Pressure Relