Calorex Pro-Pac Series Owners & Installation Manual page 15

ELECTRICAL CIRCUIT DIAGRAMS
SD566252 ISSUE 51
Pro-Pac 30BM THREE PHASE 400V 3 N~ 50Hz
FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
CONTACTOR
5 6 (N/C) 5
3 4 (N/C)
3
1 2 (N/C) 1
A1
COMP CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
CONTACTOR
5 6 (N/C) 5
3 4 (N/C)
3
1 2 (N/C)
1
DELAY TIMER 2
A1
21
COMP AUX
11 (N/O)
RELAY (R2)
14
(COM)
(COM)
(N/C)
(N/O)
L
H
DEFROST
LIGHT
DEFROST
C
STAT
(COM)
(BREAKS TO
'H' ON TEMP
FALLING)
(N/O) (N/C)
4 5
OUT
DIG STAT 1 STAGE
1
MAKES 6 TO 4 ON TEMP FALLING
6
(COM)
(N/O) (N/C)
(STANDBY) (RUN)
3 2
STANDBY (COM)
1
SWITCH
(N/O)
4
RELAY
(R1)
7
(COM)
WATER
FLOW
SWITCH
SOFT START
THERMAL
O/LOAD &
FAULT LIGHT
IF FITTED
STARTER OR
EXTERNAL
FLOW SWITCH
(N/C) L
LP SWITCH
(BREAKS TO H ON
PRESSURE FALLING)
(N/O) L
HP SWITCH
(BREAKS TO L ON
PRESSURE RISING)
FAN THERMAL CUT OUT
COMPRESSOR
MOTOR
PROTECTOR
FAN MCB AUX BLOCK : ALARM
TRIP = BREAK CONTACT
COMPRESSOR MCB
AUX BLOCK : ALARM
TRIP = BREAK CONTACT
6 NO
5 L3
3 4 NO L2
1 2 NO L1
CONTROL PHASE
L3 L2 L1
CIRCUIT BREAKER ROTATION RELAY
6 (N/O)
4 (N/O)
FAN
2 (N/O)
A2
(W1)
6 (N/O)
4 (N/O) (V1)
COMP
2 (N/O) (U1)
A2
22
HEATER
(NC)
A2
A1
DELAY TIMER 1
12 HOUR
15 18 (N/O)
A1 A2
9 8
SMART CLOCK
FEED TERMINALS
10 11
FLOW OK LIGHT
B
A
(N/O)
6
7
10
11
H (N/O)
FAULT
C (COM)
LIGHT
H (N/C)
C (COM)
TB
(N/C)
TB
(N/C)
96
(N/C)
95
96
(N/C)
95
MAINS LIGHT
14 NO
11 COM
NEUTRAL
MCB SETTINGS
CONTROL COMPRESSOR FAN
2.5A 22.9A 0.8A
15