7 Electrical wiring
7.1 General Information
A protected power supply cable is to be connected
to the outdoor unit and a five-core control line to
the indoor unit respectively
.
DANGER!
All electrical installation work is to be performed
by specialist companies. Disconnect the power
supply when connecting the electrical terminals.
WARNING!
All electric lines are in accordance VDE regula-
tions to dimension and to lay
.
NOTICE!
The electrical connection of the units must be
carried out in accordance with VDE regulations.
W
e recommend using an FI circuit breaker that
is sensitive to all currents, as increased leakage
currents can occur.
W
e recommend using shielded wires for the
control lines.
Check all plugged and clamped terminals to
verify that they are seated correctly and make
permanent contact. T
ighten as required.
7.2 Connecting the indoor unit
n W
e recommend that a mains/repair switch be
installed near the outdoor unit.
n The terminal blocks for making the connections
are located at the rear of the unit. When the
unit is installed, measurements can be made
from the front by removing the cover.
n If an optional condensate pump is used as an
accessory in conjunction with the unit, it may
be necessary to install an additional relay with
a higher contact rating after the switch-off con-
tact on the pump to switch off the compressor.
Make the connection as follows:
1. Open the air inlet grill.
2. Remove the covers on the right-hand side
(Fig. 37).
3. Connect the customer-laid control line to the
terminals (
Fig. 37).
4. Re-assemble the unit.
Fig. 37: Connecting the indoor unit
1: Cover
2: Strain relief
3: Terminal block for control line
4: Control line from outdoor unit
33
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