19
INLE
T
E
X
HAUS
T
IN
ON
OFF
VE
NT
Casing Grommet
Black Rubber
5
/
8
″
ID
(Loose parts bag)
Drain Connector Black PVC
3
/
4
″
PVC X
1
/
2
″
CPVC
(Loose parts bag)
Drain Line Vent Tee
3
/
4
″
PVC or
1
/
2
″
CPVC (Field supplied)
Drain Tube
Black Rubber
1
/
2
″
ID & Clamps
3
/
16
″
ID Rubber Tube
Coupling & Clamps
(Optional)
25--24--81
Single Pressure
Switch
Dual Pressure Switch Detail
Tee Trap White PVC
(loose parts bag)
2
″
PVC Coupling
On Some Models
ONLY
Plastic Cap
Yellow or black
Vent Drain
& Clamps
Rotate downward
5
°
to 10
°
NOTE:
Built--in channel will
be angled 5
°
to 10
°
also.
SIDE VIEW
Either: The PVC
Drain Tee or a field
supplied 2
″
PVC Tee
AIR
FL
O
W
AIR
FL
O
W
Drain Tube
Corrugated
5
/
8
″
ID & Clamps
Representative drawing only, some models may vary in appearance.
A07707
Fig. 11 -- Upflow Installations Vent through Left Side
Upflow Installations Vent through Left
Side (See Fig. 11)
S
Remove drain tee from inducer discharge and remove black
drain tube (
1
/
2
″
(13 mm) ID) from bottom of drain tee.
S
Install Vent Pipe grommet in side of casing.
S
Cut an appropriate length of 2
″
(51 mm) PVC pipe long
enough to exit the cabinet and connect the vent drain to either:
— A standard field supplied 2
″
(51 mm) PVC tee, or
— A 2
″
PVC coupling fastened onto the drain tee.
S
Install tee trap into bottom of tee.
S
Remove knockout from the side of the furnace casing where
drain tube will exit.
S
Install the
1
/
2
″
(13 mm)CPVC street elbow on discharge of trap
S
Install the black PVC drain connector (
3
/
4
″
(19 mm) PVC x
1
/
2
″
(13 mm) CPVC from loose parts bag) as shown in the
illustration above.
S
Cut the black drain tube (
5
/
8
″
(16 mm) ID -- in loose parts bag)
to length to fit between trap and tube connector through
grommet.
S
Clamp both ends of the drain tube using clamps provided.
S
Glue the CPVC street elbow to the trap using appropriate
cleaner and solvent cement.
S
Connect the tee trap and the main drain line exiting the casing
as shown in Fig. 19.
NOTE
: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing.
Both
the internal trap and the external tee trap must be primed
before operation.
Verify all condensate drain connections are
securely clamped. A coupling and clamps (in loose part bag) may
be installed as shown for future servicing of the vent system.
359AA
V
