Dimplex SI 11TU, Installation And Operating Instructions Manual

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www.dimplex.de 452235.66.05 · FD 9506 EN-5
English
SI 6TU - SI 18TU
6 Set-up
6.1 General Information
The brine-to-water heat pump must be installed in a frost-free,
dry room on an even, smooth and horizontal surface. The entire
frame should lie directly on the floor to ensure an adequate
soundproof seal. If supporting feet are used, the heat pump must
be installed horizontally. In this case, the specified sound level
can be up to 3 dB(A) higher, and additional sound insulation
measures may be necessary.
The heat pump must be installed so that maintenance work can
be carried out without hindrance. This can be ensured by main-
taining a clearance of approx. 1 m in front of and on each side of
the heat pump.
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 silently 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 Installation
7.1 General Information
The following connections need to be established on the heat
pump:
 Flow and return of the brine (heat source system)
 Flow and return flow of the heating system
 Temperature sensor
 Voltage supply
7.2 Heating System Connection
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
liquifier could cause the heat pump to completely break down.
Once the heating system has been installed, it must be filled, de-
aerated and pressure-tested.
ATTENTION!
The maximum test pressure in the heating circuit and the brine circuit is
6.0 bar (ü). This value must not be exceeded.
Consideration must be given to the following when filling the sys-
tem:
 Untreated filling water and make-up water must be of drink-
ing water quality (colourless, clear, free from sediments)
 Filling water and make-up water must be pre-filtered (pore
size max. 5 µm).
Scale formation in hot water heating systems cannot be com-
pletely avoided, but in systems with flow temperatures below
60 °C the problem can be disregarded.
With medium and high-temperature heating systems, tempera-
tures above 60 °C can be reached.
The following standard values should therefore be adhered to
concerning the filling water and make-up water (according to VDI
2035 Sheet 1):
Total heat
output in [kW]
Total alkaline earths
in mol/m³ and/or
mmol/l
Total
hardness in °dH
up to 200

2.0

11.2
200 to 600

1.5

8.4
> 600 < 0.02 < 0.11