Carrier FCM4 Service And Maintenance Instructions

Carrier FCM4 Service And Maintenance Instructions Manual pdf 1 page image

Service and Maintenance InstructionsTable of ContentsSAFETY CONSIDERATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1FAN COIL DESCRIPTION and TROUBLESHOOTING . . . . . . . . 2PSC FAN MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2ELECTRIC HEATER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . 2CLEANING OR REPLACING REFRIGERANTFLOW-CONTROL DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Control Board (contact FAST for part number). . . . . . . . . . . . . . . 2FEM4P, FEM4X, FEV, FJM, FXM4, REM4P, REM4X, WAHA,WAPM, WAPT, WAPL, WAHM, WAHT, WAHL, WAXM, WAXT,WAXL, WBHL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4MULTI-SPEED ECM FAN MOTOR . . . . . . . . . . . . . . . . . . . . . . 4FVM4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5TROUBLESHOOTING. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9FMA4P, WAMA, FMA4X, WAXA . . . . . . . . . . . . . . . . . . . . . . 15FAN MOTOR . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15ELECTRIC HEATER SERVICE . . . . . . . . . . . . . . . . . . . . . . . . 16SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 16CLEANING OR REPLACING REFRIGERANTFLOW-CONTROL DEVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . 17SEQUENCE OF OPERATION . . . . . . . . . . . . . . . . . . . . . . . . . . 17ELECTRIC HEATER FUNCTION ANDTROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21FCM4, FEM4, FEV, FJM, FSA4, FXM4, FVM4, REM4, WAPM,WAPT, WAPL, WAHM, WAHT, WAHL, WAXM, WAXT, WAXL,WBHL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21FMA4, WAMA, WAXA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21CARE AND MAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22FCM4, FEM4, FEV, FJM, FXM4, FVM4, WAP, WAH, WAX,WBHL, REM4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22FSA4, FMA4, WAMA, WAXA . . . . . . . . . . . . . . . . . . . . . . . . . 23Refrigerant Flow-Control Devices. . . . . . . . . . . . . . . . . . . . . . . . 24Aluminum Coil Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Coil & Condensate Pan Removal and Replacement . . . . . . . . . . 26SAFETY CONSIDERATIONSImproper installation, adjustment, alteration, service, maintenance, oruse can cause explosion, fire, electrical shock, or other conditions whichmay cause death, personal injury or property damage. Consult aqualified installer, service agency, or your distributor or branch forinformation or assistance. The qualified installer or agency must usefactory-authorized kits or accessories when modifying this product.Refer to the individual instructions packaged with kits or accessorieswhen installing.Follow all safety codes. Wear safety glasses, protective clothing andwork gloves. Have a fire extinguisher available. Read these instructionsthoroughly and follow all warnings or cautions included in literature andattached to the unit. Consult local building codes and the current editionsof the National Electrical Code (NEC) NFPA 70.In Canada, refer to the current editions of the Canadian Electrical CodeCSA C22.1.Recognize safety information. This is the safety-alert symbol . Whenyou see this symbol on the unit and in instruction manuals, be alert to thepotential for personal injury.Understand the signal words DANGER, WARNING, and CAUTION.These words are used with the safety-alert symbol. DANGER identifiesthe most serious hazards which will result in severe personal injury ordeath. WARNING signifies hazards which could result in personalinjury or death. CAUTION is used to identify unsafe practices whichmay result in minor personal injury or product and property damage.NOTE is used to highlight suggestions which will result in enhancedinstallation, reliability, or operation.INTRODUCTIONThese fan coil units are designed for flexibility in a variety ofapplications that meet upflow, horizontal, or downflow requirements.Units are available in 1-1/2 through 5 ton nominal cooling capacities.Factory-authorized, field-installed electric heater packages are availablein 5kW @ 240VAC through 30kW @ 240VAC single phase selectionsand 3-phase selections.FCM4, FEV, FEM4, FJM, FMA4, FSA4, FSM4, FSU4,FVM4, FXM4, REM4, WAH, WAM, WAP, WAX, WBHLVertical/Horizontal/Multi-Position Fan Coil UnitsCAUTION!UNIT OPERATION AND SAFETY HAZARDFailure to follow this caution may result in equipment damage,improper operation or personal injury.When coils are pressurized with nitrogen, open the suction port first torelease the nitrogen. Mesh screens may dislodge if the liquid line isopened first.WARNING!UNIT OPERATION AND SAFERTY HAZARDFailure to follow this warning could result in personal injury or death.R-410A systems operate at higher pressures than R-22 systems. Do notuse R-22 service equipment or components on R-410 equipment.Ensure service equipment is rated for R-410A.WARNING!ELECTRICAL OPERATION HAZARDFailure to follow this warning could result in personal injury or death.Before installing or servicing unit, always turn off all power to unit.There may be more than one disconnect switch. Turn off accessoryheater power if applicable. Lock out and tag switch with a suitablewarning label.