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Installer's Guide
k. If a return duct is connected to the air handler,
it must be the same dimensions as the return
opening shown in the outline drawing.
l. On units with sheet metal returns: Return ple-
num should be flanged. Sheetmetal screws must
be 1/2" in length or shorter.
m. No sheetmetal screws may be used to attach
return ductwork on the side of the unit.
n. Openings where field wiring enters the cab-
inet must be completely sealed. Location of
power entry is shown on the outline drawing.
Use 2.5" clear stickers to seal all unused electri-
cal knockouts. See Figure 11.
o. After ductwork connections are made, seal air-
tight and per local codes.
HORIZONTAL LEFT
a. To convert the unit to horizontal left, front ac-
cess, slide the coil out on the coil channel sup-
ports and rotate the complete coil 180 degrees.
b. For maximum efficiency and Customer ease
of filter maintenance, it is recommended that a
properly sized remote filter grille be installed
for horizontal applications. Airflow should not
exceed the face velocity of the filter being used.
9
7/8" GASKET
(TYP. BOTH SIDES)
6
DOWNFLOW BAFFLE KIT
SCREWS TO
REMOVE COIL
7/8" GASKET
X
1/2" GASKET
INSIDE SURFACE
OF BAFFLE
SECT. X-X
WATER
BLOW-OFF
BAFFLES
ATTACH WITH
2 SCREWS
EACH SIDE
The factory installed filter should then
be removed from the unit. Remove the fac-
tory installed baffle assembly from the apex of
the coil by using a 5/16" nutdriver to remove
the hex head screws. Replace this baffle with
the factory supplied narrow coil baffle using
the screws removed previously. See Figure 5.
When installing the narrow coil baffle, make sure to
align the baffle up with the holes so NOT to puncture
the coil tubing.
c. The coil is then inserted back into the cabinet on
the opposite side coil channel supports. The unit
is now horizontal left with front access. Do not
reattach coil support tab.
d . If the unit is suspended, it must be supported
from the bottom near both ends as well as the
middle to prevent sagging. The service access
must remain unobstructed. If the unit is sup-
ported along the length of the front and back
with rails, the air handler only needs to be sus-
pended at both ends. See Figure 10.
DISCARD HORIZONTAL
DRIP TRAY
X
WATER
DIVERTER
BAFFLES
(5TON ONLY)
FILL WITH SEALANT
CAUTION
L
!
SCREWS TO
REMOVE COIL
18-GE08D1-10
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