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Goodmans ASX Refrigerator User Manual

1. 35 5 2 Checking 35 5 3 Checking Thermostat Wiring amp Anticipator 35 S 3A Thermostat amp Wiring 35 5 38 Cooling Anticipator 36 S 30 Heating Anticipator 36 S 3D Checking Encoded Thermostats 36 S 4 Checking Transformer amp Control Circuit 37 S 5 Checking Cycle Protector 37 S 6 Checking Time Delay Relay 37 S 7 Checking Contactor and or Relays 38 S 8 Checking Contactor Contacts 38 S 9 Checking Fan Relay Contact 38 S 10 Copeland Comfort Alert Diagnositics 39 S 11 Checking Loss of Charge Protector 41 5 12 Checking High Pressure Control 41 5 13 Checking Low Pressure Control 41 5 15 Checking 41 S 15A Resistance 42 S 15B Capacitance 42 S 16A Checking Fan amp Blower Motor Windings PSC Motors 43 S 16B Checking Fan amp Blower Motor ECM Motors 43 S 16C Checking ECM Motor Windings 46 5 160 ECM CFM Aqjustments
2. 60 5 102 Evacuation ai een 60 5 103 Charging 61 5 104 Checking Compressor Efficiency 62 S 105A Piston Chart ASX13 GSX13 SSX14 ASX14 ASZ13 GSZ13 Units 63 5 1058 Thermostatic Expansion Valve 63 5 106 66 5 107 Underfleeding 66 95 108 66 5 109 Checking SUDCOOIING 66 5 109 Two Speed Application 67 S 109B Heat Pump Heating Mode 67 S 110 Checking Expansion Valve Operation 67 5111 Fixed Orifice Restriction Devices 67 5 112 Checking Restricted Liquid Line 68 5 113 RefrigerantOvercharge 68 5 114 68 S 115 Compressor Burnout 68 5 120 RetfrigerantPiping 69 5 202 Duct Static Pressure Static Pressure Drop Across Coils 71 5 203 Air Handler External Static 71 5 204 Coil Static Pressure Drop 72 Disconnect ALL power before servicing or installing Multiple power sources may be present Failure t
3. r Dipswitch Number Cooling amp Heat Pump CFM CFM Trim Adjust Table 1 CFMDELIVERY Tables 2 3 5 and 6 show the CFM output for dipswitch combinations 1 2 and 5 6 Electric Heat Operation Model Switch Switch2 OFF ON OFF ON ON 800 ON 1600 OFF MBE1600 EH OFF ON OFF MBE2000 gt OFF ON Table 2 SERVICING Cooling Heat Pump Operation AEPF DIPSWITCH FUNCTIONS Model Switch 5 Switche Dipswitch 1 2 amp 7 8 1830 LON ON ON 600 OFF UC ON AEPF3036 3137 4260 eat Element Position Position Table 3 THERMOSTAT ONLY MODE During Fan Only Operations the CFM output is 3096 of the cooling setting OFF ON OFF TA a OFF ON CFM TRIM ADJUST Dipswitch 5 6 amp 7 8 Minor adjustments can be made through the dip switch AEPF 1830 combination of 7 8 Table 4 shows the switch position for Switch Switch Indoor Alrfl this feature Position Position ndoor Airflow NOTE The airflow will not make the decreasing adjustment 5 5 7 8 Cooling Heat Pump in Electric Heat mode Switch Switch 8 AEPF3036 3137 4260 Switch Switch Position Position indoor Airflow Table4 EAR SE EE Sm m s When using a Humidstat normally closed cut jumper PJ6 on the control board The Humidstat will only a
4. 46 S 16E Blower Performance Data 48 S 16F Checking GE X13 Motors 48 S 17 Checking Compressor Windings 49 S 17A Resistance 49 S 17B Ground TeSt 49 S 17C 50 S 17D eneee 50 S 18 Testing Crankcase Heater optional item 51 5 21 Checking Reversing Valve and Solenoid 51 S 24 Testing Defrost Control 51 S 25 Testing Defrost Thermostat 51 S 26 Checking Heater Limit Control s 52 WARNING HIGH VOLTAGE S 27 Checking Heater Elements 52 5 40 MBR ARUF Electronic Blower Time Delay with Single Stage Air Conditioners amp Heat Pumps eere 52 5 41 with GSX SSX ASX DSX Air Conditioners 54 5 41 with GSZ SSZ ASZ Heat P mps rentrer ena 55 S 60 Electric Heater optional item 58 5 61 Checking Heater Limit Control S 59 S 61B Checking Heater Fuse Line 59 S 62 Checking Heater Elements 59 S 100 Refrigeration Repair Practice 60 S 101 Leak Testing
5. RED BR _ BROWN LOW VOLTAGE YELLOW 0___ ORANGE FIELD WIRING BL BLUE HIGH VOLTAGE LOW VOLTAGE COMPONENT CODE f EM EVAPORATOR 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 POWER SUPPLY USE WIRE SEE RATING PLATE 1 FOR HEAT PUMP APPLICATIONS REMOVE ORANGE JUMPER WIRE BETWEEN 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 SNGLE STAGE COOLING APPLICATIONS CONNECT THERMOSTAT TO Y Y2 ONLY TAPE 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 ON 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 014
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7. 15kw and Above with Two OT EHR18 60 s Two Stage Electric Heat and Two Stage Thermostat From Air Handler OT EHR18 60 1 2 ee e G W R C BLUE e N WHITE Y BROWN BLACK RED u EMERGENCY THERMOSTAT RELAY 6 OT EHR18 60 2 i Y BLUE i Y wnrre BROWN BLACK RED 4 EMERGENCY THERMOSTAT HEAT RELAY c R W Y amp gt D e lt e S o 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 75 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 Li 12 THREE 3 ELEMENT Rows _ FOUR 4 ELEMENT Rows _ Lt 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 AN X IN THE PROVIDED ABOVE MARK ACCOR
8. MAJOR REVISION REFRIGERANT CHARGE No Digit R 22 Only 6 R 410A or R 22 ELECTRICAL 1 208 230 V 1ph 60Hz CABINET FINISH U Unpainted P Paited N Uncased APPLICATION C Ceiling Mount PSC Motor D Downflow PSC Motor 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 3137 3 Tons 3642 3 3 1 2 Tons 1830 1 1 2 3 1 2 Tons 10 SEEH 1729 1 1 2 2 1 2 Tons for export systems Ceiling Mount amp Wall Mount Applications Nominal Cooling Capacity Electric Heat KW 1805 1 1 2 Tons Cooling 5 kW Electric Heat 2405 2 Tons Cooling 5 kW Electric Heat 3608 Tons Cooling 8 kW Electric Heat 3705 3 Tons Cooling 5 Electric Heat 3708 3 Tons Cooling 8 KW Electric Heat All Airhandlers use DIRECT DRIVE MOTORS Power supply is AC 208 230v 60 hz 1 phase 13 ACCESSORIES ASX13 Description ASX13 ASX13 ASX13 P s s w ASC01 Anti Short Kit eene 7 eere E s Gi D s s d pw pue _____ j pP j x x gt GSX13 5 13 __ AE HE Emu hasan C x X LX T T TT gt oe L3 1 3 L G pese pt x X SSX14 SSX14 SS
9. Outdoor Thermostat w co pw wa paw pw wa SSZ14 puc D EESE fen 55214 AFE18 60A All Fuel Kit hm prsergeex E asqa asqa Emus sm Freeze Protecion ke x 5214 T er ASZ14 ASZ14 1 Installed on indoor coil 3 Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy 5 Condensing units and heatp pumps with reciprocating compressors require the use of start assist components when used in conjunction with an indoor coil using a gt gt lt ACCESSORIES DSZ SSZ16 Description D SSZ16 D d 0 55216 0 55216 D ad 0 55216 BERE 4 036 042 060 X e m ER EE Gui hosna T e T x Gus L x gt Emergency Henne Rt x Emergency Heat Relaykit x x Outdoor Thermostat x x x mw m L maw a mew ma Installed on indoor coil Required for heat pump applications where ambient temperatures fall below 0 with 50 or higher relative humidy Field in amp alled non bleed expansion valve kit Condensing units and heat pumps with reciprocati
10. Y W2 and W3 demands will be removed 4 4 Asthe temperature indoors increase it will reach a point where the second stage heat demand 2 is satis fied When this happens the room thermostat will remove the 24Vac from E W1 ofthe MBE AEPF The contacts on 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 demand for first stage heat will still be present 4 5 When the first stage heat demand Y is satisfied the roomthermostat will remove the 24Vacfrom G and Y Y2 ofthe MBE AEPF The VSTB removes the 24Vac from Y at the 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 55 SERVICING 5 0 DEFROST OPERATION On heat pump units when the room thermostat is set to the heating mode the reversing valve is notenergized 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 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 of the defrost thermostat attached to the o
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12. TXV Kit TX3N4 TXV Kit TX5N4 TXV Kit 48 X X X X X Lx _ x T X ee NUS Lo x gt EAEN x E LX j ___ x gt 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 Start assist components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device 15 ACCESSORIES ASX18 16 Description ascori Anti Short Ant shot Cycle Kit Emu esa ___ ____ x Installed on indoor coil 2 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 a non bleed thermal expansion valve refrigerant metering device ACCESSORIES All Fuel Kit ASZ13 TX2N4 TXV Kit TX3N4 TXV Kit TX5N4 TXV Kit GSZ13 AF E18 60A i ES o x xm Fa ss DENEN ow 3 remus emergency
13. The difference is 11 Superheat The 11 Superheat would fall in the range of allowable superheat 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 If subcooling and superheat are 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 c dfsubcooling and superheat are high adjust TXV valve to 7 9 F then 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 TXV 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 5 109 CHECKING SUBCOOLING Refrigerantliquid is considered subcooled when its tempera ture is lowerthan the saturation temperature
14. O atthe heat pump to energize the reversing valve As long as the thermostat is set for cooling the reversing valve will be in the energized position for cooling 3 1 Onademand for cooling the room thermostat energizes and Y1 and 24Vac is supplied to Ylow Y 1 of the MBE unit The VSTB inside the MBE will turn on the blower motor and the motor will ramp up to 60 of the speed programmedinthe motor based on the settings for dip switch 5 and 6 The VSTB will supply 24Vac to Y at the heat pump andthe compressor and outdoor fan starts in low speed operation 3 2 Iffirst stage cooling cannot satisfy the demand the room thermostat will energize Y2 and supply 24Vac to Y Y2 ofthe MBEunit Theblower motor will changetothe 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 demandis satisfied the thermostat will remove the Y2 demand and the VSTB will remove the 24Vac from Y2 atthe heat pump The blower will dropto 60 ofthe programmed cfm and the compressor and outdoor fan willchangetolow 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
15. To obtain the amount of subcooling subtract 109 F 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 reading 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 dfsubcoolingandsuperheatarelow adjust T XV 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 subcooling is low and superheat is high add charge to raise subcooling to 5 to 7 F then check superheat IFfsubcooling and superheatare high adjust TXV valveto 7to9 F superheat then check subcooling d Ifsubcooling is high and superheatis low adjust TXV valve to 7 to 9 F superheat and remove charge to lower the subcooling
16. The contacts on HR1 will open between 30 to 70 seconds and turn off heater element s and the blower motor ramps down to a complete stop S 41A MBE AEPF WITH SINGLE STAGE GSZ SSZ amp ASZ HEAT PUMPS When used with a single stage GSZ SSZ or ASZ 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 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 heat pump The orange jumper wire from terminal Y1 to terminal O 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 O of the VSTB inside the MBE AEPF unit The VSTB will supply 24Vac to O atthe heat pump to energize the reversing valve Aslong as the thermostatis set for cooling the reversing valve willbe in the energized position for cooling 3 1 Onademand for cooling the room thermostat energizes G and Y and 24Vac is supplied to terminals G and Y Y2 ofthe MBE AEPF unit The VSTB willturn onthe blower motor and the motor will ramp up to the speed programmed in the motor based on the settings of dip switch 6 The VSTBwill supply 24Vacto Y atthe heat pump 3 2 The hea
17. connector 16 pin 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 46 The MBE AEPF products use a General Electric motor This motor provides many features not available on the traditional PSC motor These features include Improved Efficiency e Constant CFM Soft Start and Stop Improved Humidity Control MOTOR SPEED ADJUSTMENT Each 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 between 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 Electric Heat Indoor Thermostat
18. or replace as necessary Indoor Blower Motor With power ON T WARNING Line Voltage now present 1 Setfan 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 35 SERVICING 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
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20. 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 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 Ceiling Mount N Uncased Flowrater Revision replaces current wavey fin design with new louvered fin design 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 MBR AA 1AA Modular Blower R Multi Position 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 4 BA Modular Blower E Multi Position Variable Speed Revision introduces new models adding lower kwhit kits on the S amp R plate Evaporator Coils Model Description EM C Indoor Coil A Upflow Downflow Uncased Flowrator Introduces 13 SEER CAUF CAUF 6AA Dayton Upflow Downflow coils REX C Indoor Coil A Upflow Downflow Uncased Flowrator Revision releases Burr Oak CAUF 6BA tie i Louvered Fin place of the Wavy Fin currently in production EM C Indoor Coil A Upflow Downflow Painted Flowrator Introduces 13 SEER CAPF CAPF 6AA Dayton Upflow Downflow coils CERA C
