18-GE08D1-10
7
Installer’s Guide
k.
Openings where field wiring enters the
cabinet must be completely sealed.
Location
of power entry is shown on the outline drawing.
Use 2.5" clear stickers provided to seal all un-
used electrical knockouts. See Figure 11.
l. After ductwork connections are made, seal air-
tight and per Local codes.
HORIZONTAL RIGHT
a.
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.
The factory installed filter should then be
removed from the unit.
b. Unit is shipped from the factory in the upflow or
horizontal right configuration. Unit conversion
is not required.
c. 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.
If the unit is not suspended it must be support-
ed as mentioned above and isolated carefully
to prevent sound transmission. Vibration isola-
tors (purchased locally) must be placed under
the unit.
e. It is always recommended that an auxiliary
drain pan be installed under a horizontal air
handler (See Condensate Piping) to prevent
possible damage to ceilings.
f. Isolate the auxiliary drain pan from the unit or
from the structure.
g. Connect the auxiliary drain line to a separate
drain line (no trap is needed in this line) and
terminate according to National and Local
codes.
h. 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.
i. On units with sheetmetal returns: Return
plenum should be flanged. Sheetmetal screws
must be 1/2" in length or shorter.
j. No sheetmetal screws may be used to attach
return ductwork on the side of the unit.
Rail
0
Electrical Knoc
kout Stic
ker Sheet
q
