Calorex Pro-Pac Series Owners & Installation Manual page 21

PP(T)70EHC THREE PHASE (200V 3~ 60Hz)
COMP 2
CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5 6 (N/C)
3 4 (N/C)
1 2 (N/C)
COMP 1
CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5 6 (N/C)
3 4 (N/C)
1 2 (N/C)
18 (N/O)
(COM) 15
16 (N/C)
A1 A2
DELAY TIMER T2 (6 MINS)
DELAY TIMER T1 (12 HOUR)
A1 A2
18 (N/O)
(COM) 15
16 (N/C)
(N/O) 11
DEFROST STAT
DEFROST LIGHT
H (N/O)
(N/C) L
(BREAKS TO
'H' ON
(COM) C
TEMP FALLING)
TEMP OK
LIGHT
OUT 1
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)
FAN THERMAL
CUT OUT
COMPRESSOR 2
MOTOR PROTECTOR
COMPRESSOR 1
MOTOR PROTECTOR
FAN MCB AUX BLOCK :
ALARM TRIP = BREAK
CONTACT
COMPRESSOR 1 MCB
AUX BLK : ALARM TRIP
= BREAK CONTACT
COMPRESSOR 2 MCB
AUX BLOCK : ALARM
TRIP = BREAK
CONTACT
CONTROL
CIRCUIT
BREAKER
5 6 (N/C) L3
3 4 (N/C) L2
1 2 (N/C) L1
PHASE
TRIP / OFF =
L3 L2 L1
ROTATION RELAY
BREAK CONTACT
SD566250 ISSUE 35
D571350
CONTACTOR (COMP 2)
5 6 (N/O) (W)
3 4 (N/O) (V)
1 2 (N/O) (U)
21 22 (N/C)
A1 A2
DELAY TIMER T3
CONTACTOR (COMP 1)
(N/O)
(10 SECS)
5 6 (N/O) (W)
3 4 (N/O) (V)
1 2 (N/O) (U)
21 22 (N/C)
A1 A2
RELAY (R2)
A1 A2
COMP 1 MCB AUX COMP 2 MCB AUX
14 (COM) 54 53 (N/O) 54
FAN CIRCUIT BREAKER
CONTACTOR (FAN)
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)
C (COM)
CHILL LIMIT SWITCH
(BREAKS TO 'H' ON TEMP FALLING)
DIGITAL STAT (2 STAGE)
MAKES 4 TO 6 ON TEMP FALLING
OUT 2
MAKES 8 TO 7 ON TEMP RISING
(N/C) L H (N/O)
C (COM)
STANDBY SWITCH
(N/O) L H (N/C)
C (COM)
TK
(NC)
TK
(N/C)
(N/C)
96 (N/C)
95
44 (N/C)
43 FAULT LIGHT
43 (N/C)
44
COMP 1 CONT AUX
13 14 (N/O)
COMP 2 CONT AUX
12 (N/C)
13 14 (N/O)
11 (COM)
COMP
2
COMP
1 MCB SETTINGS
CONTROL COMPRESSOR
2.5A
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.
53 (N/O)
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
B
RELAY (R3)
A
WATER FLOW
SWITCH (N/O)
LIQUID LINE
SHUT OFF VALVE
FAN
32.8A 4.5A
21