21. Charge S 113 Dirty Outdoor Coil o Inspect Coil Clean Noncondensibles Charge Evacuate Recharge S 114 Recirculation of Condensing Air 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 Readjust Air Volume Dampers System Undersized Refigure Cooling Load Broken Internal Parts Replace Compressor 5 115 Broken Valves Test Compressor Efficiency S 104 Inefficient Compressor Test Compressor Efficiency 5 104 Wrong Type Expansion Valve o o Replace Valve S 110 Expansion Device Restricted ele e Remove Restriction or Replace Expansion Device S 110 Oversized Expansion Valve Valve Undersized Expansion Valve ele Replace Valve Expansion Valve Bulb Loose Tighten Bulb Bracket 5 105 Inoperative Expansion Valve Check Valve Operation S 110 Loose Hold dow n Bolts Tighten Bolts Faulty Reversing Valve e Replace Valve or Solenoid 5 21 122 Faulty Defrost Control Control S 24 Faulty Defrost Thermostat 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 33 SERVICING 5 1 Checking
22. 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 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 W HTR2 TI lt 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 diagr
23. INSTALLING THIS UNIT MULTIPLE POWER SOURCES MAY BE PRESENT FAILURE 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 Bv LAW ALL REFRIGERANTS MUST BE RECLAIMED AN INDOOR LEAK IS SUSPECTED THOROUGHLY VENTILATE THE AREA BEFORE BEGINNING WORK LiQ
24. If athermostatthat provides a Y2 demandin heatingis used and first stage heating cannot satisfy the demand the room thermostat will energize Y2 and supply 24Vac to Y Y2 ofthe MBE unit The blower motor will change to the cfm for high speed heating operation and the VSTB will supply 24Vac to Y Y2 at the heat pump 57 SERVICING Theoutdoorfan will changeto high speed operation Ifthe Y2 demand is present and becomes satisfied the thermostat will remove the Y2 demand and the VSTB will remove the 24 Vac from Y Y2 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 thermostats Y2 will remain energized until the first stage heating demand Y 1 is satisfied and then the 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 is sup plied to terminal E W1 of the VSTB inside the MBE AEPF unit The VSTB will supply 24Vac to heat sequencer 1 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 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 wi
25. Indoor Coil A Upflow Downtlow Painted Flowrator Revision releases Burr Oak CAPF 6BA dr 8 Louvered Fin in place of the Wavy Fin currently in production CAPF CAUF36 CA Indoor Coil A Upflow Downflow Painted or Uncased Flowrator Revision redesigns for performance improvement from 2 row to 3 row C Indoor Coil Horizontal A Coil Painted Flowrator Release 13 SEER CHPF PEPE PAA horizontal A coil C Indoor Coil Horizontal A Coil Painted Flowrator Release 13 SEER CHPF ie horizontal A coil Revision releases Burr Oak Louvered Fin in place of the Wavy CHPF 6BA Fin currently in production The rows change by one i e 4 row to 3 row 3 row to 2 row where applicable CHPF2430B6CA CHPF3636B6CA C Indoor Coil Horizontal A Coil Painted Flowrator 18 SEER CHPF horizontal A CHPF3642 C D 6CA coil revision has louver fins amp replaces copper tube hairpins with aluminum CHPF3743C6BA hairpins CHPF3743D6CA CSCF 6AA C Indoor Coil S Horizontal Slab Coil C Upainted Flowrator Release 13 SEER CSCF slab horizontal coil C Indoor Coil S Horizontal Slab Coil C Upainted Flowrator Revision releases Burr CSCF 6BA 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 where applicable 10 PRODUCT IDENTIFICATION G Goodman Standard REVISION Feature Set SEER A Initial Release S Goodman SEER Rating High Feature Set A Amana MAJOR
26. Install new components including liquid line drier 5 Braze all joints leak test evacuate and recharge sys tem 6 Startup 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 burnout 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 tr
27. ac to the unloader molded plug leads and listen for a click as the solenoid pulls in Remove power andlisten for another click as the unloader returns to its original position 3 Ifclicks 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 theendofone molded plug leadto either ofthe two female connectors in the plug One ofthe connec tors should read close to zero ohms while the other should read infinity Repeat with other wire Thesamefemale connector as before should read zero while the other connector again reads infin ity Reverse polarity on the ohmmeter leads and repeat The female connector that read infinity previously 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 Ifthe voltage capacitor overload and motor winding test fail to show the cause for failure 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 perso
28. 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 demand is removed the sequencer opens it contacts within 30 to 70 seconds and removes power from the heater element and the blower motor The EBTDRalso contains a speedup terminal to reduce the delays during troubleshooting of the unit When this terminal is shorted to the common terminal C on the EBTDR board the delay ON time 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 These terminals are used to connect the unused leads from the blower motor and have no affect on the board s operation 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 of the auxiliary heat will vary Refer to the installation instructions and wiring diagrams provided with the MBR AR F for specific wiring connections and system configuration MBR AR F WITH SINGLE STAGE CONDENS ERS 1 0 Cooling Operation 1 1 On a demand for cooling the room thermostat ener gizes G and Y and 24Vac is supplied to Y at the condensing unit an
29. of contaminant air and cannot occur externally from the venting terminal without the presence of an external ignition source Therefore proper evacuation of a hermetic system is essential at the time of manufacture and during servicing To reduce 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 19 for the next steps 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 motor temperature or amper age heats the disc causing it to 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 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 leads from the compressor terminals A WARNING See warnings S 17 befor
30. of liquid refrigerant NOTE Even though the compressor section of a 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 5 104 CHECKING COMPRESSOR EFFICIENCY Thereasonfor compressor inefficiency is broken or damaged scroll flanks on Scroll compressors reducing the ability ofthe 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 And the charge is correct The compressor is faulty replace the compressor SERVICING S 105A PISTON CHART FOR ASX13 GSX13 5 105 THERMOSTATIC EXPANSION VALVE SSX14 ASX14 5213 GSZ13 units The expansion valve is designed to control the rate of liquid refrigerant flow into an evaporator coil in exact proportion to Orifice the rate of evaporation of the refrigerant in the coil The Condenser Size Heat Pump Size amount of refrigerant entering the coil is regulated since the AGSX130181A 0 049 A GSZ130181 0 049 valve responds to temperature ofthe refrigerant gas leaving A GSX130181B 0 051 NGSZ130241 0 057 the coil feeler bulb contact a
31. the heater assembly contains a second heater element HR1 will contain a second set of contacts M3 and which will close and turn on heater element 2 Note 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 39 and 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 on a W1 only demand f the 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 thermostat will remove the 24Vac from W2 and the VS TB will SERVICING remove the 24Vac from HR2 The contacts on HR2 will open between 3010 70 seconds and heater elements 3 4 will beturned off and the blower motor will change to low speed On most digital electronic thermostats W2 will re main 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
32. 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 wi Internal Unioacer Coil FIGUREB 1 Itis expected that the majority of run hours will be in the low capacity unloaded mode 2 Itallowsasimpletwo stage thermostatto control capac 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 27 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 refrig
33. 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 S 110 CHECKING EXPANSION VALVE OPERATION 1 Remove the remote bulb of the expansion valve from the suction line 2 Start the system and cool the bulb in a container of ice water closing the valve As you cool the bulb the suction pressure should fall andthe suction temperature will rise 3 Nextwarm the bulb in your hand As you warm the bulb the suction pressure should rise and the suction tem perature will fall 4 f a temperature or pressure change is noticed the expansion valve is operating If no change is 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 Itis designedto 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 At the sa
34. to vaporize it This is assurance that only dry gas will reach the compressor 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 28 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 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 allowin
35. 0 feet in vertical distance from each other can approach 150 feet as long as the equivalent length does not exceed 150 feet 69 SERVICING 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 Mostrefrigerant 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 2 thick suction line insula tion is recommended to reduce loss of capacity 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 t
36. 01 LEAK TESTING NITROGEN OR NITROGEN TRACED 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 SERVICING 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 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 most important part of the entire service proce dure The life and efficiency of the equipment is dependent upon the thoroughness exerci
37. 0A00000P 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 E x z gt 7 os m c go N Is E du olm 5 z 8 5 ul o 2 a 20 m c x Eu gt 5 N m o N z 9 gt RE amp a it o THERMOSTATS IHUMIDISTAT T T T V N m MEATPUMP HEATER 24 YCON W ee r R 2 ED 2 Ee ae de al aa D i3 c AS a m E ee Og H VSTB ae tu PN 81368270 REV A 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 79 ACCESSORIES WIR
38. 1AB Amana Brand Split Z RA10A heat pump 18 Seer heat pump units Initial release of Amana Brand 18 SEER Heat Pump Split System Air Conditioners R410A GSX130 1AA Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 13 SEER R 410A Condensers with Regal Beloit motors GSX130 4AB Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 13 SEER R 410A Condensers with Broad Ocean motors Goodman Split X Condenser 13 Seer condensing units Introduction of Goodman 13 GSX130 1BA SEER R 410A Condensers using Quantum Leap coils Units will have new louvers because units are smaller Piston size change Other components unchanged SSX140 1AA Special High Feature Split X Condenser 14 Seer condensing units Initial release of Goodman 14 SEER AC 4104 Special High Feature Split X Condenser 14 Seer condensing units Revisions have screw locations moved in the top panel base pans louvers and control box covers SSX14018 241AC 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 Model contain the X lt Broad Ocean motor 0131M00060 Special High Feature Split X Condenser 14 Seer condensing units Model contain the 55 14036 601 Broad Ocean motor 0131M00061 55X14030 361AD Special High Feature Split X Condenser 14 Seer condensing units Revised condenser coils b
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40. 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 Y1 is satisfied the roomthermostat will remove 24Vac from and Ylo Y1 of the MBE AEPF The VSTB removes the 24Vac from Ylo Y 1 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 58 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 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 Heating Operation in section 4 5 2 The defrost control in the heat pump unit checks to see ifa 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 c
