Friedrich 2007 - Manuals

5 ROUTINE MAINTENANCE NOTE: Units are to be inspected and serviced by qualifi ed service personnel only. Inspect the indoor blower 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 th...

6 UNIT IDENTIFICATION Model Number Code S S 08 L 1 0 A Serial NumberDecade Manufactured L=0 C=3 F=6 J=9 A=1 D=4 G=7 B=2 E=5 H=8 Year Manufactured A=1 D=4 G=7 K=0 B=2 E=5 H=8 C=3 F=6 J=9 Month Manufactured A=Jan D=Apr G=Jul K=Oct B=Feb E=May H=Aug L=Nov C=Mar F=Jun J=Sept M=Dec L C G R 00001 Producti...

7 PERFORMANCE DATA PERFORMANCE DA TA* Cooling EV AP . AIR TEMP . DEG. F CONDENSER TEMPERA TURE DEG. F Discharge Te m p Suction Te m p Super Heat Sub- Cooling OPERA TING PRESSURES ELECTRICAL RA TINGS R-22 REF . Vo ltage BREAKER FUSE Discharge Air Temp. Drop F . Suction Discharge Amps Cool Amps Heat L...

8 Wire Size Use ONLY wiring size recommended for single outlet branch circuit. Fuse/Circuit Use ONLY type and size fuse or HACR Breaker circuit breaker indicated on unit’s rating plate. Proper current protection to the unit is the responsibility of the owner. Grounding Unit MUST be grounded from bra...

9 MECHANICAL COMPONENTS Bellows condensate valve Temperature-sensitive valve that opens up to drain off condensate water when the outside temperature falls below 40°F and closes when the outside temperature reaches 58°F. Vent door Allows introduction of fresh air into the room and/or exhausts stale ...

11 IMPORTANT ANY SEALED SYSTEM REPAIRS TO COOL-ONLY MODELS REQUIRE THE INSTALLATION OF A LIQUID LINE DRIER. ALSO, ANY SEALED SYSTEM REPAIRS TO HEAT PUMP MODELS REQUIRE THE INSTALLATION OF A SUCTION LINE DRIER. the liquid refrigerant leaves the metering device entering the evaporator coil. As it ente...

13 NOTE: 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 of the compressor. Proper refrigerant recovery procedures need to be adhered to as outlined in EPA Regulations. THIS SHOULD ONLY BE ATTEMPTED BY QUA...

14 An undercharged system will result in poor performance (low pressures, etc.) in both the heating and cooling cycle. Whenever you ser vice a unit with an under charge of refrigerant, always suspect a leak. The leak must be repaired before charging the unit. To check for an undercharged system, tur...

15 A quick check for either condition begins at the evaporator. With a partial restriction, there may be gurgling sounds 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 dev...

16 NORMAL FUNCTION OF VALVE VALVE OPERATING CONDITION DISCH A R G E TU BE fro m Co m p re sso r S U CT IO N T U B E t o Co m p re ss o r Tu b e t o I N S ID E COI L Tu b e t o O U T S ID E COI L LEF T Pilot Ca pi lla ry T u be RIG H T P ilo t Ca pi lla ry T u be NOTES: * TEMPERATURE OF VALVE BODY **...

17 COOLING ONLY ROOM AIR CONDITIONERS: TROUBLESHOOTING TIPS Problem Possible Cause Action Compressor does not run Low voltage Check voltage at compressor. 115V & 230V units will operate at 10% voltage variance T-stat not set cold enough or inoperative Set t-stat to coldest position. Test t-stat ...

21 Problem Possible Cause Action Room temperature uneven (Heating cycle) Heat anticipator (resistor) shorted (on applicable models) Disconnect power to unit. Remove resistor from t-stat bulb block. Plus in unit & allow to operate. Feel resistor for heat. If not heat, replace resistor Wide differ...

22 Problem Possible Cause Action Unit cools when heat is called for Incorrect wiring Refer to applicable wiring diagram Defective solenoid coil Check for continuity of coil Reversing valve fails to shift Block condenser coil & switch unit to cooling. Allow pressure to build up in system, then sw...

23 ELECTRICAL TROUBLESHOOTING CHART — HEAT PUMP NO Is Line Voltage Present at the Solenoid NO YES YES TROUBLESHOOTING CHART — HEATING Noncondensables (air) Overcharged Low Airfl ow Across Indoor Coil Outdoor Ambient Too High For Operation In Heating High Head Pressure REFRIGERANT SYSTEM DIAGNOSIS – ...

24 MODELS XQ05L10-A,B; XQ06L10-A,B,C,D; XQ08L10-A,B; XQ10L10-A,B; XQ12L10-A,B