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83052300eUK © ait-deutschland GmbH
Program area
“Parallelconnection”
NOTICE
Parallel operation is not possible with output con-
trolled air/water heat pumps!
The parallel connection is used for connecting four heat
pumps with one another in order to allow them to be con-
nected to a shared heating system.
One of these heat pumps (master HP) takes over the task of
controlling the entire heating system.
An outdoor sensor and the associated control sensor
(return sensor) of the heating system must be connected
to this heat pump.
Also, only this heat pump will be able to activate a second
heat generator (2 hg).
Any slave heat pump of the system can be used for domestic
hot water preparation. To prepare domestic hot water using
a heat pump connected in parallel, connect the associated
domestic hot water sensor to the corresponding heat pump.
Also required is the connection of the electrical supply con-
tact to the heat pump! While the heat pump is preparing
domestic hot water, it is excluded from the control com-
pound and not energised by the master HP.
NOTICE
Parallel operation is not possible unless all inte-
grated heat pumps are tted with the same number
of compressors!
NOTICE
The el. sup. blockade must always be connected to
the master heat pump and the heat pump responsi-
ble for domestic hot water preparation!
NOTICE
There is only ONE master per parallel connection.
The individual stages of a parallel connection are activated
such that the rst compressor will always be the rst to run
before the second compressor of a heat pump is energised.
The individual compressor stages cannot be locked depend-
ing on the outdoor temperature.
The master HP will always energise the stage with the
lowest running time based on the operation hours of the
individual devices.
connectIon
The heat pumps are connected to one another via the Ethernet interface and a hub or “switch” (not included in the scope
of delivery!).
Example: 4 heat pumps for heating, 1 heat pump is responsible for domestic hot water
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