41. 4 0 688 0 692 0 696 0 SERVICING REQUIRED LIQUID LINE TEMPERATURE LIQUID PRESSURE REQUIRED SUBCOOLING TEMPERATURE 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 AT SERVICE VALVE PSIG 10 12 14 16 18 54 50 65 SERVICING S 106 OVERFEEDING Overfeeding by the expansion valve results in high suction pressure cold suction line and possible liquid slugging ofthe compressor If these symptoms are observed 1 Checkforan overcharged unit by referring to the cooling performance charts in the servicing section 2 Check the operation of the power elementin the valve as explained in S 110 Checking Expansion Valve Operation 3 Checkfor restricted or plugged equalizer tube 5 107 UNDERFEEDING Underfeeding by the expansion valve results in low system capacity and low suction pressures If these symptoms are observed 1 Checkforarestricted liquid line or drier A restriction will be indicated by a temperature drop across the drier 2 Checkthe operation ofthe power element ofthe valve as described in S 110 Checking Expansion Valve Operation 5 108 SUPERHEAT The expansion valves are factory adjusted to maintain 8
42. 7140 4AC Special High Feature Split Z R410A heat pump 14 Seer heat pump units Models contain Broad Ocean motors 552140181 552 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 552140421 revisions replace TXV 8 compensator with flowrator 8 accumulator adds mufflers SSZ140 48 60 1AE SSZ14036 421 481 601 SS7160 1AA Special High Feature Split 2 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 SZ160 1AB Introduces new revisions have screw locations moved in the top panel base pans louvers and control box covers SSZ160 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 units Introduces models containing the Broad Ocean motor and added Muffler and standardized TXV Compensator using the ASZ18 Seer weldment to the SSZ160601 AC DSZ160 1AA Deluxe Split 2 Heat Pump 16 Seer heat pump units Introduces Goodman 2 stage 16 SEER heat pumps with R 410A SSZ160 1AC PRODUCT IDENTIFICATION ASZ130 1AA Amana Brand Split Z RA10A heat pump 13 Seer he
43. AGE PERSONAL INJURY OR DEATH 10kw and Below One Stage Electric Heat From Air Handler amp i 2 u BLUE e C K WHITE o ES BROWN a BLACK 2 RED EMERGENCY THERMOSTAT RELAY E 6 OT EHR18 60 mE Y R W Y EN on Zo From Outdoor Unit 15kw and Above Two Stage Electric Heat From Air Handler SEE NOTE 2 2 Sg P w2 R Lo lt BLUE e 7 E WHITE E 5 I gt 6 BROWN BLACK RED EMERGENCY THERMOSTAT HEAT RELAY R OT EHR18 60 Y R e 2 Note on Xo When using a Thermostat with only one stage for electric heat W2 tie white and brown wires from air handler together 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 74 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
44. AUGE GAUGE 2577 AND VALVE A ANDVALVE 800 PSI RATED HOSES 5 CHARGING CYLINDER AND SCALE VACUUM PUMP ADAPTER UNIT SERVICE VALVE PORTS VACUUM PUMP EVACUATION 3 Ifthe vacuum pumpis 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 valve to the cylinder 4 Evacuatethe systemto atleast 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 not rise above 1500 microns in three tofive minutes system canbe 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 continuestorise a leak is present Repair and re evacuate 7 Closevalvetothermocouple vacuum gauge and vacuum pump Shut off pump and prepare to charge 5 103 CHARGING WARNING REFRIGERANT UNDER PRESSURE Do not overcharge system with refrigerant Do not operate unit in a vacuum or at negative pressure Failure to follow proper procedures may cause property damage personal injury or death 61 SERVICING CAUTION Use refrigerant certified to AHRI s
45. Brand NOMINAL REVISION Deluxe CAPACITY A Initial Release k P 018 1 5 Tons 024 2 Tons 030 2 5 Tons PRODUCT 036 3 Tons FAMIL Y 042 3 5 Tons S Split System 048 4 Tons 060 5 Tons PRODUCT TYPE X Condenser R 410A 1 208 230V 1ph 60Hz 3 208 230v 3ph 60Hz 4 460v 3ph 60Hz 11 PRODUCT IDENTIFICATION EXPANSION REVISION 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 B Fits 17 1 2 Furnace Cabinet C Fits 21 Furnace Cabinet D Fits 24 1 2 Furnace Cabinet N Does Not Apply Horizontal Slab Coils APPLICATION A Upflow Downflow Coil H Horizontal A Coil S Horizontal Slab Coil 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 4860 4 amp 5 Tons ELECTRICAL SUPPLY DESIGN SERIES 1 208 230V 60hZ 1 ph MB Modular Blower MOTOR TYPE FACTORY HEAT 00 No Heat DESIGN SERIES A First Series 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 12 PRODUCT IDENTIFICATION LET Lo Led La EXPANSION MINOR PRODUCT DEVICE REVISION TYPE F Flowrater A Air Handler T TXV Expansion Device
46. CE 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 PREVENT THE RISK OF PROPERTY DAMAGE PERSONAL INJURY OR DEATH ONLY BY INDIVIDUALS MEETING THE REQUIREMENTS OF AN ENTRY DO NOT STORE COMBUSTIBLE MATERIALS OR USE GASOLINE OR OTHER LEVEL TECHNICIAN AS SPECIFIED BY THE AIR CONDITIONING FLAMMABLE LIQUIDS OR VAPORS IN THE VICINITY OF THIS APPLIANCE HEATING AND REFRIGERATION INSTITUTE AHRI 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 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
47. DING TO NUMBER OF HEATER ELEMENT ROWS INSTALLED NO MARK INDICATES NO HEAT KIT INSTALLED TERMINAL BLOCK SHOWN 12 i EQUIPMENT GROUND FOR 50HZ MODELS ONLY USE COPPER OR ALUMINUM WIRE RD BK RD G SR 000000000 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 M2 BL MEDIUM BK HIGH COLOR CODE BLACK GR_GREEN RD _ RED PU PURPLE YL_ YELLOW BR BROWN BL_ BLUE WH WHITE COMPONENT CODE EM EVAPORATOR MOTOR RC 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 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 appropriate motor wire Red for low Blue for medium and Black for high speed on connection of the EBTDR Inactive motor wires should be connected to M1 or M2 on EBTDR 4 Brown and white wires a
48. G Do notusealow voltage output instrument such as a volt ohmmeter COMPRESSOR GROUND TEST Ifaground is indicated then carefully remove the com pressor terminal protective cover and inspect for loose leads or insulation breaks in the lead wires 4 f no visual 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 Ifgroundis 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 If it is suspected that the unloader is not working the following methods may be used to verify operation 50 1 Operate the system and measure compressor current unloader ON and OFF at 10 secondintervals Thecompressor amperage should go up or downatleast 25 percent 2 Ifstepone does not give the expected results shut unit off Apply 18 to 28 volt
49. H THIS ASSEMBLY IS NEC ESSARY USE WIRE THAT CONFORMS TO THE NATIONAL ELECTRIC CODE 0140A00034 Typical Wiring Schematic ASPF 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 80
50. HEATING ANTICIPATOR The heating anticipator is a wire wound adjustable heater which is energized during 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 OPTIONS Troubleshooting Encoded Two Stage Cooling Thermostats Options EPN TO Q A TEST FUNCTION SIGNALOUT SIGNAL FAN INDICATION 51 LOW SPEED COOL YCON Yi 51 LO SPEED COOL YCON Y Y2HI ERROR CONDITION DIODE ON THERMOSTAT BACKWARDS 51 HI SPEED COOL YCON 2 82 LO SPEED HEAT W1 HEATER W W1 SEE NOTE 3 INPUT 52 ED FUTURE USE THERMOSTAT S24 LO SPEED HEAT W1 HEATER W W1 SEE NOTE 3 HI SPEED HEAT W2 HEATER EM W2 S3 S3 N A N A N A ERROR CONDITION 53 CAN ONLY READ S3 N A N A N A ERROR CONDITION 53 CAN ONLY READ id R 24 R TO T STAT R THERMOSTAT COM GND COM TO TSTAT 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 chart above provides troubleshooting for either version of the encoded thermostat option Th
51. ING 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 ONE 1 ELEMENT ROWS oO 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 IN THE 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
52. L 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 E WARNING Line Voltage now present 4 Startthe 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 LIQUID LINE AUTOMATIC RESET If it cuts out at610 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 S 13 CHECKING LOW PRESSURE CONTROL The low pressure control senses the pressure in the suction 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 automatically cut in close at
53. P SECOND STAGE FURNACE DEMAND OUTPUT COMPRESSOR OUTPUT lt SECOND STAGE COMPRESSOR OUTPUT REVERSING VALVE OUTPUT Y2 HP E Y2 STAT Y2 FURN POWER SUPPLY OUT TO THERMOSTAT CALL FOR 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 lt lo A 3 N 2 gn vr Qr 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 l 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 73 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 DAM
54. Q Q USE COPPER OR ALUMINUM WIRE _foxrur R RIcIGIW1 w2 Y1 Y2 JO DHT1 2 3 4 5 WC RD GRD E PLM 00000 Lomo EBTDR RD oc G 9 NO NC PLE 2 9 0 6 0 oc BK BL BR WH uil BR NOTE4 WH BL CR TAKA BL GR RD 6 5 1 RD 2 2 EM i 2 mg OR HB 5 RD EBTDR N RD IBIcIGIWiTWzTY1TY2 o pH i P345 XFMR C ie Bi NOTES COLOR CODE WIRING CODE GR p GR BK_BLACK GREEN FACTORY WIRING RD_ RED PU_ PURPLE HIGH VOLTAGE YL YELLOW BR_BROWN LOW VOLTAGE 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 PLM 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 ard white wires are used with Heat Kits only IF REPLACEMENT OF THE ORIGINAL WIRES SUPPLIED WIT
55. Service Instructions SSX ASX GSX DSX Condensing Units SSZ ASZ GSZ DSZ 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 performed by an unqualified person Copyright 2006 2009 Goodman Manufacturing Company L P RS6200006r1 1 April 2009 IMPORTANT INFORMATION IMPORTANT INFORMATION 2 3 TROUBLESHOOTING CHART 33 PRODUCT IDENTIFICATION 4 11 SERVICE TABLE OF CONTENTS 34 ACCESSORIES su uuu anan sasie e ee 13 23 SERVICING iiti ritenere necs 35 72 PRODUGT DESIGN oit au as 25 27 ACCESSORIES WIRING DIAGRAMS 73 80 SYSTEMOPERATION etes 28 32 Pride and workmanship go into every product to provide our customers with quality products lt 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 REVIEW ALL SERVI
56. UID REFRIGERANT CAN BE VERY COLD TO AVOID POSSIBLE FROST BITE OR 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 tigh
57. X14 SSX14 ee pem me em e om porasi X X X LX TL T S INN s L3 L im pw CE j X x x ASX14 Perm ASX14 E B ASX14 oe E ASX14 P 018 036 060 ER c ee D D EUN T TT I T E pw pw T T T T TT TT 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 14 ACCESSORIES DSX SSX16 024 030 036 042 048 060 cm pU ET CRUS ue OX poc ET pg NENNEN EN NE M peur p NENNEN TX3N4 TXV Kit TX5N4 T XV Kit Installed on indoor coil i Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy 3 Field installed non bleed expanson 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 pu _____ ASX16 Description 16 024 mE Gm i i X E E ASX16 ASX16 ASX16 ASX16 ASX16 030 036 042 0 060 X X SR U 3 Hard start Kit FSKO1A Freeze Protection Kit X X 2
58. acts 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 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 Eur 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 A WARNING wa Line Voltage now present 3 Using a voltmeter test across terminals A L2 T1 No voltage indicates CC1 contacts open If a no voltage reading is obtained replace the contactor 38 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 proceedtoB 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 9 CHECKING FAN RELAY CONTACTS WARNING HIGH VOLTAGE Disconnect ALL power before servi
59. ally closed contacts No reading indicates the control is open replace if necessary IF FOUND OPEN 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 j Disconnect ALL power before servicing 1 Remove heater element assembly so as to expose fuse link 59 SERVICING 2 Using an ohmmeter test across the fuse link for continu ity no reading indicates the link is open Replace as necessary NOTE Thelinkisdesignedto open at approximately 333 F DONOT WIRE AROUND determine reason for failure 5 62 CHECKING HEATER ELEMENTS WARNING O 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 Ay DANGER Always remove the refrigerant charge in a proper manner before applying heat to the system When repairing the refrigeration system 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 inj
60. am for the unit being serviced 78 Se W T BK n ni HTRI T L 5 w 19 x 5 FL Y 6 E BK HTR4 TL BLA E X 158 c BK BL Y BK PU T v LUA ax ie J bie T es 1 EE HO 0 R E R1 R ej R Ne OV F owe w M20 O ae R1 R2 en gt BK w n w e BK BK w 5 i 1 3 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 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 o BOX PLI PLI H R PL2 PL2 SEE NOTE 8 TO LOW VOLTAGE BK TERMINAL BOARD Y o BL PU Y e et Jen anf 5 4 o 0100000000 TR BL Bk IR 4 24VOLT 5 M zm PL2 Ly aL 5 PL2 6 PL2 FREE a 20 ay R SEE NOTE 5 NOTE 2 YCON 5 PJS DIODE No TE DIODE 8 9 CIO 2A BL BR SEE NOTE 7 gk SEE NOTE 3 SEENOTE 2 SEENOTE 1 COLOR CODE WIRING CODE J W__WHITE G_ GREEN BK _ BLACK PU _ PURPLE FAO TORY WIRING
61. amp OND gt 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 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 37 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 cont
62. approximately 50 PSIG Test continuity using a VOM and if not as 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 a motor This is accomplished by using the 90 phase relationship betweenthe 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 Start and or Super Boost kits are not approved start assist devices 41 SERVICING The discharge check valve closes off high side pressure to the compressor after shutdown allowing equalization th
