Carrier FV4C Installation Instructions Manual

Also see for FV4C: Installation guide

Contents

installation instructions

17Table 7 – Wiring connection of FV Fan Coil Wiring Harness16---IN PLUG ON WIRING HARNESS TO MOTOR WIRING HARNESS CONNECTION TO EASY SELECT BOARDPin on16---PinPlugDescription Pin on 12---Pin Plug orSet---up Selection Wire ColorSignal on Pin withScrew TerminalJumpered to R*1 Common Pin 9 on PL--- 1 Brown2 W1 Pin 7 on PL--- 1 Violet 24VAC**3 Common Auxiliary Heat Stage 1 Pin 10 on PL--- 1 Orange4 On/Off Delay Selection On/Off Delay Selection White5 AC/HP Size Selection AC/HP Size Selection Blue6 Y1 Low Speed AC or HP Pin 3 on PL--- 1 Black (--- ) 12VDC**7 AC/HP CFM AdjustSelectionAC/HP CFM AdjustSelection Black8 Not Used N/A Not Used9 System Type Selection System Type Selection Orange10 Dehumidify Pin 12 on PL--- 1 Gray 0V (24VAC on no call)11 Aux Heat Size Selection Aux Heat Size Selection Violet12 24v AC Pin 8 on PL--- 1 Red 24VAC continuous13 W2 Auxiliary Heat Stage 2 Pin 4 on PL--- 1 White 24VAC**14 Y/Y2Single Speed AC or HP,High Speed 2--- SpeedAC or HPPin 2 on PL--- 1 Yellow (--- ) 12VDC*15 G Fan Pin 1 on PL--- 1 Green 24VAC**16 Not Used N/A Not Used* Check voltages with 16 ---Pin Plug disconnected from motor.** These signals will start motor.PURONR (R--410A) QUICK REFERENCE GUIDES Puron refrigerant operates at 50--70 percent higher pressures than R--22. Be sure that servicing equipment and replacementcomponents are designed to operate with PuronS Puron refrigerant cylinders are rose colored.S Recovery cylinder service pressure rating must be 400 psig, DOT 4BA400 or DOT BW400.S Puron systems should be charged with liquid refrigerant. Use a commercial type metering device in the manifold hose whencharging 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, 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 filterdriers. Evacuate to 500 microns prior to recharging.S Do not vent Puron into the atmosphere.S Do not use capillary tube coils.S Observe all warnings, cautions, and bold text.S All indoor coils must be installed with a hard shutoff Puron TXV metering device.FV4C

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