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Subject to change without notice | 83053600fUK – Translation of the original operating manual | ait-deutschland GmbH
Installation / Hydraulic connection
to heating circuit
The connections for the heating circuit are located on
the underside of the unit.
The connection for the safety assembly is on the top
of the unit:
NOTICE
Dimension heating system so that the free
compression of the circulating pumps inte-
grated in the unit always ensures the mini-
mum heating water flow rate.
Always take into account the connection
pipes between the heat pump and the hy-
draulic module.
ATTENTION
When installing the connections, always
secure the connections on the unit against
twisting, to prevent damage to the copper
pipes inside the unit.
Flush heating circuit thoroughly before connecting
the unit to the heating circuit.
see “Flushing, filling and bleeding the system”,
NOTICE
Contamination and deposits in the heating
circuit can cause malfunctions.
Install filling and draining devices, shut-off valves
and non-return valves at the required locations in
the heating circuit.
“Hydraulic connection” documents.
Safety assembly
The safety assembly for the heating circuit is in the
extra box.
Mount the safety component on the connection
provided on the top of the assembly.
The safety drain of the safety valve must lead into
the drain via a funnel siphon in accordance with the
applicable standards and regulations!
The safety drain must be connected!
Expansion vessels
The expansion vessel for the heating circuit is
integrated.
Always check whether the size of the expansion
vessel is large enough for the system. If necessary, an
additional expansion vessel must be installed on site
according to the relevant standards and guidelines.
NOTICE
The admission pressure of the expansion
vessel must be adjusted to the system (ap-
prox. 0.5 bar less than the system filling pres
-
sure) according to the calculation to the rele-
vant standards (EN 12828).