63. aps 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 Acrankcase heater is required for any long line application 50 watt minimum 2 set applications over 80 feet a 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 migration during its off cycle and a liquid 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 appl
64. at pump units Initial release of Amana Brand 13 SEER Heat Pump R410A ASZ140 1AA Amana Brand Split Z R410A heat pump 14 Seer heat pump units Initial release of Amana Brand 14 SEER Heat Pump Amana Brand Split Z RA10A 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 Z RA10A heat pump 14 Seer heat pump units New revisions have horizontal style louvers ASZ140181AD ASZ140 24 36 1AE Amana Brand Split Z R410A 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 RA10A heat pump 16 Seer heat pump units Initial release of Amana Brand 16 SEER Heat Pump Amana Brand Split Z RA10A 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 1AC Amana Brand Split Z R410A heat pump 16 Seer heat pump units New revisions have horizontal style louvers Amana Brand Split Z RA10A 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 RA10A heat pump 16 Seer heat pump units Adds new steel ASZ160 36 60 AE muffler and suction tubes w shock loop ASZ180
65. atic pressure ofthe supply duct Positive Pressure 71 SERVICING 3 Addthe two readings together TOTAL EXTERNAL STATIC NOTE Both readings may be taken simultaneously and read d 4 If d irectly on the manometer if so desired Consult proper table for quantity of air external static pressure is being measured on a furnace to etermine airflow supply static must be taken between the A coil and the furnace TOTAL EXTERNAL STATIC S 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 72 STATIC PRESSURE DROP Ifthetotal 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 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 ALLFUEL SYSTEM AFE18 60A CONTROL BOARD POWER SUPPLY gt INPUT POWER FURNACE DEMAND lt 5 SUPPLY OUTPUT BLOWER FAN DEMAND OUTPUT POWER SUPPLY INPUT gt COMMON W1 FURN W2 H
66. ator 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 Fig 6 Evaporator unit with inverted vapor loop 3 An oil trap is required at the evaporator if the condenser is above the evaporator Depending on the vertical rise ofthe line set oil traps are required inthe suction line Oil traps should be installed at equal intervals along the suction line Install 1 oil trap for a height difference of 15 25 feet between indoor and outdoor units Install 2 oil traps for a difference of 26 50 ft 3for51 100ft and4for101 150ft Preformedoiltraps are available at most HVAC supply houses or oil traps may be created by brazing tubing elbows together see diagram below Remember to add the equivalent length from oil traps to 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 referto Table 5 SERVICING Liquid Line Suction Line Mounting the condensing unit above the evaporator coil will require oil traps at equal intervals along the suction line Install 1 oil trap fo
67. 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 5 15 CAPACITANCE CHECK Using a hookup as shown below take the amperage and voltage readings and use them in the formula VOLTMETER L CAPACITOR TESTING CAPACITANCE WARNING Discharge capacitor through a 20 to 30 OHM resistor before handling Capacitance MFD 2650 X Amperage Voltage 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 fasterto dissipate than the compres Sor allow atleast 45 minutes for the overload to reset then retest 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 from its respective connection points and capacitor if applicable 2 Checkthe continuity between each of the motor leads 3 Touch one probe of the ohmmeter to the motor frame ground and the other p
68. cause the terminals to be expelled thereby venting the vaporous and liquid contents of the compressor housing and system venting 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 a 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 Z R410A Heat Pump 13 Seer R410A heat pump units Initial GSZ13 1AA i ue release with Regal Beloit motor kk Goodman Split Z R410A Heat Pump 13 Seer R410A heat pump units Initial GSZ13 1 AB release with Broad Ocean motor SSZ140 1AA Special High Feature Split Z R410A heat pump 14 Seer heat pump units Initial release of Goodman 14 SEER Heat Pump R410A Special High Feature Split 2 R410A heat pump 14 Seer heat pump units SSZ140 1AB Introduces new revisions have screw locations moved in the top panel base pans louvers and control box covers SS
69. cing or installing Multiple power sources may be present Failure to do so may cause property damage personal injury or death 1 Disconnect wires 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 Green power LED indicates SERVICING voltage is present at the power A WARN connection of module Line Voltage now present Yellow alert LED flashes to indicate fault code a N N N TESTING FANRELAY EY NC 4 4 Using anohmmeter test between 2 and 4 should read continuous Test between 5 and 6 should read open Red trip LED indicates if compressor is tripped or has no power 5 Ifnotas above replace the relay S 10 COPELAND COMFORT ALERT DIAGNOSTICS Applies to ASX ASZ and DSX DSZ units _ WARNING HIGH VOLTAGE AY Disconnect ALL power before servicing or or installing this unit Multiple power sources Aig may be present Failure to do so may cause x property damage personal injury or death ZZ E Comfort Alert is self contained with no required external LL sensors and is designed to install directly into the electrical gt box of any residential condensing
70. continue SSX140601A 0 08 to allow some equalization even though the valve has shut off A SSX140181B 0 052 completely because ofthe bleed holes within the valve This type of valve should not be used as a replacement for a 096 ASSXUUZNB bleed valve due to the resulting drop in performance ASOME 0066 The bulb must be securely fastened with two straps to a clean A SSX140361B 0 070 straight section of the suction line Application of the bulb to a horizontal run of line is preferred If a 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 63 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 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 2 3 3 4 5 Based on ALLIED SIGNAL Data 64 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 68
71. corresponding toits pressure The degree of subcooling equalsthe degrees oftemperature decrease below the saturation temperature at the existing pressure 1 Attach an accurate thermometer or preferably a thermo couple type temperature tester to the liquid line as it leaves the condensing unit 2 Installahigh 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 SERVICING 4 Review the technical information manual or specification sheet for the model being serviced to obtain the design subcooling 5 Compare the hi pressure reading to the Required Liquid Line Temperature chart page 43 Find the hi pressure value on the left column Follow that line right to the column under the design subcooling value Where the two intersect is the required liquid line temperature Alternately youcan convertthe liquid line 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 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 120 c Thermometer on Liquid line 109
72. d on 2 and 2 5 ton units should close at 34 F 5 F Partt 0130M00001 P which is used 3 thru 5 ton units should close at 31 F 3 F 51 SERVICING 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 F Part 0130M00001P which is used on thru 5 ton units should open at 75 F 6 4 fnotas above replace control 5 26 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 ele ment to prevent overheating of components in case of low airflow This limit control will open its circuitat approximately 150 F to 160 and close at approximately 110 F E WARNING 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 S 27 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 more heaters than the quantity shown be installed AA WARNING HIGH VOLTAGE Disc
73. d the G terminal on the EBTDR board 1 2 The compressor and condenser fan are turned on and after a7 secondon 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 SERVICING 1 4 The compressor and condenser fan are turned off and after a 65 second delay off the relay on the 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 M2 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 will be energized thru the normally closed contacts on the EBTDR board At the same time if the heater assembly contains a second heater element HR1 will contain a second set of contacts 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 Ifthe 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 suppl
74. e new models OSA of Amana Brand Deluxe 13 SEER R410A conditioners Amana Brand Split X Condenser 13 Seer condensing units Introduction of Amana ASX130 1BA Brand 13 SEER R 410A Condensers using Quantum Leap Coils Units will have new louvers since units are smaller Piston size change other components unchanged ASX140 1 AA Amana Brand Split X Condenser 14 Seer condensing units Initial release new models of Amana Brand Deluxe 14 SEER AC R410A conditioners m Amana Brand Split X Condenser 14 Seer condensing units New revisions have ASX140 1AB T screw locations moved in the top panel base pans louvers and control box covers ASX140 4AC 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 removing 1 hairpin Reduce R410A quantity by 6 ounces ASX140421AD Brand Split X Condenser 14 Seer condensing units Introduces 140421 in 29 base pan Amana Brand Split X Condenser 14 Seer condensing units Revision for ASX140421 ASX140421BA in 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 36 1BA AmanaQ Brand Split X Condenser 14 Seer condensing units Introduction of Amana ASX140421CA Brand 14 SEER R 410A Condensers using Quantum Leap Coils E Ama
75. e removing compressor terminal cover 2 Using an ohmmeter test continuity between terminals S R C R and C S on single phase units or terminals T2 T2 and T3 on 3 phase units TESTING COMPRESSOR WINDINGS If either winding does not test continuous replace the compressor NOTE If an open compressor is indicated allow ample time for the 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 must be found and corrected The circuit protective device rating must be checked and its 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 atthe 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 ground such as an unpainted tube on the compressor 49 SERVICIN
76. e the 24Vac from and Y The heat pump is 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 notenergized As long as the thermostatis setfor heating the reversing 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 Heating 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 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 defr
77. eater element 2 The blower motor is already on as a result of terminal G onthe EBTDR board being energized for the first stage heat demand 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 If the 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 Whenthe W3 demand is satisfied the room thermostat 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 On most digital electronic thermostats W3 will remain energized until the first stage heat demand Y is satisfied and then the G 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 Whenthis happens the roomthermostat will remove the 24Vac from the coil of HR1 The contacts on HR1 will open between 3010 70 seconds and turn off both heater element s The heat pump remains on along with the blower motor because the Y demandforfirststage heat will still be present 53 SERVICING 4 5 When the first stage heat demand Y is satisfied the room thermostat will remov
78. ed 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 34 and 4 heater elements if available SERVICING For the 3 and 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 VS TB will run the blower motor on low speedon a W1 only demand Ifthe first stage heat demand W1 satisfied by the heat pump the temperature indoors will continue to drop The room thermostat will then energize W2 and 24Vac willbe supplied to HR2 onthe 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 30 to 70 seconds and heater elements 3 and 4 will be turned off and the blower motor will change to low speed On most digital electronic thermostats W2
79. em 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 atthe 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 an expansion valve metering device will basically modulate and control a flooded evaporator and prevent liquid return 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 insufficientindoor aircan 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 check out 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 s
