Home

Friedrich SQ05N10 Air Conditioner User Manual

1. MODEL NUMBER FRIEDRICH SERIAL NUMBER AIR CONDITIONING CO SAN ANTONIO TX Assembled in Mexico MODEL NUMBER Es PURCHASE DATE SERIAL NUMBER 00219 VOLTS 60 2 1PH UNIT IDENTIFICATION KuhlQ Model Number Code SQ08N 10 9th Digit Engineering Suffix Indicates Modification Subject to change 1st Digit Function E Electric Heat 5 Straight Cool 8th Digit Marketing Suffix Indicates Modification Subject to change 7th Digit Options 0 Straight Cool 1 1 KW Heat Strip Nominal 2nd Digit Chassis Size Digit Voltage 1 115 Volts 5th Digit Model Series Year Introduced 3rd and 4th Digit Approximate N 2012 BTU HR in 1000s Cooling Heating BTU Hr capacity listed in the Specification Performance Data Section RAC Serial Number Identification Guide Serial Number 00001 Decade Manufactured 1 0 6 Production Run Number A 1 0 4 0 7 2 5 8 Manufactured Product Line A 1 0 4 0 7 Kuhl 2 5 8 F 6 4 9 Month Manufactured A Jan D Apr G Jul B Feb H Aug L Nov F Jun J Sept M Dec PERFORMANCE EVAP AIR TEMP DEG F PRESSURES ELECTRICAL RATINGS per BREAKER FUSE COOLING CONDENSER Discharge Temp Suction Temp Super Heat Sub Co
2. tee 22 25 Seguence or Operatloti TU RUNE 26 R 410A Sealed System Repair Considerations 2 Ya daga c saa 27 Sealed Refrigeration System risas 28 33 compressor omm 34 35 Compressor Heplacel mil iiu vea 36 37 26 eee ee o standard Filter Cleaning installation Instructions 38 OUTING RR m 39 40 After Maintenance Repair Start Up Checklist and 41 Perormance Test Data eee RE cmi 42 How to Check the Diagnostic Codes aio sass e DT 43 Erasing M BIS 85 8190 EEE a ee eee 43 Enor OSS 44 Golipressor Test MOQE E E EE 45 TOUTS SO ONS MEE acct 46 52 EE 53 54 lmermistor 5 51 12 14 52122 1 TU Tm 55 Instructions for using Cooling Load Estimate Form eu 56 Load Estimate FOr m m 58 59 mH c eT 60 62 teneis
3. Add values to S and C to R together and check resistance from start to run terminals S to R Resistance S to R should equal the total of C to S to R In a single phase PSC compressor motor the highest value will be from the start to the run connections S to R The next highest resistance is from the start to the common connections S to The lowest resistance is from the run to common C to R Before replacing a compressor check to be sure it is defective GROUND TEST Use an ohmmeter set on its highest scale Touch one lead to the compressor body clean point of contact as a good connection is a must and the other probe in turn to each compressor terminal If a reading is obtained the compressor is grounded and must be replaced Check the complete electrical system to the compressor and compressor internal electrical system check to be certain that compressor is not out on internal overload Complete evaluation of the system must be made whenever you suspect the compressor is defective the compressor has been operating for sometime a careful examination must be made to determine why the compressor failed NOTE OHM Figures are for examples only not actual values for the compressor 3 16 OHMS 49 OHMS 3 65 OHMS RESISTANCE RESISTANCE EQUALS RESISTANCE Stoc StoR Many compressor failures are caused by the follo
4. 01109003 TOUCH UP SPRAV 12 02 Addendum 1 Schedule Table with Saving Values Pre Programmed Residential Schedule Option 3 Wed Thur tart Time tart Time ool System Mode ool System Mode uto f Fan Mode uto Mode Fan Speed 5 et Point 8 et Point Cool et Point Heat 0 et Point Heat art Time 0 tart Time ool System Mode ool System Mode uto f Fan Mode to Fan Mode ow Fan Speed an Speed 5 et Point Cool et Point Cool et Point Heat et Point Heat Period Sun tart Time tart Time tart Time ystem Mode Cool System Mode Cool System Mode an Mode Auto Mode Auto Fan Mode an Speed L an Speed Lo an Speed et Point Cool 78 et Point Cool 178 et Point Cool et Point Heat 70 et Point Heat 170 et Point Heat tart Time 0 tart Time 00 art Time ystem Mode Cool System Mode Cool System Mode an Mode to Fan Mode to Fan Mode an Speed an Speed Low Fan Speed et Point Cool 85 et Point Cool 85 et Point Cool et Point Heat 2 et Point Heat 16 et Point Heat tart Time 180 tart Time 00 stem Mode stem Auto Fan Mode Auto an Speed w Fan Speed et Point Cool 78 et Point Cool et Point Heat 0 et Point Heat 170 tart Time 200 Start Time 20 ystem Mode Cool System Mode Cool System Mode an Mode t an Mode Auto Fan Mode an Speed Low Fan Speed Low Fan Speed et Point Cool 82 et Point Cool 82 et Point
5. TIMER SPEED SCHEDULE MODE Normal display Erasing the Diagnostic Codes SYSTEM E 1 T SET POINT FAN TIMER SPEED SCHEDULE F Press and hold the and WN buttons simultaneously for 3 sec SYSTEM FAN MODE FAN TIMER SPEED SCHEDULE The will blink for 3 seconds D l SET POINT FAN TIMER SPEED SCHEDULE After the blinks for 3 seconds the displav returns to normal 43 CODES 1 Front Panel Button Stuck For Continue to monitor for Unstuck switch Do not process switch Than 20 Seconds input os 42 Open relavs until voltage is back within specs Resume operation Indoor Temperature Sensor is Open or jSet temp to 75 F in COOLING or 68 F HEATING Unit continues to Shorted operate Indoor Coil Temperature Sensor is Control Board sets temp to a default of 40 F Override sensor Unit Open or Shorted continues to operate Outdoor Coil Temperature Sensoris Sets temp to 20 F Override sensor Continue operation Use Elec Heat if 5 available for HEATING If not available use HEAT PUMP if outdoor temp Open or Shorted lows Shut down for 5 min Resume operation for 3 min Continues to monitor If Outdoor Coil gt grater than 175 F te
6. pre selection instructions please see 14 2 Used to turn on activate the pre selected TIMER SCHEDULE 3 To turn vour pre selction press the button once and let go The displav at bottom right will show the TIMER icon or SCHEDULE icon Ecl Example TIMER is turned ON SCHEDULE is turned ON 9 TIMER SCHEDULE TIMER FACTORY DEFAULT The TIMER is the default on new units The TIMER IB function allows you to turn the unit one time ON and one time OFF daily at the times that you select For example you can command the system to turn ON at 8 15 am and to turn OFF at 1 30 pm everyday To set the timer see pages 15 16 SCHEDULE The SCHEDULE has two options with factory pre programmed energy management settings temperature system and time settings see addendum for more information see page 14 Schedule options are 1 Residential Schedule 40 hour work week 2 Commercial Schedule 5 day business week These factory pre programmed settings can only be changed by using the WiFi FriedrichLink adaptor with which you can create your own custum program See page 10 OF 9C Select FAN MODE FAN SPEED SCHEDULE FRR132 To switch from degrees Fahrenheit to Celsius press kd buttons simultaneousiv for three seconds FAN MODE BiG TIMER SPEED SCHEDULE FRR133 An F will flash for 5 seconds and then revert t
7. Extreme care must be used if it becomes necessarv to work on equipment with power applied Failure to do so could result in serious injurv or death If the user interface does not turn on 1 Unplug unit remove the User Interface 2 Replug power cord and make sure the unit has the proper voltage and that is is turned on 3 Reconnect the user interface s wire harness Ensure it is in good condition 4 Using a voltmeter check for at plug see Image 2 and 3 5 For room temperature thermistor s voltage test see Image 2 User Interface Tests Relav Board Test Front Front Room Temperature Thermistor Voltage Test Ensure there is 5 at User Interface see Image 3 Image 1 here for 3 3VDC If no voltage or wrong voltage replace the User Interface Not used User Interface Voltage Test Check here for If no 4 voltage or wrong voltage replace relay board If voltage is OK replace User Interface Image 3 Test for If no voltage or wrong voltage replace relay board COMPONENTS TESTING CONT Testing the Relav Board Heat Relav Fuse For Heat amp Cool Units 3 15AH 250 Volts Goes Here de m 1 p Fan High Speed Fan Med Speed Fan Low Speed Indoor Coil Outdoor Coil Thermistor Thermistor Test here for 5VDC If no voltage or wrong voltage
8. Friedrich Air Conditioning Companv 10001 Reunion Place Suite 500 San Antonio TX 78216 1 800 541 6645 www friedrich com ROOM AIR CONDITIONERS LIMITED WARRANTY FIRST YEAR ANY PART If any part supplied by FRIEDRICH fails because of a defect in workmanship or material within twelve months from date of original purchase FRIEDRICH will repair the product at no charge provided room air conditioner is reasonably accessible for service Any additional labor cost for removing inaccessible units and or charges for mileage related to travel by a Service Agency that exceeds 25 miles one way will be the responsibility of the owner This remedy is expressly agreed to be the exclusive remedy within twelve months from the date of the original purchase SECOND THROUGH FIFTH YEAR SEALED REFRIGERANT SYSTEM If the Sealed Refrigeration System defined for this purpose as the compressor condenser coil evaporator coil reversing valve check valve capillary filter drier and all interconnecting tubing supplied by FRIEDRICH in your Room Air Conditioner fails because of a defect in workmanship or material within sixty months from date of purchase FRIEDRICH will pay a labor allowance and parts necessary to repair the Sealed Refrigeration System PROVIDED FRIEDRICH will not pay the cost of diagnosis of the problem removal freight charges and transportation of the air conditioner to and from the Service Agency and the reinstallation charges associated with
9. et Point Heat 62 et Point Heat 162 et Point Heat Fri Sat tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time ystem Mode an Mode an Speed 5 et Point Cool 2 et Point Heat 800 Start Time stem 5 8 et Point 0 et Point Heat 200 Start Time ool System Mode ow Fan Speed 2 et Point 2 et Point Heat Tues BE tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat art Time ystem Mode an Mode an Speed et Point Cool et Point Heat 00 Start Time stem 5 8 et Point 0 et Point Heat 200 Start Time ool System Mode uto Mode ow Fan Speed 82 et Point Cool 62 et Point Heat Bi OO uto OO uto gt gt gt T gt Ti oo 8 0 8 0 00 ool to 8 0 ct et e 0 eo 0 ool et 7 CY CY o 5 gt 5 5 5 N P d N N OV 00 N O i 00 tart Time stem Mod
10. this refrigerant raising pressure and its heat intensity temperature Therefrigerant leaves the compressor through the discharge Line as a hot High pressure gas vapor The refrigerant enters the condenser coil where it gives up some of its heat The condenser fan moving air across the coil s finned surface facilitates the transfer of heat from the refrigerant to the relatively cooler outdoor air When a sufficient quantity of heat has been removed from the refrigerant gas vapor the refrigerant will condense i e change to a liquid Once the refrigerant has been condensed changed to a liquid it is cooled even further by the air that continues to flow across the condenser coil The RAC design determines at exactly what point in the condenser the change of state i e gas to a liquid takes place In all cases however the refrigerant must be totally condensed changed to a Liquid before leaving the condenser coil Suction Evaporator 07 Metering Device Refrigerant Drier Refrigerant Strainer The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid It next will pass through the refrigerant drier if so equipped It is the function of the drier to trap any moisture present in the system contaminants and large particulate matter The liquid refrigerant next enters the metering device The metering device is a capillary tube The purp
11. Improper installation maintenance or servicing of the air conditioner unit or not following the above Safety Warnings can result in water damage to personal items or property Insure that the unit has a sufficient pitch to the outside to allow water to drain from the unit Do not drill holes in the bottom of the drain pan or the underside of the unit Failure to follow these instructions can result in result in damage to the unit and or minor to serious property damage INTRODUCTION This service manual is designed to be used in conjunction with the operation and installation manual provided with each unit This service manual was written to assist the professional HVAC service technician to quickly and accurately diagnose and repair any malfunctions of this product This manual therefore will deal with all subjects in a general nature i e All text will pertain to all models IMPORTANT It will be necessary for you to accurately identify the unit you are servicing so you can be certain of a proper diagnosis and repair See Unit Identification Register your air conditioner Model information can be found on the name plate behind the front cover Please complete and mail the owner registration card furnished with this product or register online at www friedrich com For your convenience record the model information here
12. Vacuum Pump capable of 200 microns or less vacuum o Acetylene Welder Electronic Halogen Leak Detector capable of detecting Hvdrofluorocarbon refrigerants 8 Accurate refrigerant charge measuring device such as a Balance Scales 1 2 oz accuracy b Charging Board 1 2 oz accuracy WARNING RISK OF ELECTRIC SHOCK Unplug and or disconnect all electrical power to the unit before performing inspections maintenances or service Failure to do so could result in electric shock serious injury or death 4 WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death Refrigerant Charging NOTE Because the Kuhl Q system is a sealed system service process tubes will have to be installed First install a line tap and remove refrigerant from system Make necessary sealed system repairs and vacuum system Crimp process tube line and solder end shut Do not leave a service valve in the sealed system 9 High Pressure Gauge 0 to 750 108 10 Low Pressure Gauge 30 to 200 106 11 Vacuum Gauge 0 1000 microns 12 Facilities for flowing nitrogen through refrigeration tubing during all brazing processes EQUIPMENT MUST BE CAPABLE OF 1
13. replace relay board Test for 3 3VDC If incorrect or no voltage replace electronic relay board If voltage OK check thermistor s resistance value See page 56 23 24 COMPONENTS TESTING Continued FAN MOTOR A single phase permanent split capacitor motor is used to drive the evaporator blower and condenser fan A self resetting overload is located inside the motor to protect against high temperature and high amperage conditions A WARNING ELECTRIC SHOCK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death BLOWER FAN MOTOR TEST 1 Determine that capacitor is serviceable 2 Disconnect fan motor wires from fan speed switch or system switch 3 Apply live test cord probes on black wire and common terminal of capacitor Motor should run at high speed 4 Apply live test cord probes on red wire and common terminal of capacitor Motor should run at low speed 5 Apply live test cord probes on each of the remaining wires from the speed switch or system switch to test intermediate speeds If the control is in the MoneySaver mode and the thermostat calls for cooling the fan will start then stop after approximately 2 minutes then the fan and compressor will start together approximately 2 minutes later Blower Fan Motor CAPACITORS ELECTRIC SHOCK HAZARD Turn off electric power before servicing Discharge capacitor
14. 65 7 FRIEDRICH FRIEDRICH AIR CONDITIONING CO 10001 Reunion Place Ste 500 San Antonio TX 78216 210 546 0500 210 546 0731 www friedrich com Printed in the U S A KuhlQ Serv PartsMan 5 12
15. Recovering refrigerant to EPA required levels 2 Evacuation from both the high side and low side of the system simultaneously 3 Introducing refrigerant charge into high side of the system 4 Accurately weighing the refrigerant charge introduced into the system Proper refrigerant charge is essential to proper unit operation Operating a unit with an improper refrigerant charge will result in reduced performance capacity and or efficiency Accordingly the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged Too much refrigerant overcharge in the system is just as bad if not worse than not enough refrigerant undercharge They both can be the source of certain compressor failures if they remain uncorrected for any period of time Quite often other problems such as low air flow across evaporator etc are misdiagnosed as refrigerant charge problems The refrigerant circuit diagnosis chart will assist you in properly diagnosing these systems An overcharged unit will at times return liquid refrigerant slugging back to the suction side of the compressor eventually causing a mechanical failure within the compressor This mechanical failure can manifest itself as valve failure bearing failure and or other mechanical failure The specific type of failure will be influenced by the amount of liquid being returned and the length of tim
