Upflow Installations Vent through Left-Side
Plastic Cap
Yelloworblack
2" (50.8mm)PVC
Coupling
Coupling& Clamps
(Optional) i
Either:ThePVC
DrainTeeorafield
VentDrain
& Clamps supplied 2"
(50.8mm)PVCTee
\\\
Dual Pressure Switch Detail \
_-_ TeeTrapWhite PVC
(looseparts bag)
! DrainTube
r_ BlackRubber
i 1/2"(12,7mm)ID
&Clamps
DrainConnectorBlackPVC DrainTube
3/4" (19,1mm)PVCX1/2" Corrugated
(12,7mm)CPVC 5/8"(15,9mm)ID
(Loosepartsbag)\ ...... --_&Clamps
\
CasingGrommet / '\
BlackRubber
5/8"(15,9mm)ID
(Loosepartsbag)
--\ i
On SomeModels
ONLY
//
Single Pressure Switch
ii.L"
?'
/
ReliefTube
BlackRubber3/16"
(4.8mm)ID
,r7 _,- _-.
/'
SIDE VIEW
5° to 10°
/
_uilt-inchannelwill
beangled 5°to 10° also.
DrainLineVentTee3/4" (18,1mm)PVCor 1/2" '
(12,7mm)CPVC(Fieldsupplied)
Representative drawing only_some models may vary in appearance,
Upflow Installations Vent through Left-Side (SeeFigure12)
Remove drain tee from inducer discharge and remove black drain
tube 1/2" (12.7mm) ID from bottom of drain tee. (N9MPD and
*9MPD models only)
Install Vent Pipe grommet in side of casing.
Cut an appropriate length of 2" (50.8mm) PVC pipe long enough
to exit the cabinet and connect the vent drain to either:
• A standard field supplied 2" (50.8mm) PVC tee (N9MP1 or
N9MP2 models), or
• A 2" (50.8mm) PVC coupling fastened onto the drain tee
(N9MPD and *9MPD models)
Install tee trap into bottom of tee.
Remove knockout from the side of the furnace casing where drain
tube will exit.
Install the 1/2" (12.7mm) CPVC street elbow on discharge of trap
25-24-81
Install the black PVC drain connector [3/4" (19.1mm) PVC x _/2"
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.
20
Specifications are subject to change without notice
44001 102404
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