CONTROL
MCB SETTINGS
COMPRESSOR
FAN
2.5A
1.1A
23.8A
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
COMP
CIRCUIT BREAKER
TRIP / OFF = BREAK CONTACT
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
(NC)
TB
TB
FAN THERMAL
CUT OUT
FAN MCB AUX BLOCK :
ALARM
TRIP = BREAK
CONTACT
COMPRESSOR MCB
AUX BLOCK : ALARM
TRIP = BREAK
CONTACT
TRIP / OFF = BREAK CONTACT
FAN CIRCUIT BREAKER
5
3
1
6 (N/C)
4 (N/C)
2 (N/C)
6 (N/C)
4 (N/C)
2 (N/C)
CONTROL CIRCUIT
BREAKER
5
3
1
TRIP / OFF = BREAK CONTACT
COMPRESSOR
CONTACTOR
L3 L2 L1
PHASE
ROTATION
RELAY
L3
L2
L1
14 (N/O)
63
64 (N/O)
COMP
CONTACTOR
AUX BLOCK
MAINS LIGHT
NEUTRAL
12 (N/C)
11 (COM)
(COM) 1
FAN CONTACTOR
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
FAN
4 (N/C)
3 (N/O)
DEFROST LIGHT
REVERSING VALVE
2
(N)
LIQUID LINE SHUT OFF VALVE
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 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
A1
A2
A
B
RELAY (R1)
WATER FLOW OK LIGHT
(COM) 1
3 (N/C) [STANDBY]
[RUN] (N/O) 2
STANDBY
SWITCH
(COM) 6
4 (N/O)
2 (N
)
1 (L)
OUT 1
MAKES 4 TO 6 ON TEMP FALLING
11
10
SENSOR
DIGITAL STAT (1 STAGE)
SMART CLOCK
FEED TERMINALS
8
9
5
3
1
6 (N/O)
4 (N/O)
2 (N/O)
COMP
14
11 (N/O)
DELAY TIMER 2
21
22 (N/C)
A1
A2
(W1)
(V1)
(U1)
HEATER
(N/O)
5 (N/C)
(N/O) 4
1
(N/C)
(COM) 7
DEFROST ST
AT
RELAY (R2)
(COM) 15
18 (N/O)
16 (N/C)
DELAY TIMER 1
(12 HOUR)
A1
A2
A1
A2
INTERL
OCK
TERMINALS
MAKES 1 T
O 3 ON
TEMP F
ALLING
Pro-Pac 45BMY THREE PHASE (400V 3 N~ 50Hz)
22
SD566252 ISSUE 51
PR0-PAC SYSTEM OWNER INSTALLATION MANUAL
