International comfort products N9MP1 Installation Instructions Manual page 24

Figure 17 Horizontal Right- -Side Vent
Single Pressure Switch Detail
Relief Tube Black Rubber
3
Flexible Tubing Connector
3
/ ² ² ² ² 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 (*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.
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. Con-
nect the corrugated hose from the transition to the Trap. Secure
connections with clamps.
1
Connect the black / ² ID Drain Tube from the Vent Drain to the
2
Trap. If an extension is required, use the
1
and the black / ² ID Drain Tube in the loose parts bag. Cut tube
2
to length. Secure connections with clamps.
3
Connect the / ² ID relief tube to the middle port on the Trap. If
16
an extension is required, use the clear
3
and the black / ² ID relief tube in the loose parts bag. Cut tube
16
to length.
24
AIR FLOW
/ ² ² ² ² ID
16
3
/ ² ² ² ² ID
16
Dual Pressure Switch
5
Drain Tube Corrugated, / ² ² ² ² ID & Clamps
8
Cut at straight section
Cut Here
Leave room for clamp
(See Figure 17)
1
/ ² OD barbed coupling
2
3
/ ²OD splice connector
16
Plastic Cap
Yellow or black
Vent Drain
& Clamps
Level or Sloped
towards Tee
Drain Tube
Black Rubber
1
/ ² ² ² ² ID & Clamps
2
Cut an appropriate length of 2² PVC pipe, fittings and extension
pipe long enough to exit the cabinet and connect the vent drain to
either:
· A standard field supplied 2² PVC tee (N9MP1 models), or
A 2² PVC coupling fastened onto the Drain Tee (*9MPD
·
models)
Install Tee Trap into bottom section of Tee.
Important: The pipe to the Tee Trap must be level or sloping to-
wards the Tee Trap
Connect the Tee trap and the main drain line exiting the casing as
shown in Figure 18.
Note: It is recommended that all PVC piping and fitting connec-
tions be fit up and inspected before final cementing. Both the ex-
ternal 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
/ ² ² ² ² ID & Clamps
2
(Loose Parts Bag)
On Some Models
ONLY
INLET
Alternate Orienation
1
Barbed Coupling / ² ² ² ² OD
2
(Loose Parts Bag)
25--24--84c
440 01 1021 01