Installation | 9SM Split AH/AV Air Handler
8733826256 (2020/06)SM Split AH/AV Air Handler
Subject to change without prior notice
2. Mount the four Brackets to unit’s four corner
posts using the screws provided in the kit.
Refer to Fig. 6 and Fig. 7.
Fig. 6 Four Bracket Mounting Locations
Fig. 7 Mounting Brackets to the Corner Posts
3. Install the Rubber Vibration Isolator grommets
onto the Brackets as shown in Fig. 8.
4. Hang the unit and assemble the field-provided
threaded rod, nuts, and washers on to the
brackets as shown in Fig. 8.
Fig. 8 Connecting the Threaded Rod to the Brackets
Condensate Drain
The air handler should be pitched approximately
1/4” towards the drain in both directions, to
facilitate condensate removal. A drain line must be
connected to the air handler and pitched away
from the unit a minimum of 1/8” per foot to allow
the condensate to flow away from the unit. This
connection must be in conformance with local
plumbing codes.
A trap must be installed in the condensate line to
ensure free flow of the condensate. A vertical air
vent is sometimes required to avoid air pockets.
See Fig. 9. The length of the trap depends on the
amount of positive or negative pressure on the
drain pan.
Fig. 9 Condensate Drain
WARNING: Do not re-use screws removed
from the unit on step 1 to mount the
Hanging brackets to the unit.
WARNING: Rods must be securely
anchored to the ceiling.
Plumbing connected to the heat pump must
not come in direct contact with joists,
trusses, walls, etc.
Never use a second trap.
Units are not internally trapped.
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