Carrier 38TXA instruction manual ÐTypical 24-vCircuit Connections

CORPORATE

NON-PROGRAMMABLE

THERMOSTAT

CORPORATE

NON-PROGRAMMABLE

THERMOSTAT	FA, FB, FC,
	FD, FF	AIR
MODEL AC
	FAN COIL	CONDITIONER

			SINGLE			AIR
MODEL AC				STAGE
		FURNACE			CONDITIONER
24 VAC HOT	R			R
24 VAC COM	C			C				SEE
							C
HEAT STAGE 1	W/W1			W/W1
								NOTE 2
COOL STAGE 1	Y/Y2			Y/Y2
INDOOR FAN
	G			G

24 VAC HOT

24 VAC COM

HEAT STAGE 1

COOL STAGE 1

INDOOR FAN

R R

C

C

W/W1W2

Y/Y2

G G

C

SEE

NOTE 2

A94385

CORPORATE

PROGRAMMABLE

THERMOSTAT				SINGLE			AIR
				STAGE
MODEL AC			FURNACE			CONDITIONER
24 VAC HOT
		R			R
INDOOR FAN
		G			G
HEAT STAGE 1
	W/W1				W/W1
COOL STAGE 1
	Y/Y2				Y/Y2
NOT USED
	O/W2
NOT USED								C
	Y1/W2
24 VAC COM
		C			C
NOT USED
		B
NOT USED
		L
OPTIONAL
		S1
OUTDOOR
SENSOR		S2
CONNECTION

A94384

SEE

NOTE 2

CORPORATE
PROGRAMMABLE
THERMOSTAT			FA, FB, FC,			AIR
MODEL AC			FD, FF
			FAN COIL		CONDITIONER
24 VAC HOT
		R		R
INDOOR FAN
		G		G
HEAT STAGE 1
	W/W1			W2
COOL STAGE 1
	Y/Y2							SEE
NOT USED
	O/W2
								NOTE 2
NOT USED							C
	Y1/W2
24 VAC COM
		C		C
NOT USED
		B
NOT USED
		L
OPTIONAL
		S1
OUTDOOR
SENSOR		S2
CONNECTION

A94386

A94387

Fig. 7ÐTypical 24-v Circuit Connections

6