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Dimplex LA 33TPR Seite 38

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EN-14 452166.66.14 · FD 0008 www.glendimplex.de
English LA 33TPR
7.5 Electrical connection
7.5.1 General
All electrical installation work must be carried out by a trained
electrician or a specialist for the specified tasks in accordance
with the
installation and operating instructions,
country-specific installation regulations (e.g. VDE 0100),
technical connection conditions of the energy suppliers
and supply grid operators (e.g. TAB) and
local conditions.
To ensure that the frost protection function of the heat pump
works properly, the heat pump manager can only be briefly dis-
connected from the power supply and the flow must be main-
tained through the heat pump.
CAUTION!
!
!
The switch box must be designed to have restricted breathing
in accordance with DIN EN 60079-15. It may only be opened
by authorised and qualified after-sales service technicians in
connection with maintenance or service work. Prior to
commissioning or after the work is complete, a check must be
carried out to determine restricted breathing in accordance
with the repair manual.
All supply lines on the heat pump must be fed through the des-
ignated free cable glands into the connection box located next
to the switch box. The lines must be firmly screwed into their
feed-throughs. Opening the restricted-breathing switch box for
this purpose is not necessary.
CAUTION!
!!
Changes on the restricted breathing switch box, such as
additional cable glands or incomplete screw connections on
the cable glands and the switch box cover are not permitted.
7.5.2 Electrical installation work
CAUTION!
!!
Work outdoors on electrical equipment or live components
may only be carried out in dry weather conditions. Do not
perform any such work if it is raining, snowing or there is other
precipitation.
A standard 5-core cable is used to connect the heat pump to
the power supply.
The cable must be provided on-site. The conductor cross sec-
tion is selected in accordance with the power consumption of
the heat pump (see attachment Device Information) and the
applicable VDE (EN) and VNB regulations.
An all-pole disconnecting device (e.g. circuit breaker, main
switch, utility company blocking contactor, power contactor,
mobile switch-off device (see cap. 3.4 on page XI) for mainte-
nance etc.), with a contact clearance on each pole according to
the conditions of overvoltage category III (min. 3 mm), must be
included in the installation for switching off from the mains.
These switching equipment components must be installed out-
side the safety zone (see cap. 6.1 on page 7) (tripping current
according to device information). When installing a residual cur-
rent device, a version that is suitable for DC components that
could occur due to electronic equipment, for example, must be
used (RCD type B).
The relevant components in the heat pump contain an internal
overload protection.
When connecting, ensure that the incoming supply has a clock-
wise rotating field.
Phase sequence: L1, L2, L3.
CAUTION!
!
!
Ensure that there is a clockwise rotating field: With incorrect
wiring, starting of the heat pump is prevented. A
corresponding warning is indicated on the display of the heat
pump manager (adjust wiring).
The control voltage is supplied via the heat pump manager
(controller -N1).
A 3-pole line must be laid for this in accordance with the
electrical documentation. Further information on the wir-
ing of the heat pump manager is available in the heat pump
manager operating instructions.
A shielded communication line (J-Y(ST)Y ..LG) (not in-
cluded in the scope of supply) connects the heat pump
manager (controller -N1) with the controller -N0 installed in
the heat pump. More detailed instructions can be found in
the heat pump manager operating instructions and in the
electrical documentation (inside the document folder on
the device and the heat pump manager packaging).
NOTE
º
ºººº
The communication cable is necessary for the function of
air-to-water heat pumps in outdoor installation. It must be
shielded and laid separately from the mains cable.
7.5.3 Demand sensor connection
The demand sensor R2.2 (NTC 10) is included with the heat
pump manager (controller -N1). It must be installed depending
on the hydraulics used (see cap. 3 on page VIII).
If a demand sensor is not connected, the second heat genera-
tor cannot be controlled with the heat pump manager in the
event of an interruption in communication either.
NOTE
º
ºººº
The return sensor R2 installed in the heat pump is active when
the compressor is running and must not be disconnected.
… 38 …

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