Bedienungsanleitung Dimplex LIK 8TE (Seite 25 von 60) (Deutsch, Englisch, Französisch)

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7.5

7.5 Electrical connection

7.5.1 General

During start-up, observe the respective national safety

regulations 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-

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-J7; N1-J9 to N1-J11 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 supply cable for the output section of the heat pump (up

to 4-core) is fed from the electricity meter of the heat pump

via the utility blocking contactor (if required) into the heat

pump (see heat pump operating instructions for supply volt-

age).

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

least 3 mm (e.g. utility 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 com-

pliance with the device information).

When connecting the device, ensure that the incoming sup-

ply has a clockwise rotating field L1; L2; L3.

ATTENTION!

Ensure that there is a clockwise rotating field: Operating the compressor

in the wrong rotational direction may cause damage to the compressor.

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

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

The correct control voltage must be ensured according to

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 reason, it should be tapped upstream from the utility

blocking contactor or be connected to the household

current, as important protection functions may otherwise be

lost during 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 N1-J5/

ID3. CAUTION! Extra-low voltage!

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

water cylinder should be dimensioned according 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 N1-J16/NO10.

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

installed in the electrical distribution system. The mains

cables for the heating elements should be dimensioned and

protected according to DIN VDE 0100.

6) All cables must be installed as permanent wiring.

7) The heat circulating pump (M13) is connected to terminals

X2/N and N1-J13/NO 5.

8) The DHW loading pump (M18) is connected to terminals X2/

N and N1-J13/NO 6.

9) The return sensor (R2) is integrated into air-to-water heat

pumps for indoor installation.

The connection to the HPM is at terminals X3/GND and N1-

J2/B2.

10) The external sensor (R1) is connected to terminals X3/GND

and N1-J2/B1.

The hot water sensor (R3) is installed in the hot water cylinder

and is connected to terminals X3/GND and N1-J2/B3.

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