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18-CD22D1-8 25
Installer’s Guide
CONDENSATE DRAIN INSTRUCTIONS
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▲
CAUTION
!
IT IS RECOMMENDED THAT A DRAIN PAN BE INSTALLED
UNDER THE FURNACE TO PREVENT PROPERTY DAMAGE,
PERSONAL INJURY OR DEATH FROM LEAKING CONDEN-
SATE.
VERTICAL APPLICATIONS
Upflow furnace - The connection tubing for left and
right side drainage is shipped in the blower compart-
ment. Install the connection tubing from the trap to the
side of the unit and trim all excess tubing to avoid
kinks.
Downflow furnace - The furnace is shipped with the
left side drainage setup. To change the right side drain,
remove the drain lines from the trap, rotate the trap
180° so it exits to the right, reconnect the lines, and run
a 1/2" CPVC pipe from the trap out through the right
side knockout. Use RTV silicone sealant to connect the
CPVC pipe to the trap for ease of removing to clean the
trap.
HORIZONTAL APPLICATIONS
Upflow and Downflow furnaces - All horizontal appli-
cations are left side only. It is always recommended that
the auxiliary drain pan be installed under a horizontally
installed evaporator and/or 90% gas furnace. Connect the
auxiliary drain pan to a separate drain line (no trap is
needed in this line).
Right side
UPFLOW (VERTICAL)
UPFLOW HORIZONTAL
17" UNITS
(Left side only)
Use Inducer Drain
hose without
extension
UPFLOW (VERTICAL)
Left side
Use
extension
hose here
UPFLOW HORIZONTAL 21" & 24" UNITS
(Left side only)
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