Table of Contents
Advertisement
8
Electrical wiring
8.1 General Information
A protected power supply cable is to be connected
to the outdoor unit and a 5-wire control line to the
indoor unit respectively.
DANGER!
All electrical installation work is to be per-
formed by specialist companies. Disconnect
the power supply when connecting the elec-
trical terminals.
WARNING!
All electric lines are in accordance VDE regula-
tions to dimension and to lay.
NOTICE!
The electrical connection for the units must be
made at a separate feedpoint with a residual
current device in accordance with local regula-
tions and should be laid out by an electrician.
We 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. Tighten as required.
8.2 Connecting the indoor unit
We recommend that a mains/repair switch be
n
installed near the outdoor unit.
The terminal blocks for making the connections
n
are located at the rear of the unit. When the
unit is installed, measurements can be made
from the front by removing the cover.
If an optional condensate pump is used as an
n
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.
The units' scope of delivery includes a ten metre
long, four-core control line for connecting the
indoor unit to the outdoor unit. The control line to
the outdoor unit contains a data cable which is
used to establish communication between the
indoor unit and the outdoor unit. This is used for
controlling the cooling and heating performance
and for forwarding malfunction messages to the
indoor unit. If the length is insufficient, you can
extend the control lines on the indoor unit.
Make the connection as follows:
1.
Open the air inlet grill.
2.
Remove the covers on the right-hand side
(Fig. 42).
3.
Disconnect the control line from the terminal
block and remove the control line.
4.
Connect the customer-laid control line to the
terminals (Fig. 42).
5.
Join the customer-laid control line to the sup-
plied control line in a professional manner.
6.
Insert the control line plug into the corre-
sponding socket on the outdoor unit.
7.
Re-assemble the unit.
3
1
2
Fig. 42: Connecting the indoor unit
1: Cover
2: Strain relief
3: Terminal block for control line
4: Control line from outdoor unit
1
4
31
Advertisement
Table of Contents
