Heater Control 82 5 50 Checking Heater Limit Control S 96 5 52 Checking Heater Elements 96 5 60 Electric Heater optional item 96 S 61A Checking Heater Limit Control S 97 S 61B Checking Heater Fuse Line 97 S 100 Refrigeration Repair Practice 97 SA01 Leak Testing ocrais 98 5S 102 EVACUATION err teret ertt EE ens 98 5 103 Charging 99 5 104 Checking Compressor Efficiency 100 S 105A Piston Chart ASX13 GSX13 SSX14 VSX13 ASX14 5713 GSZ13 VSZ13 Units 100 5 105 Thermostatic Expansion Valve 101 106 Overfeeding esses 101 107 Underfeeding 101 9 108 tet 101 5 109 Checking Subcooling 104 5 109 Two Speed Application 104 5 110 Checking Expansion Valve Operation 105 S 111 Fixed Orifice Restriction Devices 105 5 112 Checking Restricted Liquid 105 5 113 Ref
104. air handler control The integrated AH control immediately de energizes the ECM blower motor AVPTC MBVC with Single Stage Heat Pumps 24VAC Legacy Wired Systems 1 0 Cooling Operation 1 1 On a demand for single stage cooling operation the thermostat closes the and Y contacts provid ing 24VAC to the G Y1 Y2 terminals atthe integrated air handler control The integrated AH control initiates the selected cooling ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control oper ates the variavble speed ECM motor at the demanded airflow 1 2 The compressor and condensor fan motor is energized SERVICING by the closing of the thermostat Y contacts The reveersing valve is energized by the closing of the thermostat O contacts 1 3 The system operates at single stage cooling 1 4 Upon satisfying the thermostat the and Y thermostat contacts open removing 24VAC from the both the outdoor condensor and integrated air handler control The compressor condensor fan motor and reversing valve are de energized immediately The inte grated AH control continues to operate the ECM blower motorforan OFF delay period then applies the off portion ofthe selected ramping profile The ECM blower motor is then de energized 2 0 Heating Operation 2 1 Onademandfor heat pump heating the room thermostat closes the G and Y con
105. alve is inoperative replace it S 24 TESTING DEFROST CONTROL LEGACY MODELS Tocheck the defrost control for proper sequencing proceed SERVICING as follows With power ON unit not running 1 Jumper defrost thermostat by placing a jumper wire across the terminals DFT and at defrost control board 2 Connectjumper across test pins on defrost control board 3 Set thermostat to call for heating System should go into defrost within 21 seconds 4 Immediately remove jumper from test pins 5 Using VOM check for voltage across terminals amp Meter should read 24 volts 6 Using VOM check for voltage across fan terminals DF1 and DF2 onthe board You should read line voltage 208 230 VAC indicating the relay is open in the defrost mode 7 Using VOM check for voltage across W2 amp C terminals on the board You should read 24 volts 8 If not as above replace control board 9 Set thermostat to off position and disconnect power before removing any jumpers or wires NOTE Remove jumper across defrost thermostat before returning system to service COMFORTNET UNITS Tocheckthe defrost control for proper sequencing proceed as follows With power ON unit not running 1 Set thermostat to call for heating 2 Press TEST and RECALL buttons simultaneously for approximately 3 seconds then release them System should go into defrost immediately 3 Using VOM check for voltage across terminal
106. and after a 7 second on delay the relay on the EBTDR board is energized and the blower motor starts 3 3 When the cooling demandis satisfied the room thermo stat removes the 24Vac from G and Y 3 4 The heat pump is turned off and after a 65 second delay off the relay onthe EBTDR 5 de energized and the blower motor is turned off 4 0 Heating Operation On heat pump units when the room thermostat set to the heating mode the reversing valve is not energized As long as the thermostatis set for heating the reversing valve will be in the de energized position for heating except during a defrost cycle Some installations may use one or more outdoor thermostats to restrict the amount of electric heat thatis available above apreset ambienttemperature Use of optional controls such as these can change the operation of the electric heaters during the heating mode This sequenceof operation does not cover those applications 4 1 On a demand for first stage heat with heat pump units the room thermostat energizes and Y and 24Vacis supplied to Y at the heat pump unit and G terminal onthe EBTDR board The heat pump is turned on in the heating mode and the blower motor starts after a 7 second on delay 4 2 If the first stage heat demand cannot be satisfied by the heat pump thetemperature indoors will continue to drop The roomthermostat will then energize terminal W2 for second stage heat and
107. blower with variable speed blower motor with the MBVC2000AA 1AA new communicating control amp serial communicating indoor blower motor 12 PRODUCT IDENTIFICATION Evaporator Coils FUE C Indoor Coil A Upflow Downflow Uncased Flowrator Introduces 13 SEER CAUF Dayton CAUF 6AA Upflow Downflow coils CAUF 6BA C Indoor Coil A Upflow Downflow Uncased Flowrator Revision releases Burr Oak Louvered Fin in place of the Wavy Fin currently in production C Indoor Coil Upflow Downflow Painted Flowrator Introduces 13 SEER Dayton CAPF 6AA Upflow Downflow coils mm C Indoor Coil A Upflow Downflow Painted Flowrator Revision releases Burr Oak Louvered Fin CAPF 6BA in place of the Wavy Fin currently in production C Indoor Coil A Upflow Downflow Painted or Uncased Flowrator Revision redesigns for CAPF CAUF36 CA performance improvement from 2 row to 3 row CAPF36 6DA C Indoor Coil Upflow Downflow Painted or Uncased Elowrator Revision replaces existing CAPF48 6DA copper coils and other associated parts with aluminum components CHPF 6AA C Indoor Coil Horizontal A Coil Painted Flowrator Release 13 SEER CHPF horizontal A coil C Indoor Coil Horizontal A Coil Painted Flowrator Release 13 SEER CHPF horizontal A coil CHPF 6BA Revision releases Burr Oak Louvered Fin in place of the Wavy Fin currently in production The rows change by one i e 4 row to 3 row 3 row to 2 row
108. both heating and cooling mode for proper charge level This guideline is meant to provide installation instructions based on most common long line set applications Installation variables may affect system operation NO ADDITIONAL COMPRESSOR OIL IS NEEDED FOR LONGLINE SET APPLICATIONS ON RESIDENTIAL SPLIT SYSTEMS 5 202 DUCT STATIC PRESSURES AND OR STATIC PRESSURE DROP ACROSS COILS This minimum and maximum allowable duct static pressure for the indoor sections are found in the specifications section Tables are also provided for each coil listing quantity of air CFM versus static pressure drop across the coil Too great an external static pressure will result in insufficient air that can cause icing of the coil Too much air can cause poor humidity control and condensate to be pulled off the evaporator coil causing condensate leakage Too much air can also cause motor overloading and in many cases this constitutes a poorly designed system 5 203 AIR HANDLER EXTERNAL STATIC To determine proper air movement proceed as follows 1 Using a draft gauge inclined manometer measure the static pressure of the return duct at the inlet of the unit Negative Pressure 2 Measure the static pressure of the supply duct Positive Pressure 3 Add the two readings together TOTAL EXTERNAL STATIC NOTE Both readings may be taken simultaneously andread directly on the manometer if so desired 4 Consult proper table for quan
109. bricants like 3GS POE oil must be used if additional oil is required Compliantscroll compressors perform quiet shutdowns that allow the compressor to restart immediately without the need for a time delay This compressor will restart even if the system has not equalized NOTE Operating pressures and amp draws may differ from standard reciprocating compressors This informa tion can be found in the unit s Technical Information Manual PRODUCT DESIGN CAPACITY CONTROL LEGACY MODELS During the compression process there are several pockets within the scroll that are compressing gas Modulation is achieved by venting a portion of the gas in the first suction pocket back to the low side of the compressor thereby reducing the effective displacement of the compressor See Figure A Full capacity is achieved by blocking these vents increasing the displacement to 100 A solenoid in the compressor controlled by an external 24 volt ac signal moves the slider ring that covers and uncovers these vents The vent covers are arranged in such a manner that the compressor operates somewhere around 67 capacity when the solenoid is not energized and 100 capacity when the solenoid is energized The loading and unloading of the two step scroll is done on the fly without shutting off the motor between steps See Figure B below The unloaded mode default was chosen for two reasons Molded Plug w EPEE o a ____ Line c 0
110. capacitors are bulging or swollen 7 Locate the 3 circuit connector in the control end bell Using an ohmmeter check the resistance between each terminal in the connector If the resistance is 100kW or greater the control end bell is functioning properly Re place the control end bell if the resistance is lower than 100kW 8 Reassemble motor and control end bell in reverse of disassembly Replace blower assembly into air handler or modular blower Motor Checks AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect power to air handler or modular blower NOTE Motor contains capacitors that can hold a charge for several minutes after disconnecting power Wait 5 minutes after removing power to allow capacitors to discharge 2 Disassemble motor as described in steps 2 through 4 above 3 Locate the 3 circuit harness from the motor Using an ohmmeter measure the resistance between each motor phase winding The resistance levels should be equal Replace the motor if the resistance levels are unequal open circuited or short circuited 4 Measure the resistance between each motor phase winding and the motor shell Replace the motor if any phase winding is short circuited to the motor shell 5 Reassemble motor and control end bell in reverse of disas
111. ce refrigerant migration to the condenser during a system s Fig 7 Oil Trap Placement off cycle 2 Forasysteminstallation where evaporator is above the condenser an inverted vapor line trap should be installed on the suction line just before the inlet to the evaporator see Fig 6 The top of the inverted loop must be slightly above the top of the evaporator coil and can be created simply by brazing two 90 long radius elbows together if a bending tool is unavailable Properly support and secure the inverted loop to the nearest point on the indoor unit or adjacent structure Oil Trap Construction Long Radius Street Ell Short Radius Street Ell Fig 8 Oil Trap 4 Low voltage wiring Verify low voltage wiring size is Fig 6 Evaporator unit with inverted vapor loop adequate for the length used since it will be increased in along line application 3 An oil trap is required at the evaporator if the condenser is above the evaporator Depending on Initial System Charging the vertical rise ofthe line set oil traps are required in the suction line Oil traps should be installed at evaporator R 410A condensers factory charged for 15 feet set in the suction line Install one oil trap for a height calculate the amount of extra refrigerant in ounces difference of more than 15 feet between indoor and needed for aline setover 15 feet multiply the additional length outdoor units Preformed oil traps ar
112. ch data line and common may be used to determine if the network is operating properly Do the following to measure the voltages on the communi cations data lines a WARNING YI Line Voltage now present 1 With power on to the unit measure voltage between terminal 1 and terminal C on control board s thermo stat connector Voltage should be as noted in the table below 2 Measure voltage between terminals 2 and C 3 Measure voltage between terminals 1 and 2 4 f voltages are different than stated in the table below check thermostat wiring for opens shorts Confirm that the BIAS and TERM dipswitches are in the ON position 5 The network troubleshooting chart on the next page provides additonal communications troubleshooting in formation Nonimal Terminals Voltages 2106 1102 lt 2 5 gt 0 2 gt 2 5 Vac SEQUENCE OPERATION This document covers the basic sequence of operation fora typical application with a mercury bulb thermostat Whena digital electronic thermostatis used the on off staging of the auxiliary heat will vary Refer to the installation instruc tions and wiring diagrams provided with the MBR AR F for specific wiring connections and system configura tion MBR AR F WITH SINGLE STAGE CONDENSERS 1 0 Cooling Operation 1 1 Onademandforcooling the room thermostat energizes and Y and 24Vac is supplied to Y at the con
113. creen Some parameters being displayed switch between the item name andthe item value Touchthe Hold key to momentarily stop the display from switching To exit an equipment submenu and revert back to the equipment menus touch the Menu key Touch Menu again to revert back to the Thermostat Options Menu Touch the Run Schedule key to step out of all menus and back to the CT thermostat Home Screen Display SERVICING ano MBVC ApvaNcED User Menus CONFIGURATION Indication for Display Only not User Modifiable Electric Heat Size HTR KW Displays the size in kW of the selected electric heaters Motor HP 1 2 3 4 or 1 MTR HP Displays the indoor blower motor horsepower Heat ON Delay HT ON Displays the electric heat indoor blower ON delay Heat OFF Delay HT OFF Displays the electric heat indoor blower OFF delay DIAGNOSTICS Indication User Modifiable Options Comments Fault 1 FAULT 1 Fault 2 FAULT 2 Fault 3 FAULT 3 Fault 4 FAULT 4 Most recent fault ext most recent fault ext most recent fault ext most recent fault Fault 5 FAULT 5 ext most recent fault For display only Fault 6 FAULT 6 Least recent fault For display only Clear Fault History CLEAR NO or YES Selecting YES clears the fault history 2 For display only For display only or display only For display only _ J NOTE Consecutively repeated faults are shown a maximum of 3 times IDENTIFICATION M
114. ctrical Checks Low Voltage Control Circuits 1 Turn on power to air handler or modular WARNING YI Line Voltage now present 2 Check voltage between pins 1 and 4 on the 4 wire motor control harness between the motor and control board Voltage should be between 9 and 15 VDC 3 Ifno voltage is present check control board See section S 40A Motor Control End Bell Checks AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect power to air handler or modular blower NOTE Motor contains capacitors that can hold a charge for several minutes after disconnecting power Wait 5 minutes after removing power to allow capacitors to discharge 2 Disconnect the motor control harness and motor power harness 3 Remove the blower assembly from the air handler or modular blower 4 Remove the 3 screws securing the control end bell to the motor Separate the control end bell Disconnect the 3 circuit harness from the control end bell to remove the control end bell from the motor 5 Inspect the NTC thermistor inside the control end bell see figure below Replace control end bell if thermistor is cracked or broken SERVICING 6 Inspect the large capacitors inside the control end bell see figure below Replace the control end bell if any of the
115. d Y1 The MBE AEPF removes the 24Vac from Ylow YT atthe condenser and the compressor and condenser fan are turned off The blower motor will ramp downto complete stop based on the time and rate programmed in the motor 2 0 Heating Operation 2 1 On a demand for heat the room thermostat energizes W1 and 24Vac is supplied to terminal E W1 of the VSTB inside the MBE AEPF unit The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings for dip switch 1 and 2 The VSTB will supply 24Vac to heat sequencer 1 on the electric heater assembly 2 2 HR1 contacts M1 and M2 will close within 10 to 20 seconds and turn on heater element 1 At the same time if the heater assembly contains a second heater element HR1 will contain a second set of contacts M3 and M4 which will close and turn on heater element 2 Note If more than two heater elements are on the heater assembly it will contain a second heat sequencer HR2 which will control the 3 and 4 heater elements if available For the 3 and 4 heater elements to operate on 88 second stage heat demand the PJ4 jumper on the VSTB inside the MBE AEPF must be cut With the PJ4 jumper cut the VSTB will run the blower motor on low speed ona W1 only demand Ifthe first stage heat demand W1 cannot be satisfied by the heat pump the temperature indoors will continue to drop The room thermostat will the
116. d as long as the thermostat subbase is in the cooling position The only exception to this is during defrost For heat pumps during cooling cycle the reversing valve is energized as the room thermostat closes terminal to R and the microprocessor on the UC board responds to sucha condition by energizing the solenoid coil on the reversing valve For communicating room thermostat When the room ther mostat calls for either low stage cool or high stage cool appropriate commands are sent via the data 1 and data 2 lines tothe outdoorunit s UC control The UC control energizes the on board compressor relay and the on board outdoor fan relay The compressor high stage solenoid is energized if it is a high stage call The UC control sends a fan command to the indoor unit air handler or furnace The indoor unit operates the indoor blower at the appropriate airflow level The system operates at the cooling level demanded by the thermostat SYSTEM OPERATION When the thermostatis satisfied appropriate commands are sent to the UC control The compressor relay and outdoor fan relay is de energized The compressor high stage solenoid is de energized if it was energized The UC control sends an appropriate command to the indoor unit to de energize the indoor blower motor If room thermostat fan status is set to be on then indoor blower would run continuously rather than cycling with the compressor For heat pumps the reversi
117. d to HR2 on the heater assembly When the W2 demand is satisfied the room thermostat will remove the 24Vac from HR2 Thecontacts on HR2 will open between 30 to 70 seconds and heater elements 3 and 4 will be turned off On most digital electronic thermostats W2 will remain energized until the first stage demand W1 is satisfied and then the W1 and W2 demands will be removed 2 3 When the W1 heat demand is satisfied the room thermostat will remove the 24Vac from HR1 Both set of contacts on the relay opens within 30 to 70 seconds and turn off the heater element s and the blower motor MBR AR F WITH SINGLE STAGE HEAT PUMPS 3 0 Cooling Operation On heat pump units when the room thermostat set to the cooling mode 24Vac is supplied to which energizes the reversing valve Aslong asthe thermostatis set for cooling thereversing valve will be inthe energized position for cooling 3 1 On ademand for cooling the room thermostat energizes G and Y and 24Vacis supplied to Y at the heat pump and the G terminal on the EBTDR board 83 SERVICING NETWORK TROUBLESHOOTING CHART Causes Action s Cautions Red Communications LED 1 Flash Communication Failure 2 Flashes Out of box reset Off No power Communication error Green Receive LED 1 Steady Flash No network found Normalnetwork traffic Rapid Flashing Data 1 Data 2 miss wire Communication F ai
