Carrier PH4G-K Series Installation Instructions Manual

Carrier PH4G-K Series Installation Instructions Manual Manual pdf 1 page image

Installation InstructionIMPORTANT: Effective January 1, 2023, all split system and packagedair conditioners must be installed pursuant to applicable regionalefficiency standards issued by the Department of Energy.NOTE: Read the entire instruction manual before starting theinstallation.NOTE: Installer: Make sure the Owner’s Manual and ServiceInstructions are left with the unit after installation.Table of ContentsSafety Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Receiving and Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Identify Unit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Inspect Shipment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Roof Curb . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Slab Mount . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2Inspection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7Rigging/Lifting of Unit (See Fig. 5) . . . . . . . . . . . . . . . . . . . . . . 8Configuring Units for Downflow (Vertical) Discharge . . . . . . . 8High-Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Special Procedures for 208-V Operation . . . . . . . . . . . . . . . . . 10Control Voltage Connections . . . . . . . . . . . . . . . . . . . . . . . . . . 10Standard Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Transformer Protection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Accessory Electric Heaters Installation . . . . . . . . . . . . . . . . . . 10Sequence of Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10Pre-Start-Up . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Start-Up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19Checking Cooling and Heating Control Operation. . . . . . . . . . 19Checking and Adjusting Refrigerant Charge . . . . . . . . . . . . . . 20Indoor Airflow and Airflow Adjustments . . . . . . . . . . . . . . . . 20Single Cooling Fan Speed Set-up (Dehumidification feature notused) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20Two Cooling Fan Speeds Set-up (Dehumidification feature used)20Single Speed Cooling With Higher Electric Heat Speed . . . . . 21Continuous Fan Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21Demand Defrost Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Indoor Blower and Motor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25Refrigerant . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Compressor Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29Servicing Systems on Roofs with Synthetic Materials . . . . . . . 29Liquid Line Filter Drier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29R-410A Refrigerant Charging . . . . . . . . . . . . . . . . . . . . . . . . . 29Loss of Charge Switch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Check Defrost Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30Start-Up Checklist. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30A09183Fig. 1 – Unit PH4GSafety ConsiderationsInstallation and servicing of this equipment can be hazardous due tomechanical and electrical components. Only trained and qualifiedpersonnel should install, repair, or service this equipment.Untrained personnel can perform basic maintenance functions such ascleaning and replacing air filters. All other operations must be performedby trained service personnel. When working on this equipment, observeprecautions in the literature, on tags, and on labels attached to or shippedwith the unit and other safety precautions that may apply.Follow all safety codes. Wear safety glasses, protective clothing, andwork gloves. Use quenching cloth for brazing operations. Have a fireextinguisher available. Read these instructions thoroughly and follow allwarnings or cautions included in literature and attached to the unit.Consult local building codes, the current editions of the NationalElectrical Code (NEC) NFPA 70.PH4G--K13.4 SEER2 Single-Packaged Heat Pump Systemwith R-410A RefrigerantSingle Phase 2-5 Nominal Tons (Sizes 24-60)Three Phase 3-5 Nominal Tons (Sizes 36-60)