Friedrich RAC-SVC-06 User Manual

Service ManualRoom Air ConditionersRAC-Svc-06 (3-06)2006CoolSUPER HIGH EFFICIENCYTemp/HourFan OnlyClockStartStopMoneySaver®PMVent shutExhaustFanSpeedT

10IMPORTANTANY SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. ALSO, ANY SEALED SYSTEM REPAIRS TO HEAT PUM

11EQUIPMENT REQUIRED 1. Voltmeter 2. Ammeter 3. Ohmmeter 4. E.P.A. Approved Refrigerant Recovery System. 5. Vacuum Pump (capable of 200 micron

12NOTE: In order to access the sealed system it will be necessary to install Schrader type fi ttings to the process tubes on the discharge and suction

13An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle.Whenever you service a unit with

14A quick check for either condition begins at the evaporator. With a partial restriction, there may be gurgling sounds at the metering device entranc

15NORMAL FUNCTION OF VALVEVALVEOPERATING CONDITIONDISCHARGE TUBE from CompressorSUCTION TUBE to CompressorTube to INSIDE COILTube to OUTSIDE COILLEFT

16COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPSProblem Possible Cause ActionCompressor does not runLow voltageCheck voltage at compressor.

17Problem Possible Cause ActionUnit does not runFuse blown or circuit trippedReplace fuse, reset breaker. If repeats, check fuse or breaker size. Chec

18Problem Possible Cause ActionCompressor runs for short periods only. Cycles on overloadOverload inoperative. Opens too soonCheck operation of unit.

19Problem Possible Cause ActionWater "spitting" into roomSublimation: When unconditioned saturated, outsid

2INTRODUCTIONThis service manual is designed to be used in conjunction with the installation manuals provided with each air conditioning system compon

20HEAT / COOL ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPSProblem Possible Cause ActionRoom temperature uneven (Heating cycle)Heat anticipator (resisto

21Problem Possible Cause ActionUnit cools when heat is called forIncorrect wiring Refer to applicable wiring diagramDefective solenoid coil Check for

22ELECTRICAL TROUBLESHOOTING CHART — HEAT PUMPNOIs Line VoltagePresent at the SolenoidNOYESYESTROUBLESHOOTING CHART — HEATINGNoncondensables (air)Over

23MODELSC06H10D

24MODELSXQ05L10-A,B; XQ06L10-A,B,C,D; XQ08L10-A,B; XQ10L10-A,B; XQ12L10-A,B

25MODELSKS10L10-A, RS10L10-A, KS12L10-A, KS12L30-A, KS15L10-A, RS15L10-A, RS16L30-A, RM18L30-A, KM18L30-A, KM21L30-A, RM24L30-A, KM24L30-A

26MODELSSS08L10-A/B, SS10L10-A/B, SS12L10-A/B; SS12L30-A/B, SS14L10-A/B, SS16L30-A/B, SM18L30-A/B, SM21L30-A/B, SM24L30-A/B

27MODELSL36L30-A

28MODELSL28L30-A

29MODELSSL36L30-B

3Friedrich Air Conditioning Company P.O. Box 1540San Antonio, TX 78295 210.357.4400www.friedrich.comROOM AIR CONDITIONERS LIMITED WARRANTYFIRST YEAR A

30MODELEQ08L11-A

31MODELSES12L33-A, ES16L33-A, EM18L34-A, EM24L35-A

32MODELEL36L35-A

33MODELYS09L10-A, YS09L10-B

34MODELSYS13L33-A, YM18L34-A

35MODELSYL24L35-A

RAC-Svc-06 (3-06)Friedrich Air Conditioning Co.Post Office Box 1540 • San Antonio, Texas 78295-15404200 N. Pan Am Expressway • San Antonio, Texas 7821

4ROUTINE MAINTENANCENOTE: Units are to be inspected and serviced by qualifi ed service personnel only. Inspect the indoor blower housing, evaporator

5UNIT IDENTIFICATIONModel Number Code S S 08 L 1 0 ASerial NumberDecade ManufacturedL=0 C=3 F=6 J=9 A=1 D=4 G=7B=2 E=5 H=8Year ManufacturedA=1 D=4

6PERFORMANCE DATAModelEVAPORATORAIR TEMP °FCONDENSER TEMP °FDISCHARGE TEMPSUCTION TEMPSUPER HEATSUB-COOLINGOPERATING PRESSURESELECTRICAL RATINGSR-22

7Wire Size Use ONLY wiring size recommended for single outlet branch circuit.Fuse/Circuit Use ONLY type and size fuse or HACR Breaker circuit break

8MECHANICAL COMPONENTSBellows condensate valve Temperature-sensitive valve that opens up to drain off condensate water when the outside temperature f

9ELECTRONIC CONTROLSIMPORTANT: Error Codes are cleared from the log by exiting from Error Code Mode. To exit on XQ models, press Timer On/Off button.