NEC NP-M311W - Installation To Extension Columns; Ceiling Plate

ISSUED: 10-01-10 SHEET #: 056-9034-4 07-29-11
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Installation to Extension Column / Ceiling Plate
NOTE: Refertoaccompanyinginstructionswithceilingplates(soldseparately)forinstallingthesemodelsto
ceiling.
Screwprojectormountassembly(A)ontoextensioncolumnasshownin gure 1.1.Tightenswivelstopscrew
againstextensioncolumn,ushmounttubeorreducerusing4mmsecurityallenwrench(B)asshowningure
1.2.
NOTE: Swivelstopscrewisusedtojamagainstthreadsofextensioncolumn,ushmounttubeorreducerto
preventanyexcessmovementofprojectormountassembly(A).Donotovertightenscrew;overtighteningscrew
willdamagethreadsmakingitdifculttoseparateproducts.
Skip to step 5.
1
g. 1.1
g. 1.2
A
1-1/2"EXTENSIONCOLUMN
(SOLDSEPARATELY)
(ULLISTEDEXTORAECSERIES)
ARROWINDICATES
FRONTOFMOUNT
SWIVELSTOPSCREW
CMJ455
(SOLDSEPARATELY)