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Subject to change without notice | 83051400cUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Water heating
Water heating with the heat pump requires an addition-
al hot water circuit, parallel to the heating circuit. Make
sure that the heating water charge is not channelled
through the buffer tank of the heating circuit.
“Hydraulic connection” instructions.
Hot-water tank
If the heat pump will be used for heating hot water, you
must integrate special hot-water tanks in the heat pump
system. The storage volume must be sufficient so that
the required hot water quantity is available even during
a power cut.
NOTICE
The heat exchanger surface of the hot water
tank must be dimensioned so that the heating
capacity of the heat pump is transferred with
minimal spreading.
We offer a variety of hot-water tanks for you to choose
from. They are optimised for use with your heat pump.
NOTICE
Integrate the hot-water tank in the heat pump
system according to the hydraulic diagram for
your system.
Pressure relief
Equip the heating circuit in accordance with local
standards and directives with a safety valve and an
expansion tank.
Also install filling and emptying devices, shut-off devices
and non-return valves in the heating circuit.
Separating buffer tank
The hydraulic integration of the heat pump is only
permissible with a separating buffer tank (
Isolation
against vapour diffusion
).
The flow direction of the hot water system must also be
rotated via the switching valve during cooling.
Hydraulic diagram see page 33.
V
separating buffer tank
=
minimum flow rate of heat circuit
volume flow / hour
10
For the minimum flow rate of the heat
circuit volume flow, see overview “Technical
data
/
Scope of delivery”, “Heating circuit”
section.
Circulating pumps
ATTENTION
Always note the model.
Do not use unregulated circulating pumps.
Circulating pumps and domestic hot water cir-
culation pumps must be multi-stage, regulated
pumps.
