Calorex Pro-Pac PPT45EHC - Page 18

CONTROL
2A
MCB SETTINGS
COMPRESSOR FAN
1.1A28.4A
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
COMP CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
TRIP / OFF = BREAK CONTACT
FAN CIRCUIT BREAKER
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
(BREAKS TO
'H' ON TEMP
FALLING)
DEFROST STAT
(BREAKS TO 'H' ON TEMP FALLING)
44
43 (N/C)
95
96 (N/C)
FAN MCB AUX BLK : ALARM
TRIP = BREAK CONTACT
COMPRESSOR MCB AUX BLK : ALARM
TRIP = BREAK CONTACT
6 (N/C)
4 (N/C)
2 (N/C)
CONTROL CIRCUIT
BREAKER
5
3
1
TRIP / OFF = BREAK CONTACT
L3 L2
L1
PHASE ROTATION RELAY
L3
L2
L1
14 (N/O)
MAINS LIGHT
12 (N/C)
11 (COM)
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
FAN
(N/C)
C (COM)
H (N/C)
(N/O) L
C (COM)
H (N/O)
(N/C) L
FAULT
LIGHT
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)
FLOW OK LIGHT
1 (COM)
[STANDBY] (N/C) 3
[RUN] (N/O) 2
STANDBY
SWITCH
(COM) 6
4 (N/O)
11
10
SENSOR
DIGITAL STAT (2 STAGE)
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
COMPRESSOR
(N/O) 4 7 (COM)
DELAY TIMER T2
(6 MINS)
21
22 (N/C)
A1
A2
CONTACTOR
(W)
(V)
(U)
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 T1 (12 HOUR)
A1 A2
(COM) 7
8 (N/O)
9 (N/C)
2 (N)
C (COM)
H (N/O)
(N/C) L
TEMP OK
LIGHT
OUT 1 OUT 2
CHILL
LIMIT
LIGHT
A
B
RELAY
(R1)
CONTACTOR
63
64 (N/0)
BA
A1
A2
CHILL LIGHT
REVERSING
VALVE
HEAT LIGHT
CHILL LIMIT SWITCH
LIQUID LINE SHUT OFF VALVE
MAKES 4 TO 6 ON TEMP FALLING
MAKES 8 TO 7 ON TEMP RISING
DEFROST
LIGHT
(COM) C
(N/C) L
H (N/O)
1 (L)
INTERLOCK
TERMINALS
(N/C) 1
7 (COM)
(N/O) 4
(N/C) 3
9 (COM)
(N/O) 6
NC
TB
TB
FAN THERMAL CUT OUT
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
PP(T)45BHC THREE PHASE (400V 3N~ 50Hz)
18
SD566250 ISSUE 35
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL