Honeywell F90A1050 - Page 10

F90A,B SELF-CONTAINED COMMERCIAL ELECTRONIC AIR CLEANER
68-0103-6 Revised 11-07
9
Fig. 7. F90 installation dimensions in in. (mm).
M920
29-1/4 
(743)
8
(203)
24
(610)
LATCHES
POWER
CORD
1
ALLOW AT LEAST 9 INCHES (229 MILLIMETERS) FROM 
BACK OF F90 TO WALL FOR REMOVAL OF COVER.
7 (178)
1
2
2
ALLOW AT LEAST 16 INCHES (406 MILLIMETERS) FROM

FRONT OF F90 TO WALL FOR INSTALLATION AND 
REMOVAL OF CELLS.
3 (76)
16
(406)
F90B
3/8 (10) DIAMETER
3/8 (10) DIAMETER
KEYHOLE
24 (610)
29-1/4 (743)
16 (406)
2 (51)
7/8 (22) DIAMETER 
KNOCKOUT

4
(102)
1
2
9 (229)
F90A
29-1/4
(743)
24
(610)
16
(406)
19-1/4 (489)
14-1/2 (368)
3-1/4
(83)
5-3/4 (146)
3/4 (19)
M1533
DRILL 5/16 INCH
(8 mm)
PILOT 
HOLES
5/8 INCH (19 mm)
DIAMETER KEY HOLES
PROVIDED IN AIR
CLEANER HOUSING
3/8 x 3 INCH
(10 x 76 mm)
LAG SCREW AND
WASHER
VENTURI
PLATE
REMOVE
CELLS
AND
FILTERS

TYPICAL 2 x 8 INCH

WOOD JOISTS,
16 INCH CENTERS
5-1/2 (140 mm)
Fig. 8. Mounting the F90 using lag screws in joist
applications.
Mounting the F90 Using Threaded
Steel Rod
1. Arrange two 2 x 4 supports as shown in Fig. 9.
2. Drill four 5/16 inch pilot holes through the supports
using the mounting template to locate holes.
3. Mount the steel rods to the supports.
4. Lift the F90 to the mounting location.
5. Mount the F90 to the steel rods by attaching the nuts
and washers.