5
HSDV – Roof Fan Attenuator
Installation and Operating Instructions
EN
3.4 Fasten the external noise attenuation casing to the roof fan with the self-drilling screws
.
3.5 Check all screws for tight fit!
4 .1 Maintenance and servicing
The roof fan attenuators are generally maintenance-free. However, any necessary maintenance work must be carried
out by authorised qualified personnel cf. chapter 1.6!
The following must be checked:
• secure attachment of roof fan attenuator
• deposits of dirt
• damage
• screw connections
4 .2 Standstill and disposal
The generally applicable occupational safety and accident prevention regulations must be observed!
Use suitable lifting tools and fastening devices to dismantle the roof fan attenuator.
Dispose of the individual components according to the applicable laws and regulations.
CHAPTER 4
MAINTENANCE AND
SERVICING
nmr
Fig . 7
