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5/ 16
(8mm)
5/ 16
1
3
/
4
(44mm)
(8mm)
5
/
16
(44mm)
1
3/ 4
1
3/ 4
(44mm)
Fig. 24 − Leveling Legs
LEVEL 0-IN. (0 MM) TO
1/2-IN. (13 MM) MAX
MIN 1/4-IN. (6 MM) TO
1/2-IN. (13 MM) MAX
UPFLOW OR
DOWNFLOW
Fig. 25 − Furnace Pitch Requirements
Fig. 26 − Upflow Return Air Configurations and Restrictions
(8mm)
1
3
/
4
(44mm)
(8mm)
5/ 16
A89014
HORIZONTAL
A11237
ANY COMBINATION OF 1, 2, OR 3 PERMITTED.
A11036
Fig. 27 − Downflow Return Air Configurations
and Restrictions
HORIZONTAL TOP
RETURN NOT
PERMITTED FOR
ANY MODEL
Fig. 28 − Horizontal Return Air Configurations
and Restrictions
29
A11037
A11038
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