Connection diagram, Ladder diagram – Bryant 575B User Manual
Page 3

—
3
—
RV
Y
R
BK
PL
Y
CC
BL
BK
BL BR
CCH
PS2
Y
DF
C
PS1
O
W
R
BK
BK
FM
Y-RV
DEFROST
CONTROL
BK
R
BL
R-RV
R
BR
CAP
FAN
L2
T2
L1
L3
T1
T3
T2
COIL
BK
SWITCH
LOW AMBIENT
3
1
LOW
AMBIENT
2
COIL
RELAY
R
RV
COIL
SEN
DEFROST HEAT
COMPRESSOR
HEAT/COOL
COMMON
24 VAC
W
Y
L1
BK
BK
L2
L3
BL
T1
COMP
T3
DANGER: ELECTRICAL SHOCK HAZARD
DISCONNECT POWER BEFORE SERVICING
R
CONNECTION DIAGRAM
O
BL
O
BL
ATTACH GROUND
PS2
PS1
LP/HP
LP/HP
TWO SWITCH WIRING
R
POWER SUPPLY PER
N.E.C. AND LOCAL
CODES 208/230 VAC,
60 HZ, 3 PH.
GROUND EQUIPMENT
PER N.E.C. AND
LOCAL CODES.
BK
BL
BL
BL
(WHEN
USED)
PRI
TRANS
SEC
R
BL
G
R
BL
L1
T1
CONT.
+t
°
T3
COMPRESSOR
CONTACTOR
L3
LADDER DIAGRAM
FAN
Y-RV
RV
RV
COIL
CC
C
DEFROST
CONTROL
PS2
COIL
PS1
DF
C
R
Y
W
O
R-
RV
LP/HP
SEN
FM
CAP
DEFROST HEAT
COMPRESSOR
HEAT/COOL
COMMON
24 VAC
LAR
2
1
LAS
LOW AMBIENT
RELAY
208/230 VAC, 60 HZ, 3 PH POWER SUPPLY
DFC
FAN
(WHEN
USED)
RES
E
T
24V
TRANSFORMER NOTE 4
208/230V
L2
T2
CONTACTOR
T2
T1
T3
BK
CCH
Fig. 1 — Control Schematic and Component Arrangement — 575B072 (208/230 V)