26 - EN
EN - 27
5.2 Maintenance of the casing
Inspect the unit casing at least once every 4 years.
1
2
3
Remove the front cover as instructed
in the chapter procedure for opening
the unit:
■
Open the semi-transparent visor;
■
Change the unit to SERVICE MODE;
■
Disconnect the power to the unit;
■
Remove the 3 screws of the front
cover;
■
Remove the front cover.
Perform the next checks:
■
Check the seals for damage;
■
Check the inside and outside for
dirt and damage;
■
Check the duct connections for dirt
and damage.
Treat any signs of corrosion and other
damage directly and appropriately.
Do not treat the front foam
and the EPP parts (black hard
parts with structure) with
soap. Soap will destroy the
air- and water thightness of
the material.
5.3 Maintenance of the heat exchanger
Inspect the heat exchanger at least once every 4 years.
1
2
3
Remove the front cover as instructed
in the chapter procedure for opening
the unit:
■
Open the semi-transparent visor;
■
Change the unit to SERVICE MODE;
■
Disconnect the power to the unit;
■
Remove the 3 screws of the front
cover;
■
Remove the front cover.
Remove the heat exchanger:
■
Pull the strap of the heat exchanger.
Do not cut the strap.
The strap is necessary to pull
out the heat exchanger from
the unit.
You can only remove the heat
exchanger without damaging the unit
when the unit is in SERVICE MODE.
During assembly: Place the
bottom of the heat exchanger
in the guide rails of the unit.
Make sure the red bottom
plate is on the front side of the
heat exchanger.
Inspect and, if necessary, clean the
heat exchanger.
■
Use water to remove dirt and dust:
a. Submerge the heat exchanger
several times in hot water (max.
40°C).
b. Rinse the heat exchanger with
clean hot tap water (max. 40°C).
c. Clasp the heat exchanger
between both hands (on the
solid side surfaces) and shake
the excess water from the heat
exchanger.
Do not use aggressive
cleaning agents or solvents.
These may damage the air
seal of the heat exchanger.
