10
*
Never operate the indoor unit without the air filter.
The air filter prevents the plate fin exchanger of the
indoor unit from becoming dirty and the unit’s per-
formance from being adversely affected.
We recommend concluding a maintenance agree-
ment with a company who specialises in this type of
work.
This will guarantee that the system operates safely
at all times!
Regular care and the observation of a number of basic
rules will ensure the units’ long service life and reliable
operation.
Keep the units free of dirt and other deposits.
Clean the units with a damp cloth.
Do not expose the units to a direct stream of water.
Do not use an abrasive cleaning agent or one that
contains solvent.
If the units are extremely dirty, only use suitable clean-
ing materials.
Maintenance and Service
*
Before any work on the units is performed, they
must be disconnected from the power supply and
secured against being inadvertently switched on!
System Structure
The indoor unit is connected to the outdoor unit with re-
frigerant pipes.
Outdoor unit
Refrigerant pipes
Outdoors
Indoors
Condenser fan
Shut-off valve
Indoor unit
Cleaning the filters
Clean both air intake filters at intervals of no longer than
two weeks. If the air is extremely dirty, shorten this time-
frame accordingly.
To clean the air filters, proceed as follows:
1. Open the front of the unit by pushing the grille up
and locking it into place.
2. Lift the filters up and then
pull them out.
3. Clean the filters using a
standard vacuum cleaner.
4. Extreme dirt can be carefully removed with luke-
warm water.
Then let the filters air dry.
5. Replace the filters and close the grille.
Before and after the operating season, check
whether the diameter of the condensation pipes has
become smaller as a result of dirt.
If so, they must be cleaned.
Clean the air filters of the indoor unit at regular inter-
vals, more often if necessary, as described on this
page.
Combinations
Cooling and heating
RXW 350
RXW 480
RKS 435 H
z
RKS 448 H
z
