Bedienungsanleitung Dimplex SI 7TE (Seite 24 von 64) (Deutsch, Englisch, Französisch)

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8.2

8.2.3 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.

Remove paint, rust and scale from heating pipe.

Coat the cleaned surface with heat transfer compound (ap-

ply sparingly).

Attach the sensor with a hose clip (tighten firmly, as loose sen-

sors can cause malfunctions) and thermally insulate.

Fig. 8.4:Mounting a pipe-mounted sensor

Fig. 8.5:Dimensions of the NTC-2 standard strap-on sensor in a

metal casing

Fig. 8.6:Dimensions of the NTC-10 strap-on sensor in a plastic

casing

8.2.4 Hot water distribution system

The KPV 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.

DDV 32 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.

8.2.5 Electrical installation of the

heat pump

1) The supply cables for the output section of the heat pump

(up to 5-core) are 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

voltage).

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).

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

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

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

protection functions could 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 G/24 V AC to connector terminal

J5/ID3. 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 N and N1-J13/NO4.

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

water cylinder should be dimensioned according to the radi-

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

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

nals N and N1-J16/NO 10.

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

stalled in the electrical distribution system. The mains cables

for the heating elements should be dimensioned and pro-

tected according to DIN VDE 0100.

7) All cables must be installed as permanent wiring.

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

N and N1-J13/NO 5.

9) The DHW loading pump (M18) is connected to terminals N

and N1-J13/NO 6.

10) The brine or well pump is connected to terminals N and N1-

J13/NO 3.

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

pumps for indoor installation.

The heat pump manager is connected via the following ter-

minals: GND and N1-J2/B2.

12) The external sensor (R1) is connected to terminals GND

and N1-J2/B1.

13) The hot water sensor (R3) is installed in the hot water cyl-

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

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