Itho Daalderop 03-00398, Инструкция по установке и использованию

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6. Inspection & Maintenance
6.1. Inspection
Correct functioning of the ventilation system, efficiency
and service life can only be guaranteed if the system is
inspected and maintained in accordance with the
regulations below. These regulations are based on
normal operating conditions.
6.1.1. Ventilation unit inspection
The ventilation unit must remain accessible for
maintenance at all times. The ventilation unit requires
little maintenance. Periodically clean the plastic
exterior of the unit with a slightly damp cloth.
a) Regularly inspect the unit for abnormal
noises.
b) Regularly check that the unit responds to the
hand controls.
c) Check regularly that the unit responds to the RH
sensor.
d) Check regularly that the unit responds to the
connected sensors.
e) Inspect the fan annually.
f) Contact an installer if the appliance produces
abnormal noises, no longer responds or if cleaning
is necessary during inspection. The cleaning of the
impeller may only be carried out by an installer.
ä Attention
!
When the ventilation system is operating under
severe operating conditions or in an extra polluted
environment, additional maintenance may be
necessary.