5.0 Maintenance
5.1
Cleaning the Unit
1. In addition to removing odours, providing fresh
air and recovering heat, this unit extracts
airborne impurities such as dust, dirt and grease.
These gradually build up and detract from the
efficiency and appearance of the unit.
2. To ensure optimum performance, the unit
should be cleaned every 3 to 6 months or at
periods determined by the level of contamination
experienced and according to the following
procedure.
3. Isolate the mains power supply.
4. Undo the two grille securing screws and
remove the grille (Fig. 8).
5. Remove the filter from rear of grille.
6. Slide out the heat exchanger (Fig 8).
7. Wash the grille, filter and heat exchanger in
warm water using a mild detergent and dry
thoroughly.
CAUTION:
Keep water away from all electrical
components and wiring within the unit.
8. If the filter cannot be cleaned, a replacement
is necessary (ref: 370402).
9. Reassemble in reverse order ensuring the
filter and heat exchanger are seated correctly.
10. Switch power supply on and check the
operation of the unit
5.2
Summer Operation
During summer the heat exchanger can be
replaced with the provided divider board.
The unit will then provide positive cooling
to the room. Remove the heat exchanger
as described in section 5.1. Slide the
divider board in its place and replace grille
securing it with the two screws.
Fig. 8