80. eration cycle possible are heat always flows from a warmer to a cooler body Under lower pressure a refrigerant will absorb heat and vaporize at alow temperature The vapors may be drawn off and condensed ata 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
81. essor 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 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 40 SERVICING S 11 CHECKING LOSS OF CHARGE PROTECTOR Heat Pump Models Theloss of charge protector senses the pressure inthe liquid line and will open its contacts on a drop in pressure Thelow 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 willautomatically cut in close at approximately 50 PSIG Test continuity using a VOM and if not as above replace the control 5 12 CHECKING HIGH PRESSURE CONTROL AX WARNING HIGH VOLTAGE Disconnect AL
82. f the sweat type for field piping with refrigerant type copper Front seating valves are factory installed to accept thefield run copper The total refrigerant charge for a normal installation is factory installed in the condensing unit GSX GSZ ASX ASZ SSX SSZ and DSX DSZ models are available in 1 1 2 through 5 ton sizes and use R 410A refrigerant They are designedfor 208 230 volt single 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 and SSZ R 410A model units use the Copeland Scroll Ultratech Series compressors which are specifically designed for R 410A refrigerant 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 of the 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 MBR MBE blower cabinets are designed to be used as a two piece blower and coil combination MBR MBE blower sec tions can be attached to cased evaporator coil This two piece ar
83. ffect cooling ON or 1580 1580 airflow by adjusting the Airflow to 8596 OFF ON ov 39m When using staged electric heat cut jumper PJ4 on the control board 47 SERVICING S 16E BLOWER PERFORMANCE DATA me SCFM SCFM SCFM SCFM os 120 1 1 9 Los ce ode des e 43 1 e t rm 13 s os so 9 o 42 Fos s o to NOTE External static is for blower 230 Volts It does not include Coil Air Filter or Electric Heaters S 16F CHECKING GE X13 MOTORS igh Voltage H The GE X13 Motor is a one piece fully encapsulated 3 Connections phase brushless DC single phase AC input motor with ball 3 16 bearing construction Unlike the 2 3 2 5 motors the GE X13 features an integral control module Note The GE TECMate will not currently operate the GE X13 motor 1 Using 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 to step 3 If no voltage check 24 volt circuit to motor 3 If voltage was present in steps 1 and 2
84. g liquid refrigerant to pass through the orifice opening In the heating cycle 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 When the contacts of the room thermostat close making terminals Rto Y amp G the low voltage circuit of the transformer is completed Current now flows through the magnetic hold ing coils of the compressor contactor CC and fan relay RFC This draws in the normally open contact CC starting the compressor and 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 on the on position then the indoor blower would run continuous rather than cycling with the compressor GSZ ASZ SSZ and DSZ models energize the reversing valve thorough the O circuit in the room thermostat Therefore the reversing valve remains energized as long as the thermo stat subbase is in the cooling position The only exception to this is during defrost SYSTEM OPERATION DEFROSTCYCLE 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 circu
85. gh side manifold valve and transfer the liquid refrigerant from the liquid line hose and 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 be 60 F or higher Set the room thermostat to COOL fan switch to AUTO and set the 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 onthe outdoor unit If pressures and amp draw are too low add charge If pressures and amp draw are too high remove charge Check subcooling and superheat as detailed inthe following section 62 5 With the system still running remove hose and reinstall both valve caps 6 Check system for leaks Do notcharge a remote condensing unit with a non matching evaporator coil or a system where the charge quantity is unknown Donotinstallorcharge 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 in this manual Subcooling values for Ultron system are found in the Technical Information manuals for Ultron outdoor units Duetotheir design Scroll compressors are inherently more tolerant
86. ging of the 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 CONDENSERS 1 0 COOLING OPERATION When used with the ASX amp DSX two stage condens ers dip switch 4 must be 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 andthe purple wire labeled Ylow 56 Y1 inside the wire bundle marked Outdoor Unit must be 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 Y1 to terminal O on the VSTB inside the MBE AEPF must remain con nected 1 1 Onademandfor cooling the room thermostat energizes and Y1 and 24 is supplied to and Ylow Y 1 ofthe MBE AEPF unit The VSTB inside the MBE AEPF 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 for dip switch 5 and 6 The VSTB will supply 24Vacto Y
87. hanced fin ARUF BA A Single Piece R Multi Position PSC Motor Unpainted Flowrater Introducation of R 22 Only Air Handlers A Single Piece R Multi Position PSC Motor Painted Flowrater Introducation of ARPF 16AA new 13 SEER Air Handler Models All Models will be suitable for use with R 22 and R 410A A Single Piece R Multi Position PSC Motor Painted Flowrater Revision ARPF364216AB replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line A Single Piece R Multi Position PSC Motor Painted Flowrater Revision ARPF486016AB replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line da A Single Piece R Multi Position PSC Motor Painted Flowrater Revision ARPF 16BA x replaces all ARPFcoils using wavy fin with louver enhanced fin 1 A Single Piece Multi Position PSC Motor Painted Flowrater Introducation of R 22 Only Air Handlers A Single Piece Downflow PSC Motor Unpainted Flowrater Introducation of ADPF 16AA new 13 SEER Air Handler Models All Models will be suitable for use with R 22 and R 410A A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces ADPF364216AB the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces ADPF486016AB the current spot welded blower h
88. he instal lation 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 static pressure external to the unit The installation manual supplied with the blower coil orthe blower performance table in the service manual shows the CFM for the static mea sured SERVICING Alternately the system can bedetermined by operating the electric heaters and indoor blower WITHOUT havingthe compressor in operation Measure the temperature rise as close to the blower inlet and outlet as possible If otherthan a 240V power supply is used referto the BTUH CAPACITY CORRECTION FACTOR chartbelow BTUH CAPACITY CORRECTION FACTOR MULTIPLICATION 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 F 240V perm ea re it tw fo ew KW KW KW KW KW KW KW Peo
89. he suction line to minimize capacity loss TABLE 4 CAPACITY MULTIPLIERS AS A FUNCTION OF SUCTION LINE SIZE amp EQUIVALENT LENGTH Nominal Vapor line EQUIVALENT LINE LENGTH FT capacity diameter 18 000 34 99 97 96 95 95 2400 34 1 99 99 98 97 3000 34 98 97 96 95 94 36 000 32 92 05026 83 79 gt 78 98 96 4 92 90 3 4 9 90 87 83 80 42 000 78 97 96 94 93 92 t 3 1 99 98 34 90 86 82 N R 48 000 78 96 94 9 89 1018 3 1 99 99 98 8 93 9 8 27 97 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 TABLE 5 LOSSES FROM SUCTION LINE ELBOWS EQUIVALENT LENGTH FT itti Type of elbow fitting 178 902 short radius 90 long radius 45 oz 1 70 Installation Requirements 1 Inacompletely horizontal installation with a long line set where the evaporator is at the same altitude as or slightly below the condenser the line set should be sloped towards the evaporator This helps reduce refrigerant migrationtothe condenser during a system s off cycle 2 Forasysteminstallation where the evaporatoris above the condenser an inverted vapor line trap should be installed on the suction line just before the inlet to the evapor
90. heater continuity should test continuous If not replace NOTE The positive temperature coefficient crankcase heater is a 40 watt 265 voltage heater The cool resistance of the heater will be approximately 1800 ohms Theresistance will become greater as the temperature of the compressor shell increases S 21 CHECKING REVERSING VALVE AND SOLENOID Occasionally the reversing valve may stick inthe 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 Anincrease in the suction line temperature through the reversing valve can also be measured Check operation of the valve by startingthe system and switching the operation from COOL ING to HEATING cycle Ifthe valve fails to change its position test the voltage 24V at the valve coil terminals while the system is on the COOLING cycle If no voltage is registered at the coil terminals check the operation of the thermostat and the continuity of the con necting wiring from O terminal of the thermostat to the unit If voltage is registered at the coil tap the valve body lightly while switching the system from HEATING to COOLING etc Ifthisfailsto causethe valve to switch positions remove the coil connector cap andtestthe continuity ofthe reversing valve solenoid coil If the coil does not test continuous replace i
91. ications the equivalentline length is the sum of the straightlength portions ofthe suction line plus losses in equivalent length from 45 and 90 degree bends Selectthe 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 34 elbow 150 feet of straight tubing four short radius elbows x 1 7 2 long 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 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 notto 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 equivalentlength does not exceed 150 feet e The distance between the condenser and evaporator in a completely horizontal installation in which the indoor and outdoor unit do not differ more than 1
92. ied to HR2 on the heater assembly When the W2 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 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 O which energizes the reversing valve As long as the thermostat is set for cooling the reversing valve willbe 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 3 2 The heat pump turned on in the cooling mode 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 on the EBTDR board is de energized a
93. is provides diagnostic information for the GMC CHET18 60 ora conventional two cool two stage heatthermostat with IN4005 diodes added as called out in the above section Atestlead or jumper wire can be added from the test terminal to any terminal on the B13682 74 or B13682 71 variable speed terminal board and provide information through the use of the LED lights on the B13682 71 VSTB control Using this chart a technician can determine if the proper input signal is being received by the encoded VSTB control and diagnose any THE LED WILL BE GREEN AND WILL LIGHT TO INDICATE HALF CYCLES BOTH RED AND GREEN ILLUMINATED WILL INDICATE FULL CYCLES DENOTED BY 3 SIGNAL OUT CONDITION FOR W1 W2 HEATER WILL BE AFFECTED BY OT1 PJ4 AND OT2 PJ2 JUMPERS AND OUTDOOR THERMOSTATS ATTACHED THE TABLE ABOVE ASSUMES PJ4 IS REMOVED AND PJ2 IS MADE WITH NO OUTDOOR THERMOSTATS ATTACHED problems that may be relayed to the output response of the B13682 74 VSTM control 36 SERVICING S 4 CHECKING TRANSFORMER AND CONTROL CIRCUIT 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
94. it 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 jumperto 30 60 or 90 respectively Accumulation oftime 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 HEATING CYCLE The reversing 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 mustbe taken when selecting a room thermostat Refer to the installation instructions shipped with the product for approved thermostats 29 SYSTEM OPERATION COOLING CYCLE Reversing Valve Energized Indoor V Outdoor Coil J Coil Accumulator Thermostatic Expansion Valve lt lt gt Bi Flow Filter Dryer Check Valve HEATING CYCLE Reversi
95. lation 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 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 greatan external static pressure will resultin 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 Todetermine 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 Measurethe st
