Calorex DH150 Manual Del Usuario Y De Instalación página 25

11.0 ELECTRICAL CIRCUIT DIAGRAMS. cont'
ELECTRICAL CIRCUIT DIAGRAM DH300BL THREE PHASE 400V 50Hz (~3N)
DESCRIPTION
VALUE
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 BUT WITH REFRIGERATION CIRCUIT FULLY CHARGED
WHERE CONTACTS ARE MARKED (N/O) OR (N/C) ON CIRCUIT DIAGRAM ABOVE CONDITIONS APPLY
L1 L2 L3
CONTROL MCB
5 6(N/C)
X
3 4(N/C)
X
1 2(N/C)
X
STANDBY SWITCH
COMPRESSOR
MCB AUX NC
FAN
MCB AUX NC
(BREAKS TO 'L' ON
PRESSURE RISING)
(BREAKS TO 'H' ON
PRESSURE FALLING)
SOFT START
THERMAL
O/LOAD
AND
LIGHT IF
FITTED
SD208050 ISSUE 44
MCB SETTING VALUES
COMPRESSOR FAN CONTROL
11.9 20
CONDENSATE PUMP/
CONTROL BOX MCB
1 2(N/C)
X
PHASE ROTATION
MAINS LIGHT
RELAY
11(COM)
14(N/O)
L1
L2
L3
(COM) 1
RUN (N/O) 2 3 (N/C) STANDBY
53
54
53
54
HP SWITCH
C(COM)
CONT
SELECT SWITCH
H(N/C)
L(N/O)
LP SWITCH
C(COM)
L(N/C)
H(N/O)
9
8
7
CLOSE ON
6
ABOVE HUMIDITY
SETTING
HUMIDISTAT
A2 A1
5 5 6(N/O)
6(N/C)
3 4(N/C) 3 4(N/O)
1 2(N/C) 1 2(N/O)
A2 A1
5 6(N/O)
4(N/O)
1
2(N/C) 1 2(N/O)
MCB's
CONTACTORS
PUMP
CONTROL
2.5 2.0
CONDENSATE PUMP/
CONTROL BOX
C
CYCLE
DEFROST
LIGHT
CLOSE ON
BELOW TEMP DELAY
SETTING DEFROST
TIMER
3 STAT
1 2 C L
(COM) (N/C)
AIR LIMIT
STAT
W
V
COMPRESSOR
U
N
L
FAN
10V
GND
IN
10V 1 2 3 0V
FAN SPEED CONTROLLER
N
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