Sealing air leaks – ETC Unison DRd Dimming Rack Enclosure User Manual
Page 56
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DRd Enclosure Installation Manual
Sealing Air Leaks
After you have attached all the conduit to the enclosure and connected all wiring, you must
seal any air leaks in the enclosure that was created during the installation process. ETC
recommends use of urethane aerosol foam to fill air gaps in conduit fittings.
•
Seal all conduit access holes.
•
Completely cover all conduit openings with fiche paper and/or urethane aerosol foam
or duct seal.
•
Seal any air gaps caused by bent access panels.
•
Fill in any gaps inside partially filled wiring conduit.
•
Fill in other gaps or holes in the cabinet created during installation.
•
Any enclosures that are installed side - by - side (bolted together) should only have
minimal airflow between them.
C A U T I O N :
Air leaks can cause the DRd to overheat during operation and shut down. Air leaks
can also cause a DRd to shut down via an overtemp error, meaning that too little
air is flowing through the front of the enclosure where it is needed to cool the
dimmers.
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