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Rinnai Tankless Water Heater Installation and Operation Manual 41
This conguration requires the use of a Concentric Vent
Termination
2 in. or 3 in. PVC/
Concentric Side Wall
This conguration requires the use of a Concentric Vent
Termination
2 in. or 3 in. PVC/CPVC
2 in. or 3 in. Schedule
40 PVC/CPVC or ABS Snorkel
2 in. or 3 in. Schedule 40
PVC/CPVC or ABS Standard
2 in. or 3 in. Schedule
or Tee Side Wall
2 in. or 3 in. Schedule
40 PVC/CPVC or ABS Tee
2 in. or 3 in. PVC
MUST NOT be
brought together
into a single
PVC pipe using
1. Direct Vent (Twin Pipe)
Twin Pipe Example Vent Applications
Single
Pipe
Air
Vent Sizes
Vent Lengths
•
•
WARNING
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