118. ded the outdoor control de energizes the condensor fan motor and energizes the reversing valve A W1 signal is sent from the outdoor unit control to the integrated air handler control 4 2 The air handler control energizes the eletric heat se quencer output to turn on the electric heaters The appropriate airflow demand is provided to the motor greater of heat pump or auxiliary heat 4 3 At the conclusion of the defrost cycle the outdoor unit control removes the W1 output to the integrated air handler control de energizes the reversing valve and re energizes the condensor fan motor 5 0 Emergency Heat Operation 5 1 Onademandfor emergency heatoperation the thermo stat closes the W1 W2 contacts providing 24VAC to the W1 terminal at the integrated air handler control The integrated AH control initiates the heating ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control operates the variavble speed ECM motor at the emergency heat airflow 5 2 The system operates at emergency heat 5 3 Upon satisfying the thermostat emergnecy heat de mand the W1 thermostat contacts open removing 24VAC from the integrated air handler control The integrated AH control continues to operate the ECM blower motorfor an OFF delay period then applies the off portion of the heating ramping profile The ECM blower motor is then de energized AVPTC MBVC with ASXC DSXC Con
119. demand is set from the thermostat as low medium or high 3 2 Ifthe thermostat demand for continuous fanis removed the thermostat commands the integrated air handler control to end continuous fan operation The integrated AH control immediately de energizes the ECM blower motor 4 0 Defrost Operation 4 1 While the system is operating in heat pump heating see 2 0 Heating Operation the control in the outdoor unit may determines that a defrost cycle is needed Upon determing that a defrost cycle is needed the UC control de energizes the condensor fan motor and energizes the reversing valve 4 2 The compressor may be de energized for a short delay during the reversing valve shift The delay period is 95 SERVICING S 50 CHECKING HEATER LIMIT CONTROL S OPTIONAL ELECTRIC HEATERS Each individual heater element is protected with an auto matic rest limit control connected in series with each elementto prevent overheating of components in case of low airflow This limit control will open its circuit at approximately 150 F to 160 F and close at approximately 110 F WARNING 5 1 Disconnect ALL power before servicing 1 Remove the wiring from the control terminals 2 Using an ohmmeter test for continuity across the nor mally closed contacts No reading indicates the control is open replace if necessary Make sure the limits are cool before testing IF FOUND OPEN REPLACE DO NOT WIRE AROUND
120. dens ing unit and the terminal on the EBTDR board 1 2 The compressor and condenser fan are turned on and after a 7 second on delay the relay on the EBTDR board is energized and the blower motor starts 1 3 When the cooling demand Y is satisfied the room thermostat removes the 24Vac from G and Y 1 4 The compressor and condenser fan are turned off and after a65 second delay off the relay onthe EBTDR board is de energized and the blower is turned off 2 0 Heating Operation 2 1 On a demand for heat the room thermostat energizes W1 and 24Vac is supplied to heat sequencer HR1 on the heater assembly 2 2 The contacts M1 and 2 will close within 10 to 20 seconds and turn on heater element 1 The normally closed contacts on the EBTDR are also connected to terminal M1 When M1 and M2 close the blower motor willbe energized thru the normally closed contacts onthe EBTDR board Atthe same time if the heater assembly contains a second heater element HR1 will contain a second set of contacts M3 and M4 which will close to turn on heater element 2 If more than two heater elements are on the heater assembly it will contain a second heat sequencer HR2 which will control the 3 and 4 heater elements if available If the first stage heat demand W1 cannotbe satisfied by the heat pump the temperature indoors will continue to drop The room thermostat will then energize W2 and 24Vac will be supplie
121. denser and CTK01AA Communicating Themosiat The AVPTC or MBVC air handle modular blower matched with an ASXC or DSXC condensing unit and CTKO1AA communicating thermostat constitute a network The three components or subsystems making up the system commu nicate with one another with information passed between all three components This leads to asomewhat non traditional manner in which the system components receive commands forsystem operation All system commands are routed from the componentthrough the networkto the appropriate desti nation component NOTE Theindividual subsystems will cease operation ifthe request for operation is NOT refreshed after 5 minutes This is a built in safe guard to prevent the possibility of runaway operation 1 0 Cooling Operation Low and High Stage Cool 1 1 The CTK01AA thermostat sends a requestfor low stage cooling through the networkto the unitary UC controlin the condenser The UC control receives the command and processes any compressor and fan delays 1 2 The UC control sends a request for low stage fan speed tothe air handler modularblower Theblower energizes the ECM blower motor at the appropriate speed 1 3 The condenser energizes the compressor and con denser fan motor at the appropriate low stage speeds 1 4 The system operates at low stage cooling 1 5 If the thermostat demand cannot be met on low stage cooling the thermostat sends a request for high stage coolin
122. designed for 208 230 volt single phase applications ASXC ASZC DSXC DSZC R 410A model units use the Copeland Scroll Ultratech Series compressors which are specifically designed for R 410A refrigerant These units also have Copeland ComfortAlert diagnostics The Copeland ComfortAlert diagnostics are integrated into the unitary UC control These models are ComfortNet ready There are a number of design characteristics which are different from the traditional reciprocating and or scroll com pressors Ultractech Series scroll compressors will not have a dis charge thermostat Some ofthe early model scroll compres sors required discharge thermostat Ultratech Series scroll compressors use POE or polyolester oil which is NOT compatible with mineral oil based lubricants like 3GS POE oil must be used if additional oil is required COILS AND BLOWER COILS LEGACY MODELS MBR MBE MBVC blower cabinets are designed to be used as a two piece blower and coil combination MBR MBE MBVC blower sections can be attached to cased evaporator coil This two piece arrangement allows for a variety of mix matching possibilities providing greater flexibility The MBE MBVC blower cabinets use a variable speed motor that maintains a constant airflow with a higher duct static MBE MBVC blower cabinests are approved for applications with cooling coils of up to 0 8 inches W C external static pressure The MBE models includes a feature that
123. dipswitch settings on the UC PCB Inacommunicating system the defrosttiming periods can also be selected in the communicating thermostat user menu During operation the microprocessor onthe UC checks coil temperature via the OCT sensor every 30 60 90 or 120 minutes when there is a call for heating If by the time the microprocessor checks the coil temperature and it s low enough approximately 31 F and if there is call for heat from the thermostat the PCB will initiate a defrost When the microprocessor detects the coil temperature to be high enough approximately 75 F or 10 minutes of maximum defrost cycle time has elapsed whichever occurs first the defrost cycle is terminated and the timing period is reset The field service personnel can also advance a heat pump to the defrost cycle by simultaneously pressing the TEST button and the RECALL button on the UC board HEATING CYCLE Thereversing valve onthe GSZ SSZ ASZ and DSZ models is energized in the cooling cycle through the O terminal on the room thermostat These models have a 24 volt reversing valve coil When the thermostat selector switch is set in the cooling position the O terminal on the thermostat is energized all the time Care must be taken when selecting a room thermostat Refer to the installation instructions shipped with the product for approved thermostats HEATING CYCLE For legacy room thermostat When the room thermostat calls f
124. e W2 terminal at theintegrated AH control Thermostat W1 contacts remain closed 2 4 The system operates on high stage auxiliary heat 2 5 Upon receiving the high stage auxiliary heat demand the control operates the ECM blower motor atthe high stage auxiliary heatairflow 2 6 Upon satisfying the thermostat the W1 thermostat contacts or W1 and W2 contacts open removing 24VAC from the integrated air handler control and out door unit The compressor and condensor fan motor are immediately de enerized The integrated AH control continues to operate the ECM blower motor for an OFF delay period then applies the off portion of the heating ramping profile The ECM blower motor is then de energized 3 0 Continuous Fan Operation 3 1 Onademand for continuous fan operation the thermo stat closes the contacts providing 24VAC to the terminal at the integrated air handler control The control energizesthe variavble speed ECM motor at 30 ofthe air handler s maximum airflow capability 3 2 Removing the thermostat demand for continuous fan opens the G contacts removing 24VAC from the integrated air handler control The integrated AH control immediately de energizes the ECM blower motor AVPTC MBVC with 2 Stage Heat Pumps 24VAC Legacy Wired Systems 1 0 Cooling Operation 1 1 On a demand for low stage cooling operation the thermostat closes the G O and Y1 contacts providing 24VAC to the and Y
125. e column underthe design subcooling value Where the two intersect is the required liquid line temperature Alternately you can convertthe liquidline pressure gauge reading to temperature by finding the gauge reading in Temperature Pressure Chart and reading to the left find the temperature in the F Column 104 6 The difference between the thermometer reading and pressure to temperature conversion is the amount of subcooling Add charge to raise subcooling Recover charge to lower subcooling Subcooling Formula z Sat Liquid Temp Liquid Line Temp EXAMPLE a Liquid Line Pressure 417 b Corresponding Temp F 120 c Thermometer on Liquid line 109 To obtain the amount of subcooling subtract 1099 from 120 F The difference is 11 subcooling See the specification sheet or technical information manual for the design subcooling range for your unit S 109A TWO SPEED APPLICATION Run the remote on low stage cooling for 10 minutes until refrigerant pressures stabilize Follow the guidelines and methods below to check unit operation and ensure that the refrigerant charge is within limits Charge the unit on low stage 1 Purge gauge lines Connect service gauge manifold to base valve service ports Runsystem atleast 10 minutes to allow pressure to stabilize 2 Temporarily install thermometer on liquid small line near liquid line service valve with adequate contact and insulate for best possible re
126. e Advanced In staller Configuration menu A Set Time Set Run Upon entering the advanced menus the Advanced Fault Menu is displayed The display will change to the Fault Screen and indicate any faults that may be present in the indoor or outdoor equipment If a fault is present the Fault Screen will show the equipment and an error code with a description ofthe fault Touch Xl gt keys to view the fault status of any remaining equipment Thetext NO FAULTS will be scrolled if no errors are present FH PH m Pig A A 68 Gy BB FAUL v Advanced Advanced Touch or 57 to step through the list of installed equipment including the thermostat Touch the Installer Config key to enter the submenus for the equipment displayed The text WORKING will be displayed in the scrolling display area while the data is being retrieved The first sub menu is then displayed See tables below for listing of modular blower submenus Touch the A or to step through the list of submenus and view settings If a setting can be adjusted lt ana gt keys will appear Use the Sor P keys to adjust the setting to the desired value Touch the A or 57 to step to the next 50 item WORKING will appear as the settings are being updated DONE will appear to indicate the change was accepted If the change is not accepted the display will show FAIL then revert to the Fault S
127. e available atmost of line set by 0 6 ounces Note for the formula below the linear HVAC supply houses or oil traps may be created feet ofline setis the actual length of liquid line or suction line brazing tubing elbows together see diagram below since both should be equal used not the equivalent length Remember to add the equivalentlength from oiltrapsto calculated for the suction line the equivalent length calculation of the suction line For example if you construct an oil trap using two 45 elbows one short and one long 90 elbow in a 34 diameter suction line the additional equivalent length would be 0 7 0 7 1 7 1 5 which equals 4 6 feet refer to Table 5 108 SERVICING Use subcooling as the primary method for final system charging of long line set system application Extra refrigerant needed Linear feet of line set 15 ft x X oz ft Where X 0 6 for 3 8 liquid tubing Remember 3 8 liquid tubing is required for all long line set applications Heat pumps should be checked in both heating and cooling mode for proper charge level This guideline is meant to provide installation instructions based on most common long line setapplications Installation variables may affect system operation Followthe charging procedures in the outdoor unit I O manual to ensure proper superheat and sub cooling levels especially on a system with a TXV installed in the indoor unit Heat pumps should be checked in
128. e bundle marked Ther mostat andthe yellow wire labeled Y Y2 inside the wire bundle marked Outdoor Unit must be connected to Y Y2 at the heat pump The orange jumper wire from terminal 1 to terminal on the VSTB inside the MBE AEPF must be removed On heat pump units when the room thermostat is set to the cooling mode 24Vacis suppliedto terminal ofthe VSTB inside the MBE unit The VSTB will supply 24Vac to atthe heat pump to energize the reversing valve As long as the thermostatis set for cooling the reversing valve will be in the energized position for cooling 3 1 On ademand for cooling the room thermostat energizes and Y1 and 24Vacis supplied to and Ylow Y1 of the MBE unit The VSTB inside the MBE will turn on the blower motor andthe motor will ramp up to 60 of the speed programmedin the motor based on the settings for dip switch 5 and 6 The VSTB will supply 24Vac to Y at the heat pump and the compressor and outdoor fan starts in low speed operation SERVICING 3 2 Iffirststage cooling cannot satisfy the demand the room thermostat will energize Y2 and supply 24Vac to Y Y2 of the MBE unit The blower motor will change to the cfm for high speed operation and the VSTB will supply 24Vac to Y2 at the heat pump The compressor and outdoor fan will change to high speed operation When the Y2 15 satisfied the thermostat will remove t
129. e use of start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device 22 ACCESSORIES DSX SSX16 om Description 024 036 048 060 0 x x x ___ __ cu peuxem 0 __ cus 0 LX mee o P Eu mue yr uet T NEP 1 Installed indoor coil 2 Required for heat pump applications where ambient temperatures fall below with 50 or higher relative humidy 3 Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device ASX16 pe Se See 024 030 036 042 048 060 mew LE XL X cus eme dP i EC pw LL TX3N4 TXV Kit TX5N4 TXV Kit Installed on indoor coil Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy 3 Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of tart assist components
130. e voltage is present reinsert the 5 pin connector and remove the 16 pin connector 6 Check for signal 24 volts at the transformer 68 7 Check for signal 24 volts from the thermostat to the terminal at the 16 pin connector 8 Using anohmmeter check for continuity from the 1 amp 3 common pins to the transformer neutral or C thermo stat terminal If you do not have continuity the motor may function erratically Trace the common circuits locate and repair the open neutral 9 Setthe thermostatto Fan On Using a voltmeter check for 24 volts between pin 15 G and common 10 Disconnect power to compressor Set thermostat callfor cooling Using a voltmeter check for 24 volts at pin 6 and or 14 11 Set the thermostat to call for heating Using voltmeter check for 24 volts at pin 2 and or 11 for 120VAC Power Connector Lines 1 and 2 will be connected applications only Gnd AC Line Connection AC Line Connection 2 9 5 OUT 8 Ce OUT ADJUST 7 15 G FAN Y1 6 14 2 COOL 5 13 EM 2 DELAY 4 12 24 4 HEAT 2 10 BK PWM SPEED 1 1 9 REV VALVE 16 PIN ECM HARNESS CONNECTOR If you do not read voltage and continuity as described the problemisin the control or interface board but notthe motor If you register v
131. eating ramping profile The ECM blower motor is then de energized 3 0 Continuous Fan Operation 3 1 On ademand for continuous fan operation the thermo stat closes the contacts providing 24 VAC to the terminal at the integrated air handler control The control energizes the variavble speed ECM motor at 30 of the air handler s maximum airflow capability 3 2 Removing the thermostat demand for continuous fan opens the G contacts removing 24VAC from the integrated air handler control The integrated AH control immediately de energizes the ECM blower motor 4 0 Defrost Operation 4 1 The control in the outdoor unit determines when a defrost cycle is needed Upon determing that a defrost cycle is needed the outdoor control de energizes the condensor fan motor and energizes the reversing valve A W1 signal is sent from the outdoor unit control to the integrated air handler control 4 2 The air handler control energizes the eletric heat se quencer output to turn on the electric heaters The appropriate airflow demand is provided to the motor greater of heat pump or auxiliary heat 4 3 At the conclusion of the defrost cycle the outdoor unit control removes the W1 output to the integrated air handler control de energizes the reversing valve and re energizes the condensor fan motor 5 0 Emergency Heat Operation 5 1 Onademandfor emergency heatoperation the thermo stat closes the W1 W2 contacts providing 24VAC to
132. eatis available for heating The balance point temperature is set via the CTKO1AA thermostat in the advanced installer s configuration menu The CTKO1AA thermostat also allows the user to disable the electric heaters in the air handler modular blower depending onthe outdoor temperature The electric heaters are disabled Ifthe outdoor temperature is above the set point All heating is supplied by the heat pump The outdoor air temperature is aquired from the outdoor air temperature OAT sensor included with the ASZC DSZC heat pump models Faults with the sensor will affect heating operation NOTE The individual subsystems will cease operation ifthe request for operationis NOT refreshed after 5 minutes This is a built in safe guard to prevent the possibility of runaway 94 operation 1 0 Cooling Operation Low and High Stage Cool 1 1 The CKT01AA thermostat sends a request for low stage cooling through the network to the unitary UC controlin the heat pump The UC control receives the command and processes any compressor and fan delays 1 2 The UC control sends a request for low stage fan speed to the air handler modular blower The blower energizes the ECM blower motor at the appropriate speed 1 3 The heat pump energizes the compressor and condenser fan motor at the appropriate low stage speeds The reversing valve is also energized 1 4 The system operates at low stage cooling 1 5 If the thermostat demand cannot met
