American Standard TCWH-199-AS Installation Start-Up Maintenance Parts page 30

Tankless condensing water heater
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TANKLESS WATER HEATER
Figure 12
30
OUTDOOR COMBUSTION AIR
(SINGLE PIPE)
UPPER
AIR DUCT
LOWER
AIR DUCT
NOTE: These drawings are meant to demonstrate system venting only.
The installer is responsible for all equipment and detailing required by local codes.
EXAHUST VENT
BOILER
OR
HEATER

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