International comfort products N9MP1 Installation Instructions Manual page 23

Figure 16
Horizontal Right thru Top
Trap Connection
"Clamp ears"
Pointed OUT
Preassemble &
insert into furnace
Horizontal Right Thru Top
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 black
1
coupling and the black / ² ID Drain Tube in the loose parts bag.
2
Cut tube 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
440 01 1021 01
Single Pressure Switch Detail
Relief Tube Rubber Tube
3
/ ² ² ² ² ID
16
Flexible Tubing Connector
3
/ ² ² ² ² OD (Loose Parts Bag)
16
Relief Tube Extension
3
Black Rubber / ² ² ² ² ID
16
Cut to Fit (Loose Parts Bag)
Drain Tube Corrugated
Cut at straight section
Leave room for clamp
(See Figure 16)
1
/ ² OD barbed
2
3
/ ² OD flexible tubing con-
16
AIRFLOW
Coupling & Clamps
(Optional)
WARNING
Add Cap and
Clamp
Dual Pressure Switch
5
/ ² ² ² ² ID & Clamps
8
Cut Here
nector and the black
tube to length.
Cut an appropriate length of 2² PVC pipe, fittings and extension
pipe long enough to exit the cabinet and connect the vent drain to
a standard field supplied 2² PVC Tee
Install Tee Trap into bottom section of Tee.
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.
Alternate Orienation
Plastic Cap
Yellow or black
Vent Drain
& Clamps
Elbow Tube Black Rubber
ID & Clamps (Loose Parts Bag)
INLET
On Some Models
ONLY
Barbed Coupling
(Loose Parts Bag)
Drain Tube Black Rubber
1
/ ² ² ² ² ID & Clamps
2
3
/ ² ID relief tube in the loose parts bag. Cut
16
Field
Supplied Tee
Tee Trap
White PVC
(loose parts bag)
1
/ ² ² ² ²
2
1
/ ² ² ² ² OD
2
25--24--89
23