133. eature Split X Condenser 16 Seer condensing units New revisions have SSX160591AA screw locations moved in the top panel base pans louvers and control box covers SSX160 24 36 48 1BA Special High Feature Split X Condenser 16 Seer condensing units New revisions have SSX160 30 42 1 SmartCoil coils Special High Feature Split X Condenser 16 Seer condensing units New BA revision SSX160601BA models use ZPS49K compres sor PRODUCT IDENTIFICATION Split System Air Conditioners R410A DSX160 1AA Deluxe Split X Condenser 16 Seer condensing units Introduces Goodman 2 stage 16 SEER condensing units with R 410A Deluxe Split X Condenser 16 Seer condensing units Goodman 2 stage 16 SEER condensing units with R 410A Conversion of 2 amp 3 ton models to SmartCoil Coils DSX180 1AA Deluxe Split X Condenser 18 Seer condensing units Introduces Goodman 2 stage 18 SEER condensing units with R 410A Deluxe Split X Communicating condensing units 16 Seer R410A heat pump units DSXC16 1AA Introduces Goodman 2 stage 16 SEER condensing units with R 410A communicating models Deluxe Split X Condenser 16 Seer condensing units Goodman 2 stage 16 SEER ten condensing units with R 410A using SmartCoil coils Deluxe Split X Communicating condensing units 16 Seer R410A heat pump units DSXC160601BA Introduces Goodman 2 stage 16 SEER condensing units with R 410A communicating models New BA revison models use ZPS49K com
134. eck the motor windings for continuity to ground pins to motor shell Ifthe ohmmeter indicates continuity to ground the motor is defective and must be replaced Using ohmmeter check the windings for continuity pin to pin If no continuity is indicated the thermal limit overload device may be open Allow motor to cool and retest 3 pin motor connector 5 pin connector S 16D ECM CFM ADJUSTMENTS MBE AEPF MBE MOTOR This section references the operation characteristics of the MBE AEPF models motor only The ECM control board is factory set with the dipswitch 4 in the ON position and all other dipswitches are factory setin the OFF position When MBE AEPF are used with 2 stage cooling units dipswitch 4 should be in the OFF position For most applications the settings are to be changed according to the electric heat size and the outdoor unit selection The MBE AEPF products use a General Electric motor This motor provides many features not available on the traditional PSC motor These features include e Improved Efficiency e Constant Soft Start and Stop e Improved Humidity Control MOTOR SPEED ADJUSTMENT Each ECM blower motor has been preprogrammed for operation at 4 distinct airflow levels when operating in Cooling Heat Pump mode or Electric Heat mode These 4 distinct levels may also be adjusted slightly lower or higher if desired The adjustment bet
135. ect the unusedleads from the blower motor and have no affect on the board s operation 5 40 ELECTRONIC BLOWER HEATER CONTROL Description The AVPTC and MBVC models utilize an electronic control that provides ECM blower motor control and control of up to two electric heat sequencers The control has thermostat inputs for up to two stages of cooling two stages of electric heat reversing valve and dehumidification Control input is 24 All dipswitches necessary to setup cooling heat pump electric heat airflow are fully integrated into the control Dehumidificationis enabled disabled via an on board dipswitch Features The new air handler control includes advanced diagnostic features with fault recall estimated CFM display via on board LED and ComfortNet ready Diagnostics includes heater kit selection diagnostics open fuse internal control fault data errors and blower motor faults Data errors are not included in the fault recall list Diagnostic error codes are displayed on single red LED The estimated CFM 15 displayed on an on board green LED The LED flashes once for each 100 CFM The AVPTC MBVC air handlers may be used in a fully communicating ComfortNet system when matched with a compatiable outdoor unit and the CTKO1AA thermostat fully communicating system offers advanced setup and diagnostic features Basic Operation The air handler control receives thermostat
136. ed Simultaneously in ASXC DSXC16036 Em ASXC16036 ASXC16036 ASXC16036 ASXC16036 Model DSXC16036 DSXC16036 DSXC16036 CSR U 1 X CSR U 2 Hard start Kit CSR U 3 Hard start Kit X Freeze 2 Protection Kit Liquid Line ENGS Solenoid Valve Loe OT18 60A X Pp XU x X Outdoor Thermostat Lockout Thermostat B1141643 24V Transformer Contains 20 brackets four brackets needed to anchor unit to pad 1 Field installed non bleed expansion valve kit Condensing units and heap pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device nstalled on the indoor coil Available in 24V legacy mode only This feature is integrated in the communicating mode This component is included in the communicating thermostat kit X X OT18 60A X 25 ACCESSORIES ASX13 ASX13 ASX13 ASX13 ASX13 ASX13 ASX13 ASX13 Description 018 024 030 036 042 048 060 ABK 20 Anchor Bracket Kit X X 5 01 Anti Short Cycle Kit X CSR U 1 Hard start Kit CSR U 2 Hard start Kit 1 Lskora Line Solenoid GSX13 018 024 030 036 042 048 060 psu TP esos fresni O EE SER NE REI X p JN
137. ed with a single stage GSX SSX ASX and VSX condensers dip switch 4 must be set to the on position on the VSTB inside the MBE AEPF The Y output from the indoor thermostat must be connected to the yellow wire labeled Y Y2 inside the wire bundle marked Thermostat and the yellow wire labeled Y Y2 inside the wire bundle marked Outdoor Unit must be connected to Y at the condenser The orange jumper wire from terminal Y1 to terminal O on the VSTB inside the MBE AEPF must remain connected 1 0 Cooling Operation 1 1 On ademand for cooling the room thermostat energizes and Y and 24Vac is supplied to and Y Y2 of the MBE AEPF unit The VSTB inside the MBE AEPF will turnon the blower motor and the motor will ramp up to the speed programmed inthe motor based on the settings for dip switch 5 and 6 The VSTB will supply 24Vac to Y at the condenser andthe compressor andcondenser are turnedon 1 2 When the cooling demand is satisfied the room thermo stat removes the 24Vac from and Y The AEPF removes the 24Vac from Y at the condenser and the compressor and condenser fan are turned off The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor 2 0 Heating Operation 2 1 On a demand for heat the room thermostat energizes W1 and 24Vac is supplied to terminal E W1 of the VSTB inside the MBE
138. eed 2 4 The condenser energizes the compressor and con denser fan motor at the appropriate low stage speeds 2 5 The system operates at low stage heat pump heating 2 6 If the thermostat demand cannot be met on low stage heat pump heating the CTKO1AA thermostat sends a request for high stage heat pump heating to the heat pump The heat pump in turn sends a request for high stage fan speed to the air handler modular blower The AH control increases the blower speed to the high stage SERVICING heat pump heating speed 2 7 The heat pump s unitary control energizes the high stage compressor solenoid and switches the condenser fan motor to high speed 2 8 The system operates at high stage heat pump heating 2 9 If the thermostat demand cannot be met on high stage heat pump heating the CTKO1AA thermostat sends a request for auxiliary heat to the air handler modular blower 2 10 Upon receiving a demand for auxiliary heat the air handler control determines the appropriate airflow for high stage heat pump auxiliary heat operation and operates the ECM blower motor at that airflow demand The air handler control determines which airflow demand is greatest and applies that demand when operating the ECM blower motor 2 11 The system operates at high stage heat pump heating plus auxiliary heat 2 12 Once the thermostat demandis satisfied the CTK01AA thermostat commands the heat pump to end heat pump heating operation The compres
139. el base pans louvers and control box covers lt 140 1 Amana Brand Split X Condenser 14 Seer condensing units The new revisions have horizontal style louvers Amana Brand Split X Condenser 14 Seer condensing units Revised condenser coils by BORIS removing 1 hairpin Reduce R410A quantity by 6 ounces ASX 140421AD Brand E Split X Condenser 14 Seer condensing units Introduces ASX140421A in Amana Brand Split X Condenser 14 Seer condensing units Revision for ASX140421 in ASX140421BA 29 platform It will the reduce the unit charge from 180 oz to 170 oz and replace the 1 4 hp outdoor unit motor with 1 6 hp motor ASX140 18 30 1BA Brand Split X Condenser 14 Seer condensing units Introduction of Amana ASX140421CA Brand 14 SEER R 410A Condensers using SmartCoil coils Amana Brand Split X Condenser 16 Seer condensing units New revisions have screw ASX160 1AB locations moved the top panel base pans louvers and control box covers ASX160 1AC Amana Brand Split X Condenser 16 Seer condensing units The new revisions have horizontal style louvers Amana Brand Split X Condenser 16 Seer condensing units Introduction of Amana i Brand 16 SEER Rt 0A Condensers Conversion of 2 3 ton models to SmartCoil coils Amana Brand Split X Condenser 18 Seer condensing units Initial release new models of Amana Brand Deluxe 16 SEER AC R410A conditioners
140. elay and outdoor fan relay is de energized The compressor high stage solenoid is de energized if it was energized The UC control sends an appropriate command to the indoor unit to de energize the indoor blower motor 41 SYSTEM OPERATION COOLING CYCLE Reversing Valve Energized Indoor 9 Coil 4 Accumulator Thermostatic Expansion Valve lt gt Filter Dryer Check Valve HEATING CYCLE Reversing Valve De Energized Indoor V Outdoor Coil J Coil Accumulator Thermostatic Expansion Valve Bi Flow d Filter Dryer Check Valve 42 SYSTEM OPERATION EXPANSION VALVE CHECK VALVE ASSEMBLY EXPANSION VALVE CHECK VALVE ASSEMBLY INCOOLING OPERATION INHEATING OPERATION lt Most expansion valves used current Amana Brand Heat Pump products use an internally checked expansion valve This type of expansion valve does not require an external check valve as shown above However the principle of operation is the same RESTRICTOR ORIFICE ASSEMBLY RESTRICTOR ORIFICE ASSEMBLY INCOOLING OPERATION INHEATING OPERATION In the cooling mode the orifice is pushed into its In the heating mode the orifice moves back off its seat forcing refrigerant to flow through the metered seat allowing refrigerant to flow unmetered around hole in the center of the orifice the outside of the orifice 43 SYSTEM OPERATION AFE18 60A CONTROL BOARD DESCRIPTION
141. electric embedment are strongly constructed but are vulnerable to careless compressor installation or maintenance proce dures and equally vulnerable to internal electrical short circuits caused by excessive system contaminants To AVOID POSSIBLE EXPLOSION NEVER APPLY FLAME OR STEAM TO A REFRIGERANT CYLINDER IF vou MUST HEAT A CYLINDER FOR FASTER CHARGING PARTIALLY IMMERSE IT IN WARM WATER NEVER A CYLINDER MORE THAN 80 FULL OF LIQUID REFRIGERANT NEVER ADD ANYTHING OTHER THAN R 22 TO AN R 22 CYLINDER OR R 410A AN R 410A CYLINDER THE SERVICE EQUIPMENT USED MUST BE LISTED OR CERTIFIED FOR THE TYPE OF REFRIGERANT USED STORE CYLINDERS IN A COOL DRY PLACE NEVER USE A CYLINDER AS A PLATFORM OR A ROLLER AVOID POSSIBLE EXPLOSION USE ONLY RETURNABLE NOT DISPOSABLE SERVICE CYLINDERS WHEN REMOVING REFRIGERANT FROM A SYSTEM ENSURE THE CYLINDER IS FREE OF DAMAGE WHICH COULD LEAD A LEAK OR EXPLOSION ENSURE THE HYDROSTATIC TEST DATE DOES EXCEED 5 YEARS ENSURE THE PRESSURE RATING MEETS OR EXCEEDS 400 LBS WHEN IN DOUBT DO NOT USE CYLINDER A warning To AVOID POSSIBLE INJURY EXPLOSION OR DEATH PRACTICE SAFE HANDLING OF REFRIGERANTS In either of these instances an electrical short between the terminal and the compressor housing may result in the loss of integrity between the terminal and its dielectric embed ment This loss may cause the terminals to be expelled thereby venting the
142. emperature thereby never satisfying the cooling demand The furnace will continue to operate and can only be stopped by switching the thermostatto the off position or removing power to the unit and then replacing the outdoor thermostat When the AFE18 receives a Y and O input from the indoor thermostat it recognizes this as a cooling demand the cooling mode Ifthe outdoor thermo statis stuck in the closed position switching the Y demand to the W1 furnace input during the cooling mode as described above the AFE18 won t allow the furnace to operate The outdoorthermostat will have to be replaced to restore the unit to normal operation d WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 44 TROUBLESHOOTING CHART COOLING HP ANALYSIS CHART System Complaint No Cooling Coal mesic Operating Pressures 2 2 5 8 21 8 g POSSIBLE CAUSE 5 5 5 9 3 o 578 Lie 5 5 DOTSINANALYSIS amp 2 2515 z 8 55 E GUIDE INDICATE 2 Je 5 5 18 5 25 25155 8 e le d 5 POSSIBLECAUSE 9 259122 S FZ VIS 2 2 9 12 5 2 1218 g g 8 2 2 o 2 9 2 2 2 8 21855 5 91215 1515 0 8 Sis 5
143. er condensing units Revised condenser coils by removing 1 haripin Special High Feature Split X Condenser 14 Seer condensing units Model contains the Son TES OIAG Broad Ocean motor 0131 00060 Special High Feature Split X Condenser 14 Seer condensing units Models contain the SSX14036 601AC Broad Ocean motor 013 1M00061 SSX14030 361 AD Special High Feature Split X Condenser 14 Seer condensing units Revised condenser coils by removing 1 haripin Special High Feature Split X Condenser 14 Seer condensing units Introduces 55 14042 29 base Special High Feature Split Condenser 14 Seer condensing units Revision for 55 140421 557140421 in 29 base pan and it will the reduce the unit charge from 180 oz to 170 oz and replace the 1 4 hp outdoor unit motor with 1 6 hp motor Special High Feature Split X Condenser 14 Seer condensing units Revised condenser coils by removing 1 haripin SSX140 18 36 1BA Special High Feature Split X Condenser 14 Seer condensing units Introduction of SSX 140421 Goodman 14 SEER R 410A Condensers using SmartCoil Coils T Special High Feature Split X Condenser 16 Seer condensing units Introduces Goodman PRU DOC TS 16 SEER AC 410A M Special High Feature Split X Condenser 16 Seer condensing units New revisions have SSX160 1AB screw locations moved in the top panel base pans louvers and control box covers SSX14030 421AE SSX160 1AB Special High F
144. f no changeis noticed the valve is restricted the power element is faulty or the equalizer tube is plugged 5 Capture the charge replace the valve and drier evacuate and recharge S 111 FIXED ORIFICE RESTRICTOR DEVICES The fixed orifice restrictor device flowrator used in conjunc tion with the indoor coil is a predetermined bore I D It is designed to control the rate of liquid refrigerant flow into an evaporator coil The amount of refrigerant that flows through the fixed orifice restrictor device is regulated by the pressure difference between the high and low sides of the system In the cooling cycle when the outdoor air temperature rises the high side condensing pressure rises Atthe same time the cooling load onthe indoor coil increases causing the low side pressure to rise but at a slower rate Since the high side pressure rises faster when the tempera ture increases more refrigerant flows to the evaporator increasing the cooling capacity of the system When the outdoor temperature falls the reverse takes place The condensing pressure falls and the cooling loads on the indoor coil decreases causing less refrigerant flow Astrainer is placed on the entering side of the tube to prevent any foreign material from becoming lodged inside the fixed orifice restriction device If a restriction should become evident proceed as follows 1 Recoverrefrigerantcharge 2 Remove the orifice or tube strainer assembly and
145. features CT compatible Air Handler or Modular Blower CT compatible Air Handler or Modular Blower AComfortNet heating air conditioning system differs from alegacy traditional system in the mannerin which the indoor unit outdoor unit and thermostat interact with one another In atraditional system the thermostat sends commands to the indoor and outdoor units via analog 24 VAC signals Itis a one way communication path in that the indoor and outdoor units typically do not return information to the thermostat On the other hand the indoor unit outdoor unit and thermo stat comprising a ComfortNet system communicate digi tally with one another Itis now a two way communications path The thermostat still sends commands to the indoor and outdoor units However the thermostat may also request and receive information from both the indoor and outdoor units This information may be displayed on the thermostat The indoor and outdoor units also interact with one another The outdoor unit may send commands to or request informa tion from the indoor unit This two way digital communica tions between the thermostat and subsystems indoor out door unit and between subsystems is the key to unlocking the benefits and features of the ComfortNet system Two way digital communications is accomplished using only two wires The thermostat and subsystem controls are powered with 24 VAC Thus a maximum of 4 wires between
146. g additional components Use AMANA brand part number RF0001 27 suction line filter drier kit This drier should be installed as close to the compressor suction fitting as possible The filter must be accessible and be rechecked for a pressure drop after the system has operated for a time It may be necessary to use new tubing and form as required NOTE At least twelve 12 inches of the suction line immediately out of the compressor stub must be discarded due to burned residue and contaminates 1 Remove compressor discharge line strainer 2 Remove the liquid line drier and expansion valve 3 Purge all remaining components with dry nitrogen or carbon dioxide until clean 4 Install new components including liquid line drier 5 Braze all joints leak test evacuate and recharge sys tem 106 6 Start up the unit and record the pressure drop across the drier 7 Continue to run the system for a minimum of twelve 12 hours and recheck the pressure drop across the drier Pressure drop should not exceed 6 PSIG 8 Continue to run the system for several days repeatedly checking pressure drop across the suction line drier If the pressure drop never exceeds the 6 PSIG the drier has trapped the contaminants Remove the suction line drier from the system 9 If the pressure drop becomes greater then it must be replaced and steps 5 through 9 repeated until it does not exceed 6 PSIG NOTICE Regardless the cause for burno
147. g to the condenser The condenser in turn sends a request for high stage fan speed to the air handler modular blower The blower increases the blower speed to the high stage cooling speed 1 6 The condenser s unitary control energizes the high stage compressor solenoid and switches the condenser fan motor to high speed 1 7 The system operates at high stage cooling 1 8 thermostat demandis satisfied the CTK01AA thermostat commands the UC control to end cooling operation condenser de energizes the compressorand condenser fan motor The UC control continues providing a fan requestuntil any cooling blower OFF delays have expired 2 0 Heating Operation Auxiliary Emergency Heat 2 1 The CTK01AA thermostat sends a request for emer gency heatto the air handler modular blower 2 2 The air handler control energizes the ECM blower motor 93 SERVICING at the emergency heat speed The electric heat se quencer outputs are also energized thus energizing the electric heaters 2 3 The system operates at emergency heat 2 4 Once the thermostat demand is satisfied the CTKO1AA thermostat commanas the air handler modular blower to end emergency heat operation The air handler control de energizes the electric heat sequencer outputs The ECM blower motor remains energized until any blower OFF delay timing has expired 3 0 Continuous Fan Operation 3 1 With ademandfor continuous fan operation the CTKO1AA thermosta
