18-GE15D1-2
9
Installer’s Guide
Rail
Figure 16. Mounting Installation Options
for Horizontal Applications
HORIZONTAL RIGHT
1.
Unit is shipped from the factory in the horizontal
right configuration. Unit conversion is not re-
quired.
2.
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 16.
3.
If the unit is not suspended it must be supported
as mentioned above and isolated carefully to pre-
vent sound transmission. Vibration isolators (field
supplied) must be placed under the unit.
4.
It is always recommended that an auxiliary drain
pan be installed under a horizontal Air Handler
(See Condensate Drain Piping) to prevent pos-
sible damage to ceilings.
5.
Isolate the auxiliary drain pan from the unit or
from the structure.
6.
Connect the auxiliary drain line to a separate
drain line (no trap is needed in this line) and ter-
minate according to local codes.
7.
If a return duct is connected to the air handler, it
must be the same dimensions as the return
opening shown in Figure 17 and the outline
drawing on page 21.
8.
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 to seal all unused electri-
cal knockouts. See Figure 13.
9.
After ductwork connections are made, seal air-
tight and per local codes.
