ACH550 Installation, Operation and Maintenance Manual 89
ACH550-PCR/PDR
Maintenance
Maintenance intervals
If installed in an appropriate environment, the drive requires very little maintenance.
This table lists the routine maintenance intervals recommended by ABB for ACH550
enclosures in addition to the intervals on page 31.
Enclosure air filter replacement – UL Type / NEMA 12 hinged door wall mount
enclosures
Filter material
This procedure applies to drive with input 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.
Maintenance Configuration Interval Instruction
Check/replace hinged
door wall mount
enclosure inlet air filter
Hinged door wall
mount UL Type /
NEMA 12
enclosures
Check every 3
months. Replace
as needed.
Enclosure air filter replacement –
UL Type / NEMA 12 hinged door
wall mount enclosures on
page 89.
Check/replace floor
mount enclosure inlet
air filter
Floor mount UL
Type / NEMA 12
enclosures
Check every 3
months. Replace
as needed.
See Maintenance on page 34 and
Enclosure air filter replacement –
UL Type / NEMA 12 hinged door
wall mount enclosures on page 89.
Check/replace NEMA
3R enclosure air filters
UL Type / NEMA
3R enclosures -
PX3R-5 and
higher
Check every 3
months. Replace
as needed.
See PX3R dimensional
information.
Check/replace floor
mount enclosure
exhaust air filter.
Floor mount UL
Type / NEMA 12
enclosures
Check every 6
months. Replace
as needed.
See Maintenance on page 35 and
Enclosure air filter replacement –
UL Type / NEMA 12 hinged door
wall mount enclosures on page 89.
Material Filter Type
American Air Filter (358-35-06A-12A) Polykleon White 12.7 mm x 152.4 mm x 304.6 mm stk
Enclosure
Mounting
Screw
Hook
Filter Bracket
Slot
Back of Enclosure
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