16. press once and let go COOL MODE HEAT MODE Ea Not available on some models FAN ONLY MODE E COOL MODE TIMER SPEED SCHEDULE 103 TIMER SCHEDULE FRR104 FAN ONLV MODE TIMER SCHEDULE i l FRR105 When in the SYSTEM COOL HEAT FAN ONLY you can also select FAN MODE FAN SPEED TIMER SCHEDULE WN and The SYSTEM MODE does not change FAN MODE The button allows you to select between and modes To select press once and let go FAN AUTO FAN L MODE FAN TIMER SPEED SCHEDULE FRR112 When in the mode the fan operates only when the system has a demand to cool or heat the room Note the fan is off no fan speed icon indicating no command for cooling or heating AUTO FAN Cooling Demand SPEED FRR106 System has a demand for cooling The fan is operating at a medium speed L em SYSTEM NI SET POINT SYSTEM MODE TIMER SCHEDULE CONTINUOUS i m M DE CONTINUOUS l SET POINT TIMER SPEED SCHEDULE FRR113 In the fan mode the fan operates all the time The system periodically cools or heats the fan s airflow but the flow of air does not stop FAN SPEED The button allows you to toggle between four modes of operation LOW MEDIUM HIGH and AUTO Press once and
17. to the S or start terminal The identified terminal should always be connected to the supply line or R terminal never to the S terminal When connected properly a shorted or grounded running capacitor will result in a direct short to ground from the terminal and will blow the line fuse The motor protector will protect the main winding from excessive temperature Dual Rated Run Capacitor Hook up i i COM RED DOT RUN CAPACITOR COMPONENTS TESTING Continued HEATING ELEMENT All electric heat models are equipped with a heating element The EQO8 has a 1 15 KW element Heating Element The heating element contains a fuse link and a heater limit switch The fuse link is in series with the power supply and will open and interrupt the power when the temperature reaches 199 F or a short circuit occurs in the heating element Once the fuse link separates a new fuse link must be installed NOTE Always replace with the exact replacement The heater element has a high limit control This control is a bimetal thermostat mounted in the top of the heating element Should the fan motor fail or filter become clogged the high limit control will open and interrupt power to the heater before reaching an unsafe temperature condition The control is designed to open at 110 F 69 Test continuity below 110 F TESTING THE HEATING ELEMENT WARNING ELECTRIC SHO
18. 4 COMPONENT COMPONENT DESCRIPTION EQO8N11 A SQO5N10 A SQO6N10 A SQO8N10 A 5010 10 1 61600523 CONDENSOR 1 1 1 61600522 CONDENSOR 1 1 1 2 61600274 EVAPORATOR COIL 1 1 1 2 61600275 EVAPORATOR COIL 1 1 3 61718107 62200118 1 1 3 61718109 REPLMT 62200007 1 3 61718112 62200006 1 1 4 62601028 KIT USER INTERFACE RPLMNT KUHL SQ 1 1 1 1 4 62601030 KIT USER INTERFACE RPLMNT SVC KUHL EQ 1 5 62601024 KIT E CNTL SERV COOL EH 3SP KUHL 1 5 62601023 KIT E CNTL SERV COOL 35 KUHL Q 1 1 1 1 6 61764594 OVERLOAD 400 150 241 FSTB 1 6 61764601 OVERLOAD 260 150 241 12335 12026 1 1 6 61764605 OVERLOAD MRA12230 12008 1 1 7 61871451 FAN MOTOR 1 1 7 61871468 FAN MOTOR 1 7 61871501 FAN MOTOR 1 1 8 61929611 HEATER 1 15 KW 115V NXT WIRE 1 9 60500500 SUPPLV 1 1 1 1 1 10 61923901 CONTROL MNTG 1 1 1 1 1 11 61928801 PANEL BLWR FRONT EQ 2003 1 12 61924300 PANEL L S EQ XQ 1 1 1 1 1 13 61990700 BLOWER FRONT Q 2003 1 1 1 1 14 61990701 TOP BLOWER FRONT 1 1 1 1 1 15 60610604 BLOWER WHEEL 1 1 1 15 60610606 BLOWER WHEEL 1 1 16 61990606 SCROLL Q CHASSIS 1 1 1 1 1 17 61990500 DECK EVAP Q CHASSIS 1 1 1 1 18 61627601 SHROUD Q 1 1 1 1 1 19 61634001 CONDENSOR FAN 1 1 19 61634000 CONDENSOR FAN 1 1 1 20 61597317 INNERWALL XQ 1 1 1 1 20 61597318 INNERWALL EQ 1 21 617769
19. F for 2 Unit will use electric heat to satisfy heating demands until temp is greater consecutive Minutes than 45 F Unit must be a Heat Pump with electric heat 23 Not Applicable Not Applicable Not Applicable Not Applicable Key Sequence Action To Access Error Codes Press the fan speed and key for 3 seconds Reset Error Codes amp Error History Press 4 timer schedule for 3 seconds When you have entered the Error Codes section an E will appear Use the up and down keys to scroll through error codes Only active error codes will display Test Mode This function is used to test the compressor operation By turning it on it allows the service technician to bypass the compressor s 3 minute time delay AUTO FAN SET POINT FAN Press the buttons simultaneously for 3 seconds This will activate the test mode FAN SPEED The ON icon will appear for 5 seconds and the displav will then revert to the normal displav The test mode will time out after 1 hour To cancel test mode unplug and replug the power cord SYSTEM l SET POINT SPEED Normal displav 45 GENERAL TROUBLESHOOTING TIPS Possible Cause Possible Solution Turn the unit to the on position and raise or lower temperature setting as appropriate to call for operation The unit is turned to t
20. NEUTRAL 11 115 ELECTRIC OI 9 U HL HTR TF OVLD COMPRESSOR pl ELECTRONIC CONTROL WIRING DIAGRAM LEGEND CAP CAPACITOR D THERMISTER COMPR COMPRESSOR MIR FANMOTOR e COMBINATION TERMINAL OLP OVERLOAD PROTECTOR 4 GROUNDED LEAD SYMBOL UI USER INTERFACE Q INSULATOR TF THERMAL FUSE HL HEATER LIMIT FUSE T a 92120002 01 RESISTANCE VALUES This Table Applies to All Thermistors TEMP RESISTENCE TEMP RESISTENCE F K Ohms F Ohms 0 56 4452 81 9 2133 5 49 6839 82 9 0275 10 43 8591 83 8 8459 15 38 8118 84 8 6683 20 34 4303 85 8 4947 25 30 6103 86 8 3250 26 29 9068 87 8 1593 27 29 2218 88 7 9973 28 28 5546 89 7 8388 29 27 9048 90 7 6839 30 27 2717 91 7 5324 31 26 6550 92 7 3841 32 26 0540 93 7 2391 33 25 4698 94 7 0973 34 24 9004 95 6 9586 35 24 3454 96 6 8232 36 23 8044 97 6 6906 37 23 2770 98 6 5610 38 22 7628 99 6 4341 39 22 2615 100 6 3100 40 21 7726 101 6 1885 45 19 5068 102 6 0696 50 17 5040 103 5 9533 60 14 1607 104 5 8395 65 12 7641 105 5 7283 66 12 5036 106 5 6195 67 12 2490 107 5 5129 68 12 0000 108 5 4087 69 11 7573 109 5 3065 70 11 5199 110 5 2066 71
21. SCHEDULE FRR148 If the unit is operating in the TIMER or SCHEDULE mode and you press any bytton except the button the TIMER icon begins to blink All button action is blocked q FAN 9 TIMER SPEED SCHEDULE FRR149 The TIMER icon stops blinking after 3 seconds You must turn the active TIMER or SCHEDULE mode OFF before making changes Once the changes are made press the button to re activate TIMER or SCHEDULE mode If the unit is operating in the TIMER or SCHEDULE mode and then you press any button except the button the TIMER e icon begins to blink AUTO FAN l SET POINT TIMER SPEED SCHEDULE FRR150 All button action is blocked 17 18 Remote Control Operation Remote Control Refer to Figures 10 and 11 during operation description Getting Started Install two 2 AAA batteries in the battery compartment located on the back of the unit Operation The remote control should be within 25 feet of the air conditioner for operation Refer to Figure 9 for effectiveness Press the power button to turn the remote on The remote will automatically power off after 15 seconds if the buttons are not being pressed The remote must be on to control the unit POWER Button Turns remote and unit on and off SYSTEM Button Allows the user t
22. T 63 WV ANRC mm 64 B gt gt M 9 Y P 65 PES AMIS AN NS SIS NC C 65 IMPORTANT SAFETV INFORMATION The information contained in this manual is intended for use bv a qualified service technician who is familiar with the safetv procedures required for installation and repair and who is equipped with the proper tools and test instruments required to service this product Installation or repairs made unqualified persons can result in subjecting the unqualified person making such repairs as well as the persons being served by the equipment to hazards resulting in injury or electrical shock which can be serious or even fatal Safety warnings have been placed throughout this manual to alert you to potential hazards that may be encountered If you install or perform service on equipment it is your responsibility to read and obey these warnings to guard against any bodily injury or property damage which may result to you or others Your safety and the safety of others are very important We have provided many important safety messages in this manual and on your appliance Always read and obey all safety messages This is a Safety Alert symbol This symbol alerts you to potential hazards that can kill or hurt you and others All safety messages will follow the safety alert symbol wi
23. created by the compressor causes the refrigerant to leave the evaporator through the suction line as a cool low pressure vapor The refrigerant then returns to the compressor where the cycle is repeated Liquid Line 29 30 R 410A SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL ONLY MODELS REQUIRE THE INSTALLATION OF ALIQUID LINE DRIER EQUIPMENT REQUIRED Voltmeter Ammeter Ohmmeter E P A Approved Refrigerant Recovery System OL IN Vacuum Pump capable of 200 microns or less vacuum o Acetylene Welder Electronic Halogen Leak Detector capable of detecting Hvdrofluorocarbon refrigerants 8 Accurate refrigerant charge measuring device such as a Balance Scales 1 2 oz accuracy b Charging Board 1 2 oz accuracy WARNING RISK OF ELECTRIC SHOCK Unplug and or disconnect all electrical power to the unit before performing inspections maintenances or service Failure to do so could result in electric shock serious injury or death 4 WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death Refrigerant Charging NOTE Because the KuhlQ system is a sealed system service process
24. e R 4IOA pressure is approximately 60 higher than R 22 pressure e R 410A cylinders must not be allowed to exceed 125 they may leak or rupture e 410 must never be pressurized with a mixture of air it may become flammable e Servicing equipment and components must be specifically designed for use with R 410A dedicated to prevent contamination e Manifold sets must be equipped with gauges capable of reading 750 psig high side and 200 psig low side with a 500 psig low side retard e Gauge hoses must have a minimum 750 psig service pressure rating e Recovery cylinders must a minimum service pressure rating of 400 psig DOT 4BA400 and DOT BW400 approved cylinders e POE Polvol Ester lubricants must be used with R 410A equipment e To prevent moisture absorption and lubricant contamination do not leave the refrigeration system open to the atmosphere longer than 1 hour e Weigh in the refrigerant charge into the high side of the system e Introduce liquid refrigerant charge into the high side of the system e For low side pressure charging of R 410A use a charging adaptor e Use Friedrich approved R 410A filter dryers only 27 28 R 410A SEALED REFRIGERATION SYSTEM REPAIRS IMPORTANT SEALED SYSTEM REPAIRS TO COOL ONLY MODELS REQUIRE THE INSTALLATION OF ALIQUID LINE DRIER EQUIPMENT REQUIRED Voltmeter Ammeter Ohmmeter E P A Approved Refrigerant Recovery System OL IN
25. evaporator coil is correct lcing Restricted Refrigerant Svstem Troubleshooting a restricted refrigerant svstem can be difficult The following procedures are the more common problems and solutions to these problems There are two tvpes of refrigerant restrictions Partial restrictions and complete restrictions A partial restriction allows some of the refrigerant to circulate through the svstem With a complete restriction there is no circulation of refrigerant in the system Restricted refrigerant systems display the same symptoms as low charge condition When the unit is shut off the gauges may equalize very slowly Gauges connected to a completely restricted system will run in a deep vacuum When the unit is shut off the gauges will not equalize at all A quick check for either condition begins at the evaporator With a partial restriction there may be gurgling sounds Accumulator Suction Pressure Indoor Coil Deep Vacuum Compressor at the metering device entrance to the evaporator The evaporator in a partial restriction could be partially frosted or have an ice ball close to the entrance of the metering device Frost may continue on the suction line back to the compressor Often a partial restriction of any type can be found by feel as there is a temperature difference from one side of the restriction to the other With a complete restriction there will
26. latches and remains in to resume normal operation LCDI Power Cord Trips Reset Button Pops Out Electrical overload overheating or Once the problem has been determined and cord pinching can trip Reset button corrected press and release RESET listen for pops out the LCDI power cord click Reset button latches and remains in to resume normal operation NOTE Adamaged power supply cord must be replaced with a new power supply cord obtained from the product manufacturer and must not be repaired The return discharge air grille is Ensure that the return and or discharge air blocked paths are not blocked by curtains blinds furniture etc Windows or doors to the outside are Ensure that all windows and doors are closed The temperature is not set at a cool Adjust the Temperature control to a cooler enough warm enough setting warmer setting as necessary Unit Does Not Cool Heat The filter is dirty or obstructed Clean the filter See Routine Maintenance or Room Sufficiently Or Cycles remove obstruction On And Off Too Frequently The indoor coil or outdoor coil is Clean the coils See Routine Maintenance or dirty or obstructed remove obstruction Be sure to use exhaust vent fans while cooking There is excessive heat or moisture or bathing and if possible try not to use heat cooking showers etc in the room producing appliances during the hottest part of the day The temperature of the ro
27. press the TIMER SET button Figure 4 Page 15 AUTO SET POINT SPEED SCHEDULE FRR136 The displav reverts to the normal displav NOTE The schedule options 1 and 2 have factorv pre programmed settings which can only be changed by using the WiFi FriedrichLink adaptor an accessory With it you can create your own custom schedule program See page 10 for more information NOTE Once you have selected the TIMER 8 you must first set the following before turning it on 1 Set time and day 2 Set start time 3 Set stop time See timer settings on next page To Turn On the Timer or Schedule Selected FAN MODE FAN 9 SPEED TIMER SCHEDULE FRR139 Press the button and let go The system will operate in the mode mode option 1 2 or Timer you selected At the above image TIMER is selected and turned on TIMER SETTINGS 1 Set time and day 2 Set start time 3 Set stop time e e e TIMER HOUR MIN SET SET TIME AND DAY To adjustthe unit s time press and hold the HOUR and the MIN buttons for three seconds Refer to Figure 4 FAN SPEED FRR128 The unit s current hour displays Use the P buttons to adjust the hour To change from AM to PM continue to increment roll the display Pr
28. speed see page 10 10 Kuhl Control Options The K hl gives you a variety of options for control programming and scheduling including wireless capabilities Wireless Programming and Control The new FriedrichLink Adapter sold seperately allows you to conviently control program and monitor your air conditioning unit remotely from a smartphone or computer FriedrichLink Adapter accessory available through Friedrich authorized retailers or www friedrich com See FriedrichLink Adapter section on www friedrich com for complete details Pre Programmed Scheduling Options Your unit s digital control comes equipped with a 24 hour timer and two pre programmed 7 day energy management options 24 Hour Timer The 24 hour timer allows you to turn the unit off and on at pre set times by setting an on and off time on the unit control panel See page 11 for details on timer set up Pre programmed Energy Management Your unit comes from the factory with two 2 Pre programmed Energy Management settings are shown in Addendum 1 Residential amp Commercial Schedule Table Energy Management Schedule Options are 1 Residential Schedule 40 Hr Work Week 2 Commercial Schedule 5 Day Business Week Figure 3 The Residential 40 Hr Work Week Schedule has four 4 time periods 06 00 08 00 18 00 and 22 00 This option will cause your K hl Q unit to raise the room temperature temporarily to 85 F during
