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MAINTENANCE
Enclosure Air Filter Replacement – NEMA 12 Enclosures
Frame Sizes R5/R6 – Enclosure Inlet Air Filter
This procedure applies to disconnect configurations in R5 and R6 frame sizes with NEMA 12
enclosures. This filter is located at the bottom of the enclosure. Use the following procedure to
check and replace filters.
1. On the enclosure, remove the screw holding the filter bracket in place.
2. Slide the filter bracket forward until the hooks on the bracket clear the slots on the
enclosure base. This step allows the filter and bracket to drop free from the enclosure.
Back of Enclosure
Slot
Hook
Mounting
Screw
3. Lift the filter out of the filter bracket and replace as appropriate.
4. With the filter in the filter bracket, align the hooks on the bracket with the slots in the
enclosure base, and press the hooks up into the slots.
5. Slide the filter bracket back, making sure that the hooks catch on the enclosure.
6. Replace the mounting screw. Tighten until the gasket on the bracket is about 50%
compressed.
Frame Sizes R7/R8 – Nema 12 Enclosure Inlet Air Filter
The inlet air filter for the R7/R8 NEMA 12 enclosure is
located in the enclosure front door.
1. While holding the top of the filter frame, pull up on
the bottom of the frame. The filter frame will slide up
approximately ¾ inch and can then safely removed
by tilting away from the cabinet and lifting up.
16
Enclosure
Filter Bracket
PC00015
PC00010
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