18-CD35D1-1 25
INSTALLER’S GUIDE
HORIZONTAL APPLICATIONS
Upflow and Downflow furnaces
- All horizontal applications
are left side only. It is always recommended that the auxiliary
drain pan be installed under a horizontally installed evaporator
and/or 95% gas furnace. Connect the auxiliary drain pan to a
separate drain line (no trap is needed in this line).
The trap must be repositioned to the exterior of the cabinet.
Remove the trap from its present location and reposition the trap
outside of the unit, through the long circular hole, next to the
secondary recuperated cell. Remove the larger drain line (from
the secondary cell) and trim to fit between the secondary cell
and the new trap location. On upflow units, plug the hole in the
blower deck where the tube went through.
Remove the hose from the induced blower and reposition into
the other drain tap of the inducer, which is located 90° clockwise
around the inducer. Move the cap from that drain tap to the
unused drain tap. On upflow units, plug the hole in the blower
deck where the tube went through. On upflow units, this tube may
need to be extended, using the tubing shipped with the furnace.
Connections must be made to an
OPEN
or
VENTED DRAIN.
Outdoor draining of the furnace and coil condensate is permissible
if allowed by local codes. Caution should be taken to prevent
drains from freezing or causing slippery conditions that could
UPFLOW (VERTICAL)
Left side
lead to personal injury. Excessive draining of condensate may
cause saturated ground conditions that may result in damage to
plants.
^
Use
extension
hose here
UPFLOW HORIZONTAL 21" and 24" UNITS
(Left side only)
&
Use CPVC tubing from Trap outlet,
over burner box to cabinet exit
DOWNFLOW (VERTICAL)
Right
side
Cut off curved end of
Inducer drain hose
DOWNFLOW (HORIZONTAL)
DOWNFLOW (VERTICAL)
Left
side
*
(
)
