2N Helios IP Audio Kit Installation Manual page 22

PCB mounting (for Part No. 9154101 only)
Use 4–6 distance columns and proper screws (not included in the delivery) to mount
the PCB to the support. Fix the distance columns as shown in the figure.
Caution
The warranty does not apply to the product defects and failures arisen
as a result of improper mounting (in contradiction herewith). The
manufacturer is neither liable for damage caused by theft within an area
that is accessible after the attached electric lock is switched. The
product is not designed as a burglar protection device except when
used in combination with a standard lock, which has the security
function.
When the proper mounting instructions are not met, water might get in
and destroy the electronics. It is because the intercom circuits are under
continuous voltage and water infiltration causes an electro-chemical
reaction. The manufacturer's warranty shall be void for products
damaged in this way!
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