ABB ACH550-UH HVAC Installation, Operation & Maintenance Manual page 6

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Note: Frame sizes R7 and R8 have mounting holes inside the enclosure base.
Where it is not possible to use either mounting hole at the back of the base, use an
L-bracket at the top of the enclosure to secure the cabinet to a wall or to the back of
another enclosure. Bolt the L-bracket to the enclosure using the lifting lug bolt hole
on the top of the enclosure.
2. Drill holes of appropriate size in the mounting location.
3. Remove front cover
R1...R6, UL type 1
1. Remove the control panel, if attached.
2. Loosen the captive screw at the top.
3. Pull near the top to remove the cover.
R1...R6, UL type 12
1. If hood is present: Remove screws (2) holding the hood in place.
2. If hood is present: Slide hood up and off of the cover.
3. Loosen the captive screws around the edge of the cover.
4. Remove the cover.
R7...R8, Cabinet Door
1. To open the cabinet door, loosen the quarter-turn screws that hold the cabinet door
closed.
R7...R8, Side Panels
The side panels were removed to take the cabinet off the pallet. Installation access is
easier if these panels are kept off throughout the installation.
4. Mount the drive
R1...R6, UL type 1
1. Position the ACH550 onto the mounting screws
or bolts and securely tighten in all four corners.
Note: Use mounting hardware that permits fan
replacement without removal.
Note: Lift the ACH550 by its metal chassis.
2. Non-English speaking locations: Add a warning
sticker in the appropriate language over the existing warning on the top of the
module.
ACH550-UH
ACH550 Installation, Operation and Maintenance Manual
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IP2002