GB
3.5
Electrical connection
3.5.1
Electrical circuit diagram
DANGER
Life-threatening danger due to electric shock
Live units and exposed connection cables can generate an electric shock and cause severe accidents.
➢ Work on electrical connections must be carried out exclusively by trained, qualified electricians.
➢ Ensure that the unit is voltage-free before routing all electrical connections.
Power cable
Alarm
Pos
Designation
B1
Thermostat
X1
Plug contact
X6
Terminal contact
Only cooling units with the rated operating voltage 400V / 460V can be optionally connected to a different mains
voltage.
• Reconnection takes place via the supply of the primary side of the transformer.
Operating manual PWS and PWI 6502 785408484 © Pfannenberg GmbH
Pos
Designation
M1
Fan
X3
Plug contact
X40
Ground terminal contact
Cover
Pos
Designation
T1
Transformer
X5
Terminal contact
Y1
Solenoid valve
11189-813a
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