STIEBEL ELTRON LWZ 404 SOL Installation Manual

ENGLISH
www.stiebel-eltron.com LWZ304-404 SOL | 45
INSTALLATION
Maintenance and cleaning
10. Maintenance and cleaning
WARNING ELECTROCUTION
 Prior to commencing any service or cleaning work,
isolate the appliance across all poles from the
power supply.
10.1 Cleaning the air/air heat exchanger
Check and clean the cross-countercurrent heat exchanger at least
once a year.
1.
2.
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1 Upper front panel
2 Cross-countercurrent heat exchanger
 Open the door of the function module (r.h. half of the
appliance).
 Remove the fascia fitted to the centre of the appliance.
 Remove the upper front panel.
 If the contamination level is modest, clean the cross-coun-
tercurrent heat exchanger with the brush attachment of a
vacuum cleaner.
 If more severe contamination is visible and extends into the
cross-countercurrent heat exchanger, clean it as described in
the following.
 Pull out the cross-countercurrent heat exchanger.
 Clean the cross-countercurrent heat exchanger with warm
water. Never use solvents.
 Afterwards flush the cross-countercurrent heat exchanger
with warm water.
 Let the cross-countercurrent heat exchanger dry out.
10.2 Cleaning the outdoor air filter
The outdoor air filter is fitted downstream of the cross-counter-
current heat exchanger.
1.
2.
3.
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1 Upper front panel
2 Cross-countercurrent heat exchanger
3 Outdoor air filter cassette
 Pull out the cross-countercurrent heat exchanger.
 Grasp the outdoor air filter cassette by the grip holes and
remove it.
 Remove the filter from the outdoor air filter cassette, clean it,
and insert a new filter if required.
 Refit the outdoor air filter cassette in the appliance.
 Refit the cross-countercurrent heat exchanger in the
appliance.
 Refit the upper front panel and the fascia.
10.3 Cleaning the evaporator fins
Check the evaporator fins for dirt from time to time.
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1
1 Defrost hose (hose of the pressure differential switch for cap-
turing the end of defrosting)
Undo the screws and remove the central front panel.
 Remove the defrost hoses from the guide grooves in the EPS
cover.
 Pull the now accessible EPS cover 6 to 8cm to the right.
 Tilt the top of the EPS cover towards you from the appliance.
 Pull the EPS cover upwards to remove.

STIEBEL ELTRON LWZ 404 SOL Specifications

General

Brand	STIEBEL ELTRON
Model	LWZ 404 SOL
Category	Fan
Language	English