Calorex Pro-Pac 45 - Page 26

MCB CONTACTS / MCB ALARM CONTACTS / MCB AUX CONTACTS SHOWN WITH CIRCUIT BREAKER MANUALLY SWITCHED TO THE ON CONDITION
WATER FLOW SWITCH CONTACTS SHOWN WITH WATER FLOW AT MAXIMUM RATE 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
NOTE
CONTROL
2.5A
MCB SETTINGS
COMPRESSORS FANS
36.8A 2.7A
(1 STAGE)
DELAY TIMER (2)
(6 MINS)
(N/C) 44
OUT 1
STARTER OR
FAULT LIGHT
MAINS
LIGHT
L1 L2 L3
N
95
(N/C) 96
95
(N/C) 96
FAN 1 MCB AUX
BLOCK:ALARM
TRIP = BREAK CONTACT
TK
FAN 1
THERMAL CUT OUT
FAN 2
THERMAL CUT OUT
TK
FAN 2 MCB AUX
BLOCK:ALARM
TRIP = BREAK CONTACT
(N/C) TK
(N/C) TK
EXTERNAL FLOW SWITCH
SOFT START
THERMAL O/LOAD
& FAULT LIGHT IF FITTED
(COM) 1
RUN (N/O) 2
3 (N/C) STANDBY
STANDBY SWITCH
6 (COM)
1 (L)(N) 2
(N/O) 4
(N/C) 5
DIGITAL STAT
9 (L)(N) 8
SMART CLOCK
FEED TERMINALS
SENSOR
10 11
3 (N/C)
6 (N/O)
15 (COM)
18 (N/O)
16 (N/C)
A1A2
COMPRESSOR 1
CONTACTOR
(COM) 7
A1A2
AB
RELAY (R1)
15 (COM)
18 (N/O)
16 (N/C)
A1A2
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
FAN
1
DELAY TIMER (1)
(12 HRS)
FAN 1 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
FAN 1 CONTACTOR
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
FAN
2
FAN 2 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
FAN 2 CONTACTOR
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
COMP
1
COMPRESSOR 1 CIRCUIT BREAKER
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
COMPRESSOR 1 CONTACTOR
21 (AUX)(N/C) 22
COMPRESSOR 1 HEATER
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
COMP
2
COMPRESSOR 2 CIRCUIT BREAKER
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
COMPRESSOR 2 CONTACTOR
21 (AUX)(N/C) 22
COMPRESSOR 2 HEATER
10 11
7 6
FAULT LIGHT
FRIDGE CCT 1
1
43
(N/C) 44
COMP 1 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
FRIDGE CCT 1 :
HP SWITCH
BREAKS TO 'L' ON
(COM) C
(N/O) H
L
(N/C)
INTERLOCK
TERMINALS
L1
L2
L3
L1
L2
L3
33 34 (N/C)
COMP 1 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
(COM)
C
(N/O) L
H
(N/C)
PRESSURE RISING
FRIDGE CCT 1 :
LP SWITCH
BREAKS TO 'H' ON
PRESSURE FALLING
1 (N/C)
4 (N/O)
15 (COM)
18 (N/O)
16 (N/C)
A1A2
COMPRESSOR 2
CONTACTOR
A1A2
FAULT LIGHT
FRIDGE CCT 2
2
43
COMP 2 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
FRIDGE CCT 2 :
HP SWITCH
BREAKS TO 'L' ON
(COM)
C
(N/O) H
L
(N/C) 33 34 (N/C)
COMP 2 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
(COM) C
(N/O) L
H
(N/C)
PRESSURE RISING
FRIDGE CCT 2 :
LP SWITCH
BREAKS TO 'H' ON
PRESSURE FALLING
(COM) 9
RELAY (R2)
AB
(COM) 9
6
(N/O)
3 (N/C)
53 (AUX)(N/O) 54
COMP 1
CONTACTOR
2 (N/C)
5 (N/O)
(COM) 81 (COM)
3 (N/O)
4 (N/C)
2 (N)
A1A2
DELAY TIMER (5)
(3 SECS)
15 (COM)
(N/O) 18
(N/C) 16
RELAY (R3)
AB
DEFROST STAT FRIDGE CCT 1 MAKES 1 TO 3 ON TEMP FALLING
53 (AUX)(N/O) 54
COMP 2
CONTACTOR
2 (N/C)
5 (N/O) (COM) 81 (COM)
3 (N/O)
4 (N/C)
2
(N)
DEFROST STAT FRIDGE CCT 2 MAKES 1 TO 3
ON TEMP FALLING
A1A2
DELAY TIMER (6)
(3 SECS)
15 (COM)
(N/O) 18
(N/C) 16
RELAY (R4)
AB
9 (COM)
(N/O) 6
(N/C) 3
9 (COM)
(N/O) 6
(N/C) 3
A1A2
DELAY TIMER (4)
(30 SECS)
15 (COM) (N/O) 18
(N/C) 16
63 (AUX)(N/O) 64
COMP 1 CONTACTOR
A1A2
FAN 1
CONTACTOR
63 (AUX)(N/O) 64
COMP 2 CONTACTOR
A1A2
FAN 2 CONTACTOR
7 (COM)
(N/O) 4
(N/C) 1
7 (COM)
(N/O) 4
(N/C) 1
DEFROST
LIGHT
FRIDGE CCT 1 REVERSING VALVE
FRIDGE CCT 2 REVERSING VALVE
5
1
3
(N/C) 2
(N/C) 4
(N/C) 6
12
(N/C)
L1
L2
L3
CONTROL CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
(COM) 11
(N/O) 14
MAKES 4 TO 6 ON TEMP FALLING
PHASE ROTATION
RELAY
TRIP / OFF = BREAK CONTACT
TRIP / OFF = BREAK CONTACT
FRIDGE CCT 1 VALVE COIL
(LIQUID LINE SHUT OFF)
DELAY TIMER (3)
(7 MINS)
13 (AUX)(N/O) 14
FRIDGE CCT 2 VALVE COIL
(LIQUID LINE SHUT OFF)
13
(AUX)(N/O) 14
7 (COM)
(N/O) 4
(N/C) 1
(N/C)
WATER FLOW SWITCH
BREAKS ON WATER
FLOW RATE FALLING
RELAY (R5)
AB
FLOW OK LIGHT
Pro-Pac 140BMY THREE PHASE (400V 3 N~ 50Hz)
26
SD566252 ISSUE 51
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL