National Comfort Products CPG41228-U Installation Manual
Also see for CPG41838-U: Instruction manual
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25Installation Guide for Comfort Pack (CPG) UnitsThe indoor blower motor and the outdoor fan motor havepermanently lubricated bearings and do not require routineservice. The refrigeration system is sealed and factory chargedwith R-410A so that routine maintenance is not required.Cleaning of the outdoor coil, indoor coil, drain pan, and insidethe bottom of the chassis are recommended at least once ayear, and more often if the equipment is operated in a dustyor hostile environment. The electrical controls do not requireroutine service.Power to the unit should always be turned off before performingservice or removing the cooling chassis from the unit. Onepower connector and one control circuit connector are providedfor easy disconnecting and re-connecting of the wires betweenthe cooling chassis and cabinet. The controls enclosure covermust be removed to allow access to the screws holding theindoor blower cover plate to the cooling chassis and cabinet.After reinstalling the cooling chassis, the indoor blower coverplate and controls enclosure cover must be reinstalled.IF YOU TURN OFF POWER SUPPLY, TURN OFFTHE GAS. SEE HAzARD LEVELS, PAGE 3. THEMATERIAL CONTAINED IN THE MAINTENANCEAND SERVICE SECTION OF THIS MANUALIS DESIGNED TO AID A qUALIFIED SERVICEPERSON IN MAINTAINING AND SERVICINGTHIS EqUIPMENT. THIS UNIT WILL OPERATEWITH MINIMUM MAINTENANCE. TOENSURE LONG LIFE AND SATISFACTORYPERFORMANCE, A HEATER THAT ISOPERATED UNDER NORMAL CONDITIONSSHOULD bE INSPECTED AND CLEANED ATTHE START OF EACH HEATING SEASON.IF THE HEATER IS OPERATING IN AN AREAWHERE AN UNUSUAL AMOUNT OF DUST,SOOT OR OTHER IMPURITIES ARE PRESENTIN THE AIR, MORE FREqUENT MAINTENANCEIS RECOMMENDED. WHEN ANY SERVICE ISCOMPLETE, bE CAREFUL TO REASSEMbLECORRECTLY TO ENSURE THAT NO UNSAFECONDITIONS ARE CREATED. WHEN RE-LIGHTING, ALWAYS FOLLOW THE LIGHTINGINSTRUCTIONS ON THE HEATER.! WARNINGMaintenance ScheduleAt least every six weeks check the filter. Clean or replace asnecessary. A clean filter in addition to providing a comfortableenvironment ensures fuel-efficient operation and long heatexchanger life. Do the following procedures at least annually.• Clean all dirt, lint, and grease from the combustion air openingsand venter motor.• Inspect the heat exchanger. Clean if needed.• Check the burner for scale, dust, or lint accumulation. Clean ifneeded.• Check the vent system for soundness. Replace any parts thatdo not appear sound.• Check the wiring for any damaged wire. Replace damagedwiring.NOTE: USE ONLY FACTORY-AUTHORIzEDREPLACEMENT PARTS.burner/Control CompartmentHeat Section burner/Control CompartmentShowing Locations of Burner Assembly and ControlsNOTE: Unit side panel is removed for clarity; side panel is notremovable. Access to the burner/control compartment is throughthe small rear access panel as illustrated below.Figure 5Burner AssemblyBurnerGas ValveVenter MotorPressure SwitchDSI IntegratedControl Module |
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