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REMKO EMF / EMT
8
Electrical connection
8.1
Electrical connection
n
It is necessary to lay a power-supply cable
both to the outdoor module and, separately, to
the indoor module.
n
Power to the indoor module may not be discon-
nected by the power company. (Frost protec-
tion)
n
All indoor- and outdoor modules require a
single-phase power supply at 230 V. / 50 Hz
The electrical connection between outdoor-
n
and indoor modules is made using three-wire
control cable.
n
Where applicable, a separate power supply
shall be provided to the indoor module for elec-
tric booster heating.
n
The heat-pump manager needs to know
whether a power-company release- or off-
period is in effect. An electrically-isolated
switch must be installed for this purpose. (An
open switch signifies power available, an open
switch, off-time.)
Ä Chapter 8.4 'Connection diagram,
n
From side
terminal configuration' on page 44 of this
manual can be found a connection schematic
along with corresponding circuit diagrams.
n
Special rates for heat pumps may be offered
by the power company (PSC).
n
Ask your local power company about the
details of any rates that might be available.
DANGER!
All electrical installation work must be done by
an electrician.
WARNING!
Always note the currently applicable VDE
guidelines and the notes in TAB 2007. The size
and type of the fuse are to be taken from the
technical data.
38
WARNING!
All cable sizes are to be selected according to
VDE 0100. Special attention should be given to
cable lengths, cable type and the kind of instal-
lation. The information in the connection dia-
gram and in the system overview are to be
seen as an acceptable installation possibility
only in a standard case!
NOTICE!
Make sure to connect the outdoor module's
neutral connector properly, otherwise the varis-
tors on the line-filter circuit board will be
destroyed.
Check all plugged and clamped terminals to
verify that they are seated correctly and make
permanent contact. Tighten as required.
Electrical connection - indoor module
The following instructions describe the electrical
connection of the EMF and EMT Series indoor
module. Shown here is the connection for the EMF
Series.
1.
Fold down or remove the lower housing-
cover (Fig. 38-A)
2.
Loosen the two screws that secure the front
of the housing and move it upward (Fig. 38-
B)
3.
Loosen the two screws that secure the con-
trol-box cover, and lower it. Now, the cover
can be removed (Fig. 38-C) and the control
box be lowered for inserting the electric
cables. (Fig. 38-D)
4.
Thread the power cable - as well as the con-
trol cable between the indoor- and outdoor
modules and the cables for external devices
and sensors - though the cable openings into
the indoor module (Fig. 38-E). Note that the
cable openings in the EMT series are located
above rather than below.
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