96. ll 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 a 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 Whenthe W3 W4 demand is satisfied the room thermostat will remove the 24Vacfrom 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 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 As 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 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
97. low Y1 atthe 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 24Vacfrom Y Y2 atthe condenser The blower will drop to 6096 ofthe programmed cfm and the 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 Y1 and Y2 demands will be removed 1 3 When the first stage cooling demand Y 1 is satisfied the room thermostat removes the 24Vac from G and Y1 The MBE AEPF removes the 24Vac from Ylow Y1 atthe condenser andthe 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 AEPF unit The VSTB will turn on the blower motor and the motor will ramp up to the spe
98. may not be desgnated C Circuit Breaker option 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 183016 5 0 616 ASPE313716 ASPFA26016 o Maaa MA aaa x __ _ x jJ x x E gt gt Revision level that may or may not be designated C Circuit Breaker option Heat kit requires 3 phase power supply t 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 40r 5 24 x IS gt gt lt gt gt ox x gt gt gt lt lt 2 gt 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 propeller 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 o
99. me time the cooling load on the indoor coilincreases 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 onthe 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 67 SERVICING 2 Remove the orifice or tube strainer assembly and re place 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 Startthe system and allow the pressures to stabilize 3 Stopthe 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 syst
100. na Brand Split X Condenser 16 Seer condensing units New revisions have ASX160 1AB ee screw locations moved in 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 ASX180 1AB Amana Brand Split X Condenser 18 Seer condensing units Initial release new models of Amana Brand Deluxe 16 SEER conditioners PRODUCT IDENTIFICATION Single Piece Air Handlers Model Description A Single Piece R Multi Position PSC Motor Unpainted Flowrater Introducation ARUF 16AA of new 13 SEER Air Handler Models All Models will be suitable for use with R 22 and R 410A A Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision ARUF364216AB replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line A Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision ARUF486016AB replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line A Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision ARUF364216AC replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line eer A Single Piece R Multi Position PSC Motor Unpainted Flowrater Revision ARUF 16BA disci ic replaces all ARUFcoils using wavy fin with louver en
101. nal injury or death 1 Remove unit wiring from disconnect switch and wire a test cord to the disconnect switch NOTE The wiresize 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 nected at the nearest point to the compressor and connect the common start and run clips to the respec tive leads SERVICING 3 Connect good capacitors of the right MFD and voltage rating into the circuit as shown 4 With power ON close the switch T WARNING TT Line Voltage now present A Ifthe 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 YEAR SERIAL PLANT NUMBER 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 Crankcase heaters are used to prevent migration or accumu lation of refrigerant inthe compressor crankcase during the off cycles and prevents liquid slugging or oil pumping on start up A crankcase heater will not prevent compressor damage due to a floodback or over charge condition E WARNING Eus j Disconnect ALL power before servicing 1 Disconnect the heater lead in wires 2 Using an ohmmeter check
102. nd 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 notenergized As long as the thermostat is 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 a preset ambienttemperature Use of optional controls such as these can change the operation of the electric heaters duringthe 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 roomthermostat energizes G and Y and 24Vacis supplied to Y atthe heat pump unit and the G terminal onthe EBTDR board The heat pumpis turned oninthe heating mode and the blower motor starts after a 7 second on delay 4 2 lf the first stage heat demand cannot be satisfied by the heat pump the temperature indoors will continue to drop The room thermostat will then energize terminal W2 for second stage heat and 24Vac will be supplied to heat sequencer HR1 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 contacts and which will close and turn on h
103. ndthe pressure ofthe refrigerant in the coil This regulation of the flow prevents the return of A GSX130241A 0 053 52130301 0 063 liquid refrigerantto the compressor A GSX130241B 0 057 A GS2130361 The illustration below shows typical heatpump TXV check ANGSX130301 0 059 NGSZ130421 0 074 valve operation in the heating and cooling modes A GSX130301B 0 061 A GSZ130481 0 078 A GSX130361A 0 068 A GSZ130601 0 088 lt T _ e A GSX130361B 0 070 552140361 0 071 AGSX130421A 0 074 852140421 0 076 A GSX130421B 0 076 SSZ140481 0 080 COOLING HEATING AGSX130481A 0 080 SSZ140601A TXV VALVES A GSX130481B 0 080 Some TXV valves contain an internal check valve thus eliminating the need for an external check valve and bypass A GSX130601 0 022 loop The three forces which govern the operation ofthe valve SSX140181A 0 049 are 1 the pressure created in the power assembly by the SSX140241A 0 057 feeler bulb 2 evaporator pressure and 3 the equivalent pressure of the superheat spring in the valve SSX140301A 0 063 096 bleed type expansion valves are used on indoor and SSX140361A 0 067 outdoor coils The 096 bleed valve will not allow the system SSX140421A 0 074 pressures High and Low side to equalize during the shut down period The valve will shut off completely at approxi SOMALIE mately 100 PSIG 22 30 bleed valves used on some other models will
104. ng Valve De Energized Indoor V Outdoor Coil J Coil Accumulator Thermostatic Expansion Valve Bi Flow d Filter Dryer Check Valve 30 SYSTEM OPERATION EXPANSION VALVE CHECK VALVE ASSEMBLY EXPANSION VALVE CHECK VALVE ASSEMBLY IN COOLING OPERATION IN HEATING OPERATION lt Most expansion valves used in 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 IN COOLING 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 31 SYSTEM OPERATION AFE18 60A CONTROL BOARD DESCRIPTION The AFE18controlis designed for use in heat pump applica tions wherethe indoor coilis located above downstream of a 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 rest
105. ng 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 ASZ16 ASZ16 ASZ16 ASZ16 ASZ16 pem re EXE 048 waso X _ x x sc X x Gui wise X cuo hae X Gus wise TL TP mezePotetinkt x x gt omes emma x X lt OVENRES Heat Relay kt X X X ee e mw S a RE EE new nv T T TT LI Installed on indoor coil i Required for heat pump applications where ambient temperatures fall below 0 F with 50 or higher relative humidy Field in amp alled 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 18 ACCESSORIES ASZ18 Pet em EE unam e _ E eum Emus eum Freeze Protection x x buses memes ense 1 X outdoor Themostat osa x x _ mw mw a LL pw wm XY Installed on indoor coil Required for heat pum
106. noeuuoo pue saJiM 1019 440 WdO 9y 10 1010UJ 10u Dulsslul 009 10 uue1s s soo JO p8JIMSIUJ OEA pZ W42 ye 5 pue suonneg 3A231109 a qissod 5 Nea SIOJOW peeds WF 20 9 GANNILNOD LHVHO 45 SERVICING S 16C CHECKING ECM MOTOR WINDINGS 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 Disconnectthe 5 pin and 16 pin connectors from the ECM power head 2 Removethe2screws securing the ECM power head and separate it from the motor 3 Disconnect the 3 pin motor connector from the power head and lay it aside 4 Using an ohmmeter check the motor windings for con tinuity to ground pins to motor shell If the onmmeter indicates continuity to ground the motor is defective and must be replaced 5 Using an ohmmeter check the windings for continuity pin to pin If no continuity is indicated the thermal limit overload device may be open Allow motorto cool and retest 3 pin motor
107. not be designated 1 Air handler must either be on medium or high speed C Circuit breaker option 2 Air handler must be on high speed Heat kit requires three phase power supply 3 For static pressure of 0 6 or higher air handler must be on ar hich need 22 ACCESSORIES ELECTRICHEAT KIT APPLICATIONS ARUF ARUF1729 ARUF1824 ARUF1931 ARUF3030 ARUF3642 ARUF3743 ARUF4860 1 16 1 16 1 16 1 16 1 16 1 16 1 16 HKR 03 HKR 05 HKR 05C HKR 06 HKR 08 HKR 08C HKR 10 HKR 10C Revision level that may or may not be designated Circuit breaker option Heat kit requires 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 00A1A 00A1B 00A1B 00A1B 00A1B X gt HKR 10 HKR 10C HKR 15C HKR 20C HKR 21C HKR3 15 HKR3 20 Revision level that may or may not be designated C Circuit breaker option Heat kit requires three phase power supply 1 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 higher air handler must be on medium or high speed 23 ACCESSORIES ELECTRIC HEAT KIT APPLICATIONS AEPF AEPF183016 AEPF303616 AEPF313716 AEPF426016 HKR 10 HKR 10C HAR 15C oe 200 EM HKR 21 pq Revision level that may or
108. nout 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 aburnout 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 damaging additional components Use AMANA brand part number RF000127 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 SERVICING 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 Removetheliquid line drier and expansion valve 3 Purge all remaining components with dry nitrogen or carbon dioxide until clean
109. o do so may cause property damage personal injury or death 34 SERVICING S 1 CHECKING VOLTAGE 1 Remove outer case control panel cover etc from unit being tested With power ON LA WARNING wu Line Voltage now present 2 Usingavoltmeter measurethe voltage across terminals L1 andL2ofthe contactor forthe condensing unitor atthe field connections for the air handler or heaters 3 Noreading indicates open wiring open fuse s no power or etc from unit to fused disconnect service Repair as needed 4 With ample voltage at line voltage connectors energize the unit 5 Measure the voltage with the unit starting and operating and determine the unit Locked Rotor Voltage NOTE If checking 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 6 Lockrotor voltage should read within the voltage tabula tion as shown If the voltage falls below the minimum voltage check the line wire size Long runs of
110. ofthe scroll members and the discharge process inner portion are continuous Some design characteristics of the Compliant Scroll com pressor are Compliant Scrollcompressors are more tolerant 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 Compliant Scroll compressors use white oil which is compatible with 3GS 3GS oil may be used if additional oil is required Compliantscrollcompressors 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 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 100 A solenoid in the compressor controlled by an external 24 volt ac signal moves
111. onnect 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 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 forthe blower motor in cooling and heat pump heating demands when G is energized 52 During a cooling or heat pump heating demand 24Vac is supplied to terminal G of the EBTDR to turn on the blower 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 power to the blower motor When the G input is removed 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 side of this set of contacts is connected to the heat sequencer on the heater
112. ontacts 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 defrostthermo stat is still closed the defrost board will automatically terminate the defrost cycle 5 6 When the defrost cycle is terminated the contacts ofthe HVDR relay on the defrost board will close to start the outdoor fan andthe contacts of the LVDR relay will open and turn off the reversing valve and electric heater s The unit will now be back in anormal heating mode with a heat pump demand for heating as described in the Heating Operation in section 4 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 t
