Carrier T--298 service manual Heat Pump -- Upper Unit -- Ducted

Page 46

PLUG CONNECTS TO CEILING UNIT. SEE DIAGRAM SUPPLIED WITH CEILING UNIT FOR ADDITIONAL WIRING.

1

2

3

1

2

3

4

1

2

1

2

CN

BRN

ODC Th

 

 

 

 

 

 

BLK

ODA Th

 

 

 

 

 

 

 

 

CN

 

 

 

FAN MOTOR

 

 

 

 

 

 

 

BLK

 

1

BLK

 

 

 

 

 

 

 

 

 

 

 

BLU

 

2

BLU

 

 

 

 

 

 

 

 

 

 

 

RED

 

3

RED

 

 

 

GRN/YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN/YEL

 

5

WHT

 

 

 

 

 

 

 

 

 

 

 

 

 

6

 

 

BRN

 

 

 

 

 

 

 

 

CONTROL EVAP.

 

 

 

 

 

 

BRN

BOX

 

 

 

 

 

 

WHT

WHT

 

 

 

 

 

 

 

YEL

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COMPRESSOR

 

 

 

OLP

 

 

 

 

 

 

 

(IF USED)

 

 

 

R

BLK(BLU)

RVC

 

1

2

 

YEL

C

 

 

 

 

 

 

 

 

 

(3)

 

S

 

 

 

 

 

 

 

LEGEND

CN :HOUSING CONNECTOR

PTC :START THERMISTOR OLP :OVERLOAD PROTECTOR RVC :REVERSING VALVE COIL

ODA Th :OUTDOOR AIR THERMISTOR ODC Th :OUTDOOR COIL THERMISTOR

F

CH CAPACITOR

RED BLU

RED

PTC

BLU

Figure 4--8 Heat Pump -- Upper Unit -- Ducted

LEGEND

IDC Th: INDOOR COIL THERMISTER

RA Th: ROOM AIR THERMISTER

ODC Th: OUTDOOR COIL THERMISTER

ODA Th :OUTDOOR AIR THERMISTOR

RVC: REVERSING VALVE COIL

D1: DIODE

K: RELAY

RA Th

BLK

CN1

 

 

1

 

 

 

CONTROL PCB

 

 

2

 

 

3

ASS’Y

 

 

4

 

 

 

IDC Th

BRN

 

 

CN9 1 2 3 4 5 6 7 8

CN9 1 2 3 4 5 6 7 8

DISPLAY PCB AS

 

 

 

 

PLUG CONNECTS TO UPPER UNIT.

 

 

 

NOTE

 

 

 

 

SEE DIAGRAM SUPPLIED WITH UPPER UNIT

 

 

 

 

 

 

 

 

 

 

 

 

 

FOR ADDITIONAL WIRING.

 

 

*

FACTORY WIRING

 

 

 

 

 

 

 

 

ODC

ODA

 

 

 

 

 

 

COMPRESSOR

*

FIELD WIRING

RVC

 

MOTOR

 

(115VAC HIGH VOLT.)

1

2

3

1

2

1

2

3

4

2 1

 

*

FIELD WIRING

BLK

 

RED

WHT

BLK

 

BLU

GRN/YEL

 

WHT

 

(12VDC LOW VOLT.)

 

 

 

 

 

 

 

 

 

 

 

BLK

RED

 

 

 

 

 

BRN

 

 

BLK

 

 

 

 

 

 

 

 

 

 

 

CN5

 

 

1

2 CN5

1

2

3

4 CN3

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

 

 

 

 

 

 

 

 

 

 

 

 

2

 

 

 

 

 

 

 

 

 

 

 

 

3

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

 

 

 

 

 

 

 

 

 

BLK

2

2

2

 

 

 

 

 

 

 

L

 

3

3

3

 

K7

K2

K3

K4

K1

 

 

4

4

4

 

N2

 

115VAC POWER

 

 

 

 

 

 

 

 

5

5

5

 

 

 

 

 

 

 

N1

 

WHT

6

6

6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GRN/YEL

7

7

7

 

 

 

 

 

 

 

 

8

8

8

POWER PCB ASS’Y

 

 

 

 

 

CN4

 

CN4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1

1

 

 

 

 

 

FUSE

D1

 

RED

 

 

K6

 

 

 

 

 

2

(+)

2

2

2

 

 

 

 

 

 

 

 

 

 

 

250V 3.15A

1

 

(--)12VDC POWER

3

3

3

 

 

 

 

 

BLK

CN6

 

 

 

 

 

 

 

 

 

CN1

 

 

CN6

 

 

 

 

 

 

 

 

 

 

 

 

 

CN2

1 2

 

 

 

 

 

 

 

 

 

 

 

BLU

BLU

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FURNACE SIGNAL

 

 

Figure 4--9 Heat Pump -- Ceiling Unit -- Ducted

T--298

4-4

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Page 45 Page 47
Contents Model AirV AirV Operating Precautions Safety SummaryGeneral Safety Notices Maintenance PrecautionsSpecific Warning and Caution Statements Specific Warnings and CautionsSafety 298 Table of Contents Table of Contents List of Figures Figure NumberList of Tables Table NumberSerial Number Identification Section DescriptionIntroduction Design Change DescriptionsUpper Unit Roof Ceiling UnitMANUAL--FORM no Equipment Covered Type of Manual Additional Support ManualsFor Part no Ceiling Unit Component Identification Free--Blow Component Identification -- Low Profile -- Upper Unit Component Listing--Ceiling Unit For Ducted Systems Supply AIR Return AIRFree Blow Type START--UP CationsRefrigerant CYCLE--STANDARD System Refrigerant Flow Schematic -- Heat Pump -- Cool Mode Cooling Refrigerant Cycle -- Heat PumpPage Section Troubleshooting Condenser AIR not Adequate Heater Cycles on Limit Switch HEAT/ Cool Version onlyInsufficient COOLING, Cooling AIR not Adequate Insufficient CoolingClearing Diagnostic Alarms Inadequate Heat HEAT--PUMPPriority Malfunction Preventative Maintenance Section Service and MaintenanceService -- General Ceiling Grill -- Free Blow 3.3.3 Ceiling Panel Removal Indoor Thermostat Removal Indoor Thermostat 3.3.7 Air Sweep RemovalCeiling Unit -- Ducted Systems Control Box Assembly RemovalFilter Removal PCB Display Removal Service -- Upper Unit -- STANDARD, HC & HPFuse Removal Compressor Replacement 15 Control BoxUpper Scroll Assembly Removal 19 Motor AssemblyAir Handling System Removal 23 Blower WheelLine Voltage -- 10% 27 Upper Scroll Assembly Locking Tabs b. & Screw Locations c 30 Condenser Fan Assembly Retaining Ring Condenser Motor Removal 34 Evaporator Motor Locking TabsBe permanent. It cannot be changed back to Capacitor RemovalChange from Fahrenheit to Celsius will Fahrenheit38 Remote Control Components SET Thermostat Configuration LCD DisplayCheck Thermostat Operation Upper Unit Powerbox AssemblyThermostat Thermostat Powerbox Assembly Ac to ry Wiri ng Fie ld Wiri ngSection Wiring Schematics Upper Unit Schematic -- Standard & HCCeiling Unit Schematic -- Cooling Only Heat Pump -- Ceiling Unit -- Free Blow Heat Pump -- Upper Unit -- Ducted 10 Ceiling Unit -- Wall Thermostat -- Ducted & Free Blow Wall Mounted ThermostatsIndex Ceiling Unit -- Ducted Systems Ceiling Unit -- Free Blow
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