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Manafacture: Lennox International Inc. File size: 1.27 mb File name: Language of manual:

. Defrost sensor must be closed, 32°F or below. If temperatures are such that switch will not close, jumper between defrost sensor terminals on the defrost control, 2. Start system in heating operation. . Jumper test pins, A 1/4" quick connect terminal crimped onto a solid wire or brazing rod works well for test jumper. Closing test pins speeds up time interval by a factor of 256. Defrost Control Defrost TestPins.,,,= i Defro= / TimePlug Defrost Control Setting Defrost Test Cycle Time 30 minutes 7 seconds 60 minutes 14 seconds 90 minutes 21 seconds FinHr After closing test pins and appropriate cycle time has elapsed, the reversing valve should shift to defrost mode and the outdoor fan should stop. After 2 seconds of defrost operation, the reversing valve should shift back to ",tingoperation and the outdoor fan should start. System Performance For maximum performance of this heat pump system, the operating temperatures and pressures should be checked and superheat determined at Standard ARI test conditions of 82°F outdoor -80°F indoor dry bulb/67°F wet bulb. If superheat measured deviates from the values given in Table 3, refrigerant charge should be adjusted accordingly for maximum performance. Suction Superheat Outdoor Unit Model Suction Superheat @ ARI Conditions 82 ° OD 80° IDDB/67 ° IDWB PWC183 18° -20° F PWC243 17° -19° F Table 3 MAINTENANCE Shutoff all electrical power to the unit before conducting any maintenance procedures. Failure to do so could cause personal injury. Periodic inspection and maintenance normally consists of changing or cleaning filters and (under some conditions) cleaning the coils. Filter Inspect the filter once a month. Replace disposable filter or clean the permanent-type filter as necessary (a minimum of three times each heating or cooling season is recommended). Do not replace permanent-type filter with a disposable filter unless an installation was made in which the filter was mounted exterior to the unit (see Air Filter section on page 4). Motors The indoor and outdoor fan motors are permanently lubricated and require no maintenance. Outdoor Coil Foreign material should not be allowed to accumulate on the outdoor coil surface or other parts in the air circuit. Cleaning should be as often as necessary to keep the coil clean. Use a brush, vacuum cleaner attachment or other suitable means. Be sure power to unit is shut off before using water to clean the coil. Care should be used when cleaning the coils so that the coil fins are not damaged. Outdoor Base Drain Foreign material should not be allowed to clog the drain hole. inspect and clear drain opening prior to heating season. UNE VOLTAGE-FACTORY UNE VOLTAGE-RELD 208/230-1-60 ........ UNE VOLTAGE-RELD (IF USED) POWERSUPPLYWITHMIN. LOW VOLTAGE-FACTORY 75"CCOPPERWIRE .......... LOW VOLTAGE-FI ELD I CIRCUIT1I I (lo_cO_L'qCIRCUIT2 I •; ..; :: BLUE 7 AND 10 PWC ONLY P_D BLACK I BLOWER LOWER MOTORvloI_rr ( RED M1 CAPACr_R-RUN NOTE: IF ANY OF THE ORIGINAL WIRES ARE REP_, THE SAME SIZE AND TYPE WIRE MUST BE USED. CONNECTOR CONDENSER FAN BLACK BROWN REV VALVE © DEFROST SENSOR Connection Diagram PWC with 5, 7 or 10 KW Heat Strip Part #41164-3 Fin.r== 4 UNE VOLTAGE-FACTORY 208/230-1-60:OWER SUPPLY WITH MIN. 75"C COPPER WIRE ..... ........ .......... LINE VOLTAGE-RELD LINE VOLTAGE-FIELD (IF USED) LOW VOLTAGE-FACTORY LOW VOLTAGE-R ELD NOTE: IF ANY OF THE ORIGINAL WIRES ARE REPLACED, THE SAME SIZE AND TYPE WIRE I CIRCUIT 1 I CIRCUIT 2 MUST BE USED. :: i :• : BLUE RED F_ UMrT CONNECTOR BLOCK BLOWER m CONDENSER E_CK FAN . NT CAPACITOR-RUN I RED REV VALVE O DEFROST Connection Diagram PWC with 15 KW Heat Strip Part #42203-2 LINE VOLTAGE-FACTORY 208/230-1-60 ..... UNE VOLTAGE-FIELD POWER SUPPLY WITH MIN. ........ UNE VOLTAGE-FIELD (IF USED) 75"C COPPER WIRE LOWVOLTAGE-FACTORY THERMOSTAT .......... LOW VOLTAGE-FIELD NOTE: IF ANY OF THE ORIGINAL WIRES ARE REPLACED, THE SAME SIZE AND TYPE WIRE MUST BE USED. CONDENSER FAN BLOWER MOTOR BLOWER I_) BROWN RED _-RUN RE) : : ° ! , POTENTIAL RELAY pF USe_ Connection Diagram PWC with No Heat Strip Part #45322-1 Fin-r== 6 Limited Warranty August 1, 1997 Thiswarran(ygivesyou specificlegalrightsand you may have otherrights which varyfrom state/provincetostate/province. Warrantor: Armstrong Air Conditioning Inc., 421 Monroe St., Bellevue, OH 44811 Armstrong Air Conditioning Inc products are available under the following names: Air Ease, Armstrong Air, American Airs, Concord Subject to the limitafions.stated in this warranty, we warrant to the first buyer for use the residential heating, cooling or heat pump unit, when installed, operated and maintained as required by this warranty, to be free of defects in workmanship or material for a pehod of five years (two years for commercial equipment) from the time of installation. We will ...

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