Getting Started - Navien CH-180 Installation Manual

Getting Started:

Navien units come from the factory configured for use with either Liquid Propane (LP) or
Natural Gas (NG). Before starting the installation, check the rating plate (side of unit) of
the combination Water Heater / Heating Boiler to ensure the unit matches gas type, gas
pressure, water pressure and electrical supply. If the unit does not match the following
requirements, Do Not Install;
Use only the gas type indicated on the
rating plate of the Navien Combination
Water Heater / Heating Boiler. Using a
different gas type will cause abnormal
combustion and Water Heater / Heating
Boiler malfunction.
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