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Model 1001A Installation and Operation Manual
Optional Enclosure Protection Vent
All confi gurations must be mounted in a true vertical position.
The vent must be located to provide access for routine testing
of the vent's fl apper assembly. A minimum 8" clearance is
required below the vent opening.
1. Determine the vent's mounting confi guration, i.e.,
-00 vertical mount or -90 side mount. See photos below.
2. Determine vent location and layout vent mounting hole on
the protected enclosure (as determined on page 6, "Getting
Started").
3. Using a 0.875" hole saw or 1/2" conduit punch, drill and
deburr the enclosure protection vent mounting hole.
4. Remove the hub mounting nut from the vent hub and place
the hub, with O-ring intact, through the mounting hole. The
O-ring must be on the outside of the protected enclosure.
5. Reinstall the hub mounting nut to the mounting hub from
inside the protected enclosure and tighten.
EPV - 1 - SA - 00
Vertical Mount
Hardware Mounting
EPV - 1 - SA - 90
Side Mount
Warning Nameplate(s)
An EWN (enclosure warning nameplate) must be located in a
prominent position on or near all enclosure accesses (doors
and covers).
One (1) EWN is provided with each system, located in the
manila envelope taped to the mounting fl ange of the system.
Additional EWNs are available from Pepperl+Fuchs.
All EWNs provide labeled spaces allowing the customer to
mark the protected enclosure with: 1) a T Code (temperature
identifi cation number), 2) Class, Group and Division of
surrounding area, and 3) NFPA pressurization Type X, Y or Z,
as may be required by plant and local codes and is required by
NFPA 496.
An ETW (enclosure temperature warning nameplate) must
be located in a prominent position on or near all enclosure
accesses (doors and covers) when the temperature of an
internal component exceeds 80 percent of the ignition
temperature of the fl ammable vapor, gas or dust involved.
The ETW warns the operator to deenergize all equipment for a
specifi ed length of time, allowing the protected equipment to
cool before opening the protected enclosure. The length of time
required is determined by the customer and can be factory or
fi eld engraved.
All EWNs and ETWs are furnished with an adhesive back, but
should also be riveted or screwed to the protected enclosure.
Enclosure warning nameplate - Class I
Enclosure warning nameplate - Class II
Enclosure temperature warning nameplate
11
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