18
Subject to change without notice | 83057000jUK – Translation of the original operating manual | ait-deutschland GmbH
►
When selecting the antifreeze agent, it must be
ensured that it is compatible with the following
materials:
●
Brass (CW602N and CW614N)
●
Stainless steel (AISI304, AISI316 and
AISI316L)
●
Copper (Cu-DHP CW024A - EN1652)
●
Cast iron (EN-GJL-150)
●
Composite (PES 30% GF)
●
EPDM (ethylene propylene diene rubber)
● PTFE (Polytetrafluoroethylene)
● FKM (fluororubber)
If an antifreeze agent is not compatible with one
of these materials, it may not be used.
Antifreeze agents from our product range are
safe with regard to our units and the accessories
purchased from us and guarantee compatibility
with the listed materials.
►
Pressure losses must be observed when selec-
ting the antifreeze agent.
►
The antifreeze agent that is selected and used
must comply with the specifications and require
-
ments of the local authorities and water manage-
ment authorities.
WARNING
Methanol and ethanol can give off flam
-
mable and explosive gases. Therefore, the
safety provisions for the anti-freeze must
be noted and followed!
The hazard markings of all anti-freezes
used must be noted and the relevant safety
provisions must be followed.
► Make sure that the mixing ratio of water and antif
-
reeze agent meets the required minimum antifree-
ze temperature in the heat source.
“Technical data / Scope of supply“, from
page 24
►
For operation of the heat source with water-
antifreeze mixture, ensure that the water used
fulfils the quality specifications of the heating
water side.
“Heating water quality”, from page 19
Drain pipe of the safety valve is connected.
Room is ventilated.
1. Flush the heat source system thoroughly.
2. Mix antifreeze with water thoroughly with the
required ratio, before adding to the heat source.
3.
Check the concentration of the water-antifreeze
mixture.
4. Fill the heat source with the water-antifreeze
mixture.
Fill until the system is air-free.
5. Fill the unit via the ball valves in the module box.
7.3 Vent the circulation pump of
the heat source
The front panel of the module box is unscrewed.
NOTE
The figure shows the unit variant with cooling.
In the unit variant without cooling the circula-
tion pump is located in the same place.
1. Place vessel for collecting discharging liquid
under the outlet.
2.
Undo deflating screw
(
①
) in the middle of the cir-
culation pump of the heat source.
NOTE
The hose connectors are not part of the
scope of delivery with all KFE ball valves.
3. Wait until liquid is discharged uniformly.
4.
Screw the deflating screw
(
①
) of the circulation
pump of the heat source back on tightly.
5. Screw the front panel of the module box.
6. Dispose of collected liquid according to the local
regulations.
7. Set system pressure to 1 bar.