Bedienungsanleitung Dimplex WI 120TU (Seite 23 von 60) (Deutsch, Englisch, Französisch)

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www.glendimplex.de 452237.66.68 · FD 0211 EN-7

WI 120TU English

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 domestic 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 in-

formation can be found in the relevant installation instructions.

Compact manifold

The return sensor can remain in the heat pump, or should be in-

stalled in the immersion sleeve. The remaining empty space be-

tween the sensor and the immersion sleeve must be filled com-

pletely 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

pressureless manifold.

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 must remain con-

nected 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-

suppressed. 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-J19 to N1-J20; N1-J23 to N1-J26 and the terminal

strips X3. If, due to a wiring error, the line voltage is mistakenly

connected to these terminals, the heat pump manager will be

destroyed.

NOTE

ºººº

For installation work on the switch box, ensure that the mains

cable and signal cables are inserted separately into the switch

box. The specially arranged switch box inlets must be used for

this purpose (see Fig. 7.4 on page 7).

The mains cables and signal cables must also always be laid

separately in the switch box during wiring work.

Fig. 7.4:Cable inlet switch box

7.5.2 Electrical installation work

1) The four-core electrical supply cable for the heat pump

power part is fed from the heat pump electricity meter into

the heat pump via the utility company blocking contactor

(if required) (for supply voltage, see heat pump manual).

The mains cable is connected to the heat pump contact

plate via terminals X1: L1/L2/L3/PE.

CAUTION!

Ensure that there is a clockwise rotating field: With incorrect

wiring the starting of the heat pump is prevented. A

corresponding warning is indicated on the display of the heat

pump manager (adjust wiring).

An all-pole disconnecting device with a contact gap of at least

3 mm (e.g. utility company blocking contactor or power contac-

tor) and an all-pole circuit breaker with common tripping for all

external conductors must be installed in the power supply for

the heat pump (tripping current and characteristic in compli-

ance with the device information).

2) The three-core supply cable for the heat pump manager

(heating controller N1) is fed into the heat pump. Connec-

tion of the control cable to the contact plate of the heat

pump via terminal X2: L/N/PE.

The (L/N/PE~230 V, 50 Hz) supply cable for the heat pump

manager must have a continuous voltage. For this reason,

it should be tapped upstream from the utility company

blocking contactor or be connected to the household cur-

rent, as important protection functions could otherwise be

lost during a utility block.

3) The utility company blocking contactor (K22) with main

contacts and an auxiliary contact must be designed and

provided by the customer in accordance with the heat

pump output.

The NO contact of the utility company blocking contactor

is looped from the terminal strip X3/G to the plug-in termi-

nal X3/ID3. CAUTION! Extra-low voltage!

Supply mains cable

line voltage

Supply signal cable

extra-low voltage

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