29. the filter Use mild soap solution if necessarv Allow filter to drv Install the filter back into the unit Follow the Instructions on the inside of the front door E 22 f p 2 sl i b KI A jA 2 2 gt 12 lt V V FILTER 22777777 y M NN SERE NN lt lt UN A FILTER FRAME N INSTRUCTIONS 76 SCREW 8 1 2 PHILLIPS HEAD SEE ILLUSTRATION ITEM 2 22 2 REQUIRED 1 SIDE FRR098 ROUTINE MAINTENANCE WARNING ELECTRIC SHOCK HAZARD Turn off electric power before inspections maintenances or service Extreme care must be used if it becomes necessarv to work on equipment with power applied Failure to do so could result in serious injurv or death WARNING EXCESSIVE WEIGHT HAZARD Use two people to lift or carrv the unit and wear proper protective clothing Failure to do so result in personal injurv A WARNING CUT SEVER HAZARD Be careful with the sharp edges and corners Wear protective clothing and gloves etc Failure to do so could result in serious injurv NOTICE Units are to be inspected and serviced bv qualified service personnel oniv Use proper protection on surrounding property Failure to follow this notice could result in moderate or serious propertv damage NOTICE Do not use a caustic coil cl
30. the hours when most people are away at work lower them again to 78 F prior to the time when most people will return home and then raise slightly to 82 F to maintain a comfortable temperature overnight The Commercial 5 Day Business Week Schedule has two 2 time periods 07 00 and 18 00 This option will cause your air conditioner to raise temperatures to 84 F after typical working hours and on weekends when commercial spaces are typically unoccupied See Control Panel Operation Instructions Section Customizable Programming Options Customizable schedules with up to four temperature adjustments per day can either be uploaded to the unit via the conditioner s built in micro USB interface or conveniently transmitted wirelessly using the new FriedrichLink Adapter accessory greatly simplifying the programming of one or multiple units See Figure 7 See www friedrich com for complete Customizable Programming instructions Smart Grid The Kuhl Unit is also able to be controlled by a Smart Grid Smart Grid is a network that brings electricity from power stations to consumers using new technologies that allow power companies to adjust electrical loads of residential users Check with your local electric company to learn more about Smart Grid programs in your area aa LR FRR203 Control Panel Operation Instructions SVSTEM The button allows you to sequentially select three modes of operation To select
31. the minutes Press the TIMER SET button Figure 4 within 15 seconds to exit and save the setting The timer is now set to start at 4 21 AM The display will return to normal 15 16 Set theTimer Stop Time AUTO FAN 5 MODE l 5 SPEED SCHEDULE FRR144 The displav shows a normal svstem Press and hold the MIN button Figure 4 for 3 seconds Note the Timer start stop times be set even when the svstem is in the Schedule mode SPEED FRR145 Use the Por kd button to adjust the hour Press the TIMER SET button Figure 4 to advance to the Minutes section MODE i li gt SPEED SCHEDULE FRR146 Use the PX or button to adjust the minutes Press the TIMER SET button Figure 4 within 15 seconds to exit and save the setting The timer is now set to stop at 11 55 AM The displav returns to normal Turning the TIMER ON once the time and dav the start and top times have been set TIMER Press the button once and let go NOTE See the following TIMER ON OFF scenarios Timer ON Scenarios Scenario 1 FAN AUTO FAN MODE SET POINT FAN SPEED SCHEDULE FRR156 The display shows a normal operating system TIMER SPEED SCHEDULE FRR157 If the Timer function is turned ON during the Timer
32. with a 20 000 Ohm 2 Watt resistor before handling Failure to do so may result in personal injury or death Many motor capacitors are internally fused Shorting the terminals will blow the fuse ruining the capacitor A 20 000 ohm 2 watt resistor can be used to discharge capacitors safely Remove wires from capacitor and place resistor across terminals When checking a dual capacitor with a capacitor analyzer or ohmmeter both sides must be tested Capacitor Check with Capacitor Analyzer The capacitor analyzer will show whether the capacitor is open or shorted It will tell whether the capacitor is within its micro farads rating and it will show whether the capacitor is operating at the proper power factor percentage The instrument will automatically discharge the capacitor when the test switch is released Capacitor Connections The starting winding of a motor can be damaged by a shorted and grounded running capacitor This damage usually can be avoided by proper connection of the running capacitor terminals From the supply line on a typical 230 volt circuit a 115 volt potential exists from the R terminal to ground through a possible short in the capacitor However from the S or start terminal a much higher potential possibly as high as 400 volts exists because of the counter EMF generated in the start winding Therefore the possibility of capacitor failure is much greater when the identified terminal is connected
33. 03 FAN MOTOR BRACKET 1 1 21 61776900 FAN MOTOR BRACKET 1 1 1 22 61619517 COVER TOP Q CHASSIS VENTED 1 1 1 1 1 23 91400402 COMPRESSOR STUD 3 3 3 3 3 24 61028900 COMPRESSOR GROMMET 3 3 24 61028901 COMPRESSOR GROMMET 3 24 61028903 COMPRESSOR GROMMET 3 3 25 61626312 BASEPAN Q CHASSIS 1 1 1 25 61626313 BASEPAN Q CHASSIS 1 25 61626314 BASEPAN Q CHASSIS 1 26 61638400 DRAIN PAN 1 1 1 1 27 61825725 ASSY OUTER SHELL KUHL Q REPLMT 2012 1 1 1 1 1 28 61627212 CHANNEL SILL SQ 1 1 1 1 29 61627314 SUPPORT TOP SQ 1 1 1 30 62400437 ASSY KIT DECORATIVE FRONT SVC KUHL Q 1 1 1 1 31 62400726 ASSY FILTER MESH Q 1 1 1 1 32 61680205 ASSY CURTAIN AND FRAME Q 1 1 1 33 61717300 GASKET CHASSIS SEAL UV RES Q 1 1 1 1 4 61619405 08 1 61715800 COUNTER WEIGHT 2 2 2 2 2 60179904 CONDENSATE DRAIN VALVE 1 60062720 STRAP CAPACITOR 1 1 1 1 1 61080530 40 5 370 2 0 1 1 61080532 CAPACITOR 45 7 5 370V 2 0 1 1 61080594 CAPACITOR 55 7 5 370V 2 0 1 62601029 KIT REMOTE CONTROL RPLMNT SVC KUHL 1 1 1 1 1 61818523 EXPANDED METAL GRILLE PAINTED KUHLQ 1 1 1 1 60169120 SCRIPT FRIEDRICH 2010 FESTOON 1 1 1 1 1 62601027 KIT SENSOR RPLMNT SVC KUHL THERMISTOR SET 1 1 1 1 1 03760545 CAPILLARV TUBE 1 1 03760568 CAPILLARV TUBE 03760513 CAPILLARV TUBE 1 61834800 STRAINER 312 COIL 1 1 1 1 1 61828202 LIQUID DRIER 1 1 1 1 1 60217902 SEAL FAN MOTOR TO INNER WALL 1 1 1 1 1 01900235 DC 2
34. 11 2879 111 5 1088 72 11 0611 112 5 0130 73 10 8392 113 4 9192 74 10 6223 114 4 8276 75 10 4103 115 4 7378 76 10 2029 116 4 6500 77 10 0000 117 4 5639 78 9 7965 118 4 4796 79 9 5977 119 4 3971 80 9 4033 120 4 3163 56 INSTRUCTIONS FOR USING COOLING LOAD ESTIMATE FORM FOR ROOM AIR CONDITIONERS AHAM PUB NO RAC 1 This cooling load estimate form is suitable for estimating the cooling load for comfort air conditioning installations which do not require specific conditions of inside temperature and humiditv The form is based on an outside design temperature of 95 F dry bulb and 75 F wet bulb It can be used for areas in the continental United States having other outside design temperatures by applying a correction factor for the particular locality as determined from the map The form includes day factors for calculating cooling loads in rooms where daytime comfort is desired such living rooms offices etc The numbers of the following paragraphs refer to the corresponding numbered item on the form 1 Multiply the square feet of window area for each exposure by the applicable factor The window area is the area of the wall opening in which the window is installed For windows shaded by inside shades or venetian blinds use the factor for Inside Shades For windows shaded by outside awnings or by both outside aw nings and inside shades or venetian blinds use the factor for Outside Awnings S
35. CK HAZARD Disconnect power to the unit before servicing Failure to follow this warning could result in serious injury or death Testing of the elements can be made with an ohmmeter across the terminals after the connecting wires have been removed A cold resistance reading of approximately 10 11 ohms for the 1 15 KW heater should be registered DRAIN PAN VALVE During the cooling mode of operation condensate which collects in the drain pan is picked up by the condenser fan blade and sprayed onto the condenser coil This assists in cooling the refrigerant plus evaporating the water During the heating mode of operation it is necessary that water be removed to prevent it from freezing during cold outside temperatures This could cause the condenser fan blade to freeze in the accumulated water and prevent it from turning To provide a means of draining this water a bellows tvpe drain valve is installed over a drain opening in the base pan This valve is temperature sensitive and will open when the outside temperature reaches 40 The valve will close gradually as the temperature rises above 40 F to fully close at 60 F Bellows Assembly Drain Pan For EQ08N11 Only 25 26 REFRIGERATION SEQUENCE OPERATION A good understanding of the basic operation of the refrigeration system is essential for the service technician Without this understanding accurate troubleshooting of refrigeration system problems will be mor
36. IAL Sizing your air conditioner correctly is vital Sizing Guide The following guide is based on normal room insulation average number of sun exposed windows and two person occupancy Btu h This is a general guide Please consult manual J or M for exact load calculations 1 000 1 222 21 000 1 If heavilv shaded 10 2 If very sunny add 10 3 500 2 1 600 1 00 28 000 4 BTU H if area is a kitchen 1900 2700 36 000 Due to variations in room design climate zone and occupancy larger areas may require the use of multiple units to provide the optimal cooling solution How to Check the Diagnostic Codes See codes chart on next page SVSTEM TN 1 9 AUTO m SET POINT TIMER SCHEDULE FAN SPEED To check the active system errors press the EH amp WN keys for 3 sec SYSTEM FAN MODE FAN TIMER SPEED SCHEDULE An E will appear in the display Use the FN keys to scroll through any system errors Only active errors will be shown The display error mode will time out in 15 seconds with no key activity SYSTEM FAN MODE FAN TIMER SPEED SCHEDULE Press the PN key to view the next error Press the SELECT key to exit SYSTEM E AUTO l SET POINT
37. NG Before Operating Vour Unit Make sure the wiring is adequate for your unit If you have fuses they should be of the time delay type Before you install or relocate this unit be sure that the amperage rating ofthe circuit breaker or time delay fuse does not exceed the amp rating listed in Table 1 DO NOT use an extension cord The cord provided will carry the proper amount of electrical power to the unit an extension cord may not Make sure that the receptacle is compatible with the air conditioner cord plug provided This insures proper grounding If you have a two prong receptacle you Will need to have it replaced with a grounded receptacle by a certified electrician The grounded receptacle should meet all national and local codes and ordinances Under no circumstances should you remove the ground prong from the plug You must use the three prong plug furnished with the air conditioner Testthe power cord All Friedrich room air conditioners are shipped from the factory with a Leakage Current Detection Interrupter LCDI equipped power cord The LCDI device meets the UL and NEC requirements for cord connected air conditioners effective August 2004 To test your power supply cord 1 Plug power supply cord into a grounded 3 prong outlet 2 Press RESET See Figure 1 3 Press TEST listen for click the RESET button trips and pops out 4 Pressandrelease RESET Listen for click RESET button latches and remains in The powe
38. NLY the frost will disappear Setting the thermostat a little warmer will probably prevent the frosting from recurring Noises All air conditioners make some noise Friedrich units are designed to operate as quietly as possible An air conditioner mounted in a wall is quieter than one mounted in a window It is important to ensure that the chassis seal gasket Item 14 is properly installed refer to installation instructions 41 42 ROOM AIR CONDITIONER UNIT PERFORMANCE TEST DATA SHEET DATE MODEL SERIAL YES NO IS THERE A FRIEDRICH SLEEVE INSTALLED IS THERE A CHASSIS SEAL GASKET INSTALLED IS MAINTENANCE BEING PERFORMED If NO is checked use back of sheet for explanation ELECTRICAL LINE VOLTAGE STATIC sis MAGIS STARTUP VOLTAGE VOLTS AMPERAGE DRAW wee AMPS COOL AMPERAGE DRAW AMPS HEAT COMPRESSOR LOCKED ROTORAMPS AMPS RUNNING AMPS AMPS LOCKED ROTOR VOLTAGE VOLTS INDOOR TEMPERATURES INDOOR AMBIENT TEMPERATURE RELATIVE HUMIDITV INDOOR COOL HEAT DISCHARGE AIR TEMPERATURE INDOOR F RETURN AIR TEMPERATURE INDOOR ee F DIFFERENTIAL en mecs F OUTDOOR TEMPERATURE OUTDOOR AMBIENT TEMPERATURE F RH OUTDOOR e CONDENSER DISCHARGE TEMPERATURE OUTDOOR E cse INTAKE AIR TEMPERATURE OUTDOOR Eus muscas DIFFERENTIAL re EET APPLICATION USE ROOM RESIDENTIAL OR COMMERC
39. No Inside Outside Area Shades Shades Awnings X Factor 60 25 20 Use 80 2b only 19 20 the 75 200 largest 110 2 load 150 2 Use 120 oniv one Heavv Construction 30 20 60 30 9 SUBTOTAL fexus 10 TOTAL COOLING LOAD BTU per hour to be used for selection of room air conditioner s d Total in Item 9 X Factor from Map 57 58 LOAD FORM The heat load form on the following page mav be used servicing personnel to determine the heat loss of a conditioned space and the ambient winter design temperatures in which the unit will heat the calculated space The upper half of the form is for computing the heat loss of the space to be conditioned It is necessary only to insert the proper measurements on the lines provided and multiply by the given factors then add this result for the total heat loss in BTU Hr F The BTU Hr per F temperature difference is the 70 F inside winter designed temperature minus the lowest outdoor ambient winter temperature of the area where the unit is installed This temperature difference is used asthe multiplier when calculating the heat loss The graph shows the following Left Hand Scale Unit capacity BTU Hr or heat loss BTU Hr Bottom Scale Outdoor ambient temperature base point Heat Pump Model BTU Hr capacity heat pump will deliver at outdoor temperatures Maximum BTU Hr heat pump will deliver at indicated ambient tempe
40. Provide good air flow Make sure the airflow to and from the unit is clear Your air conditioner puts the conditioned air out at the top of the unit and takes in unconditioned air at the bottom Airflow is critical to good operation It is just as important on the outside of the building that the airflow around the unit exterior is not blocked Unit placement If your air conditioner can be placed in a window or wall that is shaded by a tree or another building the unit will operate even more efficiently Using drapes or blinds on the sunny side of the dwelling will also add to your unit s efficiency Insulation Good insulation will be a big help in maintaining desirable comfort levels Doors should have weather stripping Be sure to caulk around doors and windows Proper installation of chassis seal gasket Make sure the seal gasket has been installed properly to minimize noise and improve efficiency If the chassis seal gasket has not been installed please refer to Step 14 of the installation instructions Kuhl Q Control Panel Operation Let s check out how to control your air conditioner On the control panel just above the POWER is a liquid crystal display LCD All of the control panel function buttons and mode icons can be viewed in Figure 6 Power On Press the button to turn on the air conditioner The power button illuminates to indicate that the power is on The backlight on the power switch will automatically dim to 20 in
