Installation Guide
Polypropylene (PP) Common Venting Installation Instructions 11
Copyright © 2018 Rinnai America Corporation. All Rights Reserved.
Topics in this Secon:
• 6” Direct Vent and Room Air
• 6” Inline Add-On and Starter Kits
• 6” Back-to-Back Add-On and Starter Kits
6” Direct Vent and Room Air
Inline
Direct Vent
• Maximum 8 Units
Room Air
• Maximum 8 Units
• Refer to the Combuson Air secon of this manual for room air
requirements
Back-to-Back
6” Common Venng
Cutting Line table applicable up to 8 units.
Inline
Back-to-Back
Inline
# of Appl
L =
Back-to-
Back
# of Appl
L =
1 5.5” 1+1a 5.5”
2 6.5” 2+2a 6.5”
3 7.5” 3+3a 7.5”
4 8.5” 4+4a 8.5”
5 9.5”
6 10.5”
7 11.5”
8 12.5”