148. gh pressure switch to trip SERVICING DIAGNOSTICS TABLE 3 WIRE COMFORT ALERT MODULE Status LED Status LED Description Status LED Troubleshooting Information Green POWER Module has power Supply voltage is present at module terminals Red TRIP Thermostat demand signal 1 Compressor protector is open Y1 is present but the 2 Outdoor unit power disconnect is open compressor is not 3 Compressor circuit breaker or fuse s is open running 4 Broken wire or connector is not making contact 5 Low pressure switch open if present in system 6 Compressor contactor has failed open Yellow ALERT Long Run Time 1 Low refrigerant charge Flash Code 1 Compressor is 2 Evaporator blower is not running running extremely 3 Evaporator coil is frozen long run cycles 4 Faulty metering device 5 Condenser coil is dirty 6 Liquid line restriction filter drier blocked if present in system 7 Thermostat is malfunctioning Yellow ALERT System Pressure Trip 1 High head pressure Flash Code 2 Discharge or suction 2 Condenser coil poor air circulation dirty blocked damaged pressure out of limits or 3 Condenser fan is not running compressor overloaded 4 Return air duct has substantial leakage 5 If low pressure switch present in system check Flash Code 1 information Yellow ALERT Short Cycling 1 Thermostat demand signal is intermittent Flash Code 3 Compressor is running 2 Time delay relay or control board defective only brief
149. gram is for reference only Not all wiring is as shown above Refer to the appropriate wiring diagram for the unit being serviced 118
150. hange to low speed On most digital electronic thermostats W2 will remain energized until the first stage demand W1 is satisfied and then the W1 W2 demands will be removed 2 3 When the W1 heat demand is satisfied the room thermostat will remove the 24Vac from E W1 and the VSTB removes the 24Vac from HR1 The contacts on HR1 will open between 30 to 70 seconds andturn off the heater element s andthe blower motor ramps down to complete stop MBE AEPF WITH SINGLE STAGE GSZ SSZ ASZ and VSZ HEAT PUMPS When used with a single stage GSZ SSZ ASZ or VSZ heat pumps dip switch 4 must be set to the ON position on the VSTB inside the MBE The Y output from the indoor thermostat mustbe connected to the yellow wire labeled Y2 inside the wire bundle marked Thermostat and the yellow wire labeled 2 inside the wire bundle marked Outdoor Unit must be connected to Y at the heat pump The orange jumper wire from terminal 1 to terminal on the VSTB inside the MBE AEPF must be re moved 3 0 COOLING OPERATION On heat pump units when the room thermostat is set to the cooling mode 24Vacis supplied to terminal ofthe VSTB inside the MBE AEPF unit The VSTB will supply 24Vac to O atthe heat pumpto energize the reversing valve As long as the thermostatis setfor cooling the reversing valve will be in the energized position for cooling 3 1 Onademandfor cooling
151. he Y2 demand and the VSTB will remove the 24Vac from Y2 atthe heat pump The blower will drop to 60 ofthe programmed cfm and the compressor and outdoor fan will change to low speed operation On most digital electronic thermostats Y2 will remain energized until the first stage cooling demand Y1 is satisfied and then the G Y1 and Y2 demands will be removed 3 3 When the first stage cooling demand Y1 is satisfied the room thermostat removes the 24Vac from and Y1 The VSTB removes the 24Vac from Y at the heat pump andthe compressor and outdoor fan are turned off The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor 4 0 Heating Operation On heat pump units when the room thermostat is set to the heating mode the reversing valve is not energized As long as the thermostatis setfor heating the reversing valve will be in the de energized position for heating except during a defrost cycle Some installations may use one or more outdoor thermostats to restrict the amount of electric heat that is available above a preset ambient temperature Use of optional controls such as these can change the operation of the electric heaters during the heating mode This sequence of operation does not cover those applications 4 1 On ademandfor first stage heat with heat pump units the room thermostat energizes and Y 1 and 24Vac is
152. he unitary UC control The compressor contactor relay coil on the UC control is non serviceable 1 Remove the leads from the holding coil 2 Using an ohmmeter test across the coil terminals If the coil does not test continuous replace the relay or contactor S 8 CHECKING CONTACTOR CONTACTS WARNING 2552 O e Disconnect ALL power before servicing SINGLE PHASE 1 Disconnectthe wire leads from the terminal T side of the contactor 2 With power ON energize the contactor WARNING YI Line Voltage now present 3 Using a voltmeter test across terminals A L2 T1 No voltage indicates CC1 contacts open If ano voltage reading is obtained replace the contactor VOLT OHM METER Ohmmeter for testing holding coil Voltmeter for testing contacts TESTING COMPRESSOR CONTACTOR Single Phase THREE PHASE Using a voltmeter test across terminals A L1 L2 L1 L3 and L2 L3 If voltage is present proceedto B If voltage is not present check breaker or fuses on main power supply B T1 T2 T1 T3 and T2 T3 If voltage readings are not the same as in A replace contactor VOLT OHM Ohmmeter for testing holding coil Voltmeter for testing contacts TESTING COMPRESSOR CONTACTOR Three phase S 8A CHECKING UNITARY UC CONTROL COMPRESSOR CONTACTOR RELAY CONTACTS 2 WARNING s Disconnect ALL power before servicing 1 Connect voltmeter to lugs L2 and C 2 With
153. i SEE NOTE 3 INPUT 52 ED FROM FUTURE USE THERMOSTAT 82 LO SPEED HEAT W1 HEATER W Wi _ SPEED HEAT W2 HEATER EM wa e 83 G 53 ERROR CONDITION 53 CAN ONLY READ 53 ERROR CONDITION 53 CAN ONLY READ M od R 24 VAC R TO T STAT R THERMOSTAT COM GND COM TO T STAT C1 C2 NOTES 1 THE TEST SPADE CAN BE CONNECTED TO ANY OTHER TEST SPADE ON EITHER BOARD 2 THE LED WILL BE RED AND WILL LIGHT TO INDICATE HALF CYCLES THE LED WILL BE GREEN AND WILL LIGHT TO INDICATE HALF CYCLES BOTH RED AND GREEN ILLUMINATED WILL INDICATE FULL CYCLES DENOTED 3 SIGNAL OUT CONDITION FOR W1 W2 HEATER WILL BE AFFECTED BY OT1 AND OT2 PJ2 JUMPERS AND OUTDOOR THERMOSTATS ATTACHED THE TABLE ABOVE ASSUMES OT1 PJ4 IS REMOVED AND 2 PJ2 15 MADE WITH NO OUTDOOR THERMOSTATS ATTACHED 48 SERVICING S 3E CTK01AA COMFORTNET THERMOSTAT OVERVIEW The ComfortNet system or CT system is asystem that includes a ComfortNet compatible modular blower and air conditioner or heat pump with a CTKO1AA thermostat Any other system configurations are considered invalid ComfortNet systems and must be connected as a tradi tional or legacy system The table below compares the valid CT systems CTTM compatible Air Conditioner CT compatible Heat Pump Full CT system benefits amp features Full CT system benefits amp
154. ies to default is 0 heat pump only Selects the indoor blower heat ON delay HT ON seconds applies to heat pump only Heat OFF Delay 30 50 70 or 90 seconds default Selects the indoor blower heat OFF delay Defrost Interval 30 60 90 or 120 minutes default Selects the time interval between defrosts Compressor Delay 0 5 15 or 30 seconds default is 5 Selects the compressor off time after reversing valve shift applies to heat pump only 53 SERVICING S 4 CHECKING TRANSFORMER AND CONTROL CIRCUIT AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death A step down transformer 208 240 volt primary to 24 volt sec ondary is provided with each indoor unit This allows ample capacity for use with resistance heaters The outdoor sec tions do not contain a transformer see note below NOTE ComfortNet ready condensing units may have an optional 240VAC to 24VAC transformer installed This trans former provides 24VAC power to the unitary UC control in some communicating system installation scenarios WARNING Disconnect ALL power before servicing 1 Remove control panel cover or etc to gain access to transformer With power ON WARNING Line Voltage now present 2 Using avoltmeter check voltage across secondary volt age side of transforme
155. igher air handler must be on medium or high speed 34 ACCESSORIES ELECTRIC HEAT KIT APPLICATIONS ARUF o ne me me me 1 16 1 16 1 16 1 16 1 16 1 16 1 16 x x x X X x x HKR 06 x x X X x x evene x x x x X x x X X X x x HKR3 20 gt lt x x X X X EN M X X X X X X X X X X X i x x Revision level that may may not designated C Circuit breaker option Heat kit required three phase power supply Air handler must either be on medium or high speed Air handler must be on high speed For static pressure of 0 6 or higher air handler must be on medium or high speed ________ ome dme me 00A1A 00A1B 00A1B 00A1B 00A1B gt x x x HKR 08 HKR O8C x x x _ X x X x HRAS 0 X X X 111 X X X HESS 7 X x pem p x qp X 2 124 Revision level that may may not designated C Circuit breaker option Heat kit required three phase power supply Air handler must either be on medium or high speed Air handler
156. indicates if compressor is tripped or S gt 4 Se iw WE UN D 4 ye NS b Compressor 99 SERVICING DIAGNOSTICS 2 WIRE MODULE Applies to ASX130 18 60 CA ASX140 18 36 1CA ASX140421DA and ASX140 48 60 1BA units AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing this unit Multiple power sources may be present Failure to do so may cause property damage personal injury or death Comfort Alert is self contained with no required external sensors and is designed to install directly into the electrical box of any residential condensing unit that has a Copeland Scroll compressor inside Once attached Comfort Alert provides around the clock monitoring for common electrical problems compressor defects and broad system faults If a glitch is detected an LED indicator flashes the proper alert codes to help you quickly pinpoint the problem See Diagnostic Table 2 Wire Comfort Alert Module on previous page NOTE The 2 wire Comfort Alert module does not provide a diagnostic code 8 Welded Contactor Additionally the 2 wire module does not require a manual reset to clear alert codes Bold line shows field installed wiring Dashed line shows thermostat demand wiring in system without HTCO HPCO CPCO and ECB Comfort Alert Diagnostics Module Schematic Abbreviation Descriptions Com
157. ing Operation in section 4 5 2 The defrost control in the heat pump unit checks to see if a defrost is needed every 30 60 or 90 minutes of heat pump operation depending on the selectable setting by monitoring the state ofthe defrostthermostat attached to the outdoor coil 5 3 If the temperature of the outdoor coil is low enough to cause the defrost thermostat to be closed when the defrost board checks it the board will initiate a defrost cycle 5 4 When a defrost cycle is initiated the contacts of theHVDR relay onthe defrost board open andturns outdoor fan The contacts of the LVDR relay on the defrost board closes and supplies 24Vac to O and W2 The reversing valve is energized and the contacts on HR1 close and turns on the electric heater s The unit will continue to run in this mode until the defrost cycle is completed 5 5 When the temperature of the outdoor coil rises high enough to causes the defrost thermostat to open the defrost cycle will be terminated If at the end of the programmed 10 minute override time the defrost thermo stat is still closed the defrost board will automatically terminate the defrost cycle 5 6 When the defrost cycle is terminated the contacts of the HVDR relay on the defrost board will close to start the outdoor fan and the contacts of the relay will open and turn off the reversing valve and electric heater s The unit will now be back in a normal heating mode with a heat
158. inputs either from astandard 24VAC thermostat or the ComfortNet thermostat For cooling and heat pump operation the control operates the variable speed blower motor at the demand as determined from the thermostat input s If a demand for electric heat is received the control will provide a 24VAC output for up to two electric heat sequencers 82 Troubleshooting Motor Control Circuits AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Turn on power to air handler or modular WARNING _ Line Voltage now present 2 Check voltage between pins 1 and 4 at the 4 wire motor connector on the control board Voltage should be between 9 and 15 VDC Replace control if voltage is not as specified Electric Heat Sequencer Outputs AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Turn on power to air handler or modular blower WARNING YI Line Voltage now present 2 Disconnect the 4 circuit harness connecting the control to the electric heater kit 3 Provide a thermostat demand for low stage auxiliary heat W1 Measure the voltage between circuits 1 and 3 at the on board electric heat connector
159. inted T Flowrator AVPTC313714AA Communicating ready w 4 wires Introduction of new 13 SEER Air Handler Models with the new communicating control amp serial communicating indoor 426014 blower motor All Models will be suitable for ACNF 4 AA A Single Piece Air Handler Ceiling Mount N Uncased Flowrater Revision release all models of 13 SEER Dayton uncased air handlers A Single Piece Air Handler Ceiling Mount N Uncased Flowrater Revision ACNF 16AA release all models of 13 SEER Dayton uncased air handlers All Models will be suitable for use with R 22 and R 410A A Single Piece Air Handler Mount Uncased Flowrater Revision ACNF 1BA mU She ae ao replaces current wavey fin design with new louvered fin design AH 4 A Single Piece Air Handler Hydronic Air Handler Revision replaces the time delay relay in the AH air handlers with the UTEC time delay control board PRODUCT IDENTIFICATION 1 Modular Blower R PSC Motor Introduces module blower with PSC blower motor MBE AA 1AA Modular Blower E Multi Position Variable Speed Introduces module blower with variable speed blower motor MBE AA 1BA Modular Blower E Multi Position Variable Speed Revision introduces new models adding lower kw hit kits on the S amp R plate MBVC1200AA 1AA Modular Blower V Multi Position Variable Speed Communicating ready w 4 MBVC1600AA 1AA wires Introduction of module
160. isplay only 2 NOTE Consecutively repeated faults are shown a maximum of 3 times Indication for Display Only not User Modifiable Submenu Modifiable Options Outdoor Air Temperature Displays the outdoor air Sensor may or may not be available on an AIR TMP temperature air conditioner Check air conditioner instructions for details Outdoor Coil Temperature Displays the outdoor coil Required for heat pump operation COIL TMP temperature SERVICING ASXC ASZC DSXC DSZC ApvaNcED User Menus COOL SET UP User Modifiable Options Cool Airflow Trim 10 to 10 in 2 increments Selects the airflow trim amount applies to air CL PRFL conditioner only Cool ON Delay 5 10 20 or 30 seconds default is Selects the indoor blower ON delay applies Cool OFF Delay 30 60 90 or 120 seconds default Selects the indoor blower OFF delay applies CL OFF is 30 seconds to air conditioner only Dehumidification Select ON or OFF default is OFF Selecting OFF disables dehumidification DEHUM selecting ON enables dehumidification applies to air conditioner only STATUS Indication for Display Only not User Modifiable Mode MODE Displays the current air conditioner operating mode CFM CFM Displays the airflow for the current operating mode HEAT SET UP User Modifiable Options Heat Airflow Trim 1096to 10 in 2 increments Selects the airflow trim amount appl
161. it will be forced off the seat allowing liquid to flow around the restrictor A check valve is not required in this circuit COOLING CYCLE Forlegacy room thermostat When the room thermostat calls for cool the contacts of the room thermostat close making terminals R to Y1 amp G if thermostat calls for low stage cool or R to Y1 Y2 amp G if thermostat calls for high stage cool the low voltage circuit of the transformer is completed Current now flows through the magnetic holding coils of the compressor contactor CC andfan relay RFC Ifthermostat calls for high stage cool the microprocessor on the UC board will also energize the compressor high stage solenoid to run the compressor at full capacity This draws in the normally open contact CC starting the compressor and condenser fan motors in either low or high stage depending on the thermostat s demand At the same time contacts RFC close starting the indoor fan motor When the thermostat is satisfied it opens its contacts breaking the low voltage circuit causing the compressor contactor and indoor fan relay to open shutting down the system If the room thermostat fan selector switch should be set on the on position then the indoor blower would run continu ously rather than cycling with the compressor GSZ ASZ 552 DSZ and VSZ models energize the revers ing valve thorough the circuit in the room thermostat Therefore the reversing valve remains energize
162. led AND when used with a humidistat such as DEHUM Airflow is reduced when a call for cooling is present and the humidistat is open OFF ON 7 Move to the ON position to 8 mj Unused enable dehumidification Electric Heater Airflow Airflow for installed electric heaters is setby adjusting the dipswitches to the appropriate heater size 21 kW 20 kW 15 kW 10 kW Electric Heating Airflow indicates factory setting Thetable below indicates the airflow thatcorresponds to the available dipswitch settings MBVC Airflow Table Speed Selection Dip Switches Cool Adjust Profile Selection Selection Selection Switches Switches Switches afr or wor nr CaCO po o Tn Por or ee 30 sec 50 75 min 82 30 sec 50 set airflow 1 Select model and desired Co ines peas EN MBVCD200 high stage stage cooling airflow Determine the cooresponding tap A B C or D Set dip switches land 2 to the appropriate ON OFF positions 2 Select model and installed electric MBVC1600 heater size Set switches 9 10 and 110 the appropriate ON OFF positions 3 Select the airflow adjustment factor tap Aand Dare 0 Tap B is 10 Tap C 10 Set dip switches 3 To set Comfort Mode Select desired Comfort Mode profile MBVC2000 profiles above Set switches 5 and 6 to the approriate ON OFF positions 0140400045
163. les and moisture from the system Air in a system causes high condensing temperature and pressure resulting in increased power input and reduced performance Moisture chemically reacts with the refrigerant oil to form corrosive acids These acids attack motor windings and parts causing breakdown The equipment required to thoroughly evacuate the system is ahigh vacuum pump capable of producing a vacuum equiva lent to 25 microns absolute and a thermocouple vacuum gauge to give a true reading of the vacuum in the system NOTE Neverusethe system compressoras a vacuum pump orrun when under ahigh vacuum Motor damage could occur WARNING Do not front seat the service valve s with the compressor open with the suction line of the comprssor closed or severely restricted 1 Connect the vacuum pump vacuum tight manifold set with high vacuum hoses thermocouple vacuum gauge and charging cylinder as shown 2 Startthe vacuum pump and openthe shut off valve to the high vacuum gauge manifold only After the compound gauge low side has dropped to approximately 29 inches of vacuum open the valve to the vacuum thermocouple gauge See that the vacuum pump will blank off to a maximum of 25 microns A high vacuum pump can only produce a good vacuum if its oil is non contaminated SERVICING R 410A MANIFOLD LOW SIDE HIGH SIDE GAUGE GAUGE AND VALVE _ A AND VALVE T 800 PSI yl HOSES DA
164. level from having a larger liquid line could possibly shorten a compressor s life span 3 Single Stage Condensing Unit The maximum length of tubing must not exceed 150 feet 80feetisthe maximum recommended vertical difference betweenthe condenser and evaporator when the evapo rator is above the condenser Equivalent length is not to exceed 150 feet The vertical difference between the condenser and evapo rator when the evaporator is below the condenser can approach 150 feet as long as the equivalent length does not exceed 150 feet e distance between the condenser and evaporator ina completely horizontal installation in which the indoor and outdoor unit do not differ more than 10 feet in vertical distance from each other can approach 150 feet aslong as the equivalent length does not exceed 150 feet 4 Two Stage Condensing Unit The maximum length of tubing must not exceed 80 feet where indoor coil is located above the outdoor unit NOTE When the outdoor unit is located above the indoor coil the maximum vertical rise must not exceed 25 feet If the maximum vertical rise exceeds 25 feet premature compressor failure will occur due to inad equate oil return 5 Most refrigerant tubing kits are supplied with 3 8 thick insulation on the vapor line For long line installations over 80 feet that pass through a high ambient temperature 12 thick suction line insula tion is recommended to reduce loss of capacity
