Heat exchanger air side (evaporator)
-
Accidental contact with the exchanger fins can cause
cuts: wear protective gloves.
The evaporator should ensure maximum heat exchange,
so the surface must be free of dirt build-up and contam
-
ination.
It is recommended a quarterly cleaning of the coils, as
the minimum.
The cleaning frequency should be increased depending
on the level of dirt/dust accumulation and the environment
(e.g., coastal areas with chlorides and salts) or industrial
areas with aggressive substances.
Shut down periods
At times when the unit is not used for more than a week,
the evaporator should be completely cleaned in accord
-
ance with the procedure for cleaning.
Cleaning procedure
Compared to tube and fin heat exchangers, these evap
-
orators tend to accumulate more dirt on the outside and
less on the inside, making them easier to clean.
Follow the steps below for proper cleaning.
Remove surface debris
Remove surface dirt, leaves, fibres, etc. with a vacuum
cleaner (preferably with a brush or other soft accessory
instead of a metal tube), compressed air blown from the
inside, and/or a soft bristle brush. Do not bump or scratch
the evaporator.
Rinse
Rinse only with water. Do not use chemical agents to
clean the evaporators, as this could lead to corrosion.
Hose off gently, preferably from the inside-out and top to
bottom, running the water through every fin passage until
it comes out clean.
The fins are stronger than athers coil fins but still need
to be handled with care. Do not hit the coil with the hose.
We do not recommend using a pressure washer to clean
the coil due to the possibility of damage. Warranty claims
in connection with cleaning damage, in particular caused
by high-pressure cleaners or corrosion caused by chemi
-
cal cleaning agents for evaporators, will be rejected.
WARNING
-
Coatings applied on site are not recommended for heat
exchangers.
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4 221 546 / 00
MaInTEnanCE
