Fan control
When the hygrostat starts the
dehumidifier, the fan(s) is/are
switched on together with the
compressor.
If constant ventilation is required,
i.e. independent of dehumidifica-
tion, a jumper can be connected
between terminals 25 and 26.
The fan or fans then operate in a
continuous mode.
Defrosting
At room temperatures below 20°C,
the evaporator will start to frost
after a short time.
When the evaporator sensor
registers a temperature below 5°C
on the evaporator surface, the unit
continues to operate for 30 min-
utes in dehumidification mode.
After lapse of this time, the com-
pressor stops and passive defrost-
ing starts in that the fan or fans
slowly blow room air over the
evaporator and gradually defrost
the same in the process.
When the evaporator sensor regis-
ters a temperature above 5°C, the
compressor is switched on again.
Safety circuit
If the temperature at the conden-
ser should exceed 55°C (e.g. due
to fan failure or excessive room
temperature (above 36°C)), the
compressor automatically stops to
avoid being overloaded.
The compressor restarts automati-
cally after 45 minutes.
The drop symbol in the display
flashes!
■
Observe regular care and main-
tenance intervals.
■
Depending on the particular
operating conditions, the units
should be tested by an expert
for reliable operation as neces-
sary, but at least once a year.
■
Keep the unit free of dust and
other deposits.
■
If the unit should become
fouled, it can be cleaned with
a vacuum cleaner, whereby the
condenser should be thorough-
ly cleaned.
■
If the evaporator gills are
heavily fouled, they should be
cleaned carefully with soapy
water.
■
Do not use a direct water jet
e.g. high pressure cleaner, etc.
■
Do not use caustic cleaning
agents or those containing
solvents.
■
Only use suitable cleaning
agents to remove heavy foul-
ing.
Care and maintenance
All moving parts are provided with
low-maintenance permanent lubri-
cation. The refrigeration system is
hermetically sealed and must only
be repaired by authorised specialist
companies.
NOTE
Regular care and maintenance
is a basic precondition for a
long useful life and trouble-
free operation of the unit.
Cleaning the suction filter
The suction filter should be
checked at regular intervals and
cleaned if necessary.
The filter is fixed in a holder be-
hind the suction openings.
■
A lightly clogged filter can be
cleaned by carefully blowing out
or using suction.
■
A heavily clogged filter can be
washed in a luke warm (maxi-
mum 40°C) soap solution. Sub-
sequently rinse thoroughly with
clear water and allow to dry!
■
It must be ensured that the
dust filter is completely dry and
undamaged prior to refitting.
■
The units must only be operated
with the dust filter fitted.
Cleaning the condensate wa-
ter collecting tray
To ensure that the produced
condensate water is able to drain
freely, the condensate collect-
ing tray and the outlet must be
cleaned at regular intervals.
NOTE
Heavily clogged dust filters
must be replaced with new
ones.
Only original spare parts must
be used.
ATTENTION
Regularly check the suction
and blow out openings as well
as filters for clogging.
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