IM 915-13 • VISION - EXTENDED SIZES 12 www.DaikinApplied.com
HEPA Holding Frame, Filter, and
These instructions are for installing AAF HEPA lters (11-1/2”
depth) into AAF HEPA Holding Frames.
Please read the entire installation instructions before beginning
the installation process.
Install lters into the HEPA Holding Frames only after the
frames have been securely installed into existing ductwork or
housing. Frames should be bolted or pop riveted together into
the permanent structure through the pre-drilled holes around the
outside perimeter of the frames. Frames should be suciently
caulked and sealed to prevent any air bypass or leakage.
Required tools for lter installation:
• T-handle Hexkey, size 5/32”
Framing Components Required:
• AAF HEPA Holding Frames
— P/N 910111491 & 910111674
• Leg Extensions, 4 per frame (A)
— P/N 910111494
• Latches, 4 per frame
— P/N 910111493 (B) (without prelters)
— P/N 910123164 (C) (with prelters)
• Prelter Holding Frames (when prelters are ordered)
— P/N 910123166 & 910123168
• Prelter Latches (when prelters are ordered)
— P/N 111048304 & 111048305
Figure 15: Leg Extensions and Latches without Prelters
Figure 16: Leg Extensions and Latches with Prelters
STEP 1: At the inside corner of each frame are 4 tabs, 2 per
side. Place a leg extension over the 4 tabs as shown in Figure
17, then pull back on the leg extension locking it into place
(Figure 18).
Repeat Step 1 with each of the 4 corners. The frame with leg
extensions should look like Figure 19.
Figure 17: Place Leg Extension over the Frame Tabs
Figure 18: Pull Back to Lock the Leg Extension into Place
A
A
A
A
B
B
B
B
A
A
A
A
C
C
C
C
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