Dimplex WI 14 ME, Installation And Operating Instructions Manual

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www.dimplex.de 452232.66.17 · FD 9402 EN7
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WI 9ME - WI 14ME
7.4.2 Mounting the external temperature
sensor
The temperature sensor must be mounted in such a way that all
weather conditions are taken into consideration and the
measured value is not falsified.
 On the external wall of a heated room used as living space,
if possible on the north or north-west side of the building
 Do not install in a “sheltered position” (e.g. in a wall niche or
under a balcony)
 Not in the vicinity of windows, doors, exhaust air vents,
external lighting or heat pumps
 Not to be exposed to direct sunlight at any time of year
Sensor lead: Max. length 40 m; min. core cross-section
0.75 mm²; external diameter of the cable 4-8 mm.
7.4.3 Installing the strap-on sensor
It is only necessary to mount the strap-on sensors if they are
included in the scope of supply of the heat pump but have not yet
been installed.
The strap-on sensors can be fitted as pipe-mounted sensors or
installed in the immersion sleeve of the compact manifold.
Mounting as a pipe-mounted sensor
 Remove paint, rust and scale from heating pipe.
 Coat the cleaned surface with heat transfer compound
(apply sparingly).
 Attach the sensor with a hose clip (tighten firmly, as loose
sensors can cause malfunctions) and thermally insulate.
7.4.4 Hydraulic distribution system
The compact manifold and the dual differential pressureless
manifold function as an interface between the heat pump, the
heating distribution system, the buffer tank and, in some cases,
even the hot water cylinder. A compact system is used to simplify
the installation process, so that a lot of different components do
not have to be installed individually. Further information can be
found in the relevant installation instructions.
Compact manifold
The return sensor can remain in the heat pump, or should be
installed in the immersion sleeve. The remaining empty space
between the sensor and the immersion sleeve must be filled
completely with heat transfer compound.
dual differential pressureless manifold
In order for the heating circuit pumps of the generator and con-
sumer circuits to supply the flow to the return sensor, this must
be installed in the immersion sleeve of the dual differential pres-
sureless manifold.
7.5 Electrical connection
7.5.1 General
All electrical connection 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 must remain connected
to the power supply and the flow must be maintained through the
heat pump at all times.
The switching contacts of the output relay are interference-sup-
pressed. Therefore, depending on the internal resistance of the
measuring instrument, a voltage can also be measured when the
contacts are open. However, this will be much lower than the line
voltage.
Extra-low voltage is connected to controller terminals N1-J1 to
N1-J11; N1-J24 and terminal strip X3. If, due to a wiring error, the
line voltage is mistakenly connected to these terminals, the heat
pump manager will be destroyed.
7.5.2 Electrical installation
1) The following electrical connections need to be established
on the heat pump.
 Connection of the control line to the control panel of the heat
pump via terminal X2: L/N/PE.
 Connection of the mains cable to the control panel of the
heat pump via terminal X1: L/N/PE.
 Connection of the mains cable of the well pump to the con-
trol panel of the heat pump via terminal X1: L1/N1/PE.
 Connection of the well pump (to be provided by the cus-
tomer) to the control panel of the heat pump via terminal X1:
PE and pump contactor K5: 14/24.
Ensure that the supply voltage for these terminals cannot be
switched off by the tariff contactor when connecting the
mains cable of the well pump, in order to enable the turn-off
delay of the well pump.
All electrical components required for the operation of the
heat pump are located on the control panel.
An disconnecting device with a contact gap of at least 3 mm
(e.g. utility blocking contactor or power contactor) as well as
a 1-pole circuit breaker have to be provided by the customer.
The required conductor cross-section is to be selected ac-
cording to the power consumption of the heat pump, the
technical connection requirements of the respective utility
company as well as all applicable regulations. Details on the
power consumption of the heat pump are listed on both the
product information sheet and the type plate.
2) The three-core ekectrical supply cable for the heat pump
manager (heating controller N1) is fed into the heat pump .
Connection of the control line to the control panel of the heat
pump via terminal X1: L/N/PE.
The (L/N/PE~230 V, 50 Hz) supply cable for the heat pump
manager must have a constant voltage. For this reason, it
should be tapped upstream from the utility blocking contac-
tor or be connected to the household current, as important
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