Heatilator NNXT4236IF Installation Manual page 34

Install Horizontal Termination Cap (DVP and
SLP Pipe)
WARNING! Risk of Fire! The telescoping fl ue section of
the termination cap MUST be used when connecting vent.
• 1-1/2 (38 mm) minimum overlap of fl ue telescoping
section is required.
Failure to maintain overlap could cause overheating and
fi re.
• Vent termination must not be recessed in the wall. Siding
may be brought to the edge of the cap base.
• Flash and seal as appropriate for siding material at
outside edges of cap.
• When installing a horizontal termination cap, follow
the cap location guidelines as prescribed by current
ANSI Z223.1 and CAN/CGA-B149 installation codes
and refer to Section 4 of this manual.
CAUTION! Risk of Burns! Local codes may require in-
stallation of a cap shield to prevent anything or anyone
from touching the hot cap.
NOTICE: For certain exposures which require superior
resistance to wind-driven rain penetration, a fl ashing kit
and HRC caps are available. When penetrating a brick
wall, a brick extension kit is available for framing the brick.
Cap Specifi cation Chart (depth without using additional pipe sections)
DVP-TRAPK1
Top Vent Depth
4 1/2 to 6 3/8 in.
NNXT Series
DVP-HPC1
Top Vent Depth
4 1/2 to 6 5/8 in.
DVP-TRAP1 can adjust 1 1/2 in. (3 1/8 to 4 5/8)
DVP-TRAP2 can adjust 4 in. (5 3/8 to 9 3/8)
SLP-TRAP1 can adjust 1 5/8 in. (3 1/8 to 4 3/4)
SLP-TRAP2 can adjust 4 in. (5 1/4 to 9 1/4))
DVP-HPC1 can adjust 2 1/8 in. (4 1/4 to 6 3/8)
DVP-HPC2 can adjust 4 1/8 in. (6 3/8 to 10 1/2)
34 Heatilator • NNXT4236IF, NNXT4236ILF, NNXT3633IF, NNXT3633ILF Installation Manual • 4055-980 Rev. D • 9/15
DVP-TRAP1 DVP-TRAPK2
Rear Vent Depth Top Vent Depth
3 to 4 7/8 in. 6 7/8 to 10 7/8 in. 5 3/8 to 9 3/8 in.
DVP-HPC1 DVP-HPC2
Rear Vent Depth Top Vent Depth
3 to 5 1/8 in. 6 5/8 to 10 3/4 in. 5 1/8 to 9 1/4 in.
Note: When using termination caps with factory-supplied
heat shield attached, no additional wall shield fi restop is
required on the exterior side of a combustible wall.
HEAT SHIELD OR
EXTENDED
HEAT SHIELD
WALL SHIELD
FIRESTOP
CAN BE EXTENDED
INNER VENT
OUTER VENT
VENT DEPTH FROM BACK OF APPLIANCE TO
OUTSIDE SURFACE OF EXTERIOR WALL
(SEE CHART BELOW)
Figure 7.16 Venting through the wall
DVP-TRAP2 SLP-TRAP1
Rear Vent Depth Top Vent Depth
2 to 3 7/8 in.
DVP-HPC2
Rear Vent Depth
HEAT SHIELD
1-1/2 IN. (38 MM) MIN.
OVERLAP
SLIP SECTION
SHEATHING
INTERIOR EXTERIOR
SLP-TRAP2
Top Vent Depth
4 3/8 to 8 3/8
in.