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NOTICE!
If condensate is removed via a duct in accord-
ance with DIN EN 1717, ensure that any micro-
biological contamination present on the waste-
water side (bacteria, fungi, viruses) cannot
enter the unit connected to it.
8 Electrical wiring
8.1 General notes
A protected power supply cable is to be connected
from the outdoor unit to the indoor unit, and a pro-
tected three-core control line is to be connected 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.
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.
n W
e recommend that a main/repair switch be
installed close to the unit. This must be pro-
vided by the customer.
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.
The control line to the outdoor unit contains data
cables which serve to realise the communication
between the indoor unit and the outdoor unit. This
is used for controlling the cooling and heating
capacity and for forwarding alarm codes to the
indoor unit.
Make the connection as follows:
1. Open the unit cover
.
2. Loosen the covers on the right side using a
cross screwdriver
. (Fig. 18).
3. The connection options for the power supply
and control lines are located under the cover
.
4. Connect the control line provided by the cus-
tomer to the terminals P
,Q and E.
5. Connect the control line provided by the cus-
tomer to the indoor units and outdoor unit in
a professional manner (also terminals P
, Q
and E). If the installed indoor unit is the last
one in the connection sequence, the 120
Ohm resistor supplied must be installed
between the terminals P and Q.
6. Then close of
f the cover and the unit cover.
Fig. 18: Connecting the indoor unit
1: Cover
2: Strain relief
3: Terminal block for control line
4: Control line from outdoor unit
REMKO MVW series
26
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