2N Door intercom 2N Helios - Manual, 1322 v3.0 - Manual (Page 39)

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2.7 Mounting - Completion
1. Remember to seal the 2N ® Helios IP cable passage hole properly to avoid moisture
in-leak and damage to electronics due to condensation.
2. Make sure that the wires inside 2N ® Helios IP are not squeezed and insert the plastic
top cover (a transparent plastic mould) carefully making its contacts plug into the
electronics board connectors. Push the plastic cover into position moderately. If the
part swings over an obstacle or one corner is higher than the others, remove the
cover and find the obstacle. Then tighten the corner screws properly.
3. Mounting the metal cover follow the steps included in the subsection dedicated to
name plate removal. Make sure that the cover fits well and is perfectly flat. If its
bottom part is loose, the mounting wall is probably uneven. Support the corners to
avoid 2N
® Helios IP bending.
Caution
 An improper mounting may significantly deteriorate the button function.
 A poor outdoor mounting may cause water in-leak and damage to the
electronics.
Most Frequent Mounting Errors
For illustration, a part of the plastic cover is removed in the figures below to reveal the
sealed loudspeaker and the cover–seal touch point. The cross section plane is marked
white for better orientation.
Poorly tightened screw
(a squeezed wire has the same
effect)
WRONG
Gap between plastic cover and
loudspeaker seal
- water may leak in and
damage electronics