23Heatilator • NDI30, NDI30-SP, NDI35, NDI35-SP, NDI30-SPFK, NDI35-SPFK • 2226-900 Rev. G • 4/11
F. Installing Adaptor and Termination Cap
For installation of termination cap see minimum vent
heights for various pitched roofs (see Figure 8.4) .
To install adaptor see Figure 8.5.
Roof Pitch H (Min.) Ft.
Flat to 6/12....................1.0*
Over 6/12 to 7/12 ........1.25*
Over 7/12 to 8/12 ..........1.5*
Over 8/12 to 9/12 ..........2.0*
Over 9/12 to 10/12 ........2.5*
Over 10/12 to 11/12 .....3.25
Figure 8.4 Minimum Height from Roof to Lowest Discharge
Opening
* 3 foot minimum in snow regions
Roof Pitch H (Min.) Ft.
Over 11/12 to 12/12 .......4.0
Over 12/12 to 14/12 .......5.0
Over 14/12 to 16/12 .......6.0
Over 16/12 to 18/12 .......7.0
Over 18/12 to 20/12 .......7.5
Over 20/12 to 21/12 .......8.0
CLASS A PIPE
Figure 8.5
Figure 8.6
To prevent odors and cold drafts, the chimney must be sealed around the vent
with non-combustible blanket insulation or fi eld fabricated metal plates.
Masonry Factory Built
Wood Burning
Remove 18 inch x 18 inch fl ashing on cap by removing 3
screws. Connect both the LINK-ZC-ADPB to Class A Pipe
and the termination cap to the LINK-ZC-ADPB with the
self tapping screws provided.
OPTIONAL LINK-ZC-ADPB
FOR USE WITH CLASS A
WOODBURNING PIPE
HORIZONTAL
OVERHANG
VERTICAL
WALL
GAS DIRECT VENT
TERMINATION CAP
12
X
ROOF PITCH
IS X/ 12
LOWEST
DISCHARGE
OPENING
2 FT.
MIN.
20 INCHES MIN.
H (MIN.) - MINIMUM HEIGHT FROM ROOF
TO LOWEST DISCHARGE OPENING
CAUTION! Risk of Cuts/Abrasions/Flying Debris.
Wear protective gloves and safety glasses during instal-
lation. Sheet metal edges are sharp.
Damper Flashing Kit (Optional)
For use with LINK-DV30B or LINK-DV4-30B Liner Kit.
Note: Damper may have to be removed to use this kit.
• Run fl ex liners through 3 in. holes in damper fl ashing.
• Attach damper fl ashing to fi rebox roof with self tapping
screws included in kit.
Note: The LINK-DV4-30B
system REQUIRES this insulation.
EXHAUST
AIR
VENT PIPE
TERMINATION
CAP
LINK-DV30B
Installation
LINK-DV4-30B
Installation
INLET AIR
VENT PIPE
WARNING:
DO NOT BLOCK
THIS PIPE END!
INLET AIR
VENT PIPE
EXHAUST
AIR
VENT PIPE
Note: Untwist the
pipe while extend-
ing it, to achieve full
30’ length.
OR