Calorex Pro-Pac 45 - Page 15

ELECTRICAL CIRCUIT DIAGRAMS
MCB SETTINGS
CONTROL
2.5A
COMPRESSOR FAN
0.8A22.9A
6 (N/O)
4 (N/O)
2 (N/O)
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
5
3
1
6 NO
4 NO
2 NO
5
3
1
(COM)
(N/O)
(N/O)(COM)
(N/O)
(COM)
(N/C)
5
(COM)
(N/O) (N/C)
(N/O)
(N/O)
(COM)
H (N/O)
(N/O) L H (N/C)
12 NC
A2
A2
A1
A1
2221
(N/C)
(N/C)
TB
TB
FAN THERMAL CUT OUT
FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
TRIP / OFF = BREAK CONTACT
COMP CIRCUIT BREAKER
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
(N/C)
(COM)
C
L
(N/O)
H
DEFROST
STAT
(BREAKS TO
'H' ON TEMP
FALLING)
FAN MCB AUX BLOCK : ALARM
TRIP = BREAK CONTACT
COMPRESSOR MCB
AUX BLOCK : ALARM
TRIP = BREAK CONTACT
(N/C)
(N/C)
95
96
95
96
CONTROL
MAINS LIGHT
L3 L2
L1
CIRCUIT BREAKER
L1
L2
L3
11 COM
14 NO
PHASE
ROTATION RELAY
STARTER OR
EXTERNAL
FLOW SWITCH
INTERLOCK TERMINALS
SOFT START
THERMAL
O/LOAD &
FAULT LIGHT
IF FITTED
HP SWITCH
LP SWITCH
(BREAKS TO H ON
PRESSURE FALLING)
C (COM)
C (COM)
(N/C) L
FAULT
LIGHT
(RUN)
1
23
(STANDBY)
STANDBY
SWITCH
1 (L)
10 11
6
SENSOR
4
OUT
1
DIG STAT 1 STAGE
MAKES 6 TO 4 ON TEMP FALLING
9
8
2 (N)
SMART CLOCK
FEED TERMINALS
COMPRESSOR
MOTOR
PROTECTOR
A
B
WATER
FLOW
SWITCH
RELAY
(R1)
7
4
FLOW OK LIGHT
A1
A2
RELAY (R2)
14
11
DEFROST
LIGHT
FAN
CONTACTOR
COMP
(U1)
(V1)
(W1)
HEATER
(NC)
COMP AUX
CONTACTOR
DELAY TIMER 2
12 HOUR
DELAY TIMER 1
A1
A2
15 18
(BREAKS TO L ON
PRESSURE RISING)
NEUTRAL
7
6
11
10
Pro-Pac 30BM THREE PHASE 400V 3 N~ 50Hz
15
SD566252 ISSUE 51