9
C.2 Electrical
connection
Installation
Danger
Before working on the unit, switch off the power supply and secure it
against being switched on again!
Check for the absence of power!
Electrical connections may only be made by a specialist and in comp-
liance with the applicable regulations. The controller may not be put into
operation if there is visible damage to the housing, e.g. cracks.
Caution
Low-voltage cables such as temperature sensor cables must be routed
separately from mains voltage cables. Feed temperature sensor cables
only into the left-hand side of the unit, and mains voltage cables only
into the right-hand side.
Caution
The customer must provide an all-pole disconnecting device, e.g. a
heating emergency switch.
Caution
The cables being connected to the unit must not be stripped by more
than 55mm, and the cable jacket must reach into the housing just to the
other side of the strain relief.
1. Open controller housing (see C.1.1)
2. Strip cables max. 55mm, insert,
fi
t the
strain relief devices, strip the last 8-9
mm of the wires. (Fig.C.2.1)
3. Open the terminals using a suitable
screwdriver (Fig. C.2.1) and make
electrical connections on the controller
(see section D)
4. Re
fi
t upper part of housing and fasten
with screw.
6. Switch on mains voltage and place
controller in operation
8...9
~30°
max. 55
C.2.1