16
Figure 12
NT 24/30/34SP • P30S
2 3/4" DIA. TWO HOLES.
INTAKE TUBE
MAXIMUM WALL THICKNESS
FOR THIS UNIT IS 2 1/4"
SEE FIGURE 4 IF MORE THAN
2 1/4" WALL THICKNESS.
ANCHOR VENT ASSEMBLY
WITH THE SCREW PROVIDED.
BE SURE SCREW ENGAGES
FURNACE EXHAUST TUBE
AND IS PULLED SECURE.
CAULK BEHIND VENT CAP AS SHOWN TO
SEAL BETWEEN EXHAUST AND INTAKE
AND TO PREVENT MOISTURE INSIDE
FURNACE COMPARTMENT. APPLY
CAULKING GENEROUSLY AROUND
PERIMETER OF VENT CAP AND ACROSS
CENTER AS SHOWN. CENTER PUTTY
STRIP IS ESSENTIAL.
Figure 13
NT 24/30/34SP • P30
EXTENSION TUBE
KIT NUMBER
MIN./MAX. LENGTH
(Extension Tube Range)
520498
2 1/4” to 3 1/8”
520499
3 1/8” to 4 7/8”
520500
4 7/8” to 7”
520501
7” to 9”
EXTENSION TUBE
KIT NUMBER
MIN./MAX. LENGTH
(Extension Tube Range)
520593
2 1/4” to 3 1/8”
520594
3 1/8” to 4 7/8”
520595
4 7/8” to 7”
520596
7” to 9”
Figure 15
NT 40 • P40
Figure 14
NT 24/30/34SP • P30
*3 1/2" FROM CENTER LINE
OF INTAKE TO CENTER LINE
OF EXHAUST
** 7 1/2" FROM CENTER LINE
OF INTAKE TO FLOOR
GASKET: PEEL OFF PROTECTIVE PAPER
TO EXPOSE THE ADHESIVE SURFACE.
ATTACH GASKET TO WASHER. PLACE
WASHER OVER GAS FITTING. THE
GASKET SHOULD SEAL AGAINST CABINET
WHEN GAS FITTING IS THREADED
INTO POSITION.
MAXIMUM WALL THICKNESS 3"
NOTE: 0" CLEARANCE PERMISSIBLE
AT REAR OF FURNACE FOR A WIDTH
OF 3" MAXIMUM
3 1/2
TWO 2 1/4" DIA HOLES
* *
*
7 1/2
2 3/4
13
6 7/32
12 7/16
VENT CAP
EXHAUST
AIR INTAKE
THE SCREW PROVIDED
MUST BE USED ON ALL
INSTALLATIONS
INSIDE WALL
OUTSIDE SKIN
FLOOR
ANCHOR TO FLOOR
WASHER
GAS FITTING
FURNANCE
VEnT aSSEMblY inSTallaTiOn (nT SEriES)