113. oor Unit must be connected to Y at the condenser The orange jumper wire from terminal Y1 to terminal on the VSTB inside the MBE AEPF must remain connected 1 0 Cooling Operation 1 1 Onademand for cooling the room thermostat energizes and Y and 24Vacis supplied to G and Y Y2 ofthe MBE AEPF unit The VSTB inside the MBE AEPF 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 5 and 6 The VSTB will supply 24Vac to Y at the condenser and the compressor and condenser are turned on 1 2 When the cooling 15 satisfied the room thermo stat removes the 24Vacfrom G and Y The MBE 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 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 HH1 on the electric heater assembly 2 2 HR1 contacts M1 and M2 will close within 10 to 20 seconds and turn on heater element 41 At the same time if
114. oors 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 3 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 ofthe MBE AEPF The VSTB will supply 24Vac 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 demand Y is satisfied and then the
115. oration of power this 3 minute timed off delay will be initiated The compressor won tbe allowedto 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 temperature 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 inpu
116. os T ER RE Feo 2 39 9 Fo r Sr T 35 2 as T T 1 s 20 os 9 L 2 2 55 500 wo s 2 3e 4 50 00 s 2 57 s z 39 55 Fw s 3s 17 25 34 10 s 2 39 22 32 2 2000 s 2 5 ss ELECTRIC HEATER CAPACITY BTUH HTR 3 0 4 7 6 0 7 0 9 5 14 2 19 5 21 0 EM KW KW KW KW KW KW KW 10200 16200 20400 23800 32400 48600 66500 71600 FORMULAS Heating Output KW x 3413 x Corr Factor Actual 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 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 m
117. osition Variable Speed Painted Flowrator Introduction of R 22 Only Air Handlers A Single Piece E Multi Position Variable Speed Painted Flowrator AEPF A Single Piece S Multi Position EEM motor Painted Flowrator ASPF Introduction of 3 Ton Air Handler units with 3 row coil A Single Piece S Multi Position EEM motor Painted Flowrator Introduces new ASPF Air Handlers A Single Piece S Multi Position EEM motor Painted Flowrator Revision introuces modified 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 A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduces 13 SEER Dayton wall mount air handlers A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduces 13 SEER Dayton wall mount air handlers All Models will be suitable for use with R 22 and R 410A A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduces 13 SEER Dayton wall mount air handlers using a Burr Oak Louvered Fin coil A Single Piece Air Handler Wall Mount Unpainted Flowrator Revision replaces current wavey fin design with new louvered fin design A Single Piece Air Handler Wall Mount Unpainted Flowrator Introduction of AWUFS7 Air Handlers for use with R 22 and A Single Piece Air Handler Ceiling Mount N Uncased Flowrater Revision has louver fins amp replaces copper tube hairpins with aluminum hairpins
118. ost cycle will be terminated If at the end of the programmed 10 minute override time 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 ofthe 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 S 41 MBE AEPF WITH GSX SSX ASX DSX 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 Whena digital electronic thermostat is used the on off staging of the auxiliary heat will vary Refer to the installation instruc tions and wiring diagrams provided with the MBE AEPF for specific wiring connections dip switch settings and system configuration 54 MBE AEPF WITH SINGLE STAGE GSX ASX AND SSX CONDENSERS When used with a single stage GSX SSX and ASX condens ers dip switch 4 mustbe setto the on position onthe 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 Outd
119. ousing with the same cinched or crimped design used on the 80 furnace line A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces ADPF304216AC the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line E A Single Piece Downflow PSC Motor Unpainted Flowrater Revision replaces ADPF 1BA ET M T mer all ARPFcoils using wavy fin with louver enhanced fin PRODUCT IDENTIFICATION Model AEPF 16AA AEPF 16BA AEPF 16BB AEPF 16CA AEPF 1BA AEPF313716AA ASPF313716AA ASPF 16AA ASPF 16BA AWUF 1 AA AWUF 16AA AWUFS005 101AA AWUF 1BA AWUF370 16AA AWUF 16BA ACNF 1AA ACNF 16AA ACNF 1BA Single Piece Air Handlers Description A Single Piece E Multi Position Variable Speed Painted Flowrator Introducation of new 13 SEER Air Handler Models All Models will be suitable for use with R 22 and R 410A 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 Flowrator Revision replaces the current spot welded blower housing with the same cinched or crimped design used on the 80 furnace line A Single Piece E Multi Position Variable Speed Painted Flowrator Revision replaces all ARPFcoils using wavy fin with louver enhanced fin A Single Piece E Multi P
120. p 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 components when used in conjunction with an indoor coil using a non bleed thermal expansion valve refrigerant metering device 19 ACCESSORIES EXPANSION VALVE KITS 1 4 FLARE CONNECTION For Applications requiring N x BULBTO BE LOCATED afield installed access fitting AT 10 OR 2 O CLOCK SUCTION LINE EVAPORATOR COIL 1 4 FLARE Jm CONNECTION 1 SEAL SUPPLIED W KIT SEAL SUPPLIED W KIT EXPANSION VALVE REMOVE BEFORE INSTALLING EXPANSION VALVE 7 8 NUT For Applications not requiring afield installed access fitting BULB TO BE LOCATED AT 10 OR 2 OCLOCK 4 SUCTION LINE EVAPORATOR COIL SEAL SUPPLIED W KIT EXPANSION VALVE DISTRIBUTOR BODY 0 ed REMOVE BEFORE SEAL SUPPLIED W KIT INSTALLING EXPANSION VALVE 7 8 NUT OT EHR18 60 OUTDOOR THERMOSTAT amp EMERGENCY HEAT RELAY ACCESSORIES FSK01A FREEZETHERMOSTAT KIT Install Line Thermos
121. r a height difference of 15 25 feet between indoor and outdoor units Install 2 oil traps for a difference of 26 50 feet 3 for 51 100 feet and 4 for 101 150 feet 0 Fig 7 Oil Trap Placement 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 adequate for the length used since it will be increased in along line application Initial System Charging R 410A condensers are factory charged for 15 feet ofline set To calculate the amount of extra refrigerant in ounces needed for a line set over 15 feet multiply the additional length of line set by 0 6 ounces Note for the formula below the linear feet of line set is the actual length of liquid line or suction line since both should be equal used not the equivalent length calculated for the suction line 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 set applications Instal
122. rangement allows for a variety of mix matching possibilities providing greater flexibility The MBE blower cabinet uses a variable speed motor that maintains a con stant airflow with a higher duct static It is approved for applications with cooling coils of up to 0 8 inches W C external static pressure and includes a feature that allows airflow to be changed by 1590 The MBR blower cabinetuses a motor Itis approved for applications with cooling coils of up to 0 5 inches W C external static pres sure The MBR MBE blower cabinets with proper coil matches can be 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 insula tion having a vapor barrier equivalent to ductwork insulation providing local codes permit The CAPX CHPX 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 models 25 PRODUCT DESIGN The ASX 16 amp 18 ASZ 16 181 DSX16 and DSZ16 series split system units use a two stage scroll compres
123. rcuits With Ohmmeter 5 2 5 3 Open Fan Overload Test Continuity of Overload S 17A Faulty Thermostat Test Continuity of Thermostat amp Wiring 5 3 Faulty Transformer Check Control Circuit w ith Voltmeter S4 Shorted or Open Capacitor e Test Capacitor 5 15 Internal Compressor Overload Open Test Continuity of Overload S 17A Shorted or Grounded Compressor Test Motor Windings S 17B Compressor Stuck Use Test Cord S 17D Faulty Compressor Contactor Test Continuity of Coil 8 Contacts S 7 5 8 Faulty Fan Relay Test Continuity of Coil And Contacts S 7 Open Control Circuit Test Control Circuit w ith Voltmeter S 4 Low Voltage Test Voltage S 1 Faulty Evap Fan Motor or Replace 5 16 Shorted or Grounded Fan Motor Motor Windings 5 16 Improper Cooling Anticipator Check Resistance of Anticipator S 3B Shortage of Refrigerant Test For Leaks Add Refrigerant S 101 103 Restricted Liquid Line 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 Inspect Filter Clean or Replace Dirty Indoor Coil Inspect Coil Clean Not enough air across Indoor Coil Blow er Speed Duct Static Press Filter S 200 Too much air across Indoor Coil Reduce Blow er Speed S 200 Overcharge of Refrigerant o Recover Part of
124. re used with Heat Kits only 5 EBTDR has a 7 second on delay when is energized and a 65 second off TR 1 IF REPLACEMENT OF THE ORIGINAL WIRES SUPPLIED WITH THIS ASSEMBLY IS NECESSARY USE WIRE THAT CONFORMS TO THE NATIONAL ELECTRIC CODE delay when 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 76 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 BK SOM LOA FL HTR3 TL PU BK PC FL HTR4 TL BK a N N BL z ox EBTDR 2 R G f ON I L PU BL TR NO ES i ya E XFMR R Y a BL COM 1 we N s NC Pa SPEEDUP Mic w 6 Y BL BK R L1 L2 L L2 ce 14 EQUIPMENT GROUND USE COPPER OR ALUMINUM WIRE Typical Wiring Schematic MBR Blower with
125. robe in turn to each lead Ifthe windings do nottest continuous or a reading is obtained from lead to ground replace the motor S 16B CHECKING FAN AND BLOWER MOTOR ECM MOTORS AnECMis an 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 is acharacteristic of the motor not an indication of defective bearings WARNING wi Line Voltage now present 1 Disconnect the 5 pin connector from the motor 2 Using meter check for line voltage at terminals 4 amp 5 atthe power connector If no voltage is present 3 Check the unit for incoming power See section 5 1 gt Check the control board See section S 40 5 Ifline voltage is present reinsert the 5 pin connector and remove the 16 pin connector 6 Check for signal 24 volts at the transformer 7 Check for signal 24 volts from the thermostat to the
126. rough the scroll flanks Equalization requires only about 1 2 second Topreventthe 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 Two quick ways to test a capacitor are a resistance and a capacitance check START CAPACITOR CAPACITOR CONTACTOR HARD START KIT WIRING 5 15 RESISTANCE CHECK 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 WARNING Discharge capacitor through a 20 to 30 OHM resistor before handling 42 CAPACITOR TESTING CAPACITOR RESISTANCE 2 Setan 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
127. sed by the serviceman when evacuating air non condensables 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 a high vacuum pump capable of producing a vacuum equivalent to 25 microns absolute and a thermocouple vacuum gauge to give a true reading of the vacuum in the system NOTE Neverusethe system compressor as a vacuum pump or run when under a high 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 open the 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 R 410A MANIFOLD v LOW SIDE HIGH SIDE m 2 G
128. sor The two step modulator has an internal unloading mechanism that opens a bypass port in the first compression pocket effectively 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 6796 capacity A single speed high efficiency motor continues to run while the scroll modulates between the two capacity Bypass Ports Bypass Ports Closed Open 100 Capacity 67 Capacity FIGUREA A scroll is an involute spiral which when matched with a mating scroll form as shown generates a series of crescent shaped gas pockets between the two members During compression one scroll remains stationary fixed scroll whilethe otherform orbiting scroll is allowed to orbit but not rotate around the first form 26 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
129. t If the coil test continuous and 24 volts is present at the coil terminals the valve is inoperative replace it S 24 TESTING DEFROST CONTROL Tocheckthe defrost control for proper sequencing proceed as follows With power ON unit not running 1 Jumper defrost thermostat by placing a jumper wire across the terminals DFT and R at defrost control board 2 Connect jumper across test pins on defrost control board 3 Setthermostatto for heating System should go into defrost within 21 seconds Immediately remove jumper from test pins 5 Using check for voltage across terminals C amp Meter should read 24 volts 6 Using VOM check for voltage across fan terminals DF1 and DF20nthe board You should readline voltage 208 230 indicating the relay is open in the defrost mode 7 Using VOM checkfor voltage across W2 amp C terminals on the board You should read 24 volts 8 Ifnotas 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 5 25 TESTING DEFROST THERMOSTAT 1 Installathermocouple 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 ofthe control Part 0130M00009P which is use
