Calorex Pro-Pac Series Owners & Installation Manual page 23

MCB CONTACTS / MCB ALARM CONTACTS / MCB AUX CONTACTS SHOWN WITH CIRCUIT
NOTE
BREAKER MANUALLY SWITCHED TO THE ON CONDITION.
WATER FLOW SWITCH CONTACTS SHOWN WITH WATER FLOW AT MAXIMUM RATE
FRIDGE CIRCUIT 2
REVERSING VALVE
FRIDGE CIRCUIT 1
REVERSING VALVE
RELAY
(R1)
B A
9 (COM) 6 (N/O)
CHILL LIGHT
3 (N/C)
7 (COM) 4 (N/O)
1 (N/C)
DELAY
TIMER 2
(6 MINS)
A2
COMPRESSOR 1
CONTACTOR
18 (N/O)
A1 A2
16 (N/C)
DEFROST
LIGHT
COMPRESSOR 2
CONTACTOR
A1 A2 18 (N/O)
16 (N/C)
A2
DELAY
TIMER 3
(7 MINS)
MCB SETTINGS
CONTROL COMPRESSORS 1 & 2
2.5A 38.9A
FRIDGE CIRCUIT 1
VALVE,COIL
(LIQUID LINE SHUT
OFF)
FRIDGE CIRCUIT 2
VALVE,COIL
(LIQUID LINE
SHUT OFF)
SD566250 ISSUE 35
D555750
PP90EHC THREE PHASE (200V 3 ~ 60Hz)
(N) 2 1 (L)
(N/O) 8 7 (COM)
(N/C) 9
CHILL
LIMIT LIGHT
(N/O) 4 6 (COM)
(N/C) 5
RELAY (R2)
B A
A1
15 (COM) (COM) 7 4 (N/O)
1 (N/C)
(N/C) 1
15 (COM) (COM) 9
6 (N/O)
(N/O) 4
3 (N/C)
A1
FANS 1 & 2
3.3A
(N/O) 14 13 (AUX)
COMP 1 HEATER
(N/C) 22 21 (AUX)
U (N/O) 2 1
COMP
V (N/O) 4 3
1
W (N/O) 6 5
COMP 1 CONTACTOR
(N/O) 14 13 (AUX)
COMP 2 HEATER
(N/C) 22 21 (AUX)
U (N/O) 2 1
COMP
V (N/O) 4 3
2
W (N/O) 6 5
COMP 2 CONTACTOR
ALL OTHER CONTACTS SHOWN IN DE-ENERGISED STATE BUT WITH REFRIGERATION CIRCUIT FULLY CHARGED
WHERE CONTACTS ARE MARKED (N/O) OR (N/C) ON CIRCUIT DIAGRAM ABOVE CONDITIONS APPLY
INTERLOCK
TERMINALS
(N/O) 4 7 (COM)
(N/C) 1
B A
RELAY (R3)
DELAY TIMER (1)
12 HOURS
A2 A1
18 (N/O) 15 (COM)
RELAY (R4)
16 (N/C)
B A
RELAY (R5)
1 (N/C)
(COM) 7
B A
4 (N/O)
3 (N/C)
(N/O) 4 7 (COM) (COM) 9
6 (N/O)
(N/C) 1
3 (N/C)
7 (COM) (COM) 9
6 (N/O)
1 (N/C)
(COM) 7
B A
4 (N/O)
RELAY (R6)
B A
RELAY (R7)
A1 A2
(N/O) 2 1 (N/C) 2
FAN
(N/O) 4 3 (N/C) 4
1
(N/O) 6 5 (N/C) 6
FAN 1
FAN 1 CIRCUIT BREAKER
CONTACTOR
TRIP / OFF = BREAK CONTACT
A1 A2
(N/O) 2 1 (N/C) 2
FAN
(N/O) 4 3 (N/C) 4
2
(N/O) 6 5 (N/C) 6
FAN 2
CONTACTOR FAN 2 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
(N/C) 2
(N/C) 4
(N/C) 6
COMP 1 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
(N/C) 2
(N/C) 4
(N/C) 6
COMP 2 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
12 (N/C)
FAULT
LIGHT
1
FAULT
LIGHT
2
1
3
5
1
3
5
1
3
5
1
3
5
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