165. line near suction line service valve with adequate contact and insulate for best possible reading 3 Refertothe superheattable provided for proper system superheat Add charge to lower superheat or recover charge to raise superheat Superheat Formula Suct Line Temp Sat Suct Temp EXAMPLE a Suction Pressure 143 b Corresponding Temp F 50 c Thermometer on Suction Line 61 F To obtain the degrees temperature of superheat subtract 50 0 from 61 0 F The difference is 11 Superheat The 11 Superheat would fall in the range of allowable superheat 101 SERVICING Pressure vs Temperature Chart 40 65 4 2 4 6 8 0 2 4 6 8 0 2 4 6 8 40 6 62 0 76 78 4 6 8 5 0 6 2 7 4 6 8 0 1 5 5 6 i 7 i i 7 8 2 8 2 8 4 3 3 4 8 2 3 2 3 4 8 9 2 3 4 4 4 4 7 8 9 0 T 2 3 3 4 5 on ALLIED SIGNAL Data 102 R 410A PSIG 522 0 524 0 526 0 528 0 530 0 532 0 534 0 536 0 538 0 540 0 544 0 548 0 552 0 556 0 560 0 564 0 568 0 572 0 576 0 580 0 584 0 588 0 592 0 596 0 600 0 604 0 608 0 612 0 616 0 620 0 624 0 628 0 632 0 636 0 640 0 644 0 648 0 652 0 656 0 660 0 664 0 668 0 672 0 676 0 680 0 684 0 688 0 692 0 696 0 SERVICING REQUIRED LIQUID LINE TEMPERATURE LIQUID PRESSURE REQUIRED SUBCOOLING TEMPERATURE F AT SERVICE VALVE PSIG 8 10 12
166. ll open and turn reversing valve and electric heater s The unit will now be back in a normal heating mode with a heat pump demand for heating as described in the Heating Operation in section 4 SEQUENCE OF OPERATION This document covers the basic sequence of operation fora typical application with a mercury bulb thermostat When a digital electronic thermostat is used the on off staging ofthe outdoor unit and auxiliary heat will vary Refer to the installation instructions and wiring diagrams provided with the MBE for specific wiring connections dip switch settings and System configuration MBE AEPF WITH TWO STAGE ASX amp DSX CONDENS 5 1 0 COOLING OPERATION When used with the ASX amp DSX two stage condens ers dip switch 4 must be set to the OFF position on the VSTB inside the MBE AEPF The Y1 output from the indoor thermostat must be connected to the purple wire labeled Ylow Y1 inside the wire bundle marked Thermostat and the purple wire labeled Ylow 87 SERVICING Y1 inside the wire bundle marked Outdoor Unit mustbe connected to Ylow Y1 at the condenser The Y2 output from the indoor thermostat must be connected to the yellow wire labeled Y Y2 inside the wire bundle marked Thermostat and the yellow wire labeled Y Y2 inside the wire bundle marked Outdoor Unit must be connected to Y Y2 at the condenser The orange jumper wire from terminal Y
167. lly cut in close at approximately 50 PSIG Testfor continuity using a VOM and if not as above replace the control 5 12 CHECKING HIGH PRESSURE CONTROL AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death The high pressure control capillary senses the pressure in the compressor discharge line If abnormally high condensing pressures develop the contacts of the control open breaking the control circuit before the compressor motor overloads This control is automatically reset 1 Using an ohmmeter check across terminals of high pressure control with wire removed If not continuous the contacts are open 3 Attach a gauge to the dill valve port on the base valve With power ON T WARNING YI Line Voltage now present 4 Start the system and place a piece of cardboard in front of the condenser coil raising the condensing pressure 5 Check pressure at which the high pressure control cuts out If it cuts out at 610 PSIG 10 PSIG it is operating normally See causes for high head pressure in Service Problem Analysis Guide If it cuts out below this pressure range replace the control LIQUID LINE AUTOMATIC RESET 66 5 13 CHECKING LOW PRESSURE CONTROL The low pressure control senses the pressure in the suction line and will open its contacts on adropin pressure The low
168. lu re No power to modular blower Open fuse Communication error Broken disconnected data wire s Modular blow er is in stalled as a legacy traditional system Control is talking on Data 1 and data 2 wires reversed at modular blower therm ostat or CT compatible outdoor AC HP Short between data 1 data 2 wires Short between 24 or C 24 Depress Learn Button Check fuses and circuit breakers replace reset Replace blown fuse Check for shorts in low voltage wiring in modular blower system Reset network by depressing learn button Check data 1 data 2 voltages Check communications Check wire connections at terminal block Verify modular blower installation type legacy traditionalor communicating Check data 1 data 2 voltages Check communications Check wire connections at terminalblock Check data 1 data 2 voltages Depress once quickly for a power up reset Depress and hold Turn power OFF prior to repair Turn power OFF prior to repair Verify wires at term inal blocks are securely twisted together prior to inserting into te rm inal block Tum power OFF prior to repair Verify wires at term inal blocks are securely twisted together prior to inserting into term inal block SERVICING 3 2 The heat pump turned on in the cooling mode
169. ly 3 If high pressure switch present go to Flash Code 2 information 4 If low pressure switch present go to Flash Code 1 information Yellow ALERT Locked Rotor 1 Run capacitor has failed Flash Code 4 2 Low line voltage contact utility if voltage at disconnect is low 3 Excessive liquid refrigerant in compressor 4 Compressor bearings are seized Yellow ALERT Open Circuit 1 Outdoor unit power disconnect is open Flash Code 5 2 Compressor circuit breaker or fuse s is open 3 Compressor contactor has failed open 4 High pressure switch is open and requires manual reset 5 Open circuit in compressor supply wiring or connections 6 Unusually long compressor protector reset time due to extreme ambient temperature 7 Compressor windings are damaged Yellow ALERT Open Start Circuit 1 Run capacitor has failed Flash Code 6 Current only in run circuit 2 Open circuit in compressor start wiring or connections 3 Compressor start winding is damaged Yellow ALERT Open Run Circuit 1 Open circuit in compressor run wiring or connections Yellow ALERT Welded Contactor 1 Compressor contactor has failed closed Yellow ALERT Low Voltage 1 Control circuit transformer is overloaded Flash Code 9 2 Low line voltage contact utility if voltage at disconnect is low Flash Code number corresponds to a number of LED flashes followed by a pause and then repeated TRIP and ALERT LEDs flashing at same time means control circuit voltage is too low for
170. motor The EBTDR initiates a 7 second delay on and then energizes it s onboard relay The relay onthe EBTDR board closes it s normally open contacts and supplies powerto the blower motor When the input is removed the EBTDR initiates a 65 second delay off When the 65 seconds delay expires the onboard relay is de energized and it s contacts open and remove power from the blower motor During an electric heat only demand W1 is energized but G is not The blower motor is connected to the normally closed contacts of the relay onthe EBTDR board The other 81 SERVICING side of this set of contacts is connected to the heat se quencer on the heater assembly that provides power to the first heater element When W1 is energized the sequencer will close it s contacts within 10 to 20 seconds to supply power to the first heater element and to the blower motor through the normally closed contacts on the relay on the EBTDR When the W1 demandis removed the sequencer opens it contacts within 30 to 70 seconds and removes power from the heater element and the blower motor The EBTDR also contains a speedup terminal to reduce the delays during troubleshooting of the unit When this terminal is shorted to the commonterminal onthe EBTDR board the delay ON is reduced to 3 seconds and the delay OFF time is reduced to 5 second Two additional terminals M1 and M2 are on the EBTDR board Theseterminals are used to conn
171. mps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using nor bleed expansion valve refrigerant metering device 5 Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device 21 ACCESSORIES SSX14 mm ET ET 55 14 D 042 RON esu esit posene mw L L L L L L 271 x pow pv L SO ASX14 ue pim ASX14 us pue Description m 2 eur paese Emu 02027200 x x x pensat x mw 7 pow 1 Installed on indoor 2 Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy 3 Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require th
172. n Ready PRODUCT TYPE C Condenser R 22 H Heat Pump R 22 X Condenser R 410A Z Heat Pump R 410A MAJOR REVISION A Initial Release NOMINAL CAPACITY 024 2 Tons 036 3 Tons 048 4 Tons 060 5 Tons ELECTRICAL 1 208 230V 1ph 60Hz 3 208 230wW3ph 60Hz 4 460v 3ph 60Hz PRODUCT IDENTIFICATION EXPANSION REVISION PRODUCT PENCE TYPE F Flowrater C Indoor Coil REFRIGERANT CHARGE 6 R 410A or R 22 CABINET FINISH 2 R 22 U Unpainted 4 R 410a P Painted N Unpainted Case NOMINAL WIDTH FOR GAS FURNACE A Fits 14 Furnace Cabinet APPLICATION B Fits 17 1 2 Furnace Cabinet Upflow Downflow Coil C Fits 21 Furnace Cabinet H Horizontal A Coil D Fits 24 1 2 Furnace Cabinet S Horizontal Slab Coil N Does Not Apply Horizontal Slab Coils NOMINAL CAPACITY RANGE 13 SEER 1824 1 1 2 to 2 Tons 3030 2 1 2 Tons 3636 3 Tons 3642 3 to 3 1 2 Tons 3743 3 to 3 1 2 Tons 4860 4 amp 5 Tons 4961 4 amp 5 Tons 16 PRODUCT IDENTIFICATION DESIGN SERIES MB Modular Blower ELECTRICAL SUPPLY 1 208 230V 60hZ 1 ph FACTORY HEAT 00 No Heat DESIGN SERIES MOTOR TYPE R Constant Speed E Variable Speed CIRCUIT BREAKER A No Circuit Breaker B Circuit Breaker AIRFLOW DELIVERED 08 800 CFM 12 1200 CFM 16 1600 CFM 20 2000 CFM ComfortNet mej v Le 12 Loo DESIGN SERIES MB Modular Blower FACTORY HEAT DESIGN SERIES 00 N
173. n energize W2 and 24Vac will be supplied to HR2 on the heater assembly and the blower motor will change to high speed When the W2 demand is satisfied the room thermostat will remove the 24Vac from W2 and the VSTB will remove the 24Vac from HR2 The contacts on HR2 will open between 3010 70 seconds and heater elements and 4 will be turned off and the blower motor will change to low speed On most digital electronic thermostats W2 will remain energized until the first stage demand W1 is satisfied and then the W1 and W2 demands will be removed 2 3 When the W1 heat demand is satisfied the room thermostat will remove the 24Vac from E W1 and the VSTB removes the 24Vac from HR1 The contacts on HR1 will open between 30 to 70 seconds andturn off the heater element s and the blower motor ramps down to complete stop MBE AEPF WITH TWO STAGE ASZ amp DSZ HEAT PUMP UNITS 3 0 Cooling Operation When used with the ASZ amp DSZ two stage heat pumps dip switch 4 mustbe setto the OFF position on the VSTB inside the MBE AEPF The Y1 output from the indoor thermostat must be connected to the purple wire labeled Ylow Y1 inside the wire bundle marked Thermostat and the purple wire labeled Ylow Y1 insidethe wire bundle marked Outdoor Unit mustbe connectedto Y atthe heat pump Y2 output from the indoor thermostat must be connected to the yellow wire labeled Y Y 2 inside the wir
174. n check subcooling d _ If subcooling is high and superheat is low adjust TXV valve to 7 to 9 F superheat and remove charge to lower the subcooling to 7 2 F The should NOT be adjusted at light load conditions 55 to 60 F under such conditions only the subcooling can be evaluated This is because suction pressure is dependent on the indoor coil match indoor airflow and wet bulb temperature NOTE Do NOT adjust charge based on suction pressure unless there is a gross undercharge 4 Disconnect manifold set Installation is complete S 109 CHECKING SUBCOOLING Refrigerant liquid is considered subcooled when its tempera ture is lower than the saturation temperature corresponding to its pressure The degree of subcooling equals the degrees of temperature decrease below the saturation temperature at the existing pressure 1 Attach an accurate thermometer or preferably thermo couple type temperature tester to the liquid line as it leaves the condensing unit 2 Install a high side pressure gauge on the high side liquid Service valve atthe front of the unit 3 Record the gauge pressure and the temperature of the line 4 Review the technical information manual or specification sheet for the model being serviced to obtain the design subcooling 5 Comparethe hi pressure readingto the Required Liquid Line Temperature chart page 43 Find the hi pressure value on the left column Follow that line right to th
175. n ofthe selected ramping profile The ECM blower motor is then de energized 2 0 Heating Operation 2 1 Onademand for low stage heat pump heating the room thermostat closes the G and Y1 contacts providing 24VAC tothe G and 1 terminals atthe integrated air handler control The integrated AH control initiates the heat pump heating ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control operates the variavble speed ECM motor atthe low stage heat pump airflow 2 2 The low stage compressor and condensor fan motor speeds are energized by the closing of the thermostat Y1 contacts 2 3 The system operates at low stage heat pump heating 2 4 f the thermostat demand cannot be met with low stage heat pump heating the thermostat will close the Y2 contacts providing 24VAC to the Y2 terminals at the integrated AH control and heat pump Thermostat G and Y1 contacts remainclosed The air handler control operates the ECM blower motor at the high stage heat pumpheating airflow 2 5 The system operates at high stage heat pump heating 2 6 If the thermostat demand cannot be met with high stage heat pump heating the thermostat will close the W1 We contacts providing 24VAC tothe W1 or W1 and SERVICING We terminals atthe integrated AH control Thermostat Y1 and Y2 contacts remain closed 2 7 Upon receiving a demand for auxiliary heat the
176. nd Y Y2 ofthe MBE AEPF The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings of dip switch 1 and 2 The VSTB will supply 24Vac to Y at the heat pump and the heat pump is turned on the heating mode 4 2 If the first stage heat demand cannot be satisfied by the heat pump thetemperature indoors will continue to drop The room thermostat will then energize terminal W2 for second stage heat and 24Vac will be supplied to E W1 of the MBE AEPF The VSTB will supply 24Vac to heat sequencer HR1 on the electric heater assembly 4 3 HR1 contacts M1 and M2 will close within 10 to 20 seconds and turn on heater element 1 At the same time if the heater assembly contains a second heater element HR1 will contain a second set of contacts M3 and which will close to turn on heater element 2 Note If more than two heater elements are on the heater assembly it will contain a second heat sequencer HR2 which will control the and 4 heater elements if available For the 3 and 4 heater elements to operate on a third stage heat demand the PJ4 jumper on the VSTB inside the MBE AEPF must be cut the second stage heat demand W2 cannot be satisfied by the heat pump the temperature indoors will continue to drop The room thermo stat will then energize W3 and 24Vac will be supplied to W W2 of the MBE AEPF The VSTB will supply 24Vac
177. nd signal is intermittent Flash Code 3 Compressor is running 2 Time delay relay or control board defective only briefly 3 If high pressure switch present go to Flash Code 2 information 4 If low pressure switch present go to Flash Code 1 information Yellow ALERT Locked Rotor 1 Run capacitor has failed Flash Code 4 2 Low line voltage contact utility if voltage at disconnect is low 3 Excessive liquid refrigerant in compressor 4 Compressor bearings are seized Yellow ALERT Open Circuit 1 Outdoor unit power disconnect is open Flash Code 5 2 Compressor circuit breaker or fuse s is open 3 Compressor contactor has failed open 4 High pressure switch is open and requires manual reset 5 Open circuit in compressor supply wiring or connections 6 Unusually long compressor protector reset time due to extreme ambient temperature 7 Compressor windings are damaged Yellow ALERT Open Start Circuit 1 Run capacitor has failed Flash Code 6 Current only in run circuit 2 Open circuit in compressor start wiring or connections 3 Compressor start winding is damaged Yellow ALERT Open Run Circuit 1 Open circuit in compressor run wiring or connections Flash Code 7 Current only in start circuit 2 Compressor run winding is damaged Yellow ALERT Low Voltage 1 Control circuit transformer is overloaded Flash Code 9 Control circuit 17 2 Low line voltage contact utility if voltage at disconnect is low Flash Code number corresponds to
178. nder lower pressure a refrigerant will absorb heat and vaporize at a low temperature The vapors may be drawn off and condensedata higher pressure and tempera ture to be used again The indoor evaporator coil functions to cool and dehumidify the air conditioned spaces through the evaporative process taking place within the coil tubes NOTE The pressures and temperatures shown in the refrigerant cycle illustrations on the following pages are for demonstration purposes only Actual temperatures and pres sures are to be obtained from the Expanded Performance Chart Liquid refrigerant at condensing pressure and temperatures 270 psig and 122 F leaves the outdoor condensing coil through the drier and is metered into the indoor coil through the metering device As the cool low pressure saturated refrigerant enters the tubes of the indoor coil aportion of the liquid immediately vaporizes It continues to soak up heat and vaporizes as it proceeds through the coil cooling the indoor coil down to about 48 Heatis continually being transferred to the cool fins and tubes of the indoor evaporator coil by the warm system air This warming process causes the refrigerant to boil The heat removed from the air is carried off by the vapor As the vapor passes through the last tubes of the coil it becomes superheated Thatis it absorbs more heat thanis necessary to vaporize it This is assurance that only dry gas will reach the compressor
179. nents T A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduces 13 SEER Dayton wall AWUF 1AA mount air handlers A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduces 13 SEER Dayton wall AWUF 16AA mount air handlers All Models will be suitable for use with R 22 and R 410A AWUF3005 101AA A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduces 13 SEER Dayton wall mount air handlers using a Burr Oak Louvered Fin coil Single Piece Air Handler Wall Mount Unpainted Flowrator Revision replaces current wavey AWUF 1BA fin design with new louvered fin design A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduction of AWUF37 Air Handlers for use with R 22 R410A AEPF313716AA ASPF313716AA 10 PRODUCT IDENTIFICATION Single Piece Air Handlers A Single Piece Air Handler Ceiling Mount N Uncased Flowrater Revision has AWUF 16BA m AO a louver fins amp replaces copper tube hairpins with aluminum hairpins AW UF 180316BA AW UF240316BA AW UF300316BA AW UF310516AA AW UF310816AA AW UF321016AA A Single Piece Air Handler Wall Mount Unpainted Flowrator AWUF 3KW Heater Introduction Introduction of 3KW heater the AWUF air handlers A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduction of higher 14 SEER AWUF series air handlers AVPTC183014AA A Single Piece V Multi Position Variable Speed Pa
