Calorex Pro-Pac 45 - Page 17

CONTROL
2.5A
FAN
3.3A
MCB SETTINGS
COMPRESSOR
46.8A
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
FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
COMP CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
(N/C)
(COM)
C
L
(N/O)
H
(BREAKS TO 'H' ON
TEMP FALLING)
DEFROST
STAT
FAN MCB AUX BLOCK :
ALARM
TRIP = BREAK CONTACT
COMPRESSOR MCB
AUX BLOCK : ALARM
TRIP = BREAK CONTACT
6 (N/C)
4 (N/C)
2 (N/C)
CONTROL CIRCUIT
BREAKER
5
3
1
TRIP / OFF = BREAK CONTACT
LIQUID LINE SHUT
OFF VALVE
6 NO
4 NO
2 NO
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
5
3
1
(COM)
(N/O)
(N/O) (COM)
(N/O)
(COM)
(N/C)
5
(N/C)
(N/C)
H (N/O)
(N/O) L H (N/C)
12 (N/C)
A2
A2
A1
A1
2221
(N/C)
(N/C)
TK
TK
FAN THERMAL
CUT OUT
95
96
L3 L2
L1
L1
L2
L3
11 (COM)
14 (N/O)
PHASE
ROTATION RELAY
SWITCH
STARTER
OR
INTERLOCK
TERMINALS
FLOW
THERMAL
O/LOAD &
LIGHT IF
FITTED
FAULT
EXTERNAL
SOFT START
HP SWITCH
LP SWITCH
(BREAKS TO H ON
PRESSURE FALLING)
43
44
C (COM)
C (COM)
(N/C) L
FAULT LIGHT
1 (L)
10
11
6
4
OUT 1
DIG STAT 1 STAGE
MAKES 6 TO 4 ON TEMP FALLING
8
7
SMART CLOCK
2 (N)
FEED TERMINALS
COMPRESSOR
MOTOR
PROTECTOR
A1
A2
RELAY (R2)
14
11
DEFROST
LIGHT
FAN
CONTACTOR
COMP
(U1)
(V1)
(W1)
HEATER
(N/C)
COMP AUX
CONTACTOR
DELAY TIMER 2
12 HOUR
DELAY TIMER 1
A1
A2
15 18
(BREAKS TO L ON
PRESSURE RISING)
(N/O)
WATER FLOW
SWITCH
A B
RELAY (R1)
FLOW OK LIGHT
1 (COM)
[STANDBY] (N/C) 3
[RUN] (N/O) 2
STANDBY
SWITCH
(N/O) 4
1 (N/C)
(COM) 7
1413
(N/O)
COMP AUX
MAINS LIGHT
SENSOR
Pro-Pac 45EM THREE PHASE (220V 3~ 60Hz)
17
SD566252 ISSUE 51