Wiring diagram
Diagram
Pos.
B1
B2
B3
B4
B5
B6
B7
B8
D12
D19
D20
J2
J3
J5
Description
Condenser surface temperature sensor J6
Evaporator surface temperature sensor J7
Ambient temperature sensor
"Full water tank" sensor
External hygrostat (accessory)
Thermostat (30S/40S only)
Over Temperature (30S/40Sonly)
External pump alarm (accessory)
LED +5V DC supply control
LED Ice on evaporator surface
LED Defrosting active
Low voltage connections
230V connections
Not in use
Pos.
Description
Not in use
Factory settings
J12
Internal hygrostat
J13
Extra output
M1
Cooler compressor
M2
Fan motor
R1
Heating element (30S/40S only)
S1
Heating element on/off (30S/40S only)
T1
Transformer
U2
CPU
X1
Water pump plug
X2
Jack plug for external hygrostat
Y1
Solenoid valve (pressure equalisation)
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