Calorex Pro-Pac Series Owners & Installation Manual page 17

FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5 6 (N/C)
3 4 (N/C)
1 2 (N/C)
COMP CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5 6 (N/C)
3 4 (N/C)
1 2 (N/C)
DELAY TIMER 2
11
RELAY (R2)
14
(COM)
(N/C)
L
DEFROST
C
STAT (COM)
(BREAKS TO 'H' ON
TEMP FALLING)
(N/O)
4
OUT 1
6
(COM)
MAINS LIGHT
[RUN] (N/O) 2
[STANDBY] (N/C) 3
(N/O)
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
5 6 (N/C)
3 4 (N/C)
1 2 (N/C)
CONTROL CIRCUIT
L3 L2 L1
BREAKER
TRIP / OFF = BREAK CONTACT
SD566252 ISSUE 51
Pro-Pac 45EM THREE PHASE (220V 3~ 60Hz)
CONTACTOR
5 6 NO
3 4 NO
FAN
1 2 NO
A1 A2
CONTACTOR
(W1)
5 6 (N/O)
(V1)
3 4 (N/O)
COMP
1 2 (N/O) (U1)
A1 A2
21 22
COMP AUX
(N/C)
LIQUID LINE SHUT
OFF VALVE
13 14
COMP AUX
(N/O)
A2
(N/O)
A1
DELAY TIMER 1
12 HOUR
(COM) (N/O)
15 18
A1
A2
(N/O)
H
DEFROST
LIGHT
SMART CLOCK
FEED TERMINALS
7
8
(N/C)
5
10
SENSOR
DIG STAT 1 STAGE
11
MAKES 6 TO 4 ON TEMP FALLING
STANDBY
SWITCH
1 (COM)
FLOW OK LIGHT
(N/O) 4
(COM) 7
1 (N/C)
A B
RELAY (R1)
INTERLOCK
TERMINALS
H (N/O)
C (COM)
FAULT LIGHT
H (N/C)
C (COM)
TK
(N/C)
TK
(N/C)
96
(N/C)
95
44
(N/C)
43
14 (N/O)
L3
L2
L1 11 (COM)
PHASE
ROTATION RELAY
MCB SETTINGS
CONTROL
COMPRESSOR FAN
2.5A 46.8A 3.3A
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
17