International comfort products N9MP1 Installation Instructions Manual page 16

Figure 9 Upflow Installations Top Vent
Plastic Caps (2)
Yellow or black
Vent Drain
& Clamps
Dual Pressure Switch Detail
Drain Connector Black PVC
3
(Loose parts bag)
Casing Grommet
Black Rubber
5
/ ² ² ² ² ID
8
(Loose parts bag)
Upflow Installations Top Vent
Remove plug from the side of the furnace casing where Drain Tube
will exit.
Install casing grommet (black rubber
parts bag)
1
Install the / ² CPVC street elbow on discharge of Trap
2
Install the black PVC tube connector (
loose parts bag) as shown in the illustration above.
5
Cut the black Drain Tube ( /
8
fit between Trap and tube connector through grommet.
Clamp both ends of the Drain Tube using clamps provided.
NOTE: "PVC" is used as a generic term. Pipe and fitting materials used must be acceptable to the local code officials having
jurisdiction.
16
Coupling & Clamps
(Optional)
Drain Tee
Drain Tube
Black Rubber
1
/ ² ² ² ² ID & Clamps
2
Drain Tube
5
Corrugated / ² ² ² ² ID
8
& Clamps
1
/ ² ² ² ² PVC X / ² ² ² ² CPVC
4 2
3
Drain Line Vent Tee / ² ² ² ² PVC or
4
1
/ ² ² ² ² CPVC (Field supplied)
2
(See Figure 9)
5
/ ² ID grommet -- in loose
8
3 1
/ ² PVC x / ² CPVC from
4 2
² ID -- in loose parts bag) to length to
V E
NT
ON
OFF
5
Drain Tube Black Rubber / ² ² ² ² ID & Clamps,
8
Cut length to fit (Loose parts bag)
Glue the CPVC street elbow to the Trap using appropriate cleaner
and solvent cement.
Connect the Tee trap and the main drain line exiting the casing as
shown Figure 18.
Note: It is recommended that all PVC piping and fitting connec-
tions be fit up and inspected before final cementing. Trap must be
primed before operation. Verify all condensate drain connec-
tions are securely clamped. A coupling and clamps (in loose part
bag) may be installed as shown for future servicing of the vent sys-
tem.
On Some Models
ONLY
Single Pressure Switch
Relief Tube
Black Rubber
3
/ ² ² ² ² ID
16
Street Elbow
1
/ ² ² ² ² CPVC
2
(Loose parts bag)
25--24--80
440 01 1021 01