Installation Guide
Polypropylene (PP) Common Venting Installation Instructions            16 
Copyright © 2018 Rinnai America Corporation. All Rights Reserved.  
6 inch: 790087 / *791027PPS 
 4 inch: 790027 
3 inch: 790121 
Elbow  
Sample Horizontal Terminaon Assembly  
 Support Brackets required 
3’ MAXIMUM 
HORIZONTAL 
DISTANCE BETWEEN 
BRACKETS. 
6 inch: 790094 / *791029PPS 
4 inch: 790093 
3 inch: 790124 
Wall termination Kit 
Combustion Air & Exhaust 
6 inch: 790136 / *791022PPS 
4 inch: 790142 
Back-to-Back Kit 
6 inch: 790133 / *791020PPS 
4 inch: 790132 
Starter Kit 
6 inch: 790089 / *791028PPS 
4 inch: 790028 
3 inch: 790122 
39 inch Extension 
 Bracket 
 6 inch: 790092 
 4 inch: 790091 
 3 inch: 790123 
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 Installaons 










