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Subject to change without notice | 83050700fUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Installing the hydraulic
connections
NOTE.
All materials used in the heat source circuit
(pipes, connections, sealing material…) must be
corrosion resistant and suitable for the ground-
water quality. Use suitable plastics or stainless
steel.
IMPORTANT
Connect the unit to the heating circuit accord-
ing to the hydraulic diagram for the respective
model.
“Hydraulic connection” instructions.
IMPORTANT
The heat source system must be designed
according to the specifications of the planning
manual.
Planning manual and “Hydraulic connection”
documents.
NOTE.
Check to make sure that the cross-section and
lengths of the pipes for the heating circuit are
adequately dimensioned. The free compression
of the circulation pumps must be able to deliver
at least the minimum throughput required for
your model.
“Technical data
/Scope of delivery” overview,
“Heat source” and “Heating circuit” sections.
NOTE:
Check whether the cross-sections and lengths
of the heat source pipes are adequately dimen-
sioned.
NOTE:
The heat source pump must be designed as a
constant speed pump. It must at least produce
the minimum throughput required for your unit
model. The heat source pump must be designed
by performing a pipe network calculation.
“Technical data/Scope of delivery” overview,
“Heat source” sections..
IMPORTANT
Please note that the designed heat source pump
may only be used within its pump characteristic
curve!
IMPORTANT
When installing the connections, always secure
the connections on the unit against twisting, in
order to prevent damage to the copper pipes
inside the unit.
NOTE:
Install the dirt trap included in the scope of
delivery in the well shaft (heat source inlet)
The connections for the heating circuit or the heat
source are located at the rear of the unit:
For position of the connections, please refer
to the dimensioned drawing for the respective
model.
Install shut-off devices for the heating water outlet
(flow) and heating water inlet (return) on the heat
pump side…
Install shut-off devices for the heat source inlet and
heat source outlet on the heat pump side…
NOTE.
By installing the shut-off devices, the evaporator
and condenser of the heat pump can be flushed,
if necessary.
Thoroughly flush the heating circuit and heat source
circuit before connecting to the unit…
NOTE.
Dirt and deposits in the heating circuit and heat
source can cause malfunctions.
Connect the fixed pipes of the heating circuit with
the corresponding connections at the rear of the
unit. Use vibration isolators and elbow unions (size
2 only)…
Vibration isolators must be installed to prevent
structurally borne sound transfer
to the fixed pip-
ing.
Vibration isolators for the heating circuit are
included with the unit; they have a zinced mesh and
are marked in colour.
