Technical data
www.dimplex.de 01.2012 | Project planning manual for heat pumps for heating and domestic hot water preparation | 111
Integration of the heat pump in the heating system 8.12
8.11.3 Renewable heat generators
The heat pump manager has a separate operating mode for the
integration of renewable heat generators such as solid fuel boil-
ers or thermal solar energy systems. The “bivalent-renewable”
operating mode can be chosen during the preconfiguration. In
this operating mode, the heat pump heating system responds
like a mono energy system; when heat is supplied by the renew-
able heat source, the heat pump is automatically blocked and the
heat generated by the renewable heat source is mixed into the
heating system. The mixer outputs of the bivalence mixer (M21)
are active.
If the temperature in the renewable cylinder is high enough, the
heat pump is also blocked during domestic hot water preparation
or swimming pool requests.
Heat pumps which are not equipped with a flow sensor (R9) must
be retrofitted with one. In reversible heat pumps or heat pump
heating systems with a third heating circuit, “bivalent-renewable”
is not available since the sensor (R13) is already in use.
Fig. 8.27: Circuit example for heating operation with a solid fuel boiler
8.12 Heating a swimming pool
Swimming pool heating is integrated parallel to the heating and
domestic hot water heat pump. The swimming pool is heated by
means of a swimming pool heat exchanger (hydraulic integra-
tionsee Fig. 8.54 on page 127).
We recommend controlling the swimming pool heating via a time
switch. The heating requirements of the swimming pool should
only be forwarded to the heat pump manager if the swimming
pool pump (M19) is running and the filter pump is switched on.
The transmission capacity of the heat exchanger must be based
on the specific features of the heat pump, e.g. maximum flow
temperature of 55 °C and the minimum heating water flow rate of
the heat pump.
Not only the nominal output, but also the construction, the flow
rate through the heat exchanger and the thermostat setting are
important criteria for making a selection. The design temperature
of the pool (e.g. 27 °C) and the flow rate in the pool circuit should
also be taken into account when designing the system.
Fig. 8.28: Integration of swimming pool heating with heat pumps
NOTE
The integration shown only applies for heat pumps with heat pump man-
ager WPM 2006/2007.
NOTE
In heat pump heating systems with no auxiliary circulating pump M16
(e.g. no dual differential pressureless manifold Chapt. 8.4.3 on page
100), this pump output can be used to control the swimming pool circu-
lating pump. In the menu "Settings - Plant - Pump control", the setting for
"Aux. pump pool" must be set to "Yes".
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M19 Swimming pool water pump
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