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Wiring Diagram for BACU51D2CHPQ
USE COPPER CONDUCTORS ONLY.
DISCONNECT BY OTHERS.
208V/3ÿ/60HZ
POWER SUPPLY
L1 L2 L3
GND
MINIMUM WIRE #18 AWG UNLESS OTHERWISE SPECIFIED.
PLM
L1 L2 L3
# 14 AWG
# 4 AWG # 4 AWG
# 6 AWG
CB5
15 A
# 14 AWG # 14 AWG # 14 AWG
CB1
70 A
CB2
90 A
CB3
80 A
CB4
80 A
C5
25 A
C6
25 A
C7
25 A
C8
25 A
# 8 AWG
C1
50 A
# 6 AWG
C2
75 A
# 6 AWG
C3
60 A
# 6 AWG
C4
60 A
M1 M3 M5 M7
COMPRESSOR 1
ZR12
COMPRESSOR 2
ZR19
COMPRESSOR 3
ZR16
ALL COMPRESSORS THERMALLY PROTECTED
SEE COMPRESSOR ELECTRIC BOX
COVERS FOR PROPER CONNECTION
COMPRESSOR 4
ELECTRICAL
ENTRANCE
ZR16
M8 M6 M4 M2
M7 M5 M3 M1
FAN ARRANGEMENT
COMP-4
COMP-3
COMP-2
COMP-1
C1-C4 --- COMPRESSOR CONTACTORS
C5-C12 -- CONDENSER FAN CONTACTORS
C1A1-C4A1--- C1 - C4 AUXILIARY CONTACTS
CCH ----- CRANKCASE HEATERS
CB1-CB7 - CIRCUIT BREAKERS
F1 ------ FUSE (CLASS CC)
FCT ----- FAN CYCLE TEMP CONTROL
HPS ----- HIGH PRESSURE SWITCH
LSV ----- LIQUID LINE SOLENOID VALVE
LPS ----- LOW PRESSURE SWITCH
LEGEND
M1-M8 --- CONDENSER FANS(TP)
PLM ----- PHASE LINE MONITOR
PDS ----- PUMPDOWN SWITCH
R1-R4 --- RELAYS
SSM1-4 -- SOLID STATE MODULE w/ 30 MIN TIME DELAY
SW ------ TOGGLE SWITCHES
TD1-TD4 --- STAGE START TIMER
TD7-8 --- START TIMER
FACTORY WIRING
FIELD WIRING
M2
C9
25 A
# 6 AWG
CB6
15 A
# 14 AWG
M4
C10
25 A
# 14 AWG
F1
15 A
208V
TRANSFORMER
120V
W
B
TO
SHEET 2
# 14 AWG # 14 AWG
M6
C11
25 A
M8
C12
25 A
BACU51D2CHPQ
16
Wiring Diagram for BACU59D2CHPQ
USE COPPER CONDUCTORS ONLY.
DISCONNECT BY OTHERS.
208V/3ÿ/60HZ
POWER SUPPLY
L1 L2 L3
GND
MINIMUM WIRE #18 AWG UNLESS OTHERWISE SPECIFIED.
PLM
L1 L2 L3
# 14 AWG
# 4 AWG # 4 AWG
# 4 AWG
CB5
15 A
# 14 AWG # 14 AWG # 14 AWG
CB1
70 A
CB2
90 A
CB3
90 A
CB4
90 A
C5
25 A
C6
25 A
C7
25 A
C8
25 A
# 8 AWG
C1
50 A
# 6 AWG
C2
75 A
# 6 AWG
C3
75 A
# 6 AWG
C4
75 A
M1 M3 M5 M7
COMPRESSOR 1
ZR12
COMPRESSOR 2
ZR19
COMPRESSOR 3
ZR19
ALL COMPRESSORS THERMALLY PROTECTED
SEE COMPRESSOR ELECTRIC BOX
COVERS FOR PROPER CONNECTION
COMPRESSOR 4
ELECTRICAL
ENTRANCE
ZR19
M8 M6 M4 M2
M7 M5 M3 M1
FAN ARRANGEMENT
COMP-4
COMP-3
COMP-2
COMP-1
C1-C4 --- COMPRESSOR CONTACTORS
C5-C12 -- CONDENSER FAN CONTACTORS
C1A1-C4A1--- C1 - C4 AUXILIARY CONTACTS
CCH ----- CRANKCASE HEATERS
CB1-CB7 - CIRCUIT BREAKERS
F1 ------ FUSE (CLASS CC)
FCT ----- FAN CYCLE TEMP CONTROL
HPS ----- HIGH PRESSURE SWITCH
LSV ----- LIQUID LINE SOLENOID VALVE
LPS ----- LOW PRESSURE SWITCH
LEGEND
M1-M8 --- CONDENSER FANS(TP)
PLM ----- PHASE LINE MONITOR
PDS ----- PUMPDOWN SWITCH
R1-R4 --- RELAYS
SSM1-4 -- SOLID STATE MODULE w/ 30 MIN TIME DELAY
SW ------ TOGGLE SWITCHES
TD1-TD4 --- STAGE START TIMER
TD7-8 --- START TIMER
FACTORY WIRING
FIELD WIRING
M2
C9
25 A
# 4 AWG
CB6
15 A
# 14 AWG
M4
C10
25 A
# 14 AWG
F1
15 A
208V
TRANSFORMER
120V
B
W
TO
SHEET 2
# 14 AWG # 14 AWG
M6
C11
25 A
2
M8
C12
25 A
BACU59D2CHPQ
17
Control Circuit Wiring Diagram for BACU51 and BACU59
18
Submittal
19
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