Condensate Piping - Coleman PxXU-V series Installation Instructions Manual

HORIZONTAL VENT APPLICATIONS
If installing a horizontal venting system, it is recommended
that a vent drain be added to the vent pipe to prevent the
accumulation of excess condensate in the inducer motor dur-
ing operational cycles. Refer to Figure 31.
FIGURE 31 : Horizontal Vent Drain - Upflow Models
FIGURE 32 : Horizontal Vent Drain -
Downflow/Horizontal Models
22
3.00" MINIMUM
LOOP DIA.
ATTACH THIS END
TO CONDENSATE
DRAIN SYSTEM
3.00 MINIMUM
LOOP DIA.
ATTACH THIS END
TO CONDENSATE
DRAIN SYSTEM
To install the vent drain, complete the following steps:
1. Place a tee of the proper diameter for the vent system
being installed (2" or 3") in the horizontal run closest to
the furnace.
2. Place a reducer bushing of proper diameter in the stem
portion of the tee. The recommended size for the
reducer is 5/8".
3. Place a piece of 5/8" diameter or other selected size pipe
a minimum of 3" long into the reducer to serve as a
nipple.
NOTE: Tee, reducer and nipple must be properly cemented
together using the appropriate method and materials speci-
fied in the Combustion Air Intake/Vent Connections section of
these instructions.
4. Connect a piece of flexible drain tubing such as EPDM
rubber, Vinyl or PVC to the nipple.
5. Loop the drain tubing to provide a trap.
6. Connect the discharge end of the drain tube to the con-
densate disposal system externally to the furnace.

CONDENSATE PIPING

The condensate drain connection is packed in the furnace for
field installation. It consists of a formed hose with a 1/2" NPT
male connection. A 1/2" FM x 3/4" PVC slip coupling is
provided.
This drain hose may be installed to allow left or right side con-
densate drain connection. Refer to Figure 33. Cut the hose
to allow for proper fit for left or right exit.
LH DRAIN
FIGURE 33 : Condensate Piping - Upflow Models
.
To install the drain hose assembly, remove the 7/8" knockout
in the side panel. Remove the conduit nut from the 1/2" male
fitting. Push the male fitting through the hole and reinstall the
nut. The use of the 3/4" PVC coupling is optional.
035-17468-001 Rev. A (801)
RH DRAIN
Unitary Products Group