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Carrier 38TXA User Manual

Page 7

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Fig. 7—Typical 24-v Circuit Connections (Continued)

A95282

G

W2

C

R

FAN COIL

C

G

Y

W

R

24 VAC HOT

HEAT STAGE 1

COOL STAGE 1

INDOOR FAN

AIR

CONDITIONER

SEE

NOTE 2

FA, FB, FC,
FD, FF

NON-CORPORATE

NON-PROGRAMMABLE

THERMOSTAT

MODEL AC

A95502

C

24 VAC HOT

CORPORATE

NON-PROGRAMMABLE

THERMOSTAT

MODEL AC

FK4C

FAN COIL

AIR

CONDITIONER

HEAT STAGE 1

COOL STAGE 1

INDOOR FAN

SEE

NOTE

2

Y/Y2

W1

C

W/W1

G

Y/Y2

R

C

O

W2

Y1

G

R

24 VAC COM

D

H

A95283

G

W/W1

C

R

C

G

Y

W

R

24 VAC HOT

HEAT STAGE 1

COOL STAGE 1

INDOOR FAN

NON-CORPORATE

NON-PROGRAMMABLE

THERMOSTAT

MODEL AC

AIR

CONDITIONER

SEE

NOTE 2

Y/Y2

SINGLE

STAGE

FURNACE

A95503

C

24 VAC HOT

CORPORATE

PROGRAMMABLE

THERMOSTAT

MODEL AC

FK4C

FAN COIL

AIR

CONDITIONER

HEAT STAGE 1

COOL STAGE 1

NOT USED

SEE

NOTE

2

Y/Y2

W1

G

W/W1

O/W2

Y/Y2

R

G

W2

Y1

C

O

R

INDOOR FAN

24 VAC COM

NOT USED

NOT USED

C

L

B

COOL STAGE 1

INDOOR FAN

S2

S1

Y1/W2

NOT USED

D

H

7