Maintenance - Vent-Axia HR25H Installation And Wiring Instructions

Removable Grille
Grille Surround
Securing Screws
Heat Exchanger
Recess
Heat Exchanger
Filter
Divider Board
Wiring Tunnel
Divider Board Slot

4.0 Maintenance

4.1
Apart from removing odours, providing fresh air
and recovering heat, this unit extracts airborne
impurities such as dust, dirt and grease. These
gradually build up and diminish from the
efficiency and detract from the appearance of
the unit.
To maintain efficiency the unit should be
Fig. 44
cleaned at least every six months, or more
regularly if a high level of contamination is
experienced.
1. Isolate the mains power supply.
2. Unclip the removable grille from the unit and
remove filter (Fig. 44).
3. Loosen the two securing screws and remove
the grille surround (Fig. 45).
4. Remove the divider board and slide out the
heat exchanger (Fig. 45 & 46).
5. Wash the grille, surround, filter and heat
Fig. 45
exchanger in warm water using a mild detergent
and dry thoroughly.
NOTE: Keep water away from all electrical
components and wiring within the unit.
If it is not possible to fully clean the filter, it must
be replaced (see short parts list on page 15 for
part number).
6. Reassemble in reverse order ensuring the
divider board seals against the heat exchanger.
NOTE: Follow the 'Inside/Outside' instruction
labels on the heat exchanger.
The recess in the heat exchanger outer wall
must be aligned with the wiring tunnel on the
unit to ensure the divider board slot is
Fig. 46
vertical (Fig. 46 & 47).
7. Switch the power supply on and check the
operation of the unit.
Fig. 47
Cleaning the Unit (all models)
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