180. ng heaters be sure all heating elements are energized Locked Rotor Voltage is the actual voltage available at the compressor during starting locked rotor or a stalled condition Measured voltage should be above minimum listed in chart below To measure Locked Rotor Voltage attach a voltmeter to the run R and common C terminals ofthe compressor ortothe T and T terminals of the contactor Start the unit andallow the compressorto run for several seconds then shut down the unit Immediately attempt to restart the unit while measuring the Locked Rotor Voltage ComfortNet Ready Condensing Units To measure the Locked Rotor Voltage attach a voltmeter to the run R and common C terminals of the compressor or acrosss the R and C lugs on the unitary UC control Start the unit and allow the compressor to run for several seconds then shut down the unit Immediately attempt to restart the unit while measuring the Locked Rotor Voltage Locked rotor voltage should read within the voltage tabu lation as shown If the voltage falls below the minimum voltage check the line wire size Long runs of undersized wire can cause low voltage If wire size is adequate notify the local power company in regard to either low or high voltage UNIT SUPPLY VOLTAGE VOLTAGE NOTE When operating electric heaters on voltages other than 240 volts refer to the System Operation section on electric heaters to calculate temperature rise
181. ng terminal withoutthe presence of an external ignition source Therefore proper evacuation of a hermetic system is essential at the time of manufacture and during servicing Toreduce the possibility of external ignition all open flame electrical power and other heat sources should be extin guished or turned off prior to servicing a system If the following test indicates shorted grounded or open windings see procedures S 19forthe nextsteps to be taken S 17A RESISTANCE TEST Each compressor is equipped with an internal overload Theline break internal overload senses both motor amperage and winding temperature High motortemperature or amper age heats the disc causing itto open breaking the common circuit within the compressor on single phase units Heat generated within the compressor shell usually due to recycling of the motor high amperage or insufficient gas to cool the motor is slow to dissipate Allow at least three to four hours for it to cool and reset then retest Fuse circuit breaker ground fault protective device etc has not tripped 78 AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Remove the leads from the compressor terminals A WARNING See warnings S 17 before removing compressor terminal cover 2 Using an ohmmeter tes
182. ng valve is energized during a cooling acycle The call for cooling from the communicating thermostat indicates to the control that the reversing valve is to be energized during cooling operation DEFROST CYCLE LEGACY MODELS The defrosting of the outdoor coil is jointly controlled by the defrost control board and the defrost thermostat Solid State Defrost Control During operation the power to the circuit board is controlled by atemperature sensor which is clamped to a feeder tube entering the outdoor coil Defrost timing periods of 30 60 or 90 minutes may be selected by connecting the circuit board jumper to 30 60 or 90 respectively Accumulation of time for the timing period selected starts when the sensor closes approximately 31 F and when the room thermostat calls for heat At the end of the timing period the unit s defrost cycle will be initiated provided the sensor remains closed When the sensor opens approximately 75 F the defrost cycle is terminated and the timing period is reset If the defrost cycle is not terminated due to the sensor tempera ture aten minute override interrupts the unit s defrost period DEFROST CYCLE COMFORTNET MODELS The defrosting of the outdoor coil is jointly controlled by the UC PCB and the outdoor coil temperature OCT sensor The OCT sensor is clamped to a feeder tube entering the outdoor coil Defrost timing periods of 30 60 90 or 120 minutes may be selected via the
183. noid is not energized and 10096 capacity when the solenoid is energized The loading and unloading of the two step scroll is done on the fly without shutting off the motor between steps See Figure C below The unloaded mode default was chosen for two reasons Molded Plug Pm N Line Run Capacitor Internal Unloader Coil 24 VAC Rectifier is integrated on the UC PCB FIGUREC 1 Itis expected that the majority of run hours will be in the low capacity unloaded mode 2 Itallows asimpletwo stage thermostatto control capac ity through the second stage in both cooling and possibly heating if desired UNLOADER SOLENOID A nominal 24 volt direct current coil activates the internal unloader solenoid The input control circuit voltage must be 18 to 28 volt ac The coil power requirement is 20 VA The external electrical connection is made with a molded plug assembly This plug is connected to the Communicating Unitary Control PCB UC PCB which contains a full wave rectifier to supply direct current to the unloader coil 39 SYSTEM OPERATION COOLING The refrigerant used in the system is R 410A It is a clear colorless non toxic and non irritating liquid R 410A is a 50 50 blend of R 32 and R 125 The boiling point at atmo spheric pressure is 62 9 F A few of the important principles that make the refrigeration cycle possible are heat always flows from a warmer to a cooler body U
184. nstalled access fitting BULB TO BE LOCATED AT 10 OR 2 O CLOCK 4 SUCTION LINE EXPANSION VALVE EVAPORATOR COIL Se SEAL SUPPLIED W KIT REMOVE BEFORE INSTALLING SEAL SUPPLIED W KIT EXPANSION VALVE 7 8 NUT OT EHR18 60 OUTDOOR THERMOSTAT amp EMERGENCY HEAT RELAY OT18 60 Not for use with ComfortNet System ACCESSORIES FSK01A FREEZETHERMOSTAT KIT Wire Nut Install Line Thermostat Here Install Line Thermostat __ Wire Nut NAO ASCO1A Not for use with ANTI SHORT CYCLE CONTROL KIT ComfortNet System SHORT CYCLE PROTECTOR UNIT TERMINAL BOARD ACCESSORIES COIL ACCESSORIES cares fx ox 4 7 0 277 x E C eero C eere LL X LX X LX I escrow S LX X t x gt lt HKR SERIES ELECTRIC HEAT KITS ELECTRIC HEATKIT APPLICATIONS MBR MBE MBVC ELECTRIC HEAT KIT EN NM GN NE ENS NE perum m ees Hee rmx mls xg rq sg xe pe
185. nt pressure of the superheat spring in the valve 096 bleed type expansion valves are used on indoor and outdoor coils The 0 bleed valve will not allow the system pressures High and Low side to equalize during the shut down period The valve will shut off completely at approxi mately 100 PSIG 30 bleed valves used on some other models will continue to allow some equalization even thoughthe valve has shut off completely because of the bleed holes within the valve This type of valve should not be used as a replacement for 0 bleed valve due to the resulting drop in performance The bulb mustbe securely fastened with two straps to aclean straight section of the suction line Application of the bulb to a horizontal run of line is preferred Ifa vertical installation cannot be avoided the bulb must be mounted so that the capillary tubing comes out at the top THE VALVES PROVIDED BY GOODMAN ARE DESIGNED TO MEET THE SPECIFICATION REQUIREMENTS FOR OPTIMUM PRODUCT OPERATION DO NOT USE SUB STITUTES S 106 OVERFEEDING Overfeeding by the expansion valve results in high suction pressure cold suction line and possible liquid slugging of the compressor If these symptoms are observed 1 Check for an overcharged unit by referring to the cooling performance charts in the servicing section 2 Check the operation of the power elementinthe valve as explained in S 110 Checking Expansion Valve Operation 3 Check for restricted or
186. o Heat A First Series COMMUNICATION FEATURE C 4 wire Communication Ready CIRCUIT BREAKER A No Circuit Breaker B Circuit Breaker ELECTRICAL SUPPLY 1 208 230V 60HZ 1 phase AIRLOW DELIVERED MOTOR TYPE 12 1200 CFM V Variable Speed 16 1600 CFM 20 2000 CFM PRODUCT IDENTIFICATION EXPANSION PRODUCT DEVICE TYPE F Flowrater A Air Handler T TXV Expansion Device CABINET FINISH U Unpainted P Painted N Uncased APPLICATION MINOR REVISION MAJOR REVISION REFRIGERANT CHARGE No Digit R 22 Only 6 R 410A or R 22 C Ceiling Mount PSC Motor ELECTRICAL D Downflow PSC Motor 1 208 230V 1ph 60Hz E Multi Position Varible Speed Motor S Energy Efficient Motor R Multi Position PSC Motor T Coated Coils W Wall Mount PSC Motor NOMINAL CAPACITY RANGE 13 SEER Dedicated Application 3636 3 Tons Multi Position amp Downflow Applications Ceiling Mount amp Wall Mount Applications 3137 3 Tons Nominal Cooling Capacity Electric Heat kW 3642 3 3 1 2 Tons 1803 1 1 2 Tons Cooling 3 kW Electric Heat 1830 1 1 2 3 1 2 Tons 1805 10 SEER 2405 1729 1 1 2 2 1 2 Tons for export systems 3608 3105 3210 3705 3708 3710 1 1 2 Tons Cooling 5 kW Electric Heat 2 Tons Cooling 5 kW Electric Heat 3 Tons Cooling 8 kW Electric Heat 1 5 2 5 Tons Cooling 5kW Electric Heat 2 2 5 Tons Cooling
187. o eliminate compressor noise during the reversing valve shift The compressor will energized or re energized at high stage 4 3 The UC control sends a request for defrost operation to the integrated air handler control The air handler control energizes the electric heat sequencer outputs and oper ates the ECM blower model at the electric heat speed 4 4 Once the defrost cycle is terminated the heat pump commands the air handler modular blower to end defrost operation 4 5 The system returns to heat pump heating operation that was in effect prior to the defrost cycle 5 0 Emergency Heat Operation 5 1 The CTKO1AA thermostat sends a request for emer gency heatto the air handler modular blower 5 2 The air handler control energizes the ECM blower motor at the emergency heat speed The electric heat se quencer outputs are also energized thus energizing the electric heaters 5 3 The system operates at emergency heat 5 4 Once the thermostat demandis satisfied the CTKO1AA thermostat commands the air handler modular blower to end emergency heat operation The air handler control de energizes the electric heat sequencer outputs The ECM blower motor remains energized until any blower OFF delay timing has expired energizes the variavble speed ECM motor atfan demand provided by the thermo stat The fan demand provided by the thermostat will be 30 50 70 of the air handler s maximum airflow capability The continuous fan
188. odel Number MOD NUM Displays the model number Serial Number SER NUM Displays the serial number Optional Software SOFTWARE Displays the application software revision SET UP User Modifiable Options Heat Airflow Trim HT 1096to 10 in 2 increments Trims the electric heating airflow by the TRM default is 0 selected amount STATUS Indication for Display Only not User Modifiable Mode MODE Displays the current operating mode CFM CFM Displays the airflow for the current operating mode 51 SERVICING ASXC ASZC DSXC DSZC ApvaNcED User Menus 52 CONFIGURATION Submenultem ____ Indication for Display Only not User Modifiable Number of AC Stages CL STG Displays the number of air conditioning stages applies to AC and Number of HP Stages HT STG Displays the number of heat pump stages applies to HP only AC Tonnage TONS Displays the air conditioning tonnage applies to AC and HP DIAGNOSTICS Indication User Modifiable Options Most recent AC HP fault ext most recent AC HP fault ext most recent AC HP fault ext most recent AC HP fault ext most recent AC HP fault Least recent AC HP fault Comments LS JW Fault 1 FAULT 1 Fault 2 FAULT 2 Fault 3 FAULT 3 Fault 4 FAULT 4 Fault 5 FAULT 5 For display only Fault 6 FAULT 6 For display only Clear Fault History CLEAR NO or YES 2 YES clears the fault For display only For display only For display only For d
189. ol forthe ASXC ASZC and DSXC DSZC models is fully integrated into the UC control The control supports one or two speed PSC condenser fan motors and one or two speed ECM condenser fan motors The fan motoris controlled by two on board relays Connec tion to the fan motor is via a 6 circuit plug connector Wiring 56 to the connector is dependant upon the type of condenser fan motor used See unit wiring diagram for details CHECKING RELAY CONTACTS PSC FAN MOTOR AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect motor leads from 6 circuit fan motor wire harness 2 Connect a voltmeter between circuit 3 and circuits 2 low speed or 1 high speed NOTE Circuit 3 is connected directly to L2 3 Energize the system at low or high stage A WARNING YI Line Voltage now present 4 The measured voltage between circuit 3 and circuits 2 or 1 should be approximately OVAC which indicates the relay contacts are closed A voltage measurement of approximately 115VAC indicates the relay is open Re place the control if the relay checks open when it should be closed See notes and cautions below NOTE Ensure any ON delays have expired before making voltage measurements CAUTION Prolonged operation with the condenser fan motor disconnected will cause the hi
190. oltage as described the ECM power headis defective and must be replaced SERVICING 39Vd LX3N NO LHVHO peyoedxeun eonpoud pue 1onpoJd spioA 041u09 1010Uu Buom Burst 91O0N 9 peeds ejqeueA N23 941 Ajeuornounj ayie Yoo Burejedo oyloads 10 BOUIS 1984100 eui esn noA 91oN sionn nue 101 WANA UONW 001 MOI 101 gt ureip 1 doo dup eBueuy jueuudinbe Aq se 10 SJOJOBUUOD 393949 enisioW peeds Ja 1994109 1sn p y Su01 911 S 1 JONP 12 1102 42 0 peeds 12 1102 ed 440 19 eoejdoeJ 429u2 Mjonp 10 Addns 12911002 Duijjnd S s0yly ALP 10 10 jaued peeds W49 e Sjjnd 10 S UnH
191. oltage now present 1 Set fan selector switch at thermostat to ON position 2 With voltmeter check for 24 volts at wires C and G 3 No voltage indicates the trouble is in the thermostat or wiring 4 Checkthe continuity ofthe thermostat and wiring Repair or replace as necessary Resistance Heaters 1 Set room thermostat to a higher setting than room temperature so both stages call for heat 2 With voltmeter check for 24 volts at each heater relay Note BBA BBC heater relays are DC voltage 3 No voltage indicates the trouble is in the thermostat or wiring 4 Checkthe continuity ofthe thermostat and wiring Repair or replace as necessary NOTE Consideration must be given to how the heaters are wired O D T and etc Also safety devices must be checked for continuity S 3B COOLING ANTICIPATOR The cooling anticipator is a small heater resistor in the thermostat During the off cycle it heats the bimetal element helping the thermostat call for the next cooling cycle This prevents the room temperature from rising too high before the system is restarted A properly sized anticipator should maintain room temperature within 1 1 2 to 2 degree range The anticipator is supplied in the thermostat and is notto be replaced If the anticipator should fail for any reason the thermostat must be changed S 3C HEATING ANTICIPATOR The heating anticipator is a wire wound adjustable heater which is energized during
192. ontact 56 Copeland Comfort Alert Diagnositics 59 Checking Loss of Charge Protector 66 Checking High Pressure Control 66 Checking Low Pressure Control 66 Checking 66 Resistance 67 Capacitance 67 Checking Fan amp Blower Motor Windings PSC Motors 68 Checking Fan amp Blower Motor ECM Motors 68 Checking ECM Motor Windings 71 ECM CFM Adjustments 71 Blower Performance Data 73 Checking GE X13 Motors 73 Emerson UltraTech ECM Motors 74 AVPTC MBVC ECM CFM Adjustments 76 Checking Compressor Windings 78 Resistance 78 Ground TSE M IET 78 Unloader 79 Operation Test 79 Checking 3 Scroll Compressor Rotation 80 Testing Crankcase Heater optional item 80 Checking Reversing Valve and Solenoid 80 S 52 Testing 80 5 52 Testing Defrost Thermostat 81 S 26 Testing Temp Sensors ComfortNet Re
193. operation Reset ALERT Flash code by removing 24VAC power from module Last ALERT Flash code is displayed for 1 minute after module is powered on 57 SERVICING DIAGNOSTICS TABLE 2 WIRE COMFORT ALERT MODULE Status LED Status LED Description Status LED Troubleshooting Information Green POWER Module has power Supply voltage is present at module terminals Red TRIP Thermostat demand signal 1 Compressor protector is open Y1 is present but the 2 Outdoor unit power disconnect is open compressor is not 3 Compressor circuit breaker or fuse s is open running 4 Broken wire or connector is not making contact 5 Low pressure switch open if present in system 6 Compressor contactor has failed open Yellow ALERT Long Run Time 1 Low refrigerant charge Flash Code 1 Compressor is 2 Evaporator blower is not running running extremely 3 Evaporator coil is frozen long run cycles 4 Faulty metering device 5 Condenser coil is dirty 6 Liquid line restriction filter drier blocked if present in system 7 Thermostat is malfunctioning Yellow ALERT System Pressure Trip 1 High head pressure Flash Code 2 Discharge or suction 2 Condenser coil poor air circulation dirty blocked damaged pressure out of limits or 3 Condenser fan is not running compressor overloaded 4 Return air duct has substantial leakage 5 If low pressure switch present in system check Flash Code 1 information Yellow ALERT Short Cycling 1 Thermostat dema
194. or heat the contacts of the room thermostat close making terminals R to Y amp G the low voltage circuit of the transformer is completed Current now flows through the magnetic holing coils of the compressor contactor CC and fanrelay RFC This draws in the normally open contact CC starting the compressor condenser fan motors At the same time contacts RFC close starting the indoor fan motor When the thermostat is satisfied it opens its contacts breaking the low voltage circuit causing the compressor contactor and indoor fan relay to open shutting down the system If the room thermostat fan selector switch should be set to the position then the indoor blower would run continu ously rather than cycling with the compressor For communicating room thermostat When the room ther mostat calls for either low stage heat or high stage heat appropriate commands are sent via the data 1 and data 2 lines to the outdoor unit s UC control The UC control energizes the on board compressor relay and the on board outdoor fan relay The compressor high stage solenoid is energized if it is a high stage call The UC control sends fan command tothe indoor unit air handler or furnace The indoor unit operates the indoor blower at the appropriate airflow level The system operates at the cooling level demanded by the thermostat When the thermostat is satisfied appropriate commands are sent to the UC control The compressor r
195. ower and listen for another click as the unloader returns to its original position 3 If clicks can t be heard shut off power and remove the control circuit molded plug from the compressor and measure the unloader coil resistance The resistance should be 32 to 60 ohms depending on compressor temperature 4 Next check the molded plug A Voltage check Apply control voltage to the plug wires 18to 28 voltac The measured dc voltage at the female connectors in the plug should be around 15 to 27 vdc B Resistance check Measure the resistance from the end of one molded plug lead to either of the two female connectors in the plug One of the connec tors should read close to zero ohms while the other should read infinity Repeat with other wire The same female connector as before should read zero while the other connector again reads infinity Reverse polarity on the ohmmeter leads and re peat The female connector that read infinity pre viously should now read close to zero ohms C Replace plug if either of these test methods doesn t show the desired results S 17D OPERATION TEST If the voltage capacitor overload and motor winding test fail to show the cause for failure d WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Removeunitwiring from disconnectswitch
196. peeu Jr 20 1221002 uonirpuoo Beo MO PANQ e epoo pareorpur awd Sunes s TqrTsurejs onsouserp OVA uo payioads se Addns e npour e CI ue sso Beo Jo od oj payoeuuoo 22 pue 5 QUT JOIUOD e STUN e ou JI JAO uedo eq 205 e sosny pue TOA BUPA mosad soyse Hy A euru aq 01 JJO 1owoduin e siayeaig yoy e 980 0 OUI e 80 J3NI1AOT eur MOT e NO J40 8 dJO Jeodde dund e 295 10 TOU OTIDUO 3 290 5110125 WEU Peun ruo 21 10 JE WISU PY pareorpur erds p s Tq smeys onsouseip Sed quau dar o3yuoo Panos e se Zum Jossoidtuos Kq neq e usm pq YIM souim 0 O VAT Sutpoko Sum JID e po sey Aq yn y LAPIN e gt e JAO peso o 5 se uado X201 10207 iuosaid SouseH eunssoud ysry pue amssaid Joud 1owod uin e