41. Service Parts Manual 7 FRIEDRICH 2012 Room Air Conditioners SS ey it AN NN 9 fs lia B AQ S li RNC JA H No 8 it 1 TIGGIIOIXA FRIEDRICH Q Chassis Models Kuhl 115 Volt 005 10 SQ06N10 SQ08N10 SQ10N10 Cool Only 115 Volt 8 11 Cool and Electric Heat KuhlQ Serv Parts Man 4 12 Last character may vary 93001401 01 Table Of Contents important gt Ve Cy Je m 2 4 tgs ce cmm 4 5111 911410 terz Do oL 5 FG POR INNING LUG a 6 AS SSS 6 2 2 gt d 6 Installation Information Sleeve Urt RR ger Ra eR RN cob CHER AC 6 zwi B i T 7 CTO he Wie CNN ae recs r r 8 For Best Cooling Performance and Energy Efficiency 8 Kuhl Q Control Panel Operation and Symbols Identification 9 URP Een a 10 Control Panel Operation Instructions NN mm 11 17 Remote Contool 8 10 110 ene ae ee ene ne 18 19 Electronic Control Sequence of Operation ta 20 21 Sopo Enea e E
42. THE DURATION OF THIS EXPRESS WARRANTY MANUFACTURER EXPRESSLY DISCLAIMS AND EXCLUDES ANY LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGE FOR BREACH OF ANY EXPRESSED OR IMPLIED WARRANTY Performance of Friedrich s Warranty obligation is limited to one of the following methods 1 Repair of the unit 2 Arefund to the customer for the prorated value of the unit based upon the remaining warranty period of the unit 3 Providing a replacement unit of equal value The method of fulfillment of the warranty obligation is at the sole discretion of Friedrich Air Conditioning NOTE Some states do not allow limitations on how long an implied warranty lasts or do not allow the limitation or exclusion of consequential or incidental damages so the foregoing exclusions and limitations may not apply to you OTHER This warranty gives you specific legal rights and you may also have other rights which vary from state to state PROOF OF PURCHASE Owner must provide proof of purchase in order to receive any warranty related services All service calls for explaining the operation of this product will be the sole responsibility of the consumer All warranty service must be provided by an Authorized FRIEDRICH Service Agency unless authorized by FRIEDRICH prior to repairs being made 10 08 CUSTOMER SATISFACTION and QUALITY ASSURANCE Friedrich is a conscientious manufacturer concerned about customer satisfaction product quality and controlling warranty cos
43. be no sound at the metering device entrance An amperage check of the compressor with a partial restriction may show normal current when compared to the unit specifi cation With a complete restriction the current drawn may be considerably less than normal as the compressor is running in a deep vacuum no load Much of the area of the condenser will be relatively cool since most or all of the liquid refrigerant will be stored there The following conditions are based primarily on a system in the cooling mode Reversing Valve Head Pressure Lower Outdoor Coll Gauges will not equalize with unit shut off Completely Restricted System Accumulator Indoor Coil Suction Pressure Q Lower Outdoor Coil Gauges may equalize very slowly Partially Restricted System 33 34 COMPRESSOR CHECKS WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Extreme care must be used if it becomes necessarv to work on equipment with power applied Failure to do so could result in serious injurv or death Locked Rotor Voltage L R V Test Locked rotor voltage L R V is the actual voltage available at the compressor under a stalled condition Single Phase Connections Disconnect power from unit Using a voltmeter attach one lead of the meter to the run R terminal on the compressor and the other lead to the common terminal of the com pressor Restore pow
44. charge problems The refrigerant circuit diagnosis chart will assist you in properly diagnosing these systems An overcharged unit will at times return liquid refrigerant slugging back to the suction side of the compressor eventually causing a mechanical failure within the compressor This mechanical failure can manifest itself as valve failure bearing failure and or other mechanical failure The specific type of failure will be influenced by the amount of liquid being returned and the length of time the slugging continues Not enough refrigerant undercharge on the other hand will cause the temperature of the suction gas to increase to the point where it does not provide sufficient cooling for the compressor motor When this occurs the motor winding temperature will increase causing the motor to overheat and possibly cycle open the compressor overload protector Continued overheating of the motor windings and or cycling of the overload will eventually lead to compressor motor or overload failure Method Of Charging Repairs The acceptable method for charging RAC system is the Weighed in Charge Method The weighed in charge method is applicable to all units It is the preferred method to use as it is the most accurate The weighed in method should always be used whenever a charge is removed from a unit such as for a leak repair compressor replacement or when there is no refrigerant charge left in the unit To charge by thi
45. e an Mode an Speed et Point Cool et Point Heat art Time 00 Start Time stem uto f ow Fan Speed 8 et Point Cool 0 et Point Heat 200 art Time ool System Mode ool System Mode ut an Mode ut an Mode ow Fan Speed Low Fan Speed 2 et Point Cool 2 et Point Cool 62 et Point Heat 2 et Point Heat tart Time stem Mode an Mode an Speed et Point Cool et Point Heat tart Time gt TI gt ct mn gt c ct mn N N ow 8 0 200 NA Ww OW 78 X TES ct NIN i o ct N N N Q Q C C gt 5 gt gt 2 gt o gt N O OV 2 2 S Pre Programmed Commercial Schedule Option 3 Thur tart Time ystem Mode n Mode an Speed et Point Cool et Point Heat tart Time ool f System Mode to Fan Mode ed Fan Speed ed Fan Speed et Point Cool 4 Set Point Cool 4 et Point Cool et Point Heat 2 et Point Heat 2 et Point Heat tart Time ystem Mode n Mode n Speed et Point Cool et Point Heat 0 tart Time 0 2 Tues L I ua ey tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time 0 ystem Mode Cool System Mode Cool Sys
46. e consumer through the AHAM Room Air Conditioner Certification Program can be certain that the AHAM Certification Seal accurately states the unit s cooling and heating capacity rating the amperes and the energy efficiency ratio All models use environmentally Estimated yearly operating cost based on a 2007 national average electricity cost of 10 65 cents per kWh friendly R 410A refrigerant Installation Information Sleeve Dimensions Thru the wal Installation Depth Shell Depthto Minimum Minimum Window Width Finished Hole with Front Louvers E Sleeve Height Width Into Room Qutside Minimum Maximum Height Width Max Depth C Minimum extensions when mounted in a window Minimum widths achieved using one side curtain assembly as opposed to both in a standard installation Circuit Rating Breaker Circuit Rating Plug Breakeror Face PowerCord Wall Outlet T D Fuse NEMAH Length ft Appearance SIDE VIEW SQ05N10 5006 10 SQ08N10 5010 10 EQ08N 11 125V 15A Window Mounting Kits Heat Cool Models EQ08 N11 Friedrich heat cool models include accessories for thru the wall installation only Window mounting requires use of optional accessory kit as listed above ELECTRICAL DATA WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation All electrical connections and wiring MUST be installed by a qualified electrician and conform t
47. e difficult and time consuming if not in some cases entirely impossible The refrigeration system uses four basic principles laws in its operation they are as follows 1 Heat always flows from a warmer body to a cooler body 2 Heat must be added to or removed from a substance before a change in state can occur 3 Flow is always from a higher pressure area to a lower pressure area 4 The temperature at which a liquid or gas changes state is dependent upon the pressure The refrigeration cycle begins at the compressor Starting the compressor creates a low pressure in the suction line which draws refrigerant gas vapor into the compressor The compressor then compresses this refrigerant raising pressure and its heat intensity temperature Therefrigerant leaves the compressor through the discharge Line as a hot High pressure gas vapor The refrigerant enters the condenser coil where it gives up some of its heat The condenser fan moving air across the coil s finned surface facilitates the transfer of heat from the refrigerant to the relatively cooler outdoor air When a sufficient quantity of heat has been removed from the refrigerant gas vapor the refrigerant will condense i e change to a liquid Once the refrigerant has been condensed changed to a liquid it is cooled even further by the air that continues to flow across the condenser coil The RAC design determines at exactly what point
48. e of nitrogen requires a pressure regulator Follow all safety procedures and wear protective safety clothing etc Failure to follow proper safety procedures result in serious injury or death 8 Pressurize with a combination of R410 A and nitrogen and leak test all connections with an electronic or Halide leak detector Recover refrigerant and repair any leaks found Hepeat Step 8 to insure no more leaks are present 9 Evacuate the system with a good vacuum pump capable of a final vacuum of 200 microns or less The system should be evacuated through both liquid line and suction line gauge ports While the unit is being evacuated seal all openings on the defective compressor Compressor manufacturers will void warranties on units received not properly sealed Do not distort the manufacturers tube connections CAUTION FREEZE HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with liquid refrigerant Failure to follow these procedures could result in minor to moderate injury 10 Recharge the system with the correct amount of refrigerant The proper refrigerant charge will be found on the unit rating plate The use of an accurate measuring device such as a charging cylinder electronic scales or similar device is necessary SPECIAL PROCEDURE IN THE CASE OF MOTOR COMPRESSOR BURNOUT WARNING ELECTRIC SHOCK HAZARD Turn off electric power before servic
49. e or installation Failure to do so may result in personal injury or death WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death WARNING EXPLOSION HAZARD The use of nitrogen requires a pressure regulator Follow all safety procedures and wear protective safety clothing etc Failure to follow proper safety procedures result in serious injury or death 1 Recover all refrigerant and oil from the system 2 Remove compressor capillary tube and filter drier from the system 3 Flush evaporator condenser and all connecting tubing with dry nitrogen or equivalent Use approved flushing agent to remove all contamination from system Inspect suction and discharge line for carbon deposits Remove and clean if necessary Ensure all acid is neutralized 4 Reassemble the system including new drier strainer and capillary tube 5 Proceed with step 8 10 on previous page ROTARY COMPRESSOR SPECIAL TROUBLESHOOTING AND SERVICE Basically troubleshooting and servicing rotary compres sors is the same as on the reciprocating compressor with only one main exception NEVER under any circumstances liquid charge a rotary compressor through the LOW side Doing so wou
50. e page 10 13 14 OR SCHEDULE 5 2 SELECTION The control system has one Timer and two Schedule functions A Timer factory default Allows you to command the unit to turn ON and OFF at a time you program Setting the start stop and day can be found latter in this manual on page 15 B Residential Schedule When selection 1 is selected the unit follows a pre programmed set of operational parameters that covers 7 days of the week with 4 time windows during each day Each time window has it s own set of 8 operating parameters Refer to Addendum 1 C Commercial Schedule When selection 22 is selected the unit follows a pre programmed set of operational parameters that covers 7 days of the week with 2 time windows during each day Each time window has it s own set of 8 operating parameters Refer to Addendum 1 To change the TIMER SCHEDULE selection press and hold the button for 3 sec then let go FAN MODE FAN SPEED SCHEDULE FRR139 The display shows the TIMER is selected Press the ZN button once and let go FAN MODE 9 SPEED TIMER SCHEDULE FRR137 The display shows option 1 Residential Schedule is selected Press the ZN button once and let go SYSTEM L SCHEDULE 9 TIMER SCHEDULE FRR138 The display shows option 2 Commercial Schedule is selected To save and exit selection
51. e starts to terminate bv shutting off the compressor After a 30 seconds delav the fan is shut off See figure below for graphic details Temp Above Set Point Cn 4 3 2 Canal Demand Threshold 1 Set Point gt Cool Demand Cycle Trigger Compressor Lock Out Compressor Delay 5 Sec Delay 30 Sec Cooling Control Electric Heat Operation in Cool with Electric Heat Units When in the Heat mode with and without Fan Mode Auto Fan cycling If the indoor ambient temperature is below the Heat Demand Threshold Heat Set Point minus 1 5 F turn on electric heat If Ambient is 0 3 above the Heat Set Point turn off the electric heat ELECTRONIC CONTROL SEQUENCE OF OPERATION CONT Compressor Lock Out Time The lockout feature ensures that the compressor is de energized for a period of time The timer varies randomly from 180 to 240 seconds The compressor lockout is initiated every time the compressor is off due to 1 Satisfying the temperature set point 2 Changing mode to fan only or heat 3 Turning the unit off 4 Control is first plugged in or power is restored after failure 5 Line power is restored from a brown out condition Wait ICON Hour Glass X The wait icon will be turned on when the compressor 15 locked out and during demand for cooling or heat pump compressor operation The Wait ICON will be turned off when the condition clears Cooling Fan Delay Fan cyc
52. e the slugging continues Not enough refrigerant undercharge on the other hand will cause the temperature of the suction gas to increase to the point where it does not provide sufficient cooling for the compressor motor When this occurs the motor winding temperature will increase causing the motor to overheat and possibly cycle open the compressor overload protector Continued overheating of the motor windings and or cycling of the overload will eventually lead to compressor motor or overload failure REFRIGERATION SEQUENCE OPERATION A good understanding of the basic operation of the refrigeration system is essential for the service technician Without this understanding accurate troubleshooting of refrigeration system problems will be more difficult and time consuming if not in some cases entirely impossible The refrigeration system uses four basic principles laws in its operation they are as follows 1 Heat always flows from a warmer body to a cooler body 2 Heat must be added to or removed from a substance before a change in state can occur 3 Flow is always from a higher pressure area to a lower pressure area 4 The temperature at which a liquid or gas changes state is dependent upon the pressure The refrigeration cycle begins at the compressor Starting the compressor creates a low pressure in the suction line which draws refrigerant gas vapor into the compressor The compressor then compresses
53. eaning agent on coils or base pan Use a biodegradable cleaning agent and degreaser to prevent damage to the coil and or base pan To Remove Wash and Replace Filter Lower front panel See Figure 2 Use handle on filter to flex filter up and out of retainer Remove filter from unit See Figure 3 Clean filter monthiv or more frequentiv if needed Clean the filters with a mild detergent in warm water and allow to drv thoroughiv before reinstalling Refer to accessories section for filter options DECORATIVE FRONT COVER The decorative front and discharge air grille mav be cleaned with a mild soap or detergent Do NOT use solvents or hvdrocarbon based cleaners such as acetone naphtha gasoline benzene etc to clean the decorative front or air discharge grilles Use a damp not wet cloth when cleaning the control area to prevent water from entering unit and possibly damaging the electronic control COILS AND BASE PAN The indoor coil evaporator coil the outdoor coil condenser coil and base pan should be inspected periodically yearly or bi yearly and cleaned of all debris lint dirt leaves paper etc Clean the coils and base pan with a soft brush and compressed air or vacuum If using a pressure washer be careful not to bend the aluminium fin pack Use a sweeping up and down motion in the direction of the vertical aluminum fin pack when pressure cleaning coils Cover all electrical components to protect them from wat
