Day and Night VS Air Handler Installation.pdf

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INSTALLATION INSTRUCTIONSFan Coils: FVM2X, FVM4XFigure 22CONTROL SIGNALS (FAN CONTROL BOARD & 16 -Pin PLUG)J2 JUMPER PULL FORHEAT STAGINGSEC1 SEC2HLOW VOLTAGE SCREW TERMINALSDEHUMIDIFICATION INPUTAUX HEAT KW/CFMR24 VAC HOTVIOAC/HP SIZEJ2W1W 2AUXILARY HEAT STAGE 1AUXILIARY HEAT STAGE 2BLUY 1LOW STAGE COMPRESSORORNAC HP-COMFORT HP- EFFNOMSYSTEM TYPEAC/HP CFM ADJUSTLOHIY/Y 2GSINGLE OR HI STAGE COMPRESSORFANBLKON/OFF DELAYOREVERSING VALVE090309000ENHCCOMMONWHTLOCONTINUOUS FANMED HI YELAUX1HUM1YELCEBD430226-01B CESS430226-01BAUX2HUM2G Y/Y2 W 2 24V HPIN 12HEATER/MOTOR24VACGRY16 15 14 13 12 11 10 912--PIN CONNECTOR(PL 1) PIN 18 7 6 5 4 C 2 1Y 1 16 -PIN PLUG C W 1 CA03004C. USE THE FOLLOWING PROCEDURE TO CHECKCONTROL SIGNALS:THERMOSTAT1. Remove all thermostat wires from Fan ControlBoard.2. Jumper screw terminals (one at a time): R--G,R--Y/Y2, R--Y1, R--W1. If motor runs in all cases,thermostat is miswired, configured incorrectly ordefective. If motor runs in some cases, but notothers, continue to check wiring harness and circuitboard.WIRING HARNESS1. Shut off power to unit; wait five (5) minutes.2. Remove 5--pin plug from motor.3. Remove 16--pin from motor.4. Replace 5--pin plug and turn power on.5. Check for appropriate voltages on 16--pinconnector with screw terminals jumpered. (Refer toTable 6 for values and refer to examples below.)If signals check correctly and motor does not run, inspectwiring harness for loose pins or damaged plastic thatcould cause poor connections. If connections are good,either control module or motor is defective. If propersignals are not present, check circuit board usingprocedure below:12--PIN PLUG (PL--1) ON FAN CONTROL BOARD1. Unplug harness from board.2. Check for appropriate voltages on pins with FanControl Board screw terminals jumpered. (Refer toTable 6 for values and refer to example below.)If proper signals are not present, replace Fan ControlBoard. If present at board and not at 16--pin connector,wiring harness is defective.TROUBLESHOOTING EXAMPLE:Motor is not running on a call for heat pump heating.System is a single--stage heat pump.1. After performing checks in Thermostat section,follow Steps 1 through 5 in Wiring Harness section.Then proceed with example.2. With all thermostat wires removed from Fan ControlBoard, place a jumper wire between R and Y/Y2low--voltage screw terminals on the Fan ControlBoard.3. Check Table 6 for pin number on 16--pin connectorassociated with the Y/Y2 signal. The correct pin is#14. The far right column shows that (--) 12 VDCshould be present between pin #14 and pin #1(common) on the 16--pin connector.4. Set meter to read DC voltage. Place meter betweenpins #1 and #14 and check for (--) 12 VDC (commonside of meter on pin #1). If signal is present, theproblem is in the module or motor. If signal is not,problem is either in wiring harness or Fan ControlBoard.These steps can be repeated for other modes ofoperation.20 Specifications are subject to change without notice496 01 5001 02
INSTALLATION INSTRUCTIONSFan Coils: FVM2X, FVM4XTable 616 -IN PLUG ON WIRING HARNESS TO MOTORPin on16 -Pin PlugDescriptionWiring Connections of FVM Fan Coil Wiring HarnessPinon12-pinplug or Set -upSelectionWIRING HARNESS CONNECTIONTO FAN CONTROL BOARDWire ColorSignal on Pin withScrew TerminalJumpered to R*1 Common Pin9onPL--1 Brown2 W1 Aux Heat Stage 1 Pin7onPL--1 Violet 24VAC**3 Common Pin10onPL--1 Orange45On/Off DelaySelectionAC/HP SizeSelectionOn/Off DelaySelectionAC/HP SizeSelectionWhite6 Y1 Low Speed AC or HP Pin3onPL--1 Black (--) 12VDC**7AC/HP CFMAdjust SelectionAC/HP CFMAdjust SelectionBlueBlack8 Not Used N/A Not Used9System TypeSelectionSystem TypeSelectionOrange10 Dehumidify Pin12onPL--1 Gray11Aux Heat SizeSelectionAux Heat SizeSelectionViolet0V (24VAC on nocall)12 24V AC Pin8onPL--1 Red 24VAC continuous13 W2 Aux Heat Stage 2 Pin4onPL--1 White 24VAC**14 Y/Y2Single Stage AC orHP, High Speed Pin2onPL--1 Yellow (--) 12DC**Two--Stage AC or HP15 G Fan Pin1onPL--1 Green 24VAC**16 Not Used N/A Not Used* Check voltages with 16--Pin Plug disconnected from motor.** These signals will start motor.D. VERIFY MOTOR WINDING SECTIONTo check Fan Control Board:1. Leave jumper wire in place between R and Y/Y2.2. Check Table 6 under “Wiring Harness Connectionto Fan Control Board” column and row for pin #14 tosee pin# on Fan Control Board that should havevoltage. The correct pin is #2. The column on farright will show voltage that should be presentbetween pin #2 and #9 (or #10 common).3. Place meter between pins #2 and #9 and FanControl Board and check for (--) 12 VDC4. If voltage is present, the wiring harness is bad; if not,the Fan Control Board is bad.Before proceeding with module replacement, check thefollowing to ensure motor winding section is functional.With control module removed and unplugged fromwinding section:1. The resistance between any 2 motor leads shouldbe similar.2. The resistance between any motor lead and theunpainted motor end plate should be greater than100K ohms.If motor winding section fails one of these tests, it isdefective and must be replaced.496 01 5001 02 Specifications are subject to change without notice21
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