International comfort products N9MSE Series Installation Instructions Manual page 27

INSTALLATION INSTRUCTIONS
Downflow Return Air
Figure 27
Configurations and Restrictions
Upflow Return Air Configurations
Figure 28
and Restrictions
Horizontal Return Air
Figure 29
Configurations and Restrictions
HORIZONTAL TOP
RETURN NOT
PERMITTED FOR
ANY MODEL
SIDE RETURN AIR NOT PERMITTED FOR 2000 CFM AND ABOVE OF AIR
FLOW
440 01 4103 03
External Filter Cabinet Configurations
Figure 30
L10F033
22−5/16
(566.4)
L10F032
Table 9
KIT NO.
NAHB00501FF
NAHB00601FF
NAHB00701FF
NAHB00801FF
L10F034
Specifications subject to change without notice.
Gas Furnace: N9MSE
Accessory Bottom Filter Rack
B
A
A
Dimensional Drawing − in. (mm)
FURNACE
A
WIDTH
14−3/16 11−3/8
(360.4) (289)
17−1/2 14−5/8
(444.5) (371.5)
21 18−1/8
(533.4) (460.4)
24−1/2 21−5/8
(622.3) (549.3)
L10F031
28−7/16
(722.2)
2−3/16
(55.5)
B
14−1/4
(362)
17−5/8
(447.7)
21−1/8
(536.6)
24−5/8
(625.5)
27