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7.6
Jalousie damper
Jalousie flaps are equipped with polyamid-bearing-
sleeves. These need not be maintained (do not put oil or
grease on them). Please pay attention that the jalousie
flaps must be opened before switching on the ventilator
and that the ventilator must be switched off before the
closing of the jalousie flaps. If it is operated by hand the
housing part might be deformed. Impact loads f.ex. by
unsecured jalousie flaps lead to a destruction of housing
parts.
7.7
Doors and door locks
Doors and door locks must be checked whether they can
be locked and closed. Lubricate the movable parts.
7.7.1
Interception safety
Check the interception safety devices of the doors at
pressure side (release chains only after standstill of the
ventilators)
7.8
Silencer
To avoid fan noise being transferred via the duct system,
silencers should be installed both on supply and extract
air.
To avoid noise being transferred between rooms via the
duct system and also to reduce noise from the duct
system itself, installation of silencers before every inlet
diffuser is recommended.
The links of the sound absorbers have to be cleaned with
vacuum cleaners (depending on the pollution). Dirty
perforated sheets reduce the absorption qualities.
7.9
Internal lightening
Lights are wired on external terminal boxes. The wiring of
the terminal boxes between each other resp. from
component to component must be made on site.
Radiated heat in case of the medium steam resp. hot
water might lead to the damage of the lights and the
cables. Standstill damages in case of opening heating
valves
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