14
IMPORTANT!
Both outside air intake and exhaust ducts should be covered with a layer of thermal
insulation of sufficient thickness to prevent condensation of humidity on their walls due to difference
between outdoor and indoor air temperatures.
IMPORTANT!
Avoid using duct grille with dense mesh – it can quickly become clogged with dust and
will prevent fresh air supply. The Unit is equipped with supply air filter to trap dust and insects.
7.4.
Installing the maintenance and service hatch
When installing the Unit ensure enough space for its maintenance. Suspended ceiling in the room
should be installed at least 30 mm from the lowest point of the Unit housing (refer to section 7.2
"Installation incline").
Maintenance and service hatch installed in the ceiling should be of suitable size to allow convenient
access to all Unit components. At least 100 mm distance should be ensured from every edge of the
Unit.
Figure 4. Installation of maintenance and service hatch
IMPORTANT!
Owner of the Unit shall ensure the possibility to perform Unit maintenance. If there is
not enough space for Unit maintenance, the manufacturer's representative is entitled to refuse to
perform maintenance or repairs.
