Carrier Air Conditioner Wiring Diagram for Efficient Installation and Troubleshooting
Page 7

PROGRAMMABLE

SINGLE-STAGE

TWO-SPEED

THERMOSTAT

MODEL 2S

FURNACE

AIR CONDITIONER

VARIABLE SPEED

80% NON-CONDENSING FURNACE

COOL STAGE 1

 

 

 

 

 

 

 

 

 

 

Y1/W2

 

 

 

 

Y1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FAN

 

G

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT STAGE 1

W/W1

 

 

W

 

 

 

 

 

 

 

 

 

 

 

 

Y2

 

 

 

 

 

 

 

 

 

 

COOL STAGE 2

Y/Y2

 

 

Y

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

N/A

O/W2

 

 

 

 

 

 

 

 

 

 

 

 

 

R

 

 

24 VAC HOT

 

R

 

 

 

R

24 VAC COMM

 

C

 

 

C

 

C

N/A

 

B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

S1

 

 

 

 

 

SENSOR

 

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See notes 1, 2, 3, and 5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A01501

NON-PROGRAMMABLE

 

TWO-STAGE

 

 

FURNACE WITH

 

THERMOSTAT

 

TWO-SPEED

 

PSC BLOWER

MODEL 2S

 

 

 

AIR CONDITIONER

NON-PROGRAMMABLE

THERMOSTAT

MODEL 2S

COOL STAGE 1

Y1/W2

 

 

HEAT STAGE 2

O/W2

 

 

HEAT STAGE 1

W/ W1

 

 

COOL STAGE 2

Y/ Y2

FAN

 

G

 

 

24 VAC HOT

R

24 VAC COM

 

C

N/A

 

B

 

 

 

 

OUTDOOR

S1

 

 

SENSOR

 

 

 

CONNECTIONS

S2

 

 

 

 

OAFS

BOARD Y1

FURNACE

TWO-SPEED

AIR CONDITIONER

BOARD

 

W2

Y1

 

W/W1

 

Y/Y2

Y2

G

 

R

R

COM

C

HUM

 

DEHUM

PL9-10

 

 

MOTOR

 

24 VAC HOT

R

R

R

24 VAC COMM

C

C

C

See note 1, 2, 3, 4, and 10

A01504

VARIABLE SPEED

80% NON-CONDENSING FURNACE

HEAT STAGE 1

W/W1

 

 

 

 

 

W/W1

 

 

 

COOL STAGE 2

 

 

 

 

 

 

 

 

 

 

 

 

 

Y/Y2

 

 

 

 

 

Y/Y2

 

 

Y2

FAN

 

G

 

G

 

HEAT STAGE 2

 

 

 

 

 

W2

 

O/W2

 

 

 

 

 

COOL STAGE 1

 

Y1

 

 

 

 

 

 

Y1

N/A

 

 

 

 

 

 

 

 

 

 

 

B

 

HUM

 

 

 

 

 

 

 

S1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

 

 

 

 

 

 

 

SENSOR

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See notes 1, 2, 3, 4, and 10

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

A01502

NON-PROGRAMMABLE

 

TWO-STAGE

TWO-SPEED

 

FURNACE WITH

THERMOSTAT

 

PSC BLOWER

AIR CONDITIONER

MODEL 2S

 

 

MOTOR

 

 

 

 

 

 

 

 

 

 

 

 

COOL STAGE 1

 

 

 

 

 

 

 

 

 

 

 

 

Y1/W2

 

 

 

 

 

 

 

 

Y1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

PROGRAMMABLE

THERMOSTAT

MODEL 2S

COOL STAGE 1

Y1/W2

 

 

HEAT STAGE 2

O/W2

 

 

HEAT STAGE 1

W/W1

 

 

COOL STAGE 2

Y/ Y2

FAN

 

G

 

 

24 VAC HOT

R

24 VAC COM

 

C

N/A

 

B

 

 

 

 

OUTDOOR

S1

SENSOR

 

 

 

CONNECTIONS

S2

 

 

 

 

OAFS

BOARD Y1

FURNACE

TWO-SPEED

AIR CONDITIONER

BOARD

 

W2

Y1

 

W/W1

 

Y/Y2

Y2

G

 

R

R

COM

C

HUM

 

DEHUM

PL9-10

FAN

 

G

 

 

 

G

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT STAGE 1

W/W1

 

 

W/W1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

COOL STAGE 2

 

 

 

 

 

 

 

 

 

 

Y/Y2

 

 

Y/Y2

 

Y2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

HEAT STAGE 2

 

O/W2

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

R

R

24 VAC COMM

 

C

 

 

 

C

C

 

 

 

 

 

 

 

 

 

 

N/A

 

B

 

 

HUM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTDOOR

 

 

S1

 

 

 

 

 

 

 

 

SENSOR

 

 

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

CONNECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

See notes 1, 2, 3, 5, and 10

A01503

NON-PROGRAMMABLE

THERMOSTAT

MODEL 2S

 

 

 

 

 

 

HEAT STAGE 2

O/W2

 

 

 

 

 

 

 

COOL STAGE 1

Y1

 

 

 

 

 

 

 

HEAT STAGE 1

W/W1

 

 

 

 

COOL STAGE 2

Y/Y2

 

FAN

 

 

 

 

G

 

 

 

 

 

 

 

24 VAC HOT

 

R

 

 

 

 

 

 

 

24 VAC COMM

 

C

 

 

 

 

 

 

 

N/A

 

B

 

 

 

 

 

 

 

OUTDOOR

 

S1

 

 

 

 

 

SENSOR

 

 

 

 

 

CONNECTION

 

S2

 

 

 

 

 

 

 

 

 

 

 

 

 

See notes 1, 2, 3, 5, and 10 A01505

VARIABLE-SPEED

 

TWO-SPEED

CONDENSING

 

FURNACE

AIR CONDITIONER

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

W2

 

 

 

 

 

 

 

 

 

 

Y1

W/W1

Y/Y2 Y2

G

R R

DEHUM

DE JUMPER

CC

HUM

Fig. 11—Typical 24V Wiring Diagram (Cont)

See notes 1, 2, 3, and 4 A01506

7

Page 6 Page 8
Image 7
Page 6 Page 8
Contents Book Catalog No Form 38TDB-4SI Replaces 38TDB-3SI Tab Check Equipment and Job SiteUnpack Unit A98516Clearance Requirements DimensionsInstall on a Solid, Level Mounting Pad → -Install TXVLONG-LINE Applications → FAN CoilMake Piping Connections Sweat Connection Install LIQUID-LINE Filter DrierOutdoor Unit Connected to FACTORY-APPROVED Indoor Unit Refrigerant TubingMake Electrical Connections Install Electrical AccessoriesA01496 See notes 1, 2, 3, 6, 8, 10,A01495 See notes 1, 2, 3, 4,A01502 See notes 1, 2, 3,A01501 See note 1, 2, 3, 4, A01504Airflow Selection for 58CVA/58MVP Furnaces Make Airflow SelectionsAirflow Selection for FK4C, FV4A, or 40FK FAN Coils A01222 Accessory Usage† Required for all applications A01192 Start-UpA00430 Check Charge Required Liquid-Line Temperature FSystem Functions and Sequence of Operation Control Function LED Code High Capacity Only SubcoolingTwo-Speed Compressor Winding Resistance at 70F ± Temperature ThermistorsFinal Checks A01513 Wiring Diagram-024, 036A01439 Wiring Diagram-037Wiring Diagram-060
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