24
18-CD25D1-2
Installer’s Guide
CONDENSATE DRAIN INSTRUCTIONS
▲
WARNING
!
CARBON MONOXIDE POISONING HAZARD
Failure to follow the installation instructions for the
venting system being placed into operation could re-
sult in carbon monoxide poisoning or death.
▲
CAUTION
!
It is recommended that a drain pan be installed under
the furnace to prevent property damage, or personal
injury.
Knock outs are provided on the left and right hand side
of both furnace cabinets for drain connections
IN VER-
TICAL APPLICATIONS
. The standard arrangement is
for the drain connection on the left side. The tubing
may have to be trimmed in this application to avoid
kinking.
The
upflow (
vertical application
)
has provisions for
right side drain connections by turning the trap and ex-
tending the tubing to the lower right front corner of
the Furnace. Trim all excess tubing to avoid kinking.
The connecting tubing for left or right side condensate
drain shown in Figure 27 is shipped in the blower com-
partment.
It is always recommended that an auxiliary drain pan
be installed under a horizontally installed evaporator
or 90% Gas Furnace. Connect the auxiliary drain line
to a separate drain line (no trap is needed in this line).
All horizontal applications are left side only and
require repositioning the condensate canister trap
to the exterior of the cabinet. Additionally the
drain tubing connected to the inducer housing
must be repositioned for removing the plug and re-
connecting the tubing to the lower connection on
the inducer housing. See Figure 28.
For horizontal installation, remove the condensate trap
and position the trap outside the cabinet through the
slotted opening next to the secondary cell. On upflow/
horizontal models, remove lines from the blower sec-
tion and pull through the blower deck. Cut and reattach
the line from the secondary cell (use the spring to pre-
vent kinking).
The inducer housing has a secondary drain opening at
its 9 o’clock position. Remove the plug and use the plug
to cover
the hole at the 6 o’clock position. Reposition
the Inducer drain tube from 6 o’clock to the 9 o’clock lo-
cation. Cut and reattach the tube to the canister trap.
Plug openings in Blower deck, Inducer and Blower sec-
tion. See Figure 28.
Connections must be made to an
OPEN/ VENTED
DRAIN
.
NOTE: Use 1/2" size PVC pipe and fittings through-
out for drain connections (fittings, pipe and PVC sol-
vent cement not provided).
THE UPFLOW (VERTICAL) MAY BE INSTALLED
LEFT OR RIGHT SIDE CONDENSATE DRAIN
TO DRAIN
RIGHT SIDE
HEADER
UPFLOW FURNACE
(Vertical)
TO DRAIN
LEFT SIDE
HEADER
Figure 27
