Manual Dimplex WI 10TU (page 25 of 72) (English, German, French)

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www.glendimplex.de 452235.66.21a · FD 0106 EN-7

WI 10TU - WI 22TU 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 hot water cylinder. A compact system is used to sim-

plify the installation process, so that a lot of different compo-

nents do not have to be installed individually. Further informa-

tion 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

All electrical connection work may only be carried out by a

trained electrician or a person qualified for the tasks in hand in

accordance with the

installation and operating instructions,

country-specific installation requirements (e.g. VDE 0100)

technical connection requirements of the energy suppliers

and supply grid operators (e.g. TAB) and

the 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; N1-J20; N1-J23 to N1-J26 and the terminal

strips X3; X5.1. If, due to a wiring error, the line voltage is mis-

takenly connected to these terminals, the heat pump manager

will be destroyed

7.5.2 Electrical installation

1) The supply cable (with up to 5 cores) for the power element

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

heat pump's electricity meter to the heat pump.

The cable for the heat pump is routed via the utility contac-

tor (if required). Connection of the mains cable is at the

control panel of the heat pump via the terminals: X1: L1/

L2/L3/N/PE or X1: L10/L20/L30/N0/PE. If no utility con-

tactor is used, the electrical loads are supplied via a shared

feed cable (bridge feeds using bridges supplied). The

power supplies are fitted with an all-phase disconnection

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 fur-

ther details).

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).

2) The three-core electric 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 X2: L/N/PE.

Details on the power consumption of the heat pump are

listed on both the product information sheet and the type

plate.

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

pump manager must have a constant voltage. For this rea-

son, it should be tapped upstream from the utility blocking

contactor or be connected to the household current, as im-

portant protection functions could otherwise be lost dur-

ing a utility block.

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

(1/3/5 // 2/4/6) and an auxiliary contact (NO contact 13/

14) should be dimensioned according to the heat pump

output and must be supplied by the customer.

The NO contact of the utility blocking contactor (13/14) is

looped from terminal strip X3/G to connector terminal X3/

A1. CAUTION! Extra-low voltage!

4) The contactor (K20) for the immersion heater (E10) of

mono energy systems (HG2) should be dimensioned ac-

cording to the radiator output and must be supplied by the

customer. It is controlled (230 V AC) by the heat pump

manager via terminals X2/N and X2/K20.

5) The contactor (K21) for the flange heater (E9) in the hot

water cylinder should be dimensioned according to the ra-

diator output and must be supplied by the customer. It is

controlled (230 V AC) by the heat pump manager via termi-

nals X2/N and X2/K21.

6) The contactors mentioned above in points 3, 4 and 5 are

installed in the electrical distribution system. Mains cables

for the installed heaters must be laid and secured in ac-

cordance with the valid standards and regulations.

7) All installed electric cables must have permanent wiring.

8) The heat circulating pump (M13) is activated via the con-

tact N1-J13/NO5. The connection points for the pump are

X2/M13 and X2/N. When using pumps where the switch-

ing capacity exceeds the output, a coupling relay must be

interposed.

9) The auxiliary circulating pump (M16) is activated via the

contact N1-J16/NO9. The connection points for the pump

are X2/M16 and X2/N. When using pumps where the

switching capacity exceeds the output, a coupling relay

must be interposed.

10) The domestic hot water circulating pump (M18) is acti-

vated via the contact N1-J13/NO6. The connection points

for the pump are X2/M13 and X2/N. When using pumps

where the switching capacity exceeds the output, a cou-

pling relay must be interposed.

11) The brine or well pump (M11) is activated via the contact

N1-J12/NO3. The connection points for the pump are on

contactor K5:2/4/6. A coupling relay is already integrated

in this output.

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