Installation; General; Acoustic Emissions; Assembly - Dimplex 452237.66.54A Montage- Und Gebrauchsanweisungen

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
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.
0,7 m
Connection side
Operating side
1,0 m
Neither frost nor temperatures higher than 35 °C must occur in
the installation location at any time of the year.
NOTE
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

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0,7 m
452237.66.54a · FD 0110

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.
Total
Total heat out- Alkaline earths in
put in kW mol/m³ and/or
mmol
< 50
2.0
50 - 200
2.0
200 - 600
1.5
> 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 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.
English
Specific system volume
(VDI 2035) in l/kW
< 20 20 < 50
50
Total hardness in °dH
16.8 11.2
 11.2
8.4
1
< 0.11
1
8.4
< 0.11
1
< 0.11
EN-5