Hitachi FB-12PIE Operation & Installation Manual page 4

5. Converting the filter box from rear to bottom return
(1) Remove the duct flange.
(2) Remove bottom plate fixing screws.See table
for the quantity.
Loosen screw A
(3) Open the service cover on both sides, and
loosen the lower side screws and flange screws.
Loosen the six screws on the
le and right sides of the box
1198817
Johnson Controls - Hitachi Air Conditioning, Inc.
(4) Pull out the bottom plate.
(5) Install the bottom plate on rear side of the
filter box, and the flange on lower side of the
box. Tighten the screws.
Quantity
A
FB-12PIE 1
FB-30PIE 3
FB-48PIE 4
When you notice exceptionally abnormal noise
•
or vibration, stop operation and contact your
dealer.
Use proper safety equipment for the
•
Installation work.
Tighten all screws as specified in the instructions.
•
○ Over tightening screws can cause damage to
parts.
Not following properly installation instructions
•
may result in air flow not passing through the
filters, causing poor performance and other
problems.
P02242Q 2023.12 V02