International comfort products G9MVE A3 Series Installation Instructions Manual page 22

INSTALLATION INSTRUCTIONS
CAUTION
!
MINOR PROPERTY HAZARD
Failure to follow this caution may result in minor property
damage.
Local codes may require a drain pan under entire furnace
and condensate trap when a condensing furnace is used in
an attic application or over a finished ceiling.
The furnace can be installed horizontally in an attic or
crawlspace on either the left−hand (LH) or right−hand (RH)
side. The furnace can be hung from floor joists, rafters or
trusses or installed on a non−combustible platform, blocks,
bricks or pad.
Figure 23 Duct Flanges
PERFORATED
DISCHARGE DUCT
FLANGE
22
Suspended Furnace Support
The furnace may be supported under the entire length of the
furnace with threaded rod and angle iron. (See Figure 26)
Secure angle iron to bottom of furnace as shown.
Platform Furnace Support
Construct working platform at location where all required
furnace clearances are met. (See Table 1 and Figure 27) For
furnaces with 1−in. (25 mm) clearance requirement on side, set
furnace on non−combustible blocks, bricks or angle iron. For
crawlspace installations, if the furnace is not suspended from
the floor joists, the ground underneath furnace must be level
and the furnace set on blocks or bricks.
UPFLOW
90°
YES
YES
120°
MIN
NO
Specifications subject to change without notice.
Gas Furnace: (F/G)9MVE
DOWNFLOW
YES
YES
120°
MIN
NO
HORIZONTAL
90°
YES
YES
120°
MIN
NO
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