Rinnai Demand Duo CX Series Installation Instructions Manual page 16

Commercial hybrid water heating system
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Use this checklist to ensure you have selected
the correct location for the water heater.
The water heater is not exposed to
corrosive compounds in the air.
The water heater location complies with
the required clearances.
The planned combustion air and exhaust
termination locations meet the required
clearances.
The water supply does not contain
chemicals or exceed total hardness that
will damage the heat exchanger.
A standard 3 prong 120 VAC, 60 Hz
properly grounded wall outlet or other
120 VAC, 60 Hz source is available.
The installation must conform with local
codes or, in the absence of local codes,
with the National Fuel Gas Code, ANSI
Z223.1/NFPA 54, or the Natural Gas and
Propane Installation Code, CSA B149.1.
Demand Duo
H-Series with SENSEI CX Installation Instructions
16

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