54. eparate circuit for proper voltage only Cycles on amp fused separately overload of correct rating or test cap Restricted or low air flow through Check for proper fan speed or blocked Compressor running abnormally Check for kinked discharge line or restricted Possible Cause Incorrect wiring Refer to appropriate wiring diagram Low or fluctuating voltage Unit does not turn on Defective thermistor Replace thermistor or electronic control board Possible Cause Refer to Installation Manual for proper Poorly installed PP installation Fan blade striking chassis Reposition adjust motor mount Check that compressor grommets have not Compressor vibrating deteriorated Check that compressor mounting parts are not missing Improperly mounted or loose Check assembly amp parts for looseness cabinet parts refrigerant tubes rubbing amp rattling Correct as needed Noisy operation Possible Cause Evaporator drain pan overflowing Clean obstructed drain trough Evaporator drain pan broken or cracked Reseal or replace No chassis gasket installed Condensation forming underneath base pan Install chassis gasket Poor installation resulting in rain Check installation instructions Reseal as entering the room required Water leaks into the room Dirty evaporator coil Use pressure wash Condensation on discharge grille or biodegradable cleaning agent to clean louvers Environmental pheno
55. er or spray Allow the unit to dry thoroughly before reinstalling it in the sleeve BLOWER WHEEL HOUSING CONDENSER FAN SHROUD Inspect the indoor blower and its housing evaporator blade condenser fan blade and condenser shroud periodically yearly or bi yearly and clean of all debris lint dirt mold fungus etc Clean the blower housing area and blower wheel with an antibacterial antifungal cleaner Use a biodegradable cleaning agent and degreaser on condenser fan and condenser shroud Use warm or cold water when rinsing these items Allow all items to dry thoroughly before reinstalling them ELECTRONIC ELECTRICAL MECHANICAL Periodically at least yearly or bi yearly inspect all control components electronic electrical and mechanical as well as the power supply Use proper conditioning or refrigeration thermometer to check testing instruments voltmeter ohmmeter ammeter wattmeter etc to perform electrical tests Use an air room outdoor and coil operating temperatures Use an electronic tester to measure wet bulb temperatures indoors and outdoors 39 40 ROUTINE MAINTENANCE Continued NOTICE Do not drill holes in the bottom of the drain pan or the underside of the unit Not following this notice could result in damage to the unit or condensate water leaking inappropriatelv which could cause water damage to surrounding propertv SLEEVE DRAIN Inspect the sleeve and drain system periodicall
56. er to unit Determine L R V Start the compressor with the volt meter attached then stop the unit Attempt to restart the compressor within a couple of seconds and immediatelv read the voltage on the meter The compressor under these conditions will not start and will usuallv kick out on overload within a few seconds since the pressures in the system will not have had time to equalize Voltage should be at or above minimum voltage of 197 VAC as specified on the rating plate If less than minimum check for cause of inadequate power supply i e incorrect wire Size loose electrical connections etc Amperage L R A Test The running amperage of the compressor is the most impor tant of these readings A running amperage higher than that indicated in the performance data indicates that a problem exists mechanically or electrically Single Phase Running and L R A Test NOTE Consult the specification and performance section for running amperage The L R A can also be found on the rating plate Select the proper amperage scale and clamp the meter probe around the wire to the terminal of the compres sor Turn on the unit and read the running amperage on the meter If the compressor does not start the reading will indicate the locked rotor amperage L R A External Overload The compressor is equipped with an external overload which senses both motor amperage and winding tem perature High motor temperature or am
57. erant installation 9 and oil under high pressure Extreme care must be used if it becomes Proper safety procedures must be followed necessary to work on equipment with power AWE and proper protective clothing must be worn applied AN when working with refrigerants Failure to do so could result in serious injurv or Failure to follow these procedures could death result in serious injurv or death Undercharged Refrigerant Svstems A check of the amperage drawn bv the compressor An undercharged svstem will result in poor performance motor should show lower reading Check the Unit low pressures etc in both the heating and cooling cycle Specification After the unit has run 10 to 15 minutes check the gauge pressures Gauges connected to system with an undercharge will have low head pressures and substantially low suction pressures Whenever service unit with undercharge of refrigerant alwavs suspect a leak The leak must be repaired before charging the unit To check for an undercharged svstem turn the unit on allow the compressor to run long enough to establish working pressures in the svstem 15 to 20 minutes Valve During the cooling cycle you can listen carefully at the exit Accumulator of the metering device into the evaporator an intermittent mE hissing and gurgling sound indicates a low refrigerant B door Col Mou 6 Pressure charge Intermittent f
58. ess TIMER SET Refer to Figure 4 button to save the hour and display the unit s current minutes FAN MODE TIMER SPEED SCHEDULE FRR129 Use the PX or buttons to adjust the minutes The clock is now set for 11 25 AM Press TIMER SET Refer to Figure 4 button to display the unit s day setting FAN MODE FAN SPEED FRR130 Use the PY or buttons to adjust the day 1 to 7 The day setting is up to the user If you set the current day lt 1 So if today is Tuesday then Day 1 Tuesday select 1 SYSTEM AUTO MODE l SET POINT TIMER SPEED SCHEDULE FRR131 Press TIMER SET Refer to Figure 4 button to exit and save the SET TIME function The TIMER SET button must be pressed within 15 second Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display Timer Start Time AUTO FAN MODE ll SET POINT FAN SPEED FRR140 The displav shows a normal svstem Press and hold the HOUR button Figure 4 for 3 seconds Note The Timer start stop times mav be set even when the svstem is in the Timer or Schedule mode FAN MODE SPEED SCHEDULE FRR141 Use the P or MA button to adjust the hour Press the TIMER SET button Figure 4 to adjust the minutes FAN MODE FAN SPEED FRR142 Use the P or MA button to adjust
59. he off position or the thermostat is satisfied Plug into a properlv grounded 3 prong The LCDI power cord is unplugged receptacle See Electrical Rating Tables on pg 6 for the proper receptacle type for your unit Unit does not operate Press and release RESET listen for click Reset button latches and remains in to resume operation The LCDI power cord has tripped Reset button has popped out Reset the circuit breaker or replace the fuse as applicable If the problem continues contact a licensed electrician There has been a local power The unit will resume normal operation once failure power has been restored Other appliances are being used on The unit requires a dedicated outlet circuit not the same circuit shared with other appliances An extension cord is being used Do NOT use an extension cord with this or any other air conditioner Replace with a circuit breaker or time delay fuse of the proper rating See Electrical Rating Tables on pg 6 for the proper circuit breaker fuse rating for your unit If the problem continues contact a licensed electrician The circuit breaker has tripped or the supply circuit fuse has blown Unit Trips Circuit Breaker or Blows Fuses The circuit breaker or time delay fuse is not of the proper rating The LCDI power cord can trip Reset button pops out due to disturbances on your power supply line Press and release RESET listen for click Reset button
60. in the condenser the change of state i e gas to a liquid takes place In all cases however the refrigerant must be totally condensed changed to a Liquid before leaving the condenser coil Suction Evaporator 07 Metering Device Refrigerant Drier Refrigerant Strainer The refrigerant leaves the condenser Coil through the liquid line as a warm high pressure liquid It next will pass through the refrigerant drier if so equipped It is the function of the drier to trap any moisture present in the system contaminants and large particulate matter The liquid refrigerant next enters the metering device The metering device is a capillary tube The purpose of the metering device is to meter i e control or measure the quantity of refrigerant entering the evaporator coil In the case of the capillary tube this is accomplished by design through size and length of device and the pressure difference present across the device Since the evaporator coil is under a lower pressure due to the suction created by the compressor than the liquid line the liquid refrigerant leaves the metering device entering the evaporator coil As it enters the evaporator coil the larger area and lower pressure allows the refrigerant to expand and lower its temperature heat intensity This expansion is often referred to as boiling Since the unit s blower is moving indoor air across the finned surface of
61. ingle Glass includes all types of single thickness windows and Double Glass includes sealed airspace types storm windows and glass block Only one number should be entered in the right hand column for Item 1 and this number should represent only the exposure with the largest load 2 Multiply the total square feet of all windows in the room by the applicable factor 3a Multiply the total length linear feet of all walls exposed to the outside by the applicable factor Doors should be considered as being part of the wall Outside walls facing due north should be calculated separately from outside walls facing other directions Walls which are permanently shaded by adjacent structures should be considered North Exposure Do not consider trees and shrubbery as providing permanent shading An uninsulated frame wall or a masonry wall 8 inches or less in thickness is considered Light Construction An insulated wall or masonry wall over 8 inches in thickness is considered Heavy Construction 3b Multiply the total length linear feet of all inside walls between the space to be conditioned and any uncondi tioned spaces by the given factor Do not include inside walls which separate other air conditioned rooms 4 Multiply the total square feet of roof or ceiling area by the factor given for the type of construction most nearly describing the particular application use one line only 5 Multiply the total square feet of floor area by the fac
62. ion is in compliance with all applicable national and local codes and ordinances having jurisdiction Secure components and accessories such as a decorative front Start the unit and check for proper operation of all components each mode of operation Instruct the owner or operator of the units operation and the manufacturer s Routine Maintenance NOTE log for recording the dates of maintenance and or service is recommended Present the owner or operator of the equipment with the Installation amp Operation Manual all accessory installation instructions and the name address and telephone number of the Authorized Friedrich Warranty Service Company in the area for future reference if necessary This is a warm weather appliance Your air conditioner is designed to cool in warm weather when the outside temperature is above 60 F 15 6 C and below 115 F 46 1 C so it won t cool a room if it is already cool outside Condensation is normal Air conditioners actually pump the heat and humidity from your room to the outside Humidity becomes water and your air conditioner will use most of the water to keep the outside coil cool If there is excessive humidity there may be excess water that will drip outside This is normal operation Frosting This usually occurs because of insufficient airflow across the coils a dirty filter cool damp weather or all of these Set the SYSTEM mode to FAN O
63. ir conditioning unit while cleaning Electrical component malfunction caused bv water could result in electric shock or other electricallv unsafe conditions when the power is restored and the unit is turned on even after the exterior is drv Never operate the unit with wet hands Use air conditioner on a single dedicated circuit within the specified amperage rating Use on a properly grounded outlet only Do not remove ground prong of plug Do not cut or modify the power supply cord Do not use extension cords with the unit Follow all safety precautions and use proper and adequate protective safety aids such as gloves goggles clothing adequately insulated tools and testing equipment etc Failure to follow proper safety procedures and or these warnings can result in serious injury or death REFRIGERATION SYSTEM HAZARDS Use approved standard refrigerant recovering procedures and equipment to relieve pressure before opening system for repair Do not allow liquid refrigerant to contact skin Direct contact with liquid refrigerant can result in minor to moderate injury Be extremely careful when using an oxy acetylene torch Direct contact with the torch s flame or hot surfaces can cause serious burns Make sure to protect personal and surrounding property with fire proof materials Have a fire extinguisher at hand while using a torch Provide adequate ventilation to vent off toxic fumes and work with a qualified assistan
64. ld cause permanent damage to the new compressor Available Accessories Carbon Filter Kits Each kit contains three 3 filters KWCFQ Carbon filter kit for Q chassis models Window Installation Kits Standard in K hl Models without Heat KWIKQ FriedrichLink Adapter Accessory KWIFI FriedrichLink Adapter Accessory for wireless control and additional programming options Decorative Color Front Panel Kits KWBGEQA Q Model Decorative Front Cover in Classic Beige KWBLKQA Q Model Decorative Front Cover in Black Onyx KWBLUQA Q Model Decorative Front Cover in Cobalt Blue KWPNKQA Q Model Decorative Front Cover in Pink Diamond KWREDQA Q Model Decorative Front Cover in Deep Red KWWHTQA Model Decorative Front Cover in Designer White See www friedrich com for additional accessories for your unit 3 38 Standard Filter Cleaning Installation Instructions STEP 2 STEP 1 Swing the door open and remove the filter by grasping the filter grip and pushing the filter holder upward and outward STEP 3 Figure 3 FILTER DOOR My How to Remove the Front Cover Unplug unit STEP 1 Open the Decorative Front Cover and remove the 4 screws Save to reinstall later Figure 18 UNIT COMES WITH POWER CORD ALREADY INSTALLED AND ROUTED TO THE LEFT SIDE SCREWS ATTACHING DECORATIVE FRONT COVER TO UNIT 4 REQUIRED NL 2 Clean the front frame washing the dirt from
