88
Maintenance
Maintenance details
-
Turn the unit up side down and
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wear and tear, pollution and any
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vacuum cleaner. In the case
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performed carefully in relation to the
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(8) the non return valve (12)
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return valve entire circumference
closes / seals completely. The valve
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from fully open to fully closed.
Replace the non return valve if the
valve does not seal properly. Follow
the instructions supplied with the
new part.
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the upper casing (10) and
exchanger.
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if necessary.
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that the fan impeller is also polluted.
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from the upper tray and the venturi.
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the fan parts.
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order.
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pollution. Clean it, if necessary, with
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Avoid any pollution falling down.
NOTE: TOP-FLUSHING THE
EXCHANGER WITH WATER IS NOT
ALLOWED.
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order.
During installation pay attention to
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11
8
9
10
12
13
12
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