1 Connection for control
2 Connection for power
compressor 3~PE
3 N/PE
4 Phase sequence relay
NOTE.
The control element of the heat and heat pump
regulator can be a connection with a computer
or network using an network cable designed for
such pruposes, thus allowing the heating and
heat pump regulator to be controlled remotely.
If such a connection is desired, install a screened
network cable (category 6, with RJ-45 plug)
through the unit when installing the connections
and run it through the front facade of the unit,
parallel to the already-present heating and heat
pump regulator control cable.
Close the switch cabinet inside the device after fin-
ishing all the electrical work...
Close the front panel of the device if no further in-
stallation work is to be carried out directly after-
wards.
12
Subject to change without notice | 83050900dUK – Translation into English of the original German operating manual | ait-deutschland GmbH
Rinsing, Filling and Ventilating
the System
ATTENTION
The system must be absolutely free from air be-
fore commissioning.
RINSING, FILLING AND BLEEDING THE HEAT SOURCE
Dirt and deposits in the heat source can lead to malfunc-
tions.
ATTENTION.
Before flushing and filling the heat source the
drain pipe of the safety valve must be connected
- Important: do not discharge into the drains
(anti-freeze mixture)!.
NOTE
The following antifreezes are approved for the
brine circuit:
•
Monoethylene glycol
ATTENTION
Ensure that the (pipe) materials, seals and other
components used on site are made of materials
that are compatible with the antifreeze used!
Rinse heat source system thoroughly...
Thoroughly mix the antifreeze available as an acces-
sory with water in the required ratio. Only fill the
heat source after mixing...
ATTENTION
The type amd concentration of the antifreeze in
the water must have the value indicated for your
device type.
Overview "Technical Data/Scope of Supply",
section "Heat Source".
Check the concentration of the antifreeze in the
mixture...
Fill the heat source with antifreeze mixture...
Bleed the heat source.
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