Specifications

440 01 1024 04
Specifications are subject to change without notice
21
EXHAUST
AIR FLOW
INLET
IN
ON
OFF
V
E
N
T
Figure 13
All Models Vent through Right−Side
Casing Grommet
Black Rubber
5
/
8
 (15.9mm) CPVC
(Loose parts bag)
Drain Connector Black PVC
3
/
4
 (19.1mm) PVC X
1
/
2

(12.7mm) CPVC
(Loose parts bag)
25−24−68
Single Pressure Switch Details
Dual Pressure Switch
Tee Trap White PVC
(loose parts bag)
2 (50.8mm)
PVC
Coupling
Barbed Coupling,
1
/
2
 (12.7mm) OD
(loose parts bag)
Rotate
downward
5 to 10
NOTE: Built-in channel will
be angled 5° to 10° also.
SIDE VIEW
Plastic Cap
Yellow or black
Vent Drain
& Clamps
On Some Models
ONLY
Either: The PVC Drain
Tee or a field supplied
2 (50.8mm) PVC Tee
Relief Tube
Black Rubber
3
/
16
 4.8mm) ID
Elbow Tubes (2) Black Rubber
1
/
2
 (12.7mm) ID & Clamps
(loose parts bag)
Drain Tube
Corrugated
5
/
8
 (15.9mm) ID &
Clamps
Drain Line Vent Tee
3
/
4

(18.1mm) PVC or
1
/
2

(12.7mm) CPVC (Field sup
plied)
All Models Vent through Right−Side (See Figure 13)
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.
Using the
1
/
2
″ (12.7mm) OD barbed coupling in the loose parts bag
connect together with the two short
1
/
2
″ (12.7mm) ID elbow tubes
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.
Install casing grommet [
5
/
8
″ (15.9mm) ID grommet − in loose parts
bag].
Install the
1
/
2
″ (12.7mm) CPVC street elbow on discharge of trap
Install the black PVC tube connector [
3
/
4
″ (19.1mm) PVC x
1
/
2
″
(12.7mm) CPVC from loose parts bag as shown in the illustration
above.
Cut the black drain tube[
5
/
8
″ (15.9mm) ID − in loose parts bag] to
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.