Calorex Pro-Pac Series Owners & Installation Manual page 20

PR0-PAC SYSTEM OWNER INSTALLATION MANUAL
PP(T)45EHC THREE PHASE (200V 3~ 60Hz)
COMP CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5 6 (N/C)
3 4 (N/C)
1 2 (N/C)
DELAY TIMER T1 (12 HOUR)
A1 A2
18 (N/O)
(COM) 15
16 (N/C)
H (N/O)
(N/C) L
DEFROST STAT
(BREAKS TO 'H' ON
(COM) C
TEMP FALLING)
TEMP OK
LIGHT
MAINS
LIGHT
SOFT START THERMAL O/LOAD &
FAULT LAMP IF FITTED
STARTER OR EXTERNAL FLOW SWITCH
LP SWITCH
(BREAKS TO 'H' ON PRESSURE FALLING)
HP SWITCH
(BREAKS TO 'L' ON PRESSURE RISING)
COMPRESSOR MOTOR PROTECTOR
FAN MCB AUX BLK : ALARM
TRIP = BREAK CONTACT
COMPRESSOR MCB AUX BLK : ALARM
TRIP = BREAK CONTACT
5 6 (N/C) L3
3 4 (N/C) L2
L1
1 2 (N/C)
CONTROL CIRCUIT
PHASE ROTATION RELAY
L3 L2 L1 BREAKER
TRIP / OFF = BREAK CONTACT
20
CONTACTOR
5 6 (N/O)
3 4 (N/O)
1 2 (N/O)
21 22 (N/C)
13 14 (N/0)
LIQUID LINE SHUT OFF VALVE
RELAY (R2)
A B
(N/O)
(N/O) 4 7 (COM) A1 A2
DELAY TIMER T2
DEFROST LIGHT (6 MINS)
FAN CIRCUIT BREAKER
CONTACTOR
TRIP / OFF = BREAK CONTACT
5 6 (N/C) 5 6 (N/O)
3 4 (N/C) 3 4 (N/O)
1 2 (N/C) 1 2 (N/O)
A1 A2
B
RELAY (R1)
A
HEAT LIGHT
(N/C) L H (N/O)
CHILL LIMIT SWITCH
(BREAKS TO 'H' ON TEMP FALLING)
C (COM)
DIGITAL STAT (2 STAGE)
MAKES 4 TO 6 ON TEMP FALLING
OUT 1 OUT 2
MAKES 8 TO 7 ON TEMP RISING
[RUN] (N/O) 2
1 (COM) STANDBY SWITCH
(N/O) 4
[STANDBY] (N/C) 3
(N/O) (COM) 7
1 (N/C)
A B
WATER FLOW SWITCH
RELAY (R3)
(N/C) L H (N/O)
C (COM)
(N/O) L H (N/C)
C (COM)
TK
(N/C)
FAN THERMAL CUT OUT
TK
(N/C)
96 (N/C)
95
43 (N/C)
44
12 (N/C)
11 (COM)
(W)
(V)
COMP
(U)
HEATER
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
FAN
CHILL LIGHT
REVERSING VALVE
CHILL LIMIT
LIGHT
10
SENSOR
11
FLOW OK LIGHT
FAULT LIGHT
MCB SETTINGS
CONTROL COMPRESSOR FAN
2A 38.9A 3.30A
SD566250 ISSUE 35