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COMP
CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5
6 (N/C)
3
4 (N/C)
1
2 (N/C)
DELAY TIMER 1
(12 HOUR)
A1
A2
18 (N/O)
(COM) 15
16 (N/C)
[RUN] (N/O) 2
STANDBY SWITCH
(COM) 1
(N/O) 4
(COM) 7
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 BLOCK : ALARM
TRIP = BREAK CONTACT
COMPRESSOR MCB AUX BLOCK : ALARM
TRIP = BREAK CONTACT
12 13
INTERLOCK
TERMINALS
COMP
CONTACTOR
AUX BLOCK
63
64 (N/O)
5
6 (N/C)
3
4 (N/C)
1
2 (N/C)
FAN CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5
6 (N/C)
4 (N/C)
3
1
2 (N/C)
CONTROL CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
L3 L2 L1
SD566251 ISSUE 36
PROPAC30/45BHY THREE PHASE (400V 3 N~ 50Hz)
COMPRESSOR
CONTACTOR
5
6 (N/O)
3
4 (N/O)
1
2 (N/O)
21
22 (N/C)
RELAY (R2)
A1
A2
(N/O)
A1
14
11 (N/O)
A2
DELAY TIMER 2
9
SMART CLOCK FEED TERMINALS
OUT 1
MAKES 4 TO 6 ON TEMP FALLING
DIGITAL STAT (1 STAGE)
3 (N/C) [STANDBY]
WATER FLOW OK LIGHT
B
1 (N/C)
RELAY (R1)
A
WATER FLOW SWITCH
(N/O)
(N/C) L
H (N/O)
C (COM)
(N/O) L
H (N/C)
FAULT LIGHT
C (COM)
TK(B)
(NC)
FAN THERMAL CUT OUT
TK(B)
(N/C)
96 (N/C)
95
96 (N/C)
95
2 (N)
3 (N/O)
4 (N/C)
A1
A2
(COM) 1
5
6 (N/O)
3
4 (N/O)
1
2 (N/O)
FAN CONTACTOR
14 (N/O)
L3
12 (N/C)
L2
L1
11 (COM)
PHASE ROTATION
MAINS LIGHT
RELAY
SOFT START
IF FITTED
(W1)
(V1)
COMPRESSOR
(U1)
HEATER
PP30
PP45
8
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
10
BUT WITH REFRIGERATION CIRCUIT FULLY CHARGED
SENSOR
11
WHERE CONTACTS ARE MARKED (N/O) OR (N/C) ON CIRCUIT
DIAGRAM ABOVE CONDITIONS APPLY
LIQUID LINE
SHUT OFF VALVE
REVERSING VALVE
DEFROST LIGHT
FAN
NEUTRAL
MCB SETTINGS
CONTROL
COMPRESSOR
FAN
2.5A
22.9A
0.8A
2.5A
19.8A
1.1A
19
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