197. power ON provide a call for cool or heat pump to energize the on board compressor contactor relay WARNING YI Line Voltage now present 3 Measure voltage across on boardcompressor contactor relay contacts 55 SERVICING A No voltage indicates the contacts are closed and the contactor relay is functioning properly B A reading of approximately half of the supply voltage example 115VAC for 230VAC indicates the relay is open Replace UC control if relay does not close NOTE The unitary UC control has a built in short cycle delay Ensure short cycle delay has elapsed before making voltage measurements S 9 CHECKING FAN RELAY CONTACTS AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect wire leads from terminals 2 and 4 of Fan Relay Cooling and 2 and 4 5 and 6 of Fan Relay Heating 2 Using an ohmmeter test between 2 and 4 should read open Test between 5 and 6 should read continuous 3 With power ON energize the relays A WARNING YI Line Voltage now present TESTING FAN RELAY 4 Using an ohmmeter test between 2 and 4 should read continuous Test between 5 and 6 should read open 5 If not as above replace the relay FAN RELAY CONTACTS UNITARY UC CONTROL Applies to ASXC ASZC and DSXC DSZC Models Condenser fan contr
198. pressor Deluxe Split X Communicating condensing units 18 Seer R410A condensing units DSXC18 1AA Introduces Goodman 2 stage 18 SEER condensing units with R 410A communicating models Value Split X condensing units 13 Seer 410 condensing units Introduces Value Line 13 SEER condensing units with 41 0 VSX130181BA Value Split X condensing units 13 Seer R410A condensing units Introduces Value Line 13 SEER 1 5 ton condensing units with R 410A with rotary compressors VSX130601BA Value Split X condensing units 13 Seer R410A condensing units Introduces Value Line 13 SEER condensing units with R 410A using SmartCoil coils DSX160 24 amp 36 1 PRODUCT IDENTIFICATION Split System Air Conditioners R410A Model Description ASX130 4AA Amana Brand Split X Condenser 13 Seer condensing units Initial release new models of Amana Brand Deluxe 13 SEER AC R410A conditioners Amana Brand Split X Condenser 13 Seer condensing units Introduction of Amana 5 130 1 Brand 13 SEER R 410A Condensers using SmartCoil coils Units will have new louvers since units are smaller Piston size change other components unchanged Amana Brand Split X Condenser 14 Seer condensing units Initial release new models of Amana Brand Deluxe 14 SEER AC R410A conditioners Amana Brand Split X Condenser 14 Seer condensing units New revisions have screw ASX140 1AB one locations moved in the top pan
199. pressor Contactor Electronic Control Board Defrost or Time Delay High Temperature Cut Out Switch High Pressure Cut Out Switch LPCO Low Pressure Cut Out Switch ECB Wiring Schematic 2 Wire Comfort Alert Module Green power LED indicates voltage is present at the power connection of the module Yellow alert LED flashes to indicate fault code Red trip LED indicates if compressor is tripped or has no power 60 Ms BS AN 4 SS M WM Compressor COPELAND COMFORT ALERT UNITARY UC CON TROL DIAGNOSTICS Applies to ASXC ASZC DSXC and DSZC models AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death The Copeland Comfort Alert diagnostics are fully integrated into the unitary UC control The UC control and integraged Comfort Alert diagnostics provide around the clock moni toring for common electrical problems compressor defects and broad system faults If a problem is detected LED indicators flash the proper alert codes to help you quickly pinpoint the problem The diagnostic tables on following pages provide detailed information regarding the system symptons indicators LED and thermostat potential problem s and corrective ac tions The diagnostic information applies
200. r R to C 3 No voltage indicates faulty transformer bad wiring or bad splices 4 Checktransformer primary voltage at incoming line volt age connections and or splices 5 If line voltage available at primary voltage side of trans former and wiring and splices good transformer is inop erative Replace S 5 CHECKING CYCLE PROTECTOR Some models feature a solid state delay on make after break time delay relay installed in the low voltage circuit This control is used to prevent short cycling of the compressor under certain operating conditions The component is normally closed R to Y A power interruption will break circuit R to Y for approximately three minutes before resetting 1 Remove wire from Y terminal 2 Wait for approximately four 4 minutes if machine was running 54 With power ON WARNING Line Voltage now present 1 Apply 24 VAC to terminals R and R 2 Should read 24 VAC at terminals and 3 Remove 24 at terminals R and R 4 Should read 0 VAC at Y and Y 5 Reapply 24 VAC to R1 and R2 within approximately three 3 tofour 4 minutes should read 24 VAC at Y and If not as above replace relay S 6 CHECKING TIME DELAY RELAY Time delay relays are used in some of the blower cabinets to improve efficiency by delaying the blower off time Time delays are also used in electric heaters to sequence in multiple electric heaters WARNING
201. r from the diagnostic tool into the motor control connector 4 Connect one alligator clip from the diagnostic tool to a ground source 5 Connect the other alligator clip to a 24VAC source NOTE The alligator clips are NOT polarized NOTE The UltraCheck EZ diagnostic tool is equipped with anonreplaceable fuse Connecting the tool to a source other than 24VAC could damage the tool and cause the fuse to open Doing so will render the diagnostic tool inoperable 6 Turn on power to air handler or modular blower WARNING YI Line Voltage now present 7 Depress the orange power button on the diagnostic tool to send arun signal to the motor Allow up to 5 seconds for the motor to start NOTE Ifthe orange power button does notilluminate when depressed the tool either has an open fuse oris not properly connected to a 24VAC source 8 The green LED on the diagnostic tool will blink indicating communications between the tool and motor See table below for indications of tool indicators and motor actions Replace or repair as needed Power Green Motor mm indications Confirm 24VAC to Not UltraCheck EZ tool OFF R 4 If 24VAC is confirmed otating diagnostic tool is inoperable Motor and control end Blinking Rotating bell are functioning properly Replace motor ow memo enge Rotating Motor Checks below Replace motor OFF Not control end bell verify Rotating motor see Motor Checks
202. rigerantOvercharge 105 5 114 Non condensables 105 5 115 Compressor Burnout 106 5 120 Refrigerant Piping 106 56 202 Duct Static Pressure amp Static Pressure Drop Across Coils 109 5 203 Air Handler External Static 109 5 204 Coil Static Pressure Drop 109 Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 46 SERVICING S 1 CHECKING VOLTAGE 1 Remove outer case control panel cover etc from unit being tested With power ON WARNING Line Voltage now present 2 3 4 5 Using avoltmeter measure the voltage across terminals L1 andL2 ofthe contactor forthe condensing unitor atthe field connections for the air handler or heaters ComfortNet Ready Condensing Units Measure the voltage acrosss the L1 and L2 lugs on the unitary UC control No reading indicates open wiring open fuse s no power or etc from unit to fused disconnect service Repair as needed With ample voltage at line voltage connectors energize the unit Measure the voltage with the unit starting and operating and determine the unit Locked Rotor Voltage NOTE If checki
203. rmance table in the service manual shows the CFM for the static mea sured Alternately the system CFM can be determined by operating the electric heaters andindoor blower WITHOUT having the compressor in operation Measure the temperature rise as close to the blower inlet and outlet as possible If other than a 240V power supply is used refer to the BTUH CAPACITY CORRECTION FACTOR chartbelow BTUH CAPACITY CORRECTION FACTOR EXAMPLE Five 5 heaters provide 24 0 KW at the rated 240V Our actual measured voltage is 220V and our measured temperature rise is 42 F Find the actual CFM Answer 24 0KW 42 F Rise 240 V 1800 CFM from the TEMPERATURE RISE chart on the right Heating output at 220 V 24 0KW x 3 413 x 84 68 8 MBH Actual CFM 1800 x 84 Corr Factor 1400 CFM NOTE The temperature rise table is for sea level installa tions The temperature rise at a particular KW and CFM will be greater at high altitudes while the external static pressure at a particular CFM will be less TEMPERATURE RISE 240V F SEN gt 9 900 11 17 26 34 30 1100 9 14 21 27 1200 8 19 25 1500 6 10 15 1600 6 9 14 6 5 EZS 5 5 13 NIN i i 49 NINI N A A Co CO PO 3 0 5 BR OW
204. rom its respective connection points and capacitor if applicable 2 Check the continuity between each of the motor leads 3 Touch one probe of the ohmmeter to the motor frame ground and the other probe in turn to each lead If the windings do not test continuous or a reading is obtained from lead to ground replace the motor S 16B CHECKING FAN AND BLOWER MOTOR ECM MOTORS AnECMisan Electronically Commutated Motorwhich offers many significant advantages over PSC motors The ECM has near zero rotor loss synchronous machine operation vari able speed low noise and programmable air flow Because of the sophisticated electronics within the ECM motor some technicians are intimated by the ECM motor however these fears are unfounded GE offers two ECM motor testers and with a VOM meter one can easily perform basic trouble shooting on ECM motors An ECM motor requires power line voltage and a signal 24 volts to operate The ECM motor stator contains permanent magnet As a result the shaft feels rough when turned by hand This 15 a characteristic of the motor not an indication of defective bearings AX WARNING Line Voltage now present Disconnect the 5 pin connector from the motor 2 Using a volt meter check for line voltage at terminals 4 amp 5 at the power connector If no voltage is present 3 Check the unit for incoming power See section S 1 4 Check the control board See section S 40 5 If lin
205. ropeller fan This condenser air is then dis charged out of the top of the cabinet These units are designed for free air discharge so no additional resistance like duct work shall be attached The suction and liquid line connections on present models are of the sweat type for field piping with refrigerant type copper Front seating valves are factory installed to accept the field run copper The total refrigerant charge for a normal installation is factory installed in the condensing unit GSX GSZ ASX ASZ SSX SSZ DSX DSZ VSX and VSZ models are available in 1 1 2 through 5 ton sizes and use R 410A refrigerant They are designed for 208 230 volt single phase applications GSX GSZ 3 models are available 3 4 and5tonsizes and use R 410A refrigerant They are designed for 208 230 volt 3 phase applications GSX GSZ 4 models are available in 4 and 5 ton sizes and use R 410A refrigerant They are designed for 460 volt 3 phase applications ASX ASZ DSX and DSZ R 410A model units use the Copeland Scroll Ultratech Series compressors which are specifically designed for R 410A refrigerant These units also have Copeland ComfortAlert diagnostics GSX GSZ SSX SSZ VSX and VSZ R 410A model units use the Copeland Scroll Ultratech Series compressors which are specifically designed for R 410A refrigerant ASXC ASZC DSXC DSZC models are available in 2 through 5 ton sizes and use R 410A refrigerant They are
206. rt and or Super Boost kits are not approved start assist devices The discharge check valve closes off high side pressure to the compressor after shut down allowing equalization through the scroll flanks Equalization requires only about 1 2 second To prevent compressor from short cycling a Time Delay Relay Cycle Protector has been added to the low voltage circuit RELAY START A potential or voltage type relay is used to take the start capacitor out of the circuit once the motor comes up to speed This type of relay is position sensitive The normally closed contacts are wired in series with the start capacitor and the relay holding coil is wired parallel with the start winding As the motor starts and comes up to speed the increase in voltage across the start winding will energize the start relay holding coil and open the contacts to the start capacitor SERVICING Two quick ways to test a capacitor are a resistance anda capacitance check START CAPACITOR CAPACITOR CONTACTOR HARD START KIT WIRING S 15A RESISTANCE CHECK AX WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Discharge capacitor and remove wire leads AX WARNING Discharge capacitor through a 20 to 30 OHM resistor before handling OHMMETER CAPACITOR TESTING CAPACI
207. s A 40VA 208 230 VAC to 24 VAC transformer mustbe installed in the outdoor unit to provide 24 VAC power to the outdoor unit s electronic control The transformer is included with the kit See kit instructions for mounting and wiring instructions Four wires are required between the indoor unit and thermostat Thermostat CT Compatible Modular Blower Integrated Control Module 40VA Transformer included in CTKO1AA don System Wiring using Two Wires between Furnace and AC HP and Four Wires between Furnace and Thermostat CT Compatible AC HP Integrated Control Module ComrortNet System ADVANCED FEATURES The ComfortNet system permits access to additional system information advanced setup features and advanced diagnostic troubleshooting features These advanced fea tures are organized into a menu structure The menus are accessed and navigated as described below 49 SERVICING ACCESSING AND NAVIGATING THE ADVANCED FEATURES Menus The advanced system features are accessed using the ComfortNet thermostat These advanced features are accessed as follows e OntheCT thermostat Home Screen Display touch the Menu key to display additional key choices e Touch and hold the Installer Config key for approxi mately 3 seconds to enter the Thermostat Options Configuration menu e Touch and hold the Installer Config key again for approximately 3 seconds to enter th
208. s C amp O Meter should read 24 volts skipthis step if system afully communicating system 4 Visually inspect to see that the frost is gradually melting on the coil and the compressor is running 5 Using VOM check for voltage across W2 amp C terminals on the board You should read 24 volts 6 If not as above replace control board 7 Set thermostat to off position and disconnect power before removing any jumpers or wires 5 25 TESTING DEFROST THERMOSTAT LEGACY MODELS ONLY 1 Install a thermocouple type temperature test lead on the tube adjacent to the defrost control Insulate the lead point of contact 2 Check the temperature at which the control closes its contacts by lowering the temperature of the control Part 0130M00009P which is used on 2 and 2 5 ton units should close at 34 F 5 F Part 0130M00001 P which is used on 3 thru 5 ton units should close at 31 F 3 F 3 Check the temperature at which the control opens its contacts by raising the temperature of the control Part 0130M00009P which is used on 2 and 2 5 ton units should open at 60 F 5 Part 0130M00001P which is used on 3 thru 5 ton units should open at 75 F 6 F 4 f not as above replace control 5 26 TESTING TEMPERATURE SENSORS COMFORTNET READY MODELS ONLY ASXC and DSXC ComfortNet ready air conditioner models are factory equipped with an outdoor airtemperature OAT sensor The OAT sensor allows the outdoor air
209. s the temperature indoors increase it will reach a point where the W2 W3 demand is satisfied When this happens the room thermostat will remove the 24Vac from E W1 ofthe MBE AEPF The contacts on HR1 will open between 30 to 70 seconds and turn off the 1 and 2 heater elements If the Y2 demand is present and becomes satisfied the room thermostat will remove the 24Vac from Y Y2 of the MBE and the blower motor will change to 60 of the programmed cfm The VSTB will remove the 24Vac from Y Y2 at the heat pump and the outdoor fan will change to low speed operation The heat pump remains on along with the blower motor because the Y1 demand for first stage heat will still be present 4 6 When the first stage heat demand Y 1 is satisfied the roomthermostat will 24Vac from and Ylo Y1 of the MBE AEPF The VSTB removes the 24Vac from Ylo Y1 atthe heat pump and the compressor and outdoor fan are turned off The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor control 5 0 Defrost Operation On heat pump units when the room thermostat is setto the heating mode the reversing valve is not energized As long as the thermostatis set for heating the reversing 89 SERVICING valve will be in the de energized position for heating except during a defrost cycle 5 1 The heat pump will be on and operating in the heating mode as described the Heat
210. sembly Replace blower assembly into air handler or modular blower 76 S 16H ECM CFM ADJUSTMENTS AVPTC MBVC This section references the operation characteristics of the MBVC models The MBVC models utilize an integrated air handler control The air handler control provides ECM blower motor control and includes all dipswitches neces sary to set up the cooling heat pump and electric airflow characteristics The control has three banks of dipswitches a bank for cooling airflow and trim adjustment a bank for selecting one of 4 enhancement profiles and enabling dehumidification and a bank for selecting the installed electric heater kit size Adjustments are made by selecting the appropriate ON OFF combinations of the dipswitches The dipswitches along with their functions are shown in the figures below Cooling Airflow Dipswitches Used to set the desired cooling airflow Cooling Airflow Speed Tap indicates factory setting Airflow Adjust Dipswitches Used to adjust the airflow 10 Airflow Adjust Taps indicates Airflow Adjust Taps indicates factory sett ing sett ing Ramping Profile Dipswitches Used to select a comfort profile for the cooling mode Cooling Airflow Ramping Profiles indicates factory setting SERVICING Dehumidification Disable Enable Dipswitch Reduces cool ing airflow by 15 when enab
211. sor and outdoor fan motor are de energized The air handler modular blower is commanded to end auxiliary heat operation The air handler control de energizes the electric heat sequencer outputs The ECM blower motor remains energized until any blower OFF delay timing has expired Outdoor Temperature Below the Heat Pump Balance Point 2 1 The CTKO1AA thermostat sends a request for the outdoor air temperature to the heat pump The heatpump returns an outdoor air temperature that is below the balance point temperature Heat pump heating is dis abled 2 2 The CTKO1AA thermostat sends a request for auxiliary heat to the air handler modular blower 2 2 The air handler control energizes the ECM blower motor at the auxiliary heat speed The electric heat sequencer outputs are also energized thus energizing the electric heaters 2 3 The system operates at auxiliary heat 2 4 Once the thermostat demandis satisfied the CTKO1AA thermostat commands the air handler modular blower to end auxiliary heat operation The air handler control de energizes the electric heat sequencer outputs The ECM blower motor remains energized until any blower OFF delay timing has expired 3 0 Continuous Fan Operation 3 1 With ademandfor continuous fan operation the thermostat sends a fan request to the integrated air handler control along with a fan demand The controladjustable via the CTKO1AA thermostat The compressor delay is intended t
