Carrier 48XL installation instructions

Page 33

AIR CONDITIONER WITH PURON

REFRIGERATION SECTION QUICK-REFERENCE GUIDE

Puron refrigerant operates at 50-70 percent higher pressures than R-22. Be sure that servicing equipment and replacement components are designed to operate with Puron. Puron refrigerant cylinders are rose colored.

•Puron refrigerant cylinders manufactured prior to March 1, 1999, have a dip tube that allows liquid to flow out of cylinder in upright

position. Cylinders manufactured March 1, 1999 and later DO NOT have a dip tube and MUST be positioned upside down to allow liquid to flow.

•Recovery cylinder service pressure rating must be 400 psig. DOT 4BA400 or DOT BW400.

•Puron systems should be charged with liquid refrigerant. Use a commercial-type metering device in the manifold hose.

•Manifold sets should be 750 psig high side and 200 psig low side with 520 psig low side retard.

•Use hoses with 750 psig service pressure rating.

•Leak detectors should be designed to detect HFC refrigerant.

•Puron, as with other HFCs, is only compatible with POE oils.

•Vacuum pumps will not remove moisture from oil.

•Only use factory-specified liquid-line filter driers with rated working pressures no less than 600 psig.

•Do not install a suction-line filter drier in liquid line.

•POE oils absorb moisture rapidly. Do not expose oil to atmosphere.

•POE oils may cause damage to certain plastics and roofing materials.

•Wrap all filter driers and service valves with wet cloth when brazing.

•A Puron liquid-line filter drier is required on every unit.

•Do not use an R-22 TXV.

•Never open system to atmosphere while it is under a vacuum.

•When system must be opened for service, break vacuum with dry nitrogen and replace filter driers.

•Do not vent Puron into the atmosphere.

•Observe all warnings, cautions, and bold text.

•Do not leave Puron suction line driers in place for more than 72 hrs.

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Contents Installation Electricalshockhazard Unit Operation and Safety HazardIdentify Unit Inspect ShipmentIN.MM IN. MMNumber 024-030Left Side View Frontview Rightsideview Front View Furnace Section CompressorsBurner Orifice No. Qty.Drill Size RETURN-AIR Filters ThrowawayPlace ClearancesSelect and Install Ductwork See Detail a Install Gas Piping Install Flue HoodProvide for Condensate Disposal Carbon Monoxide Poisoning HazardFire or Explosion Hazard Install Electrical ConnectionsHIGH-VOLTAGE Connections Electrical Shock HazardConnecting Ground Lead to Ground Screw Routing Power Leads Into UnitRouting Control Power Wires Accessory InstallationGround Screw Field Connection OAT Black WiresRequired Factory ConnectedFIRE, EXPLOSION,ELECTRICALSHOCK Hazard Unit Start-Up and TroubleshootingMotor Turns Slowly Verify Motor Winding SectionDUSO0003 DU500095 Status Code 23 Pressure Switch did not Open Status Code 22 Abnormal FLAME-PROVING SignalStatus Code 25 Invalid Model Selection or Setup Error Status Code 33 Limit Circuit FaultUnit Operation Hazard Indoor Airflow AdjustmentsAIR Conditioner Sequence of Operation Cooling Operation Utility Interface with Infinity ControlAmber LED Operation Fault Flash Possible Cause Action Code Rated HeatingHigh Stage Low Stage GAS Heat Mode and Adjustments Dehumidification ModeInfinity Controlled LOW Ambient Cooling Sequence of OPERATION-GAS HeatU.S.A Fire and Unit Damage HazardCanada ExampleCheck Burner Flame Check GAS Input Propane GASCheck for Refrigerant Leaks Start-Up AdjustmentsRefrigerant Charge To USE Cooling Charging ChartsNo Charge LOW Charge CoolingFactorywiresprovided Field Connection Required BlackwiresIndoor Fan and Motor Limit SwitchBurner Ignition Main BurnersPressure Switches Refrigerant Circuit Electrical Controls and WiringOutdoor Coil, Indoor Coil, and Condensate Drain Pan Outdoor FanRefrigerant System Control Fault Pressure Switch PROTECTION-REFRIGERANT230V Line Power Disconnect Detection Temperature ThermistorsFailed Thermistor Default Operation Thermistor Sensor ComparisonOCT Page Remedy SymptomTable lO--Troubleshooting Chart Cont-Gas Remove and Store in Job File
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