Maintenance; Filters; Rotor; Electrical Motors - Dehutech 2400 User Manual

Maintenance

NOTE ! With all maintenance and service of the
dehumidifier:
• Switch off the dehumidifier approximately
15 minutes prior to opening any service
panel, allowing the heater to cool down.
• Disconnect the dehumidifier from main
electrical supply by turning the external
switch to the off position.
The maintenance intervals for the dehumidifier
depend on the surrounding environment and
installation site. Recommended maintenance
intervals could therefore differ from one instal-
lation to another. Incorrect maintenance and
service may result in reduced dehumidification
capacity.

Filters

The dehumidifier is equipped with two separate
filterbanks, one for the process air and the other
for the reactivation air. The filters are positioned
at the respective inlets and will clean the air
prior to entering the dehumidifier.
Intervals for cleaning or replacement of the
filters will be determined by the amount of dust
and particles in the air at the installation site.
We recommend that the filters are checked at
least once a month.
The unit can be equipped with differential pres-
sure measurement for checking the pressure
drop over the filters.
Never operate the dehumidifier without the fil-
ters, as the rotor can be damaged by dust.

Rotor

The rotor is maintenance free. However should
it be necessary to clean the rotor careful use of
compressed air should be the first choice. With
severe contamination the rotor can be washed
with water.
Subject to change without notice
Cleaning with water is no routine matter, please
contact DehuTech AB or local distributor prior
to this procedure.
Check the rotor bearing and the rotor surface
once a year.

Electrical motors

The electrical motors are equipped with ball
bearings. The bearings are designed to last the
life of the motor and therefore no maintenance is
required.
Check the motors once a year for any abnormal
sound.

Heater

The reactivation electric heater does not need
maintenance, but should be checked twice a year
for any mechanical damage to the heating rods.

Rotor drive belt

Check the belt tensioning at regular intervals.
The tensioning is maintained constantly by the
belt tension device, and should not need to be
adjusted during normal operation.

Sealings

Check the sealings at regular intervals for leak-
age, damage and dust.
9
DehuTech 2400