International comfort products N9MP1 Installation Instructions Manual page 21

Figure 13
All Models Vent through Right−Side
Plastic Cap
Yellow or black
Vent Drain
& Clamps
Drain Tube
Corrugated
, (15.9mm) ID &
5
/
8
Clamps
SIDE VIEW
Rotate
downward
55 to 105
NOTE: Built-in channel will
be angled 5° to 10° also.
All Models Vent through Right−Side
Disconnect the black drain tube between the drain vent and the
trap.
Rotate the inducer 180° for a right side vent after loosening the 4
inducer attachment screws. Reinstall and retighten the inducer
screws to 20" pounds torque.
1
Using the / " (12.7mm) OD barbed coupling in the loose parts bag
2
connect together with the two short
and connect the lower discharge port of the vent drain to the trap.
Secure all connections with clamps.
Install the vent pipe grommet into the casing
Cut an appropriate length of 2" (12.7mm) PVC pipe long enough
to exit the cabinet and connect the vent drain to either:
• A standard field supplied 2" (12.7mm) PVC tee (N9MP1 or
N9MP2 models), or
• A 2" (12.7mm) PVC coupling fastened onto the drain tee
(N9MPD and *9MPD models)
Install tee trap into bottom section of tee.
Remove knockout from the side of the furnace casing where drain
tube will exit.
440 01 1024 04
Dual Pressure Switch
V E
NT
ON
OFF
(See Figure 13)
1
/ " (12.7mm) ID elbow tubes
2
Specifications are subject to change without notice
On Some Models
ONLY
Either: The PVC Drain
Tee or a field supplied
Relief Tube
2, (50.8mm) PVC Tee
Black Rubber
, (4.8mm) ID
3
/
16
2, (50.8mm)
PVC
Coupling
Tee Trap White PVC
(loose parts bag)
Elbow Tubes (2) Black Rubber
, (12.7mm) ID & Clamps
1
/
2
(loose parts bag)
, (12.7mm) OD
1
Barbed Coupling, /
2
(loose parts bag)
Install casing grommet [
bag].
1
Install the / " (12.7mm) CPVC street elbow on discharge of trap
2
Install the black PVC tube connector [
(12.7mm) CPVC from loose parts bag as shown in the illustration
above.
Cut the black drain tube[
length to fit between trap and tube connector through grommet.
Clamp both ends of the drain tube using clamps provided.
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 in Figure 20.
Note: It is recommended that all PVC piping and fitting
connections be fit up and inspected before final cementing. Both
the internal 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.
Single Pressure Switch Details
Drain Line Vent Tee
(18.1mm) PVC or
(12.7mm) CPVC (Field sup­
plied)
Drain Connector Black PVC
, (19.1mm) PVC X
3
/
4
(12.7mm) CPVC
(Loose parts bag)
Casing Grommet
, (15.9mm) CPVC
5
Black Rubber /
8
(Loose parts bag)
5
/ " (15.9mm) ID grommet − in loose parts
8
3
/ " (19.1mm) PVC x
4
5
/ " (15.9mm) ID − in loose parts bag] to
8
,
3
/
4
,
1
/
2
,
1
/
2
25−24−68
1
/ "
2
21