Bedienungsanleitung Dimplex WI 100TU (Seite 21 von 64) (Deutsch, Englisch, Französisch)

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www.dimplex.de 452234.66.37 · FD 9205 EN-7

English

WI 50TU - WI 100TU

Fig. 7.2:Sensor characteristic curve, standardised NTC-2 ac-

cording to DIN 44574 External temperature sensor

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 meas-

ured 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, ex-

ternal 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 in-

cluded 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 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

consumer 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

During start-up, observe the respective national safety regula-

tions and the applicable VDE safety regulations, particularly

VDE 0100, as well as the technical connection requirements of

the utility companies (EVU) and network operators!

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-J19; N1-J20; N1-J23; N1-J24 and the terminal strips

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

nected to these terminals, the heat pump manager will be de-

stroyed

7.5.2 Electrical installation

1) The supply cables (with up to 4-core) for the power element

of the heat pump or the primary pump are routed from the

heat pump's electricity meter to the heat pump. The cable for

the heat pump is routed via the utility contactor (if required).

Connection of the mains cable is at the control panel of the

heat pump via the terminals: X1: L1/L2/L3/PE or X1: L11/

L21/L31/PE.

The power supplies are fitted with an all-phase disconnec-

tion with at least 3 mm contact opening distance (e.g. utility

protection contactor, power contactor), as well as an all-

phase cutout switch, with shared activation of all external

conductors (release currents and characteristics in accord-

ance with device information; see circuit diagram for further

details).

ATTENTION!

Ensure the rotary field is clockwise when connecting the mains cables (if

the rotary field is not clockwise, the heat pump will not work properly, is

very loud and may cause damage to the compressor).

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