Calorex Pro-Pac PPT45EHC - Page 24

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.
NEUTRAL
COMP
3
COMP
4
COMP
2
COMP
1
COMP 2 HEATER
COMP 1 HEATER
FAULT LIGHT
MAINS LIGHT
FRIDGE CIRCUIT 1
REVERSING VALVE
FRIDGE CIRCUIT 2
REVERSING VALVE
FRIDGE CCT 1
VALVE,COIL
(LIQUID LINE SHUT OFF)
FRIDGE CCT 2
VALVE,COIL
(LIQUID LINE SHUT OFF)
COMP 2 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
COMP 1 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
COMP 4 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
COMP 3 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
COMP 2
CONTACTOR
COMP 1
CONTACTOR
COMP 4
CONTACTOR
COMP 3
CONTACTOR
FAN
1
FAN
2
FAN 2
CONTACTOR
FAN 1
CONTACTOR
FAN 2 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
FAN 1 CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
STARTER OR
EXTERNAL FLOW SWITCH
INTERLOCK
TERMINALS
SOFT START THERMAL
O/LOAD & FAULT LIGHT IF FITTED
FAN 1 THERMAL
CUT OUT
FAN 2 THERMAL
CUT OUT
FAN 2 MCB AUX BLOCK
ALARM TRIP =
BREAK CONTACT
DEFROST
LIGHT
FRIDGE
CIRCUIT 2
DEFROST
STAT
(BREAKS TO 'H' ON
TEMP FALLING)
FRIDGE
CIRCUIT 1
DEFROST STAT
(BREAKS TO 'H'
ON TEMP FALLING)
COMP 1 MOTOR
PROTECTOR
LP SWITCH
(BREAKS TO H ON
PRESSURE FALLING)
HP SWITCH
(BREAKS TO L ON
PRESSURE RISING)
1
FAULT LIGHT
COMP 2 MOTOR
PROTECTOR
COMP 2 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
COMP 1 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
FAULT LIGHT
2
COMP 3 MOTOR
PROTECTOR
COMP 4 MOTOR
PROTECTOR
LP SWITCH
(BREAKS TO H ON
PRESSURE FALLING)
HP SWITCH
(BREAKS TO L ON
PRESSURE RISING)
COMP 3 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
COMP 4 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
DELAY
TIMER 5
(10 SEC)
DELAYTIMER 3
(7 MINS)
DELAY TIMER 1
(12 HOURS)
CONTROL
CIRCUIT BREAKER
PHASE
ROTATION
RELAY
WATER FLOW SWITCH
RELAY (R5)
RELAY (R7)
RELAY
(R6)
RELAY (R4)
RELAY (R2)
RELAY (R3)
RELAY (R1)
DELAY
TIMER 2
(6 MINS)
STANDBY
SWITCH
SENSOR
FLOW OK LIGHT
CHILL LIGHT
HEAT LIGHT
TEMP
OK
LIGHT
CHILL LIMIT
LIGHT
DIGITAL STAT
2 STAGE
MAKES 7 TO 8 ON TEMP RISING
MAKES 4 TO 6 ON TEMP FALLING
COMP 3 MCB AUX
BLOCK
TRIP / OFF = BREAK CONTACT
COMP 4 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
COMP 1 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
DELAY
TIMER 4
(10 SEC)
CHILL LIMIT
PRESSURE SWITCHES
(BREAK TO H ON TEMP FALLING)
FRIDGE CIRCUIT 2
FRIDGE CIRCUIT 1
OUT 1OUT 2
L1
L2 L3
14 (N/O)
96
(N/C) 95
96
(N/C) 95
TK
TK
(N/C) TK
(N/C) TK
(COM) 1
RUN (N/O) 2
3 (N/C)
STANDBY
6 (COM)
1 (L)(N) 2
(N/O) 4
(N/C) 5
5
TRIP / OFF = BREAK CONTACT
1 3
2 (N/C) 4 (N/C) 6 (N/C)
L1 L2 L3
11 (COM)
12
(N/C)
AB
4 (N/O)
1 (N/C)
6 (N/O)
3 (N/C)
10 11
(COM) 7
(COM)
9
(COM) C (N/O) H L (N/C)
AB
(N/C) 1
(N/O) 4 7 (COM)
B
B
1 (N/C)
4 (N/O)
(COM) 7
3 (N/C)
6 (N/O)
(COM) 97 (COM)
(N/O) 4
(N/C) 1
(COM) C (N/O) H L (N/C)
A
A
1 (N/C)
(COM) 7 4 (N/O)
34
(N/C) 33
15 (COM)
18 (N/O)
16 (N/C)
A2A1
A1A2
A1 A2 (COM) 9
34 33 (N/C)
3 (N/C)
6 (N/O)
15 (COM)
16 (N/C)
18 (N/O)
A1A2
95
(N/C) 96
(COM) C (N/O) L H (N/C)
(COM) C (N/O) H L (N/C)
AB 15 (COM)
18 (N/O)
16 (N/C)
A1A2
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
A2A1
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
A2A1
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
21 (AUX)(N/C) 22
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
21 (AUX)(N/C) 22
7 6
95 96 (N/C)
C (COM)
L (N/O)
C (COM)
H (N/O)
H (N/C)
L (N/C)
U
V
W
U
V
W
63 (AUX)(N/O) 64
63 (AUX)(N/O) 64
BREAKS ON WATER
FLOW RATE FALLING
(N/C) 1
(N/O) 4 7 (COM)
AB
7 (COM)(N/O) 8
(N/C) 9
(COM) C (N/O) H
L (N/C)
(COM) C (N/O) H L (N/C)
6 (N/O)
9 (COM)
3 (N/C)
AB
(N/C)
4 (N/O)
7 (COM)
1 (N/C)
(N/C) (N/C)
TEMP OK LIGHT
9 8
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
21 (AUX)(N/C) 22
1
3
5
(N/C) 2
(N/C) 4
(N/C) 6
1
3
5
(N/O) 2
(N/O) 4
(N/O) 6
21 (AUX)(N/C) 22
U
V
W
U
V
W
63 (AUX)(N/O) 64
63 (AUX)(N/O) 64
A2A1
(N/O)
A2A1
COMPRESSOR 4
CONTACTOR
(N/O)
34
(N/C) 33
34 33 (N/C)
95 96 (N/C)
95
(N/C) 96
(N/C)(N/C)
CONTROL
2.5A
MCB SETTINGS
COMPRESSORS 1 TO 4
FANS 1 AND 2
2.8A23.8A
COMP 3 HEATER
COMP 4 HEATER
FAN 1 MCB AUX BLOCK
ALARM TRIP =
BREAK CONTACT
FRIDGE CIRCUIT 1
FRIDGE CIRCUIT 2
COMP 2 MCB AUX BLOCK
TRIP / OFF = BREAK CONTACT
COMPRESSOR 3
CONTACTOR
COMPRESSOR 1
CONTACTOR
COMPRESSOR 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
PP140(T)BHC THREE PHASE (400V 3 N~ 50Hz)
24
SD566250 ISSUE 35
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL