Filter
Top Products
5
At Least
9 Inches
Less than
7 Inches
Offset
Figure 10
Air Flow
Figure 9
HIGHBOY FURNACEHIGHBOY FURNACE
HIGHBOY FURNACEHIGHBOY FURNACE
HIGHBOY FURNACE
(Figure 9)(Figure 9)
(Figure 9)(Figure 9)
(Figure 9)
Installation beneath furnace.
Cleaner mounts horizontally,
where return air enters from
below. Raise furnace and in-
stall beneath base.
Air Flow
Figure 11
TYPICAL MOUNTING POSITIONSTYPICAL MOUNTING POSITIONS
TYPICAL MOUNTING POSITIONSTYPICAL MOUNTING POSITIONS
TYPICAL MOUNTING POSITIONS
BASEMENT FURNACEBASEMENT FURNACE
BASEMENT FURNACEBASEMENT FURNACE
BASEMENT FURNACE
(LOWBOY) (Figure 6)(LOWBOY) (Figure 6)
(LOWBOY) (Figure 6)(LOWBOY) (Figure 6)
(LOWBOY) (Figure 6)
Cleaner is mounted hori-
zontally in return plenum,
just above furnace.
COUNTERFLOWCOUNTERFLOW
COUNTERFLOWCOUNTERFLOW
COUNTERFLOW
FURNACE (Figure 7)FURNACE (Figure 7)
FURNACE (Figure 7)FURNACE (Figure 7)
FURNACE (Figure 7)
Cleaner is mounted horizon-
tally in return duct or plenum,
just above furnace.
HIGHBOY FURNACEHIGHBOY FURNACE
HIGHBOY FURNACEHIGHBOY FURNACE
HIGHBOY FURNACE
(Figure 8)(Figure 8)
(Figure 8)(Figure 8)
(Figure 8)
Side installation. Cleaner
is mounted vertically,
where return air enters
side inlet of furnace.
OFFSET INSTALLATIONOFFSET INSTALLATION
OFFSET INSTALLATIONOFFSET INSTALLATION
OFFSET INSTALLATION
(Figure 10)(Figure 10)
(Figure 10)(Figure 10)
(Figure 10)
Typical use of duct offset to match air filter opening.
If duct connection to furnace allows less than nine
inches for mounting the air cleaner, shorten the
lateral trunk, or attach an offset fitting to the elbow.
HORIZONTAL FURNACEHORIZONTAL FURNACE
HORIZONTAL FURNACEHORIZONTAL FURNACE
HORIZONTAL FURNACE
(Figure 11)(Figure 11)
(Figure 11)(Figure 11)
(Figure 11)
Cleaner is mounted vertically
in the return duct near furnace.
Air Flow
Rear View
Figure 6
Air Flow
Rear View
Figure 7
Air Flow
Figure 8