Bedienungsanleitung Dimplex SI 35TUR (Seite 21 von 56) (Deutsch, Englisch, Französisch)

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www.glendimplex.de 452237.66.54a · FD 0110 EN-5

SI 35TUR English

6Installation

6.1 General

The brine-to-water heat pump must be installed in a frost-free,

dry room on an even, smooth and horizontal surface. The entire

base of the frame should lie directly on the floor to ensure an

adequate soundproof seal. If this is not the case, additional

sound insulation measures may be necessary.

The heat pump must be installed so that maintenance work can

be carried out without hindrance. This is ensured when observ-

ing the distances to solid walls as shown in the figure.

Neither frost nor temperatures higher than 35 °C must occur in

the installation location at any time of the year.

NOTE

ºººº

The heat pump is not intended for use over 2000 metres

above sea level.

6.2 Acoustic emissions

The heat pump operates quietly due to efficient sound insula-

tion. Internal insulation measures should be carried out to pre-

vent vibrations from being transmitted to the foundation or to

the heating system.

7 Assembly

7.1 General

The following connections need to be established on the heat

pump:

Flow and return of the brine (heat source system)

Flow and return of the heating system

Power supply

Temperature sensor

7.2 Connection on heating side

CAUTION!

Flush the heating system prior to connecting the heat pump.

Before connecting the heating water system to the heat pump,

the heating system must be flushed to remove any impurities,

residue from sealants, etc. Any accumulation of deposits in the

liquefier may cause the heat pump to completely break down.

CAUTION!

The maximum test pressure in the heating circuit and the

brine circuit is 6.0 bar). This value must not be exceeded.

Once the heat pump has been connected to the heating sys-

tem, it must be filled, purged and pressure-tested.

The following points must be observed when filling the system:

Untreated filling water and make-up water must be of

drinking water quality

(colourless, clear, free of sediments)

Filling water and make-up water must be pre-filtered (max.

pore size 5 µm).

Scale formation in domestic hot water heating systems cannot

be avoided, but in systems with flow temperatures below 60 °C,

the problem can be disregarded. With high-temperature heat

pumps and in particular with bivalent systems in the higher per-

formance range (heat pump + boiler combination), flow tem-

peratures of 60 °C and more can be achieved. The following

standard values should therefore be adhered to with regard to

the filling and make-up water according to VDI 2035, sheet 1:

The total hardness values can be found in the table.

Fig. 7.1:Guideline values for filling and make-up water in accordance with

VDI 2035

For systems with an above-average specific system volume of

50 l/kW, VDI 2035 recommends the use of fully demineralised

water and a pH stabiliser to minimise the risk of corrosion in the

heat pump and heating system.

CAUTION!

With fully demineralised water, it is important to ensure that

the minimum pH value of 7.5 (minimum permissible value for

copper) is complied with. Failure to comply with this value can

result in the heat pump being destroyed.

It is advisable to mount a dirt trap on the heating water return

side of the mounted hydraulic 4-way reversing valve.

0,7 m

1,0 m

0,7 m

Operating side

Connection side

Total heat out-

put in kW

Total

Alkaline earths in

mol/m³ and/or

mmol

Specific system volume

(VDI 2035) in l/kW

<20 20 < 50 50

Total hardness in °dH

<50 2.0 16.8 11.2

< 0.111

50 - 200 2.0  11.2 8.4

200 - 600 1.5 8.4 < 0.111

> 600 < 0.02 < 0.111

1. This value lies outside the permissible value for heat exchangers in heat

pumps.

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