Calorex Pro-Pac PPT45EHC - Electrical Circuit Diagrams; Wiring Schematics

ELECTRICAL CIRCUIT DIAGRAMS
C
(COM)
H
(N/O)(N/C) L
CONTROL
2.5A
MCB SETTINGS
COMPRESSOR FAN
0.8A23.8A
MCB CONTACTS / MCB ALARM CONTACTS / MCB AUX CONTACTS SHOWN
WITH CIRCUIT BREAKER MANUALLY SWITCHED TO THE ON CONDITION
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
L3 L2 L1
PHASE ROTATION
RELAY
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
L3
L2
L1
14 (N/O)
MAINS LIGHT
NEUTRAL
12 (N/C)
11 (COM)
FAN CIRCUIT BREAKER
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
FAN
95
96 (N/C)
95
96 (N/C)
(N/C)
C (COM)
H (N/C)(N/O) L
C (COM)
H (N/O)
(N/C) L
FAULT
LIGHT
COMPRESSOR MCB AUX BLK : ALARM
FAN MCB AUX BLK : ALARM
COMPRESSOR MOTOR
PROTECTOR
HP SWITCH
(BREAKS TO 'L' ON PRESSURE RISING)
LP SWITCH
(BREAKS TO 'H' ON PRESSURE FALLING)
STARTER OR
EXTERNAL FLOW
SWITCH
SOFT START THERMAL O/LOAD &
FAULT LAMP IF FITTED
(N/O)
WATER FLOW SWITCH
A
B
RELAY (R3)
WATER FLOW OK LIGHT
(COM) 1
3 (N/C) [STANDBY]
[RUN] (N/O) 2
STANDBY SWITCH
(COM) 6
4 (N/O)
MAKES 4 TO 6 ON TEMP FALLING
11
10
SENSOR
DIGITAL STAT (2 STAGE)
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
COMP
(COM)
7
4
(N/O)
21 22 (N/C)
A1 A2
(W)
(V)
(U)
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
HEATER
(N/O)
5 (N/C)
(N/O) 4 1 (N/C)
(COM) 7
RELAY (R2)
(COM) 15
18 (N/O)
16 (N/C)
DELAY TIMER 1 (12 HOUR)
A1 A2
(COM) 7
8 (N/O)
9 (N/C) 2
C (COM)
H (N/O)
(N/C) L
TEMP OK
LIGHT
OUT 1 OUT 2
CHILL
LIMIT
LIGHT
A
B
RELAY (R1)
FAN CONTACTOR
63 64 (N/0)
BA
A1
A2
(N/C) 1
7 (COM)
(N/O) 4 (N/C) 3
9 (COM)
(N/O) 6
CHILL LIGHT
REVERSING VALVE
HEAT
LIGHT
CHILL LIMIT SWITCH
(BREAKS TO H ON
TEMP/PRESSURE
FALLING)
LIQUID LINE SHUT OFF VALVE
MAKES 8 TO 7 ON TEMP RISING
DEFROST
LIGHT
DEFROST STAT
1
INTERLOCK
TERMINALS
1
(N/C)
CONTROL CIRCUT BREAKER
TRIP / OFF = BREAK CONTACT
TRIP = BREAK CONTACT
TRIP = BREAK CONTACT
TRIP / OFF = BREAK CONTACT
TRIP / OFF = BREAK CONTACT
FAN CIRCUIT BREAKER
COMPRESSOR CONTACTOR AUX BLOCK
TB
TB (N/C)
FAN THERMAL CUT
OUT
(BREAKS TO H ON
TEMP FALLING)
COMPRESSOR
CONTACTOR
DELAY
TIMER 2
(6 MINS)
PP(T)30BHC THREE PHASE (400V 3N~ 50Hz)
17
SD566250 ISSUE 35