Installation Instructions - Carrier

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INDOOR CONTROL FAN COIL 2-SPEEDHEAT PUMPHybridHeatTWO -STAGERVS COOLINGO/W2OOHEAT/COOLSTAGE 1Y1/W2Y1Y1HEAT STAGE 3HEAT/COOLSTAGE 2W/W1Y/Y2W1W2W1REMOVE J2JUMPER FORHEAT STAGINGFANGY/Y2Y224 VAC HOTRGDEHUMIDIFYDHUMRDHRREMOVE J1 FORDEHUMIDIFYMODES25HNA24 VAC COMMHUMIDIFYRVS HEATINGOUTDOORSENSORCONNECTIONCHUMBS1S2CHUMIDIFIER(24 VAC)OUTDOORSENSORCA02005Fig. 13 --- Infinity Wiring with 2 -Stage Puron refrigerantHeat Pump (non -communicating)(applies to 25HNA6 Models Only)A06157Fig. 14 --- HybridHeatt Thermostat with Two -StageFurnace and Two -Stage Heat Pump (non -communicating)User InterfaceFan CoilCommunicating AC//HPDCBADCBADCBAHUMCCYOROATHumidifierW24vacFig. 9 - FE4A Fan Coil Wiring with 2-Speed AC/HPA03076Fig. 15 --- Infinity Furnace or Fan Coil Wiring with Communicating Two -Stage AC / HP18
FINAL CHECKSIMPORTANT: Before leaving job, be sure to do the following:1. Ensure that all wiring is routed away from tubing andsheet metal edges to prevent rub -through or wirepinching.2. Ensure that all wiring and tubing is secure in unit beforeadding panels and covers. Securely fasten all panels andcovers.3. Tighten service valve stem caps to 1/12 -turn past fingertight.4. Leave Users Manual with owner. Explain systemoperation and periodic maintenance requirements outlinedin manual.5. Fill out Dealer <strong>Installation</strong> Checklist and place incustomer file.CARE AND MAINTENANCEFor continuing high performance and to minimize possibleequipment failure, periodic maintenance must be performed onthis equipment.Frequency of maintenance may vary depending upon geographicareas, such as coastal applications. See Owner’s Manual forinformation.PURONR (R -410A) REFRIGERANT QUICK REFERENCE GUIDE25HNAS Puron refrigerant operates at 50 -70 percent higher pressures than R -22. Be sure that servicing equipment and replacementcomponents are designed to operate with Puron refrigerantS Puron refrigerant cylinders are rose colored.S Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.S Puron refrigerant systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hosewhen charging into suction line with compressor operatingS Manifold sets should be 700 psig high side and 180 psig low side with 550 psig low -side retard.S Use hoses with 700 psig service pressure rating.S Leak detectors should be designed to detect HFC refrigerant.S Puron refrigerant, as with other HFCs, is only compatible with POE oils.S Vacuum pumps will not remove moisture from oil.S Do not use liquid -line filter driers with rated working pressures less than 600 psig.S Do not leave Puron suction line filter driers in line longer than 72 hours.S Do not install a suction -line filter drier in liquid line.S POE oils absorb moisture rapidly. Do not expose oil to atmosphere.S POE oils may cause damage to certain plastics and roofing materials.S Wrap all filter driers and service valves with wet cloth when brazing.S A factory approved liquid -line filter drier is required on every unit.S Do NOT use an R -22 TXV.S If indoor unit is equipped with an R -22 TXV or piston metering device, it must be changed to a hard shutoff Puron TXV.S Never open system to atmosphere while it is under a vacuum.S When system must be opened for service, recover refrigerant, evacuate then break vacuum with dry nitrogen and replace filter driers.Evacuate to 500 microns prior to recharging.S Do not vent Puron refrigerant into the atmosphere.S Do not use capillary tube coils.S Observe all warnings, cautions,andbold text.S All indoor coils must be installed with a hard shutoff Puron TXV metering device.19
Page 1 and 2: 25HNAInfinityt Series Heat Pumps wi
Page 3 and 4: OUTDOOR WALLCAULKINSTALLATIONNOTE:
Page 5 and 6: STEP 7 —In Long -Line Application
Page 7 and 8: Evacuate Refrigerant Tubing and Ind
Page 9 and 10: STEP 13 —Start-Up!CAUTIONUNIT OPE
Page 11 and 12: 25HNAUTILITY RELAY *UTILITY SIGNALO
Page 13 and 14: Heating Check Chart ProcedureTo che
Page 15 and 16: Contactor Shorted DetectionIf there
Page 17: OPERATIONStandby - no call for unit

Installation Instructions - Carrier

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