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213. t continuity between terminals S R C R andC S onsingle phase units orterminals T2 T2 and T3 on 3 phase units TESTING COMPRESSOR WINDINGS If either winding does not test continuous replace the compressor NOTE Ifanopencompressor is indicated allow ample time forthe internal overload to reset before replacing compres SOr S 17B GROUND TEST If fuse circuit breaker ground fault protective device etc has tripped this is a strong indication that an electrical problem exists and mustbe found and corrected The circuit protective device rating mustbe checked andits maximum rating should coincide with that marked on the equipment nameplate With the terminal protective cover in place it is acceptable to replace the fuse or reset the circuit breaker ONE TIME ONLY to see if it was just a nuisance opening If it opens again DO NOT continue to reset Disconnect all power to unit making sure that all power legs are open 1 DONOT remove protective terminal cover Disconnect the three leads going to the compressor terminals at the nearest point to the compressor 2 Identify the leads and using a Megger Hi Potential Ground Tester or other suitable instrument which puts out a voltage between 300 and 1500 volts check for a ground separately between each of the three leads and SERVICING ground such as an unpainted tube on the compressor Do notuse alow voltage output instrument such as a volt ohmmeter COM
214. t sends a fan request to the integrated air handler control along with a fan demand The control energizes the variavble speed ECM motor at fan demand provided by the thermostat The fandemand provided by the thermostat will be 30 50 or 70 of the air handler s maximum airflow capability The continuous fan demand is set from the thermostat as low medium or high 3 2 Ifthe thermostat demand for continuous fanis removed the thermostat commands the integrated air handler control to end continuous fan operation The integrated AH control immediately de energizes the ECM blower motor AVPTC MBVC with ASZC DSZC Heat Pumpand Communicating Themostat The AVPTC or MBVC air handle modular blower matched with an ASZC or DSZC condensing unit and CTKO1AA communicating thermostat constitute a network The three components or subsystems making up the system commu nicate with one another with information passed between all three components This leads to asomewhat non traditional manner in which the system components receive commands forsystem operation All system commands are routed from the componentthrough the networkto the appropriate desti nation component NOTE Communicating heat pump systems are designed to utilize a balance point temperature The balance point temperature in part controls heat pump operation If the outdoor temperature is below the balance point the heat pumpis disable and only electric h
215. tact when seated in the connec tors Repair or replace as needed 3 Check motor control harness Ensure wires are continu ous and make good contact when seated in the connec tors Repair or replace as needed 4 Check thermostat and thermostat wiring Ensure thermo stat is providing proper cooling heating continuous fan demands Repair or replace as needed 5 Check blower wheel Confirm wheel is properly seated on motor shaft Set screw must be on shaft flat and torqued to 165 in lbs minimum Confirm wheel has no broken or loose blades Repair or replace as needed 6 Ensure motor and wheel turn freely Check for interfer ence between wheel and housing or wheel and motor Repair or replace as needed 7 Check housing for cracks and or corrosion Repair or replace as needed 8 Check motor mounting bracket Ensure mouting bracket is tightly secured to the housing Ensure bracket is not cracked or broken Emerson UltraCheck EZ Diagnostic Tool The Emerson UltraCheck EZ diaganostic tool may be used to diagnose the ECM motor AA WARNING HIGH VOLTAGE Disconnect ALL power before servicing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 74 To use the diagnostic tool perform the following steps 1 Disconnect power to the air handler 2 Disconnect the 4 circuit control harness from the motor 3 Plug the 4 circuit connecto
216. tacts providing 24VAC to the G and Y terminals at the integrated air handler control The integrated AH control initiates the heat pump heating ramping profile after any blower ON delays have expired After completing any blower ON delays and ramping profile the control operates the variavble speed ECM motor at the demanded airflow 2 2 The compressor and condensor fan motor are energized by the closing of the thermostat Y contacts 2 3 The system operates at single stage heat pump heat 2 4 Ifthe thermostat demand cannot be met with heat pump heating the thermostat will close the W1 W2 con tacts providing 24VAC to the W1 or W1 and W2 terminals atthe integrated AH control Thermostat G and Y contacts remain closed 2 5 Upon receiving a demand for auxiliary heat the control determines the appropriate airflow demand for heat pump auxiliary heat operation and operates the ECM blower motor at that airflow demand The control determines which airflow demand is greatest and applies that de mand when operating the ECM blower motor 2 6 The system operates at single stage heat pump heating plus auxiliary heat 2 5 Upon satisfying the thermostat the and Y thermo stat contacts or G Y W1 W 2 contacts open removing 24VAC from the integrated air handler control Theintegrated AH control continuesto operate the ECM blower motorfor an OFF delay period then applies the off portion of the heat pump h
217. ten Bolts Faulty Reversing Valve e Replace Valve or Solenoid 5 21 122 Faulty Defrost Control e elele Test Control S 24 Faulty Defrost Thermostat Test Defrost Thermostat 5 25 Flow rator Not Seating Properly ele Check Flow rator amp Seat or Replace Flow rator S 111 Cooling or Heating Cycle Heat Pump Heating Cycle Only Heat Pump 45 SERVICING 5 1 5 2 5 3 5 5 38 5 3 5 30 5 5 4 5 5 5 6 5 7 5 8 5 8 5 9 5 10 5 11 5 12 5 13 5 15 5 15 5 15 5 16 5 16 5 16 5 160 5 16 5 16 S 16G S 16H S 17 S 17A 5 178 5 17 5 170 S 17E 5 18 5 21 WARNING HIGH VOLTAGE Checking 47 Checking Wiring 47 Checking Thermostat Wiring amp Anticipator 47 Thermostat amp Wiring 2222222 47 Cooling Anticipator 48 Heating 48 Checking Encoded Thermostats 48 ComfortNet Thermostats 49 Checking Transformer amp Control Circuit 54 Checking Cycle Protector 54 Checking Time Delay 54 Checking Contactor and or Relays 55 Checking Contactor Contacts 55 Checking UC Contactor Relay Contacts 55 Checking Fan Relay C
218. the ON cycle to help prevent overheating of the conditioned space The anticipator is a part of the thermostat and if it should fail for any reason the thermostat must be replaced See the following tables for recommended heater anticipator setting in accordance to the number of electric heaters installed S 3D TROUBLESHOOTING ENCODED TWO STAGE COOLING THERMOSTATS OP TIONS TROUBLESHOOTING ENCODED TWO STAGE COOLING THERMOSTATS OPTIONS Thechartbelow provides troubleshooting for either version of the encoded thermostat option This provides diagnostic information for the GMC 18 60 or a conventional two cool two stage heat thermostat with 4005 diodes added as called out in the above section Atestleadorjumper wire can be added from the testterminal to any terminal on the B13682 74 or B13682 71 variable speedterminalboard and provide information through the use ofthe LED lights onthe B13682 71 VSTB control Usingthis chart atechnician can determine if the proper input signal is being received by the encoded VSTB control and diagnose any problems that may be relayed to the output response of the B13682 74 VSTM control ARM QUT TEST FUNCTION SIGNALOUT SIGNAL FAN INDICATION VA 51 LOW SPEED COOL YCON Yi 51 LO SPEED YCON Y Y2HI ERROR CONDITION DIODE ON THERMOSTAT BACKWARDS 51 SPEED COOL YCON Y Y2 2 LO SPEED HEAT W1 HEATER W W
219. the equipment and thermostatis allthatis requiredto operate the system CTKO1AA WIRING NOTE Aremovable plug connector is provided with the control to make thermostat wire connections This plug may be removed wire connections made to the plug and replaced It is strongly recommended that multiple wires into a single terminal be twisted together prior to inserting into the plug connector Failure to do so may result in intermittent operation Typical 18 AWG thermostat wire may be used to wire the system components However communications reliability may be improved by using a high quality shielded twisted pair cableforthe datatransmission lines In either case 100 feet is the maximum length of wire between indoor unit and outdoor unit or between indoor unit and thermostat Foun WinE INDOOR AND WIRING Typical wiring will consist of four wires between the indoor unit and outdoor unit and between the indoor unit and thermostat The required wires are a datalines 1 and 2 b thermostat R 24 VAC hot and 24 VAC common CTKO1AA Thermostat CT Compatible Modular Blower Integrated Control Module CT Compatible AC HP Integrated Control Module System Wiring Using Four Wires Two WiRE OutDoor Four WireE INpooR WIRING Two wires only may be utilized between the indoor and outdoor units For this wiring scheme only the data lines 1 and 2 are required between the indoor and outdoor unit
220. the room thermostat energizes and Y and 24Vacis supplied to terminals and Y Y2 of the MBE AEPF unit The VSTB will turn on the blower motor and the motor will ramp up to the speed programmed in the motor based on the settings of dip switch 5 and 6 The VSTB will supply 24Vacto Y atthe heat pump 3 2 The heat pump is turned on in the cooling mode 3 3 When the cooling demand is satisfied the room thermo stat removes the 24Vac from and Y Y2 ofthe MBE AEPF and the VSTB removes the 24Vac from Y at the heat pump The heat pump is turned off and the blower motor will ramp down to a complete stop based on the time and rate programmed in the motor 4 0 Heating Operation On heat pump units when the room thermostat is set to the heating mode the reversing valve is not energized As long as the thermostatis set for heating the reversing valve will be in the de energized position for heating except during a defrost cycle Some installations may use one or more outdoor thermostats to restrict the amount of electric heat that is available above a preset SERVICING ambient temperature Use of optional controls such as these can change the operation of the electric heaters during the heating mode This sequence of operation does not cover those applications 4 1 On a demand for first stage heat with heat pump units the room thermostat energizes Y and G and 24Vacis supplied to a
221. tity of air If external static pressure is being measured on a furnace to determine airflow supply static must be taken between the A coil and the furnace TOTAL EXTERNAL STATIC 5 204 COIL STATIC PRESSURE DROP 1 Using a draft gauge inclined manometer connect the positive probe underneath the coil and the negative probe above the coil 2 Adirect reading can be taken of the static pressure drop across the coil 3 Consult proper table for quantity of air 109 SERVICING STATIC PRESSURE DROP Ifthe total external static pressure and or static pressure drop exceeds the maximum or minimum allowable statics check forclosed dampers dirty filters undersized or poorly laid out duct work 110 ACCESSORIES WIRING DIAGRAMS HIGH VOLTAGE WARNING DISCONNECT ALL POWER BEFORE SERVICING OR INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE TO DO SO MAY CAUSE PROPERTY DAMAGE PERSONAL INJURY OR DEATH ALL FUEL SYSTEM AFE18 60A CONTROL BOARD POWER SUPPLY gt INPUT POWER FURNACE DEMAND lt 5 SUPPLY OUTPUT BLOWER FAN DEMAND lt OUTPUT POWER SUPPLY INPUT gt W1 FURN W2 HP SECOND STAGE FURNACE DEMAND OUTPUT COMPRESSOR OUTPUT lt SECOND STAGE COMPRESSOR OUTPUT REVERSING VALVE OUTPUT Y2 HP 4 Y2 STAT Y2 FURN POWER SUPPLY OUT TO THERMOSTAT CALL FOR
222. to HR2 on the electric heater assembly When the W3 demand is satisfied the room thermostat will remove the 24Vac from W W2 of the MBE AEPF The contacts on HR2 will open between 30 to 70 seconds and heater elements 3 and 4 will be turned off On most digital electronic thermostats W3 will remain energized until the first stage de mand Y is satisfied and then the Y W2 and W3 demands will be removed 4 4 Asthetemperature indoors increase it will reach a point where the second stage heat demand W2 is satisfied When this happens the room thermostat will remove the 24Vac from E W1 of the MBE AEPF The contacts on HR1 willopen between 30 to 70 seconds and turn off both heater element s The heat pump remains on along with the blower motor because the Y demand for first stage heat will still be present 4 5 When the first stage heat demand Y is satisfied the room thermostat will remove the 24Vac from and Y Y2 of the MBE AEPF The VSTB removes the 24Vac from Y atthe heat pump and the heat pump is turned off The blower motor will ramp down to a complete stop based on the time and rate programmed in the motor control 5 0 DEFROST OPERATION On heat pump units when the room thermostat is set to the heating mode the reversing valve is not energized As long asthethermostatis set for heating the reversing valve will be in the de energized position for
223. to systems wired as 24VAC traditional legacy systems and systems wired as communicating systems with the 1 communicating thermostat SERVICING sued joonoo IM dY e O1DV Arc ax Aq 308 Iny e 440 um e sjed j enoo wdy e 440 Jomod um e sed j enoo ym wdy e 010v Apc ug ofo Aqparegp e PULIOU nnoosuoo Og Jaye AIM JE e 50 Jomod um e Suonne 29 SION FUMIS MOWA poyo e pepeau se eoedogarmdor sois omssaxd pou pepeau se eogdojarmedor spay se spay se nipe Beyo IF YA AJA 1195 HOUI pepeau se yms omssaud pou popou se eogdoyarmdor Jamo Joopur spay se prnby PASAI spay se ysnipe Beyo oU jos SOULIOY psy popou se spat se 1 Spay SUO TV jes e
224. urn to the compressor An evaporator coil using a capillary tube metering device could allow refrigerant to return to the compressor under extreme overcharge conditions Also with a capillary tube metering device extreme cases of insufficient indoor air can cause icing of the indoor coil and liquid return to the compressor but the head pressure would be lower There are other causes for high head pressure which may be found in the Service Problem Analysis Guide If other causes checkout normal an overcharge or a system containing non condensables would be indicated If this system is observed 1 Start the system 2 Remove and capture small quantities of gas from the suction line dill valve until the head pressure is reduced to normal 3 Observethe system while running a cooling performance test If a shortage of refrigerant is indicated then the system contains non condensables 5 114 NON CONDENSABLES If non condensables are suspected shut down the system and allow the pressures to equalize Wait at least 15 minutes Compare the pressure to the temperature of the coldest coil since this is where mostofthe refrigerant will be Ifthe pressure indicates a highertemperature than that ofthe coil temperature non condensables are present Non condensables are removed from the system by first removing the refrigerant charge replacing and or installing liquid line drier evacuating and recharging 105 SERVICING S 115 C
225. ut must be deter mined and corrected before the new compressor is started S 120 REFRIGERANT PIPING The piping of a refrigeration system is very important in relation to system capacity proper oil return to compressor pumping rate of compressor and cooling performance of the evaporator POE oils maintain a consistent viscosity over a large tem perature range which aids in the oil return to the compressor however there will be some installations which require oil return traps These installations should be avoided whenever possible as adding oil traps to the refrigerant lines also increases the opportunity for debris and moisture to be introduced into the system Avoid long running traps in horizontal suction line LONG LINE SET APPLICATION R 410A This long line set application guideline applies to all AHRI listed R 410A air conditioner and heat pump split system matches of nominal capacity 18 000 to 60 000 Btuh This guideline will cover installation requirements and additional accessories needed for split system installations where the line set exceeds 80 feet in actual length Accessories for lines greater than 80 feet 1 Crankcase Heater a long line set application can critically increase the charge level needed for a system As a result the system is very prone to refrigerant migration during its off cycle and a crankcase heater will help minimize this risk A crankcase heater is required for any long line application 5
226. vaporous and liquid contents of the compressor housing and system Aventing compressor terminal normally presents no danger to anyone providing the terminal protective cover is properly in place If however the terminal protective cover is not properly in place a venting terminal may discharge a combination of hotlubricating oil and refrigerant b flammable mixture if system is contaminated with air inastream of spray which may be dangerous to anyone in the vicinity Death or serious bodily injury could occur Under no circumstances is a hermetic compressor to be electrically energized and or operated without having the terminal protective cover properly in place See Service Section S 17 for proper servicing PRODUCT IDENTIFICATION Split System Heat Pumps R410A Model Description Goodman Split 2 R410A Heat Pump 13 Seer R410A heat pump units Initial GSZ13 1AA release with Regal Beloit motor Goodman Split 2 R410A Heat Pump 13 Seer R410A heat pump units Initial release with Broad Ocean motor GSZ13 3AA GSZ13 4AA Goodman Split 2 R410A Heat Pump 13 Seer R410A heat pump units Introduces new revisions with improved circuiting for effective defrost Goodman Split Z R410A Heat Pump 13 Seer R410A heat pump units Initial release of models with 5mm Smart Coil GSZ130 24 amp 30 1AC GSZ130 24 amp 36 1 Special High Feature Split Z R410A heat pump 14 Seer heat pump units Initial
227. ween levels and the trim adjustments are made by changing the dipswitch s either to an OFF or ON position DIPSWITCH FUNCTIONS The MBE AEPF air handler motors have an electronic control that contains an eight 8 position dip switch The function of these dipswitches are shown in Table 1 Dipswitch Number Function Electric Heat Indoor Thermostat Cooling amp Heat Pump CFM Po CFM Trim Adjust Table 1 CFM DELIVERY Tables 2 3 5 and 6 show the CFM output for dipswitch combinations 1 2 and 5 6 Electric Heat Operation Model Switch1 Switch2 MBE1200 ON 60 MBE1600 RENE Table2 71 SERVICING Cooling Heat Pump Operation Mode Switch Switche MBE1200 ON ON 600 THERMOSTAT FAN ONLY MODE During Fan Only Operations the CFM output is 30 of the cooling setting CFM TRIM ADJUST Minor adjustments can be made through the dip switch combination of 7 8 Table 4 shows the switch position for this feature NOTE The airflow will not make the decreasing adjustment in Electric Heat mode Switch 7 Switch Table 4 HUMIDITY CONTROL When using a Humidstat normally closed cut jumper PJ6 on the control board The Humidstat will only affect cooling airflow by adjusting the Airflow to 8596 TWO STAGE HEATING When using staged electric heat cut jumper PJ4 on the control board 72
228. x TX3N4 5214 AFE18 60A ASCO1 Gua ess EE Makati Te ee OT 18 602 OT EHRI8 60 TX2N43 TX3N4 3 TXON 1 Installed on indoor coil 2 Required for heat pump applications where ambient temperatures fall bel ow 0 F with 50 higher relative humidy 3 Condensing units and heatp pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using non bleed expansion valve refrigerant metering device 27 ACCESSORIES DSZ SSZ16 Description I pira XL LLL m Ec ee a GR RR OTEWUESE EmememyWemTey Xt ____ Tres enesercries Ramee 5 Orieson Outdoor Thermostat w Sat x x X Lx mme X LL L mme me SE L pae M XI 1 nstalled on indoor coil Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy Field installed non bleed expansion valve kit Condensing units and heat pumps with reciprocating compressors require the use of start assist

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