4
Vallox
121
MC
© VALLOX • We reserve the right to make changes without prior notice.
What the units include can vary depending on the sales area.
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During the heating season, humidity of extract air condenses into
condensing water. Water formation can be abundant in new buildings
or if ventilation is low compared to the humidity build-up caused by
the residents. Condensing water needs to flow out from the ventilation
unit without hindrance. In carrying out maintenance, for instance in
autumn before the beginning of the heating season, make sure that the
condensing water outlet (L) in the bottom tank is not clogged. You can
check it by pouring a little water in the tank. Clean if needed. Do not
let water flow into electrical devices.
First remove the HR cell (D) from the unit by pulling it carefully. Remove
the NTC sensor from the cover lid (C) by pulling. Open the fastening
screws of the cover lid (C) and remove the lid. Open the fastening
screw (G) of the post-heating radiator, lift the post-heating radiator out
of its holder and take it out through the cover lid. Assembling takes
place in the opposite order.
Condensing water outlet
MAINTENANCE INSTRUCTIONS
Replacing post-heating
radiator
