23
Trap Connection
“Clamp ears”
Pointed OUT
Preassemble &
insert into furnace
AIR
FLO
W
IN
ON
OF
F
V
E
N
T
Relief Tube
Black Rubber
3
/
16
″
ID
Plastic Caps
Yellow or black
Vent Drain
& Clamps
Single Pressure Switch Detail
Dual Pressure Switch
Tee Trap White PVC
(loose parts bag)
Cap and Clamp
Open End
Flexible Tubing Connector
3
/
16
″
OD (Loose Parts Bag)
Drain Tube
Black Rubber
1
/
2
″
ID & Clamps
EXHAUS
T
Alternate Orientation
Field
Supplied Tee
Cut Here
Drain Tube Corrugated
5
/
8
″
ID & Clamps
Cut at straight section
Leave room for clamp
Relief Tube Extension
Black Rubber
3
/
16
″
ID
Cut to Fit (Loose Parts Bag)
AIR
FL
OW
Coupling & Clamps
(Optional)
Representative drawing only, some models may vary in appearance.
Remove KO before
mounting Trap
A07709
Fig. 15 -- Horizontal Left through Top
Horizontal Left through Top (See Fig. 15)
S
Disconnect the hoses from the trap assembly, and remove trap
and trap mounting bracket from the blower compartment.
Using cover plate and gasket provided in the loose parts bag,
cover the hole from the burner compartment to the blower
compartment and secure with screws.
S
Remove knockout from the side of the furnace casing where
drain tube will exit.
S
Mount the trap externally to the bottom side of the unit using
the 2 screws provided in the location shown.
S
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
S
Remove the black
1
/
2
″
(13 mm) ID drain tube from the drain
tee. Install a yellow cap and clamp over the open drain port of
the drain tee.
S
Connect the black
1
/
2
″
(13 mm) ID drain tube from the Vent
Drain to the trap. Secure connections with clamps.
S
Connect the
3
/
16
″
(5 mm) ID relief tube to the middle port on
the trap. If an extension is required, use the
3
/
16
″
(5 mm) OD
flexible tubing connector and the black
3
/
16
″
(5 mm) ID relief
tube in the loose parts bag. Cut tube to length. Secure all
connections with clamps.
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
″
(51 mm) PVC coupling fastened onto the drain
tee.
S
Install tee trap into bottom section of tee.
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 external 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