Hydraulic Bonding - GDD DDV 25 Mode D'emploi

6

Hydraulic Bonding

Heating circuits with differential pressureless manifold
Fig. 6.1: Integration diagram for mono energy heat pump operation with one heating circuit, a buffer tank connected in series
and hot water heating
Two heating circuits with a dual differential pressureless manifold and exter-
nal supplementary heating for a buffer tank connected in series and hot water
Fig. 6.2: Integration diagram for mono energy heat pump operation with two heating circuits, external supplementary heating,
buffer tank connected in series and hot water preparation
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Preconfiguration
Setting
Mono
Operating mode
energy
1. Heating circuit Yes
2. Heating circuit No
Hot water
Yes
preparation
Request Sensors
Flange heater Yes
Swimming pool
No
preparation
The heating water flow must be
ensured using a dual differential
pressureless manifold.
The heating circuit pumps (M13
or M15) supply the flow around
the return flow sensor and
prevent the heat pump from
switching on when the system
temperatures are too high.
In order to minimise the running
times, the circulating pump
(M16) in the generator circuit is
only operational when the
compressor is running.
Preconfiguration
Setting
Mono
Operating mode
energy
1. Heating circuit Yes
2. Heating circuit Yes
Hot water
Yes
preparation
Request Sensors
Flange heater Yes
A safety temperature monitor
which protects the distribution
system from impermissibly high
temperatures must be used
when the buffer tank connected
in series is charged externally.
With permanent charging
temperatures of over 50 °C, air-
to-water heat pumps must be
blocked via an additional
thermostat for domestic hot
water and swimming pool water
preparation (ID3).
The dual differential
pressureless manifold protects
the heat pump from excessively
high system temperatures, since
the circulating pump (M16) in the
generator circuit is only active
when the compressor is running
in heating operation.
Note: Domestic hot water and
swimming pool water cannot
be prepared via external
charging of the buffer tank
connected in series.
EN-5