130. t 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 32 TROUBLESHOOTING CHART COOLING HP ANALYSIS CHART System Complaint No Cooling Operating Pressures 2 3 2 2 8 s 8 5 POSSIBLE CAUSE lt 5 5 5 o SIBEILILISIS IE els 5 18 DOTSINANALYSIS amp 2 2515 S S GUIDE INDICATE 2 5 5 5 5 8 e le d POSSIBLECAUSE 5 S 5 s 5 S 212 2 2 9 3 5 2 1218 sis g g 8 2 2 o 2 9 2 2 2 8 21855 5 91215 1515 0 8 Sis 575 2 5 9 2 2 15 leis isis 2 5 5 5 5 5 8 8 88 5 5 lx 575 5 S s 5 5 2 5 F 2 O O 5 12 3 3 rx Pow er Failure Test Voltage S 1 Blow n Fuse Inspect Fuse Size amp Type S 1 Unbalanced Pow er 3PH Test Voltage S 1 Loose Connection Inspect Connection Tighten S 2 S 3 Shorted or Broken Wires e o Test Ci
131. t integrity of the hermetic compressor The terminals and their dielectric 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 FILL A CYLINDER MORE THAN 80 FULL OF LIQUID REFRIGERANT NEVER ADD ANYTHING OTHER THAN R 22 TO AN R 22 CYLINDER OR R 410A To 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 To 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 TO A LEAK OR EXPLOSION ENSURE THE HYDROSTATIC TEST DATE DOES NOT EXCEED 5 YEARS ENSURE THE PRESSURE RATING MEETS OR EXCEEDS 400 LBS WHEN IN DOUBT DO NOT USE CYLINDER d 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
132. t pump is turned on in the cooling mode 3 3Whenthe cooling demandis satisfied the room thermo statremoves the 24Vac from and Y Y2 ofthe MBE AEPF andthe VSTB removes the 24Vac from Y atthe 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 thermostatis setto the heating mode the reversing valve is not energized Aslong as the thermostat is 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 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 24Vac is supplied to and Y Y2 of the 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 24Vacto Y atthe heat pump and the heat pump is turned on in the heating mode 4 2 Ifthe first stage heat demand cannot be satisfied by the heat pump the temperature ind
133. tandards Used refrigerant may cause compressor damage and will void the warranty Most portable machines cannot clean used refrigerant to meet AHRI standards AX 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 Aninaccurately charged system will cause future prob lems 1 Whenusing an ambient compensated calibrated charg ing cylinder allow liquid refrigerant only to enter the high side 2 Afterthe 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 ofthe refriger ant through the low side NOTE should be drawn out ofthe storage container or drumin liquid form due to its fractionation properties but should be Flashed to its gas state before entering the System There are commercially available restriction de vices that fit into the system charging hose set to accom plish this DO NOT charge liquid R410A into the compres sor 4 With the system still running close the valve on the charging cylinder At this 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 hi
134. tat Here Install Line Thermostat Here Wire Nut a Bs X EUN IU p NN ut WW amp y SS Wire Nut WIS ASCO1A ANTI SHORT CYCLE CONTROL KIT SHORT CYCLE PROTECTOR UNIT TERMINAL BOARD ACCESSORIES COIL ACCESSORIES p CAF enero CHF cscrmw X X X X x amp 3 7 HKR SERIES ELECTRIC HEAT KITS I EN qi ELECTRIC HEAT KIT APPLICATIONS MBR amp MBE ELECTRIC HEAT KIT menoon _____ NE __ X il MBR1600AA 1AA _ NEM NEN x x x x x gt x CEN eoa _ x x x x _ x x x x x x x x x x xj x X Allowable combinations Circuit 1 Single Phase for Air Handler Motor Revision level that my or may not be designated Restricted combinations Circuit 2 3 Phase for HKR3 Heater Kits Circuit Breaker option ELECTRIC HEAT KIT APPLICATIONS ARPF o Pe tane ans _ 1 16 1 16 1 16 1 16 1 16 1 16 X X X X X X L X X j X X O HKR 06 X HKR3 20 Revision level that may or may
135. terminal at the 16 pin connector 8 Usinganohmmeter check for continuity from the 1 amp 3 common pins to the transformer neutral or C thermo statterminal If you do not have continuity the motor may function erratically Trace the common circuits locate and repair the open neutral 9 Setthethermostatto Fan On Using a voltmeter check for 24 volts between pin 15 G and common 10 Disconnect power to compressor Set thermostat to call for cooling Using voltmeter check for 24 volts at pin 6 and or 14 11 Setthethermostattoa for heating Using a voltmeter check for 24 volts at pin 2 and or 11 for 12OVAC Power Connector Lines 1 and 2 will be connected applications only Gnd AC Line Connection AC Line Connection e 9 9 GS OUT 8 16 OUT ADJUST 7 15 G FAN 6 04 Y Y2 COOL 5 13 HUW2 DELAY 4 12 24 Vac R HEAT 2 10 BK PWM SPEED COMMON1 1 9 O REV VALVE 16 PIN ECM HARNESS CONNECTOR If you do not read voltage and continuity as described the problem is inthe control or interface board but notthe motor If you register voltage as described the ECM power headis defective and must be replaced 43 39Vd LX3N NO LHVHO Syunse1 peyoedxeun eonpoud pue 1onpoud spioA 04
136. 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 48 SERVICING S 17 CHECKING COMPRESSOR Ah 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 compressorterminal PROTECTIVE COVER and gas 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 coveris not properly in place andifthe 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
137. thermostat removes the 24Vac from G and Y1 The VSTB removes 24 Vac from Y atthe 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 setto the heating mode the reversing valve is not energized Aslong as the thermostat is 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 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 and Y 1 and 24Vac is supplied 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 compressor will start on high speed and outdoor fan will start on low speed on a Y1 heating demand but the blower motor will deliver only 6096 of the programmed cfm for high speed heating operation 4 2
138. to 12 degrees superheat of the suction gas Before checking the superheat or replacing the valve perform allthe 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 saturation temperature corresponding toits pressure The degree of superheat equals the degrees oftemperature increase above the saturation temperature at existing pressure See Temperature Pressure Chart on following pages AX 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 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 66 Superheat Formula Suct Line Temp Sat Suct Temp EXAMPLE a Suction Pressure 143 b Corresponding Temp 50 c Thermometer on Suction Line 61 F To obtain the degrees temperature of superheat subtract 50 0 from 61 0 F
139. transformer 2 WARNING ee Disconnect ALL power before servicing 1 Remove control panel cover or etc to gain access to transformer With power ON WARNING wa Line Voltage now present 2 Usingavoltmeter check voltage across secondary volt age side oftransformer R to C 3 Novoltage 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 With power ON WARNING wa Line Voltage now present Apply 24 VAC to terminals R and R Should read 24 VAC at terminals Y and Y Remove 24 VAC at terminals R and R Should read 0 VAC at Y and Reapply 24 VAC to R1 and R2 within approximately three 3 to four 4 minutes should read 24 VAC at Y and If not as above replace relay a
140. uJeu redau 440 uin JO OUJ UI suid pejeesun W49 21129 ye O YH M A 5 10 O9UU09 sseuJeu ui suid payeasun Des JO YOOUD JO OUJ 0 OLA OEZ 10 umop pue dn save JO uo ou pas aloso JOJOW JO EWU SI 9 dn serejoso 1O1ON YIM zuo Sioto No3 peg 1ueujeoe dai 2 yeys uo 1969 100 yeys uo 1464 5 jeeuM euns IYEN Jaye SURG IGIBUESSOOLIOL OO 9S007 Jredai old 440 Jamod uin 1 1 110 9849 Wels 1u0w S4901 J0 O N yeys 1461 JO ues 2 uim 159 peg 1 uOM 1 SseuJeu uo sseuJeu 12 suld pejeesun 10 429u2 ul p le sun 1o ouu
141. uction line dill valve until the head pressure is reduced to normal 3 Observe the system while running a cooling performance test If a shortage of refrigerant is indicated then the system contains non condensables 68 S 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 most of the refrigerant will be Ifthe pressureindicates a highertemperature than that of the 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 5 115 COMPRESSOR BURNOUT When a compressor 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 refrigerant hosetothe liquid line dill valve and properly remove and dispose of the 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 3or 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 bur
142. 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 460 208 230 NOTE When operating electric heaters on voltages other than 240 volts refer to the System Operation section on electric heaters to calculate temperature rise 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 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 S 3A THERMOSTAT AND WIRING WARNING Line Voltage now present With power ON thermostat calling for cooling 1 Useavoltmeterto check for 24 volts at thermostat wires C and Y in the condensing unit control panel 2 Novoltage indicates trouble in the thermostat wiring or externaltransformer source 3 Checkthe continuity ofthe thermostat and wiring Repair
143. unit that has a Copeland Jaa N Scroll compressor inside coa Once attached Comfort Alert provides around the clock Compressor 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 on following page Bold ino shows feid installed wiring Dashed line shows thermostat domand wiring in system without HTCO HPCO CPCO and ECB Comfort Alert Diagrosbcs Module i 1 O O Schematic Abbreviation Descriptions HTCO High Temperature Cut Out Switch Compressor Contactor HPCO High Pressure Cut Out Switch ECB Electronic Control Board LPCO Low Pressure Cut Out Switch Defrost Or Time Delay 39 SERVICING DIAGNOSTICS TABLE 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 e
144. ury or death 1 Never open a system that is under vacuum Air and moisture will be drawn in 2 Plugor 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 4 Cleanthe inside of all new tubing to remove oils and pipe chips 5 When brazing sweep the tubing with dry nitrogen to prevent the formation of oxides on the inside surfaces 6 Complete any repair by replacing the liquid line drier inthe system evacuate and charge 60 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 Theuseofaheatshield 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 1
145. utdoor 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 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 defrostthermo stat is still closed the defrost board will automatically terminate the defrost cycle 5 6 Whenthe defrost cycle is terminated the contacts ofthe HVDR relay on the defrost board will close to start the outdoor fan andthe contacts ofthe LVDR relay will open andturn offthe 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 thermostatis used the on off sta
146. 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 and turn off the heater element s blower motor ramps downto 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 must be setto the OFF position on the VSTB inside the MBE AEPF The Y 1 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 connected to Y atthe heat pump The Y2 output from the indoor thermostat must be connected to the yellow wire labeled Y Y2 inside the wire 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 Y1 to terminal onthe VSTB inside MBE AEPF must be removed On heat pump units when the room thermostat is set to the cooling mode 24Vac is supplied to terminal O of the VSTB inside the MBE unit The VSTB will supply 24Vac to
147. xtremely 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 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 Compr
148. y removing 1 haripin Special High Feature Split X Condenser 14 Seer condensing units Introduces IAD SSX140421A in 29 base pan Special High Feature Split X Condenser 14 Seer condensing units Revision for SSX140421BA SSZ140421B in 29 base pan and it willthe reduce the unit charge from 180 oz to 170 oz and replace the 1 4 hp outdoor unit motor with 1 6 hp motor SSX14030 421AE 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 140421CA Goodman 14 SEER R 410A Condensers using Quantum Leap Coils Special High Feature Split X Condenser 16 Seer condensing units Introduces Goodman PAR 16 SEER AC 410A Special High Feature Split X Condenser 16 Seer condensing units New revisions have screw locations moved in the top panel base pans louvers and control box covers Special High Feature Split X Condenser 16 Seer condensing units New revisions have SSX160 1AB mm screw locations moved in the top panel base pans louvers and control box covers DSX160 4AA Deluxe Split X Condenser 16 Seer condensing units Introduces Goodman 2 stage 16 SEER condensing units with R 410A SSX140 1AB SSX160 1AB PRODUCT IDENTIFICATION Split System Air Conditioners R410A Model Description Amana Brand Split X Condenser 13 Seer condensing units Initial releas

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