Connection On Heating And Hot Water Side; Important; Connection On Heat Source Side - Dimplex WI 140TUR+ Instructions D'installation Et D'utilisation

7.2 Connection on heating and hot
water side
ATTENTION!
The heating system must be flushed prior to connecting the heat pump.
Before completing the heat pump connections on the heating
water side, the heating installation must be flushed in order to re-
move any impurities that may be present, as well as residues of
sealing material, and the like. Any accumulation of deposits in
the condenser may result in a total failure of the heat pump.
ATTENTION!
It is recommended that the secondary side be equipped with the flow rate
switch (available as an option).
ATTENTION!
It is recommended that the primary side be equipped with the flow rate
switch (available as an option).
Once the installation on the heating side has been completed,
the heating system must be filled, de-aerated and pressure-
tested.
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 alkaline earths
Total heat
in mol/m³ and/or
output in [kW]
mmol/l

up to 200

200 to 600
> 600 < 0.02
Use of the optionally available four-way reversing valve is recom-
mended. A detailed installation description can be found in the in-
structions included with the valve.
Note:
For operation of the heat pump with the four-way reversing valve,
it is essential to set up the hydraulic connections according to the
instructions included in the scope of supply of the valve. The in-
structions give a description of the precise procedure for the cor-
rect assembly of hydraulics. Non-observance of this will lead to
restrictions in the operation of the heat pump.

Important:

The notes/settings in the instructions of the heat pump manager
must always be observed and carried out accordingly; not doing
so will lead to malfunctions.
www.dimplex.de
Total
hardness in °dH

2.0 11.2

1.5 8.4
< 0.11
452234.66.40 · FD 9506
Heating water minimum flow rate
The minimum heating water flow through the heat pump must be
assured in all operating states of the heating system. This can be
accomplished, for example, by installing either a dual differential
pressureless manifold.
Provided the heat pump manager and heating circulating pumps
are ready for operation, the frost protection feature of the heat
pump manager is active. If the heat pump is taken out of service
or in the event of a power failure, the system has to be drained.
In heat pump installations where a power failure cannot be read-
ily detected (holiday house), the heating circuit must contain a
suitable antifreeze product.
7.3 Connection on heat source
side
The following procedure must be observed when making the
connection:
Connect the well pipes to the heat pump's flow and return heat
source.
ATTENTION!
It is essential that the dirt trap included in the accessories pack is
installed in the return (inlet).
ATTENTION!
The well water must comply with the required water quality standards.
The hydraulic integration diagram must be adhered to.
WI 140TUR+
EN-7