65. le Auto mode only When unit cycles cooling ON starts the fan 5 seconds EARLY When unit cycles cooling OFF DELAYS the fan off for 30 seconds Note this fan delay is disabled during Test Mode Heating Fan Delay This is only for fan Mode Auto Fan cycles with cool heat operation and not for continuous fan mode When unit cycles Heating ON starts the fan 5 seconds EARLY When unit cycles Heating OFF DELAYS the fan off for 15 seconds Note the fan delay is disabled during Test Mode Fan Speed Change Delay Relay activation is delayed by a minimum number of seconds The default for this value is 2 seconds and is used to eliminate relay chatter Fan Only System Mode The fan is turned on and runs at the specified manually set speed Only the Fan is turned on Cool or Heat operation are off This is different than FAN MODE CONTINUOUS where the fan is on with the cool or heat operation Fan Only Rules 1 If the SYSTEM FAN ONLY MODE is selected the Auto fan mode 15 disabled and the fan mode is forced to continuous addition the auto fan speed is disabled If the user presses the fan speed key the menu will skip over the auto selection The set point temperature display is off 2 Any fan speed may be manually selected during Fan Only Mode 21 22 COMPONENTS TESTING Testing the User Interface and Relav Board WARNING ELECTRIC SHOCK HAZARD Turn off electric power before inspections maintenances or service
66. le Glass Sq Ft x 1 13 Double Glass Sq Ft x 0 61 INFILTRATION WINDOWS amp DOORS AVG Lin Ft x 1 0 Loose Lin Ft x 2 0 CEILING Area Sq Ft Insulated 6 Sq Ft x 0 07 Insulated 2 Sq Ft x 0 10 Built up Roof 2 insulated Sq Ft x 0 10 Built up Roof 1 2 insulated Sq Ft x 0 20 No Insulation Sq Ft x 0 33 FLOOR Area Sq Ft Above Vented Crawl space Insulated 1 Sq Ft x 0 20 Uninsulated Sq Ft x 0 50 Slab on Ground Lin Ft x 1 70 1 Perimeter insulation Lin Ft x 1 00 Based on Linear Feet of outside wall TOTAL HEAT LOSS PER F BTU HR F Multiply total BTU HR F X 30 and plot on the graph below at 40 F Draw a straight line from the 70 base point thru the point plotted at 40 F The intersection of this heat loss line with the unit capacity line represents the winter design heating load TEN H H H HHH H H HHH H H TOTAL LOAD bn SERRE RR E li E E B E ii E 4 E li E E E E AMBIENT TEMPERATURE F BASE POINT 59 60 Kuhl Q Chassis 2012 Parts List Kuhl Q Units 2012 Parts List 61 62 K hl Q Chassis Service Parts List
67. let go each time 3 Speed 095 During the SYSTEM mode COOL or HEAT the fan speed automatically varies depending on the difference between the unit s set point on the control panel and the actual room temperature Let me explain Say for example you re working in your garage and you open the big door for several minutes The system will sense a wide difference between the set point and the actual room temperature When this occurs the system fan speed increases to HIGH for a period of time The fan speed decreases in step as the temperature difference decreases When the room temperature matches the system s set point fan speed returns to the lowest setting and if the fan mode is on AUTO FAN the fan will stop 11 12 UP DOWN d4 arrows Pressing either P or Kd button changes the system s set point desired room temperature These buttons are also used for setting the Timer and other programming SYSTEM AUTO FAN MODE ll SET POINT FAN TIMER SPEED SCHEDULE 00 SYSTEM gt I FAN AUTO FAN MODE l SET POINT TIMER SPEED SCHEDULE HISO FRR101 One press equals 1 degree of change Holding the button down for more than 0 6 seconds starts the fast increment decrement change of the set point TIMER SCHEDULE BUTTON TIMER button has two main uses 1 Used to preselect a TIMER or SCHEDULE
68. ling on amp off NOTE Heater size on the 08 11 is 1 15 KW ELECTRONIC CONTROLS COOL ONLV 5005 10 5006 10 5008 10 5010 10 WIRING DIAGRAM USER INTERFACE INDOOR 0 AMBIENT SENSOR WHITE COMPRESSOR TERMINAL ORIENTATION MAY VARY REFER TO MARKINGS ON COMPRESSOR 9 _ J COMPRESSOR SUPPLV 11 jA TO INNER WALL MOTOR MOUNT TO ECONTROL BRACKET GREEN CAPACITOR HUE 00 BROWN SCHEMATIC NEUTRAL 1 115 VAC OVLD COMPRESSOR 5 L HERM OM ELECTRONIC CONTROL CAP LEGEND CAP CAPACITOR COMPR COMPRESSOR MTR FAN MOTOR OLP OVERLOAD PROTECTOR THERMISTER COMBINATION TERMINAL GROUNDED LEAD SYMBOL UI USER INTERFACE INSULATOR TE THERMAL FUSE HL HEATER LIMIT FUSE PART NO REV 92120001 01 53 54 ELECTRONIC CONTROLS COOL WITH ELECTRIC HEAT MODELS 08 11 USER INTERFACE 6 e INDOOR 0 AMBIENT SENSOR WHITE COMPRESSOR TERMINAL ORIENTATION MAY VARY REFER TO MARKINGS ON COMPRESSOR 858 OUTDOOR SENSOR BLUE A f COMPRESSOR RELAY BOARD INDOOR COIL SENSOR GREEN li SUPPLV CORD N C3 m P bed O LN 11 1 4l i WHITE 47 e BLACK TOINNER MOTOR TO ECONTROL BRACKET GREEN RED Al 1 T Coz BROWN HEATER SCHEMATIC
69. ll contaminate your manifold and hoses Use a Schrader valve adapter and copper tubing for burnout failures WARNING HIGH TEMPERATURES Extreme care proper judgment and all safety procedures must be followed when testing troubleshooting handling or working around unit while in operation with high temperature 3 components Wear protective safety aids such as gloves clothing etc Failure to do so could result in serious burn injury NOTICE FIRE HAZARD The use of a torch requires extreme care and proper judgment Follow all safety recommended precautions and protect surrounding areas with fire proof materials Have a fire extinguisher readily available Failure to follow this notice could result in moderate to serious property damage 3 After all refrigerant has been recovered disconnect suction and discharge lines from the compressor and remove compressor Be certain to have both suction and discharge process tubes open to atmosphere 4 Carefully pour a small amount of oil from the suction stub of the defective compressor into a clean container 5 Using an acid test kit one shot or conventional kit test the oil for acid content according to the instructions with the kit 6 If any evidence of a burnout is found no matter how slight the system will need to be cleaned up following proper procedures 7 Install the replacement compressor WARNING EXPLOSION HAZARD The us
70. mena point supply louvers upward Chassis gasket not installed Install gasket per Installation manual Downward slope of unit is too Refer to installation manual for proper steep inward installation 50 COOLING ONLV ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause 2 Action Sublimation Ensure that foam gaskets are installed in When unconditioned saturated between window panes 6 in between the outside air mixes with conditioned unit amp the sleeve Also ensure that fresh air condensation forms on the air exhaust vents on applicable models are in Water spitting cooler surfaces the closed position amp are in tact into room Follow installation instructions to ensure that D itch of installation i aiu kai a a E downward pitch of installed unit is no less than 1 4 amp more than 3 8 Clean amp advise customer of periodic cleanin Restricted coil or dirty filter B amp maintenance needs of entire unit Possible Cause Insufficient air circulation thru area E Adjust louvers for best possible air circulation to be air conditioned xcessive T d Operate in position Inadequate vapor barrier in building fave costomer structure particularly floors Possible Cause Defective thermistor Replace thermistor or electronic control board T stat or gasket not sealing thermistor allowing discharge air to short sho
71. o the National Electrical Code and all local codes which have jurisdiction Failure to do so can result in personal injury or death NOTICE FIRE HAZARD Not following the above WARNING could result in fire or electically unsafe conditions which could cause moderate or serious property damage Read understand and follow the above warning Wire Size Use ONLY wiring size recommended for single outlet branch circuit Fuse Circuit Breaker Use ONLY the correct HACR type and size fuse circuit breaker Read electrical ratings on unit s rating plate Proper circuit protection is the responsibiity of the homeowner Grounding Unit MUST be grounded from branch circuit through service cord to unit or through separate ground wire provided on permanently connected units Be sure that branch circuit or general purpose outlet is grounded Receptacle The field supplied outlet must match plug on service cord and be within reach of service cord Do NOT alter the service cord or plug Do NOT use an extension cord Refer to the table above for proper receptacle and fuse type AHAM be certain that the AHAM Certification Seal accurately states the unit s cooling and adum TE E LT The consumer through the Room Air Conditioner Certification Program can heating capacity rating the amperes and the energy efficiency ratio HACR Heating Air Conditioning and Refrigeration WARNI
72. o a normal displav To change from to C press the ZN or BA button within 5 seconds SYSTEM FAN MODE SIG FAN TIMER SPEED SCHEDULE FRR134 A C will flash for 5 seconds and then revert to a normal display ll SET POINT TIMER SPEED SCHEDULE FRR135 The F icon goes away and the icon illuminates on the normal display DIM Function There are three separate displav brightness levels AUTO 20 and full 100 To change the DIM setting press the Power button for three seconds FAN MODE FAN TIMER SPEED SCHEDULE FRR192 The 1 indicates a DIM setting of Auto factory default on new units Use the PY or M buttons to change the setting FAN MODE FAN TIMER SPEED SCHEDULE Hee FRR193 The 2 indicates a DIM setting of 20 Press the TIMER SET button within 15 seconds to save the setting Button inactivity for more than 15 seconds causes the display to time out and return to the normal operating display SYSTEM FAN MODE BiG SPEED SCHEDULE FRR194 The 3 indicates a DIM setting of 10096 full brightness Press the TIMER SET Refer to Figure 8 button within 15 seconds to save the setting Button inactivitv for more than 15 seconds causes the displav to time out and return to the normal operating displav Alerts When the filter needs to be cleaned
73. o sequentially select Cool Ed HEAT EB and FAN ONLY operation When the button is pressed the display indicates which mode has been selected via a display message Note that when the heating function is not available the system will automatically skip the HEAT mode FAN MODE Button Selects between automatic or operation In the mode the fan only turns on and off when the compressor operates or the heat function is active NOTE is not available in the FAN ONLY Mode the display indicates In the mode fan speed is determined by your selection on the button FAN SPEED Button Used to sequentially select new fan speed plus AUTO operation When the ES button is pressed the fan speed icon triangle changes to indicate the new speed level Fan speed automatically varies depending on the set temperature on the control panel and the actual room temperature For example if there is a big difference between your set temperature and the actual room temperature the system fan speed increases to HIGH It remains at this speed until the room temperature matches the set temperature TIMER SCHEDULE Button The button turns the schedule function on and off Press the button once to turn on the Schedule Residential Commercial Timer or Customized that has already been pre programmed into your unit Pressing the EEM button a second time turns the schedule function off UP and DOWN Arrows Pressing either the P UP
74. olin j Voltage PERFORMANCE DATA TEMPERATURE DEG F 4 TENTE T Suction Discharge Amps Cool Amps 60 Hertz Amps Discharge Air 2 a m www 9 nj m w SSeS Pawo fa n la Tae a s n 5 IE se Due to continuing research in new energy saving technology performance data and 8th and 9th character are subject to change without notice Rating Conditions 80 degrees F room air temp amp 50 relative humidity with 95 degree F outside air temp amp 40 relative humidity all systems use R410A Specifications ENERGVSTAR qualified Energy X Estimated Room Side Efficiency Yearly Moisture Air Net Cooling Heating Volts Cooling Cooling Heating Heating Ratio Operating Removal Circulation Weight Ship Model Capacity Btu Capacity Btu Rated Amps Watts Amps Watts Cost Pints HR CFM Sleeve Lbs Wt Kuhl 5005 10 5500 41 5006 10 5900 i 45 5008 10 7500 56 SQ10N10 9500 477 Q Chassis Kuhl Electric Heat 008 11 7500 61 Due to continuing research in new energy saving technology specifications are subject to change without notice As an ENERGY STAR partner Friedrich Air Conditioning Co has determined that the selected ENERGY STAR models meet the ENERGY STAR guidelines for energy efficiency Th
75. om you Allow additional time for the air conditioner to are trying to cool is extremely hot off a very hot room GENERAL TROUBLESHOOTING TIPS CONTINUED Possible Cause Possible Solution Unit Does Not Cool Heat Room Sufficiently Or Cycles On And Off Too Frequently continued Unit Runs Too Much The outside temperature is below 60 F 16 C The digital control is set to fan cycling mode The air conditioner has insufficient cooling capacity to match the heat gain of the room The air conditioner has insufficient heating capacity to match the heat loss of the room This may be due to an excessive heat load in the room It may also be due to an improperly sized unit This may be normal for higher efficiency air conditioners You may notice that the discharge air temperature of your new air conditioner may not seem as cold as you may be accustomed to from older units This does not however indicate a reduction in the cooling capacity of the unit Do not try to operate your air conditioner in the cooling mode when the outside temperature is below 60 16 C The unit will not cool properly and the unit may be damaged Since the fan does not circulate the room air continuously at this setting the room air does not mix as well and hot or cold spots may result Using the continuous fan setting is recommended to obtain optimum comfort levels Check the cooling capacity of yo
76. on in line temperature split across Check for oil at silver soldered connections Refrigerant leak Check for partiallv iced coil Check split across coil Check for low running Compressor relay or T stat contacts Check operation of t stat and relay Replace Stuck if contacts remain closed T stat incorrectly wired Refer to appropriate wiring diagram Thermistor shorted Replace thermistor or electronic control board Possible Cause O 0 5 Compressor relay contacts stuck Replace electronic control board Turn to higher temp setting to see if unit cycles off If not replace control board T stat does not turn unit off Refer to appropriate wiring diagrams iis for area to be Refer to industrv standard sizing chart Check wiring connections Reconnect wiring diagram Compressor runs continually amp does not cycle off Temperature set at coldest point 49 COOLING ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause 2 _ Overload inoperative Opens too Check operation of unit Replace overload if soon system operation is satisfactory Allow a minimum of 2 minutes to allow pressures to equalize before attempting to restart Instruct customer of waiting period Compressor restarted before system pressures equalized Check voltage with unit operating Check for Compressor runs other appliances on circuit Air conditioner for short periods should be in s
77. or bud DOWN button changes the desired room temperature The factory preset lower and upper limits are 60 F 16 C and 99 F 37 C These buttons are also used to navigate between function options when using the User Menu or Maintenance Mode Remote Effectiveness Hand Held Remote Has an operating range of up to 25 ft The infrared remote control signal must have a clear path to transmit the command to the air conditioning unit The remote signal has some ability to bounce off of walls and furniture similar to a television remote control The diagram below shows the typical operating range of the control in a standard room with 8 ft high ceilings TOP VIEW FRRO80 Figure 10 fan e 6 LS AUTO FAN CONTINUOUS DISPLAV 887 mm AUTO iti 5 5 TEMPERATURE UP FRIEDRICH Figure 11 FAN ONLV ICON SVSTEM MODE AUTO FAN CONTINUOUS AUTO T SCHEDULE ICON FRROS1 19 20 ELECTRONIC CONTROL SEQUENCE OF OPERATION Cooling Mode Once the ambient temperature rises past the cool demand threshold Cool Set Point 4 1 5 F see figure below and the compressor is not locked out the cooling cvcle begins As shown in the figure below the fan is started 5 seconds prior to the compressor Once the ambient temperature has been lowered to 25 F below the set point the cooling cvcl
