Bryant 575C, 575B dimensions 541A180/524A-H

	FIELD		TB1	HC1
			L1
	POWER
DISCONNECT			L2					HTR1
	SUPPLY			HC1
			L3
3-Ph ONLY		EQUIP GND		CIRCUIT BREAKER
				(5 HP AND LARGER)
					IFC		1
				11	21 BLK
524A-H300				12	22	BLK	2	IFM
TERMINAL BLOCK				13	23	BLK	3
TB1
		FIELD POWER					UNIT WIRING

RWIRING

Y1		524A-H
Y2	HEAT ACCESSORY
W1		W1
W2		W2
G	WHT C1 IFC C2	C
C	WHT			RELAY BOARD
X		R
				(33ZCRLYBRD)
		Y1	G	FAN
		Y2
			G2/(W)	(VALVE)
		W1
			G3/(Y)	HI(COOL)
		W2
				MED(HEAT)
		G	COM
				LO
		C
		X
		TSTAT*

		LEGEND
CR	— Control Relay (Field-Supplied)
EQUIP —		Equipment
GND	—	Ground
HC	—	Heating Contactor
HTR	—	Electric Heater
IFC	—	Indoor-Fan Contactor
IFM	—	Indoor-Fan Motor
TB	—	Terminal Block
TSTAT —		Thermostat

Factory Wiring

Field Control Wiring

*Do not configure TSTAT for heat pump. NOTE: Use copper conductors only.

HEAT PUMP A

541A180

TB2

R

B

W1

A2

Y1 CR

Y2

Q

C

P

X

1

2

HEAT PUMP B

575C120

TB2
R
Y1
Y2
W1	CR

W2

G

C

X

RELAY BOARD (33ZCRLYBRD)

GFAN

G2/(W) (VALVE)

G3/(Y)HI(COOL)

MED(HEAT)

COM

LO

CR

Fig. 13 — Wiring Diagram — Duplex 575C120 and 541A180 With 524A-H300 and Electric Heat

LEGEND

AFS — Airflow Switch (Sail Switch)

CR — Control Relay

DB — Defrost Board

Factory Wiring

Field Control Wiring

NOTES:

1.Locate YEL wire between Y on DB and terminal 5 of CR3 and cut.

2.Splice airflow switch (AFS) (field supplied) contact wires (field provided) to two ends of cut YEL wire as depicted.

Fig. 14 — Typical Field Wiring for Airflow Switch —

541A180/524A-H

—14—