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Carrier Thermostat User Manual

Page 11

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Fig. 19—Single-Speed Packaged Air Conditioner

with Single-Stage Gas Furnace (48SS, SX)

A98502

24 VAC HOT

FAN

HEAT STAGE 1

COOL STAGE 1

N/A

N/A

R

G

W/W1

Y/Y2

Y1/W2

O/W2

B

S1

S2

MODEL AC

THERMOSTAT

RED

GRN

WHT

YEL

BRN

See notes 1 and 11

C

24 VAC COMM

N/A

SPLICE

BOX

SUGGESTED DIP

SWITCH SETTINGS

ON

A

B

C

D

OUTDOOR

SENSOR

CONNECTION

Fig. 17—Two-Speed Air Conditioner

with Variable-Speed Fan Coil

(FK, FV, 40FKA)—Model 2S Thermostat

A98500

24 VAC HOT

FAN

COOL STAGE 1

COOL STAGE 2

HEAT STAGE 1

HEAT STAGE 2

R

G

R

G

24 VAC COMM

N/A

OUTDOOR

SENSOR

CONNECTION

C

B

S1

S2

C

C

R

MODEL 2S

THERMOSTAT

EASY SELECT

TERMINAL BOARD

J1

JUMPER

REMOVE

J2 JUMPER

FOR HEAT

STAGING

TWO-SPEED

AIR CONDITIONER

See notes 2 and 8

DH

Y1

Y1

W/W1

O/W2

Y1/W2

W1

Y/Y2

Y2

Y/Y2

O

W2

SUGGESTED DIP

SWITCH SETTINGS

ON

A

B

C

D

OFF OFF ON OFF

Fig. 20—Single-Speed Packaged Air Conditioner

with Single-Stage Electric Heat (50SS, SX, ZP)

A98503

N/A

FAN

HEAT STAGE 1

COOL STAGE 1

N/A

24 VAC HOT

R

G

W/W1

Y/Y2

O/W2

B

S1

S2

MODEL AC

THERMOSTAT

SPLICE

BOX

GRN

WHT

BRN

WHT

BRN

See notes 1, 11, and 12

C

Y1/W2

24 VAC COMM

N/A

OUTDOOR

SENSOR

CONNECTION

HEATER

CONTROL BOX

RED

YEL

SUGGESTED DIP

SWITCH SETTINGS

ON

A

B

C

D

OFF OFF OFF OFF

Fig. 18—Two-Speed Heat Pump
with Variable-Speed Fan Coil

(FK, FV, 40FKA)—Model 2S Thermostat

A98501

24 VAC HOT

FAN

COOL/HEAT

STAGE 1

RVS COOLING

COOL/HEAT

STAGE 2

HEAT STAGE 3

R

R

24 VAC COMM

N/A

OUTDOOR

SENSOR

CONNECTION

C

B

S1

S2

C

G

G

C

W2

W3

O

Y1

R

MODEL 2S

THERMOSTAT

EASY SELECT

TERMINAL BLOCK

J1 JUMPER

J2 JUMPER

TWO-SPEED

HEAT PUMP

See notes 3, 8, 9, and 11

DH

Y1

O

Y1/W2

Y/Y2

Y2

Y/Y2

O/W2

W/W1

W1

W2

SUGGESTED DIP

SWITCH SETTINGS

ON

A

B

C

D

OFF OFF OFF OFF

11