Installation; General; Acoustic Emissions; Assembly - Dimplex SI 35TUR Instructions D'installation Et D'utilisation

SI 35TUR
6

Installation

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 ad-
equate 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 observing
the distances to solid walls as shown in the figure.
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Neither frost nor temperatures higher than 35 °C must occur in
the installation location at any time of the year.

6.2 Acoustic emissions

The heat pump operates quietly due to efficient sound insulation.
Internal insulation measures should be carried out to prevent vi-
brations from being transmitted to the foundation or to the heat-
ing 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
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7.2 Connection on heating side

ATTENTION!
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.
ATTENTION!
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 system,
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 drink-
ing 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 performance
range (heat pump + boiler combination), flow temperatures 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 hard-
ness values can be found in the table.
Total
Total heat out- Alkaline earths in
put in kW mol/m³ and/or
mmol
2.0
< 50
2.0
50 - 200
1.5
200 - 600
> 600 < 0.02
1. This value lies outside the permissible value for heat exchangers in heat
pumps.
Fig. 7.1:Guideline values for filling and make-up water in accord-
ance 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.
ATTENTION!
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.
English
Specific system volume
(VDI 2035) in l/kW
20 < 50 50
< 20
Total hardness in °dH
16.8 11.2
 11.2 8.4
< 0.11
8.4
1
< 0.11
1
< 0.11
1
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