Brochure
Common Venting | Direct Vent - Polypropylene
Use the Rinnai Common Venting System which uses
Polypropylene PP – a more reliable venting material for the job and
able to withstand exhaust temperatures up to 230° F.
• Clean, easy, cost eective installations that require less labor
• Fewer wall of roof penetrations
• Vent lengths up to 150’ with 8 TWH units
• Easy push fit joints – no cement or glue required
• In-line or back-to-back installations; horizontal or vertical termination
• More venting options than ever before for indoor installations
Common venting
The epitome
of streamlined
installation
SAMPLE HORIZONTAL TERMINATION ASSEMBLY DIRECT VENT
INLINE and CORNER
(P/N: 790130)
3' Maximum Horizontal
Distance Between Brackets.
7’ MAXIMUM VERTICAL
DISTANCE BETWEEN
BRACKETS. AT LEAST ONE
BRACKET IS REQUIRED FOR
EACH EXTENSION.
Vent termination per ANSI Z223.1/NFPA 54. For
clearances not specified in ANSI Z223.1/NFPA 54,
clearances are in accordance with local installation
codes and the requirements of the gas supplier.
*PPS material listed to ULC-S636 for Canadian Installations
Images are for illustrative purposes only. Refer to Installation Instructions for
Polypropylene (PP) Common Venting for detailed instructions.
BRACKET
6" - 790092
4" - 790091
3" - 790123
SUPPORT BRACKET REQUIRED
° ELBOW
6" - 790087 / *791027PPS
4" - 790027
3" - 790121
STARTER KIT
6" - 790133 / *791020PPS
4" - 790132
BACKTOBACK KIT
6" - 790136 / *791022PPS
4" - 790142
WALL
TERMINATION KIT
COMBUSTION AIR & EXHAUST
6" - / *PPS
4" -
3" -
INCH EXTENSION
6" - / *PPS
4" -
3" -
VENTING HEADER KIT MATRIX
TRW/TRSIL
MODELS
TRS
MODELS
Qty of
Tankless
Units
Min.
Vent
Size
Qty of
Starter Kits
Needed
In Line Kits
In-Line
Kits
Back-to-Back
Kits
2 3"
1 2 0 1
3 4"
1 3 1 1
4 4"
1 4 0 2
5 6"
1 5 1 2
6 6"
1 6 0 3
7 6"
1 7 1 3
8 6"
1 8 0 4
9 6"
1 9 1 4
10 6"
1 10 0 5
11 6"
1 11 1 5
12 6"
1 12 0 6
4" INLINE
4" ADD-ON
(P/N: 790134)
4" STARTER
(P/N: 790132)
4" BACK-TO-BACK
4" ADD-ON
(P/N: 790142)
4" STARTER
(P/N: 790132)
6" INLINE
6" ADD-ON
(P/N: 790135)
6" STARTER
(P/N: 790133)
6" BACK-TO-BACK
6" ADD-ON
(P/N: 790136)
6" STARTER
(P/N: 790133)
"
"
"
Learn more at rinnai.us