78. or replaced the icon displavs AUTO FAN ix TIMER SPEED SCHEDULE FRR118 The alert can be dismissed by pressing the 3 seconds SET POINT Wait Icon SYSTEM FAN AUTO FAN MODE i SET POINT FAN TIMER SPEED SCHEDULE FRR120 The wait icon illuminates when the compressor lockout is active Control Panel Lock To lock the front panel controls press and hold the buttons for 3 seconds The lock icon illuminates to indicate the locked status During lockout none of the control panel buttons will operate AUTO FAN SCHEDULE MODE pa FRR116 FAN SPEED To unlock press and hold the EI buttons simultaneously for 3 seconds External Control Status The icon illuminates to indicate that the system is being controlled remotely such as from a smart grid from a power company for more information see page 12 SMART AUTO FAN ll 5 5 SPEED SCHEDULE FRR125 WiFi Connection SYSTEM D AUTO MODE ll 5 SPEED SCHEDULE FRR126 The icon illuminates to indicate that the system is receiving a Wi Fi connection for more information se
79. ose of the metering device is to meter i e control or measure the quantity of refrigerant entering the evaporator coil In the case of the capillary tube this is accomplished by design through size and length of device and the pressure difference present across the device Since the evaporator coil is under a lower pressure due to the suction created by the compressor than the liquid line the liquid refrigerant leaves the metering device entering the evaporator coil As it enters the evaporator coil the larger area and lower pressure allows the refrigerant to expand and lower its temperature heat intensity This expansion is often referred to as boiling Since the unit s blower is moving indoor air across the finned surface of the evaporator coil the expanding refrigerant absorbs some of that heat This results in a lowering of the indoor air temperature hence the cooling effect The expansion and absorbing of heat cause the liquid refrigerant to evaporate i e change to a gas Once the refrigerant has been evaporated changed to a gas it is heated even further by the air that continues to flow across the evaporator coil The particular system design determines at exactly what point in the evaporator the change of state i e liquid to a gas takes place In all cases however the refrigerant must be totally evaporated changed to a gas before leaving the evaporator coil The low pressure suction
80. perage heats the overload causing it to open breaking the common circuit within the compressor Heat generated within the compressor shell usually due to recycling of the motor is slow to dissipate It may take anywhere from a few minutes to several hours for the overload to reset Checking the External Overload A WARNING ELECTRIC SHOCK HAZARD Turn off electric power before service or installation Extreme care must be used if it becomes necessary to work on equipment with power applied Failure to do so could result in serious injury or death WARNING BURN HAZARD Certain unit components operate at temperatures hot enough to cause burns Proper safety procedures must be followed and proper protective clothing must be WOrn WA AG Failure to follow this warning could result in moderate to serious injurv With power off remove the leads from compressor termi nals If the compressor is hot allow the overload to cool before starting check Using an ohmmeter test continu across the terminals of the external overload If you do not have continuity this indicates that the overload is open and must be replaced Single Phase Resistance Test Remove the leads from the compressor terminals and set the ohmmeter on the lowest scale R x 1 Touch the leads of the ohmmeter from terminals common to start C to S Next touch the leads of the ohmmeter from terminals common to run to
81. r cord is ready for use Note The LCDI device is not intended to be used as an ON OFF switch Once plugged in the unit will operate normally without the need to reset the LCDI device If the LCDI device fails to trip when tested or if the power supply cord is damaged it must be replaced with a new power supply cord from the manufacturer Contact our Technical Assistance Line at 800 541 6645 To expedite service please have your model number available N WARNING Electrical Shock Hazard Make sure your electrical receptacle has the same configuration as your air conditioner s plug If different consult a Licensed Electrician Do not use plug adapters Do not use an extension cord Do not remove ground prong Always plug into a grounded 3 prong oulet Failure to follow these instructions can result in death fire or electrical shock CIRCUIT RATING OR TIME DELAY FUSE REQUIRED WALL RECEPTACLE 5005 5006 5008 5010 EQ08 Table 1 Figure 1 WARNING TEST BEFORE EACH USE 1 PRESS REST BUTTON 2 PLUG LCDI INTO POWER RECEPTACLE 3 PRESS TEST BUTTON RESET BUTTON SHOULD POP UP 4 PRESS RESET BUTTON FOR USE DO NOT USE IF ABOVE TEST FAILS WHEN GREEN LIGHT IS ON IT IS WORKING PROPERLY For the best cooling performance and highest energy efficiency Keep the filter clean Make sure that your air conditioner is always in top performing condition by cleaning the filter regularly
82. rature Balance Point Following is an example using the heat load form A space to be conditioned is part of a house geographically located in an area where the lowest outdoor ambient winter temperature is 407F The calculated heat loss is 184 BTU Hr F Subtract 40 F lowest outdoor ambient temperature for the geographical location from 70 F inside design temperature of the unit for a difference of 30 F Multiply 184 by 30 for a 5500 BTU Hr total heat loss for the calculated space On the graph plot the base point 70 and a point on the 40 F line where it intersects with the 5500 BTU Hr line on the left scale Draw a straight line from the base point 70 through the point plotted at 40 F This is the total heat loss line Knowing that we have a 5500 BTU Hr heat loss and we expect that our heat pump will maintain a 70 F inside temperature at 40 F outdoor ambient we plot the selected unit capacity BTU Hr of the unit between 35 and 60 on the graph and draw a straight line between these points Where the total heat loss line and the unit capacity line intersect read down to the outdoor ambient temperature scale and find that this unit will deliver the required BTU Hr capacity to approximately 30 F FRIEDRICH ROOM UNIT PUMPS BTU HR PER WALLS Linear Feet F TEMP DIFFERENCE 2 Insulation Lin Ft x 1 6 Average Lin Ft x 2 6 WINDOWS amp DOORS Area sq ft Sing
83. repair of the Sealed Refrigeration System All such cost will be the sole responsibility of the owner This remedy is expressly agreed to be the exclusive remedy within sixty months from the date of the original purchase APPLICABILITY AND LIMITATIONS This warranty is applicable only to units retained within the Fifty States of the U S A District of Columbia and Canada This warranty is not applicable to 1 Air filters or fuses 2 Products on which the model and serial numbers have been removed 3 Products which have defects or damage which results from improper installation wiring electrical current characteristics or maintenance or caused by accident misuse or abuse fire flood alterations and or misapplication of the product and or units installed in a corrosive atmosphere default or delay in performance caused by war government restrictions or restraints strikes material shortages beyond the control of FRIEDRICH or acts of God OBTAINING WARRANTY PERFORMANCE Service will be provided by the FRIEDRICH Authorized Dealer or Service Organization in your area They are listed at www friedrich com If assistance is required in obtaining warranty performance contact our customer support team See above for contact information LIMITATIONS THIS WARRANTY IS GIVEN IN LIEU OF ALL OTHER WARRANTIES Anything in the warranty notwithstanding ANY IMPLIED WARRANTIES OF FITNESS FOR PARTICULAR PURPOSE AND OR MERCHANTABILITY SHALL BE LIMITED TO
84. ronic control M boards replace if inoperative Compressor hums but cuts off on Hard start compressor Direct test compressor Compressor overload If compressor starts add starting components Epes Open shorted compressor windings Open overload Test overload protector amp replace if inoperative Open capacitor Test capacitor amp replace if inoperative Inoperative system switch Test for continuity in all positions Replace if thermistor or electronic board inoperative switch or electronic board Refer to appropriate wiring diagrams to check Broken loose or incorrect wiring Problem Possible Cause Action Fan motor does not run Test motor 8 replace if inoperative be sure Inoperative fan motor internal overload has had time to Possible Cause Oo Actin 0 0 Undersized unit Refer to industry standard sizing chart Thermistor or electronic board is bad Set to coldest position Test t stat or electronic T stat open or inoperative control board amp replace if necessary Check for continuity amp resistance Dirty filter Clean as recommended in Owner s Manual Dirty or restricted condenser or Use pressure wash or biodegradable cleaning Does not cool or evaporator coil agent to clean only cools slightly Poor air circulation Adjust discharge louvers Use high fan speed Fresh air or exhaust air door open Close doors Instruct customer on use of thi
85. rosting and thawing of the evaporator Compressor Running is another indication of a low charge however frosting thawing can also caused insufficient air over the evaporator Undercharged System Checks for an undercharged system can be made at the compressor If the compressor seems quieter than normal it is an indication of a low refrigerant charge Overcharged Refrigerant Systems of the evaporator will not be encountered because the refrigerant will boil later if at all Gauges connected to Compressor amps wil be near normal or higher system will usually have higher head pressure depending Noncondensables can also cause these symptoms upon amount of over charge Suction pressure should be To confirm remove some of the charge if conditions slightly higher improve system may be overcharged If conditions don t improve Noncondensables are indicated Whenever an overcharged system is indicated always make sure that the problem is not caused by air flow problems Improper air flow over the evaporator coil may indicate some of the same symptoms as an over charged Accumulator system Suction Pressure Noticeably High Pressure An overcharge can cause the compressor to fail since it would be slugged with liquid refrigerant Refrigerant The charge for any systemis critical When the compressor is noisy suspect an overcharge when you are sure that the air quantity over the
86. rt cycles cycle t stat Clean amp advise customer of periodic cleanin amp maintenance needs of entire unit Possible Cause 2 Action Prolonged off cvcles Check gasket Reposition or replace as needed Defective thermistor Replace thermistor or electronic control board Possible Cause Action Evaporator drain pan cracked Repair clean as required obstructed Detach shroud amp coil Clean Water compressor area Outside water remove old sealer Reseal reinstall amp check leaks Use pressure wash biodegradable cleaning agent to clean Fan blade slinger ring improperlv Adjust fan blade to 1 2 of condenser coil fin positioned pack 52 HEAT COOL ONLY ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Bad room ambient thermistor Check resistance and error codes temperature Heating cycle Problem Possible Cause Action Close doors or windows Opened doors or windows Dirty filter Clean as recommended in Owner s Manual Check heat rise across coil If unit operates Does not heat efficiently check if insulation can be added adequately to attic or walls If insulation is adequate recommend additional unit or larger one Check for adequate fan air across heater Check control for open at 110 F amp close at 100 F Shorted or opened heater Ohmmeter continuity check Heater hi limit control cyc
87. s on applicable models feature Low capacity undercharge Check for leak amp make repair Check amperage draw against nameplate If not conclusive make pressure test Compressor not pumping properly COOLING ONLV ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause Replace fuse reset breaker If repeats check Fuse blown or circuit tripped fuse or breaker size Check for shorts in unit wiring amp components Power cord not plugged in Plug it in nitdoesnotrun System switch in OFF position Set switch correctly Inoperative system switch or open Test for continuity electronic control board Loose or disconnected wiring at switch control board or other com ponents Possible Cause Dirty filter Clean as recommended in Manual Check for dirty or obstructed coil Use Restricted airflow pressure wash or biodegradable cleaning agent to clean Evaporator coil Inoperative t stat or thermistors Test for continuity freezes up Short of refrigerant De ice coil amp check for leak Inoperative fan motor Test fan motor amp replace if inoperative De ice coil Check temp differential delta T Partially restricted capillary tube across coil Touch test coil return bends for same temp Test for low running current Possible Cause Unit undersized Test cooling performance Excessive heat load replace with larger unit if needed for partiallv iced amp check Restricti
88. s OFF time the icon illuminates The control system immediately turns the unit OFF Scenario 2 s AUTO ll SET POINT TIMER SPEED SCHEDULE 58 The displav shows normal operating svstem F AUTO m SET POINT FAN TIMER SPEED SCHEDULE MODE HSG FRR159 If the Timer function is turned ON during the Timer s ON time the icon illuminates The control system immediately turns the unit OFF Timer OFF Scenarios Scenario 1 FRR166 The displav shows the unit in Timer mode during an in active OFF period MODE SET POINT FAN SPEED FRR167 If the Timer function is turned OFF during an in active OFF period the Timer e icon turns off The display shows a normal system Scenario 2 SYSTEM E __ IM AUTO 23 ll SET POINT TIMER SPEED SCHEDULE FRR168 The display shows the unit in Timer mode during an active ON period F AUTO SPEED FRR169 If the Timer function is turned OFF during the ON time The Timer 8 icon turns off The control stays in the current state The display shows a normal system Timer Schedule Control Block SYSTEM AUTO E TIMER SPEED
89. s method requires the following steps 1 Install a piercing valve to remove refrigerant from the sealedsystem Piercing valve must be removed from the system before recharging 2 Recover Refrigerant in accordance with EPA regulations A WARNING BURN HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch 4 0 EA Failure to follow these procedures could result in moderate or serious injurv 3 Install a process tube to sealed svstem FREEZE HAZARD Proper safetv procedures must be followed and proper protective clothing must be worn when working with liquid refrigerant Failure to follow these procedures could result in minor to moderate injurv 4 Make necessarv repairs to svstem 5 Evacuate svstem to 200 microns or less 6 Weigh in refrigerant with the property quantity of R410 A refrigerant 7 Start unit and verify performance WARNING BURN HAZARD Proper safety procedures must be followed and proper protective clothing must be worn when working with a torch DH Failure to follow these procedures could result in moderate or serious injurv 8 the process tube and solder the end shut 31 WARNING ELECTRIC SHOCK HAZARD HIGH PRESSURE HAZARD Turn off electric power before service or Sealed Refrigeration Svstem contains refrig
90. st fails 3 times the unit operation is locked out Unplug and replug to reset Indoor Coil lt less than 30 F for 2 Turn compressor off Run High Fan speed When coil temp reachs 45 F consecutive minutes resume operation after lockout time Unit Cycles gt grater than 9 Times per Continue operation Continue to monitor Take no action Log r vi um ess nanja imes per Continue operation Continue to monitor Take no action Log Only Only used if Electric Heat is available Run High Speed and Electric heat 10 Room Freeze Protection until room temp reaches 46 F Display FRZ during operation Logged Onl Connection sie Unit operates based standard t stat connection If miswired unit will not not operate See Not Applicable Not Applicable Not Applicable Not Applicable Discharge Air Temperature Sensor is Sensor Set temp to 75 F Continue to monitor Set error code 14 Open or Shorted ON Not Applicable Not Applicable 4 Ambient temp lt less than O F and ambient temp gt greater than 130 36 Temperature dinja Set error code 16 When cleared return unit to normal enabled and at least 2 fan Configuration Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Not Applicable Outdoor Coil Temperature lt 30
