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RL4
10
ON / OFF
SWITCH
F1
L1
MAINS
F2
POWER
N
INLET
N
OPERATING
TIME METER
11
12
13
14
F3
–
12 V
M
M
N
N
FAN
COMPRESSOR
MOTOR
+
10
ELECTRICAL
CONTROL
FUNCTIONS
8
2 3 5 1
COOLER
1 2 3 4
TEMP. SWITCH
(THERMOSTAT)
+
TEMP.
SENSOR
LOW
PRESSURE
SWITCH
STANDBY
PRESSURE
SWITCH
RL2
RL1
RL3
4
9
6
7
5
5
6
7
7
TEC
RL4
-
-
-
-
-
FILTER /
THERMO-
START
STANDBY
RELAY
SOLENOID
ELECTRIC
SOLENOID
VALVES
COOLER
VALVE
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