3-18 ACH550-PCR/PDR User’s Manual
Maintenance
Enclosure air filter replacement – UL Type / NEMA 12 hinged door wall
mount enclosures
This procedure applies to drive with disconnect configurations in UL Type / NEMA 12
hinged door wall mount 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.
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.
Enclosure air filter replacement – UL Type / NEMA 12 floor mount
enclosures
Filter material
Note: When installing the filter media, the white side must face the outside of the
cabinet and the colored side must face the inside of the cabinet. Refer to the
ACH550-UH User’s Manual on page 1-293 for installation instructions.
Enclosure Type Inlet (door) Outlet (roof)
UL Type / NEMA 12 3AUA0000006723 (qty 1) 3AUA0000006722 (qty 2)
Enclosure
Mounting
Screw
Hook
Filter Bracket
Slot
Back of Enclosure
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