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Figure 19
Horizontal Right- -Side Vent
Single Pressure Switch Detail
Relief Tube Black Rubber
3
Flexible Tubing Connector
3
/
" OD (Loose Parts Bag)
16
Relief Tube Extension
Black Rubber
Cut to Fit (Loose Parts Bag)
Horizontal Right- -Side Vent
Disconnect drain tee if installed (N9MPD and *9MPD models only)
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.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Mount the trap externally to the bottom side of the unit using the
2 screws provided in the location shown.
Cut the corrugated tube as shown in the illustration above.
Connect the corrugated hose from the transition to the trap.
Secure connections with clamps.
1
Connect the black
/
" ID drain tube from the Vent Drain to the trap.
2
If an extension is required, use the
1
the black
/
" ID drain tube in the loose parts bag. Cut tube to
2
length. Secure connections with clamps.
3
Connect the
/
" ID relief tube to the middle port on the trap. If an
16
extension is required, use the clear
26
AIR FLOW
/
" ID
16
3
/
" ID
16
Dual Pressure Switch
5
Drain Tube Corrugated,
/
" ID & Clamps
8
Cut at straight section
Cut Here
Leave room for clamp
Representative drawing only, some models may vary in appearance.
(See Figure 19)
1
/
" OD barbed coupling and
2
3
/
"OD splice connector and
16
Specifications are subject to change without notice
Plastic Cap
Yellow or black
Vent Drain
& Clamps
Level or Sloped
towards Tee
Remove KO before
mounting Trap
Drain Tube
Black Rubber
1
/
" ID & Clamps
2
3
the black
/
" ID relief tube in the loose parts bag. Cut tube to
16
length.
Cut an appropriate length of 2" PVC pipe, fittings and extension
pipe long enough to exit the cabinet and connect the vent drain to
either:
A standard field supplied 2" PVC tee (N9MP1 models), or
•
A 2" PVC coupling fastened onto the drain tee (N9MPD and
•
*9MPD models)
Install tee trap into bottom section of tee.
Important: The pipe to the tee trap must be level or sloping towards
the tee trap
Connect the tee trap and the main drain line exiting the casing as
shown in Figure 20.
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.
Coupling & Clamps
(Optional)
Field
Supplied Tee
Tee Trap
White PVC
(loose parts bag)
Elbow Tube
Black Rubber
1
/
" ID & Clamps
2
(Loose Parts Bag)
On Some Models
ONLY
INLET
Alternate Orientation
1
Barbed Coupling
/
" OD
2
(Loose Parts Bag)
25--24--84c
440 01 1024 01
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