91. t whenever possible Always use a pressure regulator when using dry nitrogen to test the sealed refrigeration system for leaks flushing etc Make sure to follow all safety precautions and to use proper protective safety aids such as gloves safety glasses clothing etc Failure to follow proper safety procedures and or these warnings can result in serious injury or death MECHANICAL HAZARDS Extreme care proper judgment and all safety procedures must be followed when testing troubleshooting handling or working around unit with moving and or rotating parts Be careful when handling and working around exposed edges and corners of sleeve chassis and other unit components especially the sharp fins of the indoor and outdoor coils Use proper and adequate protective aids such as gloves clothing safety glasses etc Failure to follow proper safety procedures and or these warnings can result in serious injury or death DAMAGE HAZARDS FIRE DAMAGE HAZARDS Read the Installation Operation Manual for this air conditioning unit prior to operating Use air conditioner on a single dedicated circuit within the specified amperage rating Connect to properly grounded outlet only Do not remove ground prong of plug Do not cut or modify the power supply cord Do not use extension cords with the unit Failure to follow these instructions can result in fire and minor to serious property damage WATER DAMAGE HAZARDS
92. tem Mode ool System Mode an Mode t n Mode uto Fan Mode t an Mode an Speed Med n Speed Med n Speed Med Fan Speed et Point Cool 84 et Point Cool 84 et Point Cool 4 et Point Heat 62 et Point Heat 62 et Point Heat 62 00 00 ut e 5 00 uto ed 5 0 0 00 e eM os es 0 t ed 5 0 00 00 ut d 5 0 art lime vstem Mode an Mode an Speed et Point Cool et Point Heat tart Time ool System Mode t an Mode ed Fan Speed 4 et Point Cool 2 et Point Heat et tart Time ystem Mode n Mode an Speed et Point Cool et Point Heat tart Time ool System Mode t n Mode tart Time ystem Mode an Mode an Speed et Point Cool et Point Heat tart Time tart Time ystem Mode n Mode an Speed et Point Cool et Point Heat art Time CY o o NO 9 202 e Mp eo ajo c c ct gt e 941 O ml 19 Co 2 N N gt 0 Sla 2 4 2 5 0 0 00 et Q C C gt gt gt et o gt gt RT BENE ERN 0 U WN mi T 63 64 2 FRIEDRICH
93. tensity after 15 seconds of inactivitv The remote control can also be used to turn power ON OFF See Remote Control Display The display is a high efficiency LCD with a built in white backlight The backlight has an automatic two 2 step dim function After 15 seconds of inactivity the display dims to 20 intensity After an additional 120 seconds the display switches off Touching any button automatically changes the display to full brightness There are three control push buttons on each side of the display Figure 2 FAN CONTROL COOL HEAT ONLY LOCKED WI FI OPERATING if equipped SYSTEM Cycles between TEMPERATURE HEAT COOL or SYSTEMI Increment UP T WAIT COMPRESSOR 3 MINUTES FAN MODE AUTO FAN TIME DELAY Sets fan to either N CONTINUOUS Cvcle automaticallv 8 7 TEMPERATURE Run continuously ui OFF Increment DOWN SET POINT scHDUE 1 Ede d SCHEDULE ON FAN AUTOSPEED SMART m TIMER SCHEDULE SPEED Turns ON or OFF FAN SPEED Sets fan speed LOW MED HIGH TIMER ON or AUTO as equipped lini IR WINDOW ON OFF d Do not block Turns unit on off FILTER 2 DIGIT DISPLAY Check Clean Shows Setting for Set Point Temperature Automaticallv selects Clock AM PM best fan cooling or heating speed FAN SPEED SMART OPERATING Selected fan
94. tently will be much less satisfactory than one which is slightly undersized and which would operate more nearly continuously 1 4 4 Eu uu Le es zo x al Ve ee Ses 5 Ea sm Be eee COOLING LOAD ESTIMATE FORM HEAT GAIN FROM WINDOWS Heat gain from the sun Northeast sq 4 2 50 50 64 Sq East These factors are for single glass only For glass block multiply the above factors by 0 5 for double glass or storm windows multiply the above factors by 0 8 Southeast South Southwest West sq Northwest sq North sq WINDOWS Heat by conduction Total of all windows Single glass Double glass or glass block WALLS Based on linear feet of wall a Outside walls North Exposure Other than North exposure b Inside Walls between conditioned and unconditioned spaces only ROOF OR CEILING Use one only a Roof uninsulated b Roof 1 inch or more insulation c Ceiling occupied space above d Ceiling insulated with attic space above e Ceiling uninsulated with attic space above Floor Disregard if floor is directly on ground or over a basement 6 NUMBER OF PEOPLE 7 LIGHTS AND ELECTRICAL EQUIPMENT IN USE DOORS AND ARCHES CONTINUOUSLY OPENED TO UNCONDITIONED SPACE TOTAL LINEAR FEET OF WIDTH QUANTITY Light Construction watts FACTORS BTU Hr DAV Quantitv x Factor
95. th the word WARNING or CAUTION These words mean WARN NG Vou can be killed or seriousiv injured if vou do not follow instructions A CA UTION You can receive minor or moderate injury if you do not follow instructions All safety messages will tell you what the potential hazard is tell you how to reduce the chance of injury and tell you what will happen if the instructions are not followed A message to alert you of potential property damage will have the NO TIC word NOTICE Potential damage can occur if instructions are not followed PERSONAL INJURV OR DEATH HAZARDS ELECTRICAL HAZARDS e Unplug and or disconnect all electrical power to the unit before performing inspections maintenance or service Make sure to follow proper lockout tag out procedures e Always work in the company of a qualified assistant if possible e Capacitors even when disconnected from the electrical power source retain an electrical charge potential capable of causing electric shock or electrocution e Handle discharge and test capacitors according to safe established standards and approved procedures e Extreme care proper judgment and safety procedures must be exercised if it becomes necessary to test or troubleshoot equipment with the power on to the unit Do not pour water on the return grille discharge grille evaporator coil control panel and sleeve on the room side of the a
96. the evaporator coil the expanding refrigerant absorbs some of that heat This results in a lowering of the indoor air temperature hence the cooling effect The expansion and absorbing of heat cause the liquid refrigerant to evaporate i e change to a gas Once the refrigerant has been evaporated changed to a gas it is heated even further by the air that continues to flow across the evaporator coil The particular system design determines at exactly what point in the evaporator the change of state i e liquid to a gas takes place In all cases however the refrigerant must be totally evaporated changed to a gas before leaving the evaporator coil The low pressure suction created by the compressor causes the refrigerant to leave the evaporator through the suction line as a cool low pressure vapor The refrigerant then returns to the compressor where the cycle is repeated Liquid Line R 410A SEALED SYSTEM REPAIR CONSIDERATIONS WARNING Refrigeration system under high pressure Do not puncture heat expose to flame or incinerate Only certified refrigeration technicians should service this equipment R410A systems operate at higher pressures than R22 equipment Appropriate safe service and handling practicces must be used Only use gauge sets designed for use with R410A Do not use standard R22 gauge sets The following is a list of important considerations when working with R 410A equipment
97. tor given Disregard this item if the floor is directly on the ground or over a basement 6 Multiply the number of people who normally occupy the space to be air conditioned by the factor given Use a minimum of 2 people 7 Determine total number of watts for light and electrical equipment except the air conditioner itself that will be in use when the room air conditioning is operating Multiply the total wattage by the factor given 8 Multiply the total width linear feet of any doors or arches which are continually open to an unconditioned space by the applicable factor NOTE Where the width of the doors or arches is more than 5 feet the actual load may exceed the calculated value In such cases both adjoining rooms should be considered as a single large room and the room air conditioner unit or units should be selected according to a calculation made on this new basis Total the loads estimated for the foregoing 8 items 10 Multiply the subtotal obtained in item 9 by the proper correction factor selected from the map for the particular locality The result is the total estimated design cooling load in BTU per hour For best results a room air conditioner unit or units having a cooling capacity rating determined in accordance with the NEMA Standards Publication for Room Air Conditioners CN 1 1960 as close as possible to the estimated load should be selected In general a greatly oversized unit which would operate intermit
98. ts As an Authorized Service Provider you play a vital role in these areas By adhering to the policies and procedures you provide us with vital information on each warranty repair you complete This information is used to identify product failure trends initiate corrective action and improve product quality thereby further reducing warranty expenses while increasing customer satisfaction levels FRIEDRICH AUTHORIZED PARTS DEPOTS AAA Refrigeration Service The Gabbert Company Reeve Air Conditioning Inc 1322 24th Street Suite B 6868 Ardmore 2501 South Park Road Kenner Louisiana 70062 Houston Texas 77054 Hallandale Florida 33009 504 464 7444 713 747 4110 954 962 0252 877 813 7444 800 458 4110 800 962 3383 Alamo Service Company Johnstone Supply of Woodside Valley of the Sun 1450 North Flores Street 27 01 Brooklyn Queens Expway 4710 W Dewey Drive San Antonio Texas 78212 Woodside New York 11377 Las Vegas NV 89118 210 227 2450 718 545 5464 702 547 4900 800 328 2450 800 431 1143 866 259 8500 A C Warehouse International Parts Depot 670 Avahl Street Traco Corp Honolulu Hi 96813 380 Paterson Road 808 545 3084 Carlstadt NJ 07072 201 939 1600 TECHNICAL SUPPORT CONTACT INFORMATION FRIEDRICH FRIEDRICH AIR CONDITIONING CO 10001 Reunion Place Ste 500 San Antonio TX 78216 210 546 0500 877 599 5665 x 261 FAX 210 546 0630 Email tac friedrich com www friedrich com Printed in the U S A Kuhl Q Serv PartsMan 5 12
99. tubes will have to be installed First install a line tap and remove refrigerant from system Make necessary sealed system repairs and vacuum system Crimp process tube line and solder end shut Do not leave a service valve in the sealed system 9 High Pressure Gauge 0 to 750 108 10 Low Pressure Gauge 30 to 200 106 11 Vacuum Gauge 0 1000 microns 12 Facilities for flowing nitrogen through refrigeration tubing during all brazing processes EQUIPMENT MUST BE CAPABLE OF 1 Recovering refrigerant to EPA required levels 2 Evacuation from both the high side and low side of the system simultaneously 3 Introducing refrigerant charge into high side of the system 4 Accurately weighing the refrigerant charge introduced into the system Proper refrigerant charge is essential to proper unit operation Operating a unit with an improper refrigerant charge will result in reduced performance capacity and or efficiency Accordingly the use of proper charging methods during servicing will insure that the unit is functioning as designed and that its compressor will not be damaged Too much refrigerant overcharge in the system is just as bad if not worse than not enough refrigerant undercharge They both can be the source of certain compressor failures if they remain uncorrected for any period of time Quite often other problems such as low air flow across evaporator etc are misdiagnosed as refrigerant
100. ur unit to ensure it is properly sized for the room in which itis installed Room air conditioners are not designed to cool multiple rooms Check the heating capacity of your unit Air conditioners are sized to meet the cooling load and heater size is then selected to meet the heating load In extreme northern climates room air conditioners may not be able to be used as a primary source of heat If there are heat producing appliances in use in the room or if the room is heavily occupied the unit will need to run longer to remove the additional heat Be sure to use exhaust vent fans while cooking or bathing and if possible try not to use heat producing appliances during the hottest part of the day The use of higher efficiency components in your new air conditioner may result in the unit running longer than you feel it should This may be more apparent if it replaced an older less efficient model The actual energy usage however will be significantly less when compared to older models The energy efficiency ratio EER and cooling capacity rating Btu h listed on the unit s rating plate are both agency certified 47 COOLING ONLV ROOM AIR CONDITIONERS TROUBLESHOOTING TIPS Possible Cause 2 ction Check voltage at compressor 115V amp 230V Low voltage units will operate at 1090 voltage variance T stat not set cold enough or Set t stat to coldest position Test t stat amp inoperative or elect
101. wing conditions 1 Improper air flow over the evaporator 2 Overcharged refrigerant system causing liquid to be returned to the compressor 3 Restricted refrigerant system 4 Lack of lubrication 5 Liquid refrigerant returning to compressor causing oil to be washed out of bearings 6 Noncondensables such as air and moisture in the system Moisture is extremely destructive to a refrigerant system 7 Defective capacitors 35 36 COMPRESSOR REPLACEMENT Recommended procedure for compressor replacement A WARNING RISK OF ELECTRIC SHOCK Unplug and or disconnect all electrical power to the unit before performing inspections maintenances or service Failure to do so could result in electric shock serious injury or death 1 Be certain to perform all necessary electrical and refrigeration tests to be sure the compressor is actually defective before replacing WARNING HIGH PRESSURE HAZARD Sealed Refrigeration System contains refrigerant and oil under high pressure Proper safety procedures must be followed and proper protective clothing must be worn when working with refrigerants Failure to follow these procedures could result in serious injury or death 2 Recover all refrigerant from the system though the process tubes PROPER HANDLING RECOVERED REFRIGERANT ACCORDING TO EPA REGULATIONS IS REQUIRED Do not use gauge manifold for this purpose if there has been a burnout You wi
102. y at least yearly or bi vearlv and clean of all obstructions and debris Clean both areas with an antibacterial and antifungal cleaner Rinse both items thoroughly with water and ensure that the drain outlets are operating correctly Check the sealant around the sleeve and reseal areas as needed CLEARANCES Inspect the surrounding area inside and outside to ensure that the unit s clearances have not been compromised or altered Condenser Discharge Air Relay Board Key Pad and Electronic Control Board Sleeve 4 Evaporator Return Blower Motor Blower Wheel After Maintenance Repair Start Up Checklist amp Notes Inspect and ensure that all components and accessories have been installed properly and that they have not been damaged during the installation progress Check the condensate water drain s to ensure that they are adequate for the removal of condensate water and that they meet the approval of the end user Ensure that all installation instructions concerning clearances around the unit have been adhered to Check to ensure that the unit air filter indoor coil and outdoor coil are free from any obstructions Ensure that the circuit breaker s or fuse s and supply circuit wire size have been sized correctly If the unit was supplied with a power supply cord insure that it is stored properly Ensure that the entire installat

Friedrich SQ05N10 Air Conditioner User Manual

Contents

Download Pdf Manuals

Related Search

Related Contents