Electrical Circuit Diagrams - Calorex Pro-Pac Series Owners & Installation Manual

ELECTRICAL CIRCUIT DIAGRAMS

DELAY TIMER 1 (12 HOUR)
A1 A2
18 (N/O)
(COM) 15
16 (N/C)
(N/C) L
DEFROST STAT
(BREAKS TO H ON
TEMP FALLING)
TEMP OK
LIGHT
STANDBY SWITCH
SOFT START THERMAL O/LOAD &
FAULT LAMP IF FITTED
(BREAKS TO 'H' ON PRESSURE FALLING)
(BREAKS TO 'L' ON PRESSURE RISING)
COMPRESSOR MCB AUX BLK : ALARM
5
3
1
CONTROL CIRCUT BREAKER
TRIP / OFF = BREAK CONTACT
L3 L2 L1
SD566250 ISSUE 35
PP(T)30BHC THREE PHASE (400V 3N~ 50Hz)
5 6 (N/C) 5
3 4 (N/C) 3
1 2 (N/C) 1
FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
21
COMPRESSOR CONTACTOR AUX BLOCK 63
RELAY (R2)
A B
4
(N/O)
(COM)
(N/O) A1
7
1
DELAY COMPRESSOR
(N/C)
H TIMER 2 CONTACTOR
DEFROST
(N/O)
(6 MINS)
C
LIGHT
(COM)
FAN CONTACTOR
5 6 (N/C) 5
3 4 (N/C) 3
1 2 (N/C) 1
FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT A1
B
A
HEAT
LIGHT
(N/C) L
CHILL LIMIT SWITCH
(BREAKS TO H ON
TEMP/PRESSURE
FALLING)
DIGITAL STAT (2 STAGE)
MAKES 4 TO 6 ON TEMP FALLING
OUT 1
MAKES 8 TO 7 ON TEMP RISING
[RUN] (N/O) 2 3 (N/C) [STANDBY]
(COM) 1
B
(N/O) 4 1 (N/C)
RELAY (R3)
(COM) 7
A
WATER FLOW SWITCH
(N/O)
STARTER OR
EXTERNAL FLOW
SWITCH
LP SWITCH (N/C) L H (N/O)
C (COM)
HP SWITCH
(N/O) L H (N/C)
C (COM)
FAN THERMAL CUT
TB (N/C)
OUT
TB
COMPRESSOR MOTOR
(N/C)
PROTECTOR
96 (N/C)
FAN MCB AUX BLK : ALARM
TRIP = BREAK CONTACT 95
96 (N/C)
95
TRIP = BREAK CONTACT
6 (N/C) L3
12 (N/C)
4 (N/C) L2
2 (N/C) L1 11 (COM)
PHASE ROTATION
RELAY
6 (N/O) (W)
4 (N/O) (V)
COMP
2 (N/O) (U)
22 (N/C)
HEATER
64 (N/0)
MCB CONTACTS / MCB ALARM CONTACTS / MCB AUX CONTACTS SHOWN
WITH CIRCUIT BREAKER MANUALLY SWITCHED TO THE ON CONDITION
LIQUID LINE SHUT OFF VALVE
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
A2
ABOVE CONDITIONS APPLY
6 (N/O)
4 (N/O)
FAN
2 (N/O)
A2
CHILL LIGHT
RELAY (R1)
REVERSING VALVE
CHILL
LIMIT
H (N/O)
LIGHT
C (COM)
10
OUT 2
11 SENSOR
WATER FLOW OK LIGHT
FAULT
LIGHT
MAINS LIGHT
NEUTRAL
MCB SETTINGS
CONTROL COMPRESSOR FAN
2.5A 23.8A 0.8A
17