NTI Trinity Tft399 Installation And Operation Manual page 22

│Installation and Operation Instructions
Trinity

Roof Termination Details – Direct Vent Installation
Two-Pipe Termination (Roof)
Exhaust
Vertical
Min. 18"
Flashing
Horizontal
4-12" or greater
than 36"
DuraVent PolyPro Roof Termination
Refer to documentation included with termination kit for
complete installation instructions.
Min. 12"
above grade
or snow level
22
Figure 4-7(a)
Vent Screen
Vent pipe piece to
retain vent screen
Air-inlet
Min. 12"
above grade
or snow level
Figure 4-7(c)
Exhaust
Air-inlet
Flashing
Figure 4-7(b)
IPEX Concentric Termination (Roof)
Refer to documentation included with termination kit for
complete installation instructions.
Exhaust center
Air-inlet around
perimeter
Figure 4-7(d)
Exhaust only Roof Termination
Figure illustrates two options for exhaust termination only;
neither vent pipe illustrated is for combustion air-inlet.
Vent pipe piece to
retain vent screen
Vent Screen
Exhaust
Option 2
Flashing
Tft Series
Vent pipe piece to
retain vent screen
Vent Screen
Min. 12"
above grade
or snow level
Flashing
Exhaust
Option 1
Min. 12"
above grade
or snow level