8: Approved Pvc/Cpvc Vent Configurations - Rinnai RU80i Manual

Rinnai 3" or 4"
PVC/CPVC
Concentric
Side Wall
Termination
Configuration
Rinnai 3" or 4"
PVC/CPVC
Snorkel
Termination
Configuration
Rinnai 3" or 4"
PVC/CPVC
Tee Side Wall
Termination
Configuration
Rinnai 3" or 4"
PVC/CPVC
Low Profile
Termination
Configuration
VENTING INSTALLATION SEQUENCE
1. Install the water heater.
2. Determine the termination method—sidewall or
vertical, concentric or separate pipes, etc.
3. Determine proper location for wall or roof
penetration for each termination.
4. Install termination assembly as described in this
manual.
Table 8: Approved PVC/CPVC Vent Configurations
Rinnai 3" or 4"
PVC/CPVC
Concentric
Vertical
Termination
Configuration
Rinnai 3" or 4"
PVC/CPVC
Standard
upside down
"U" Vertical
Termination
Configuration
Rinnai 3" or 4"
PVC/CPVC
Tee Vertical
Termination
Configuration
5. Install air and vent piping from water heater to
termination.
6. Slope horizontal exhaust run towards the water
heater 1/4 per foot. DO NOT slope combustion air
pipe towards unit. Be sure to dispose of conden-
sate per local codes.
7. Install pipe supports and brackets every 4 feet
allowing for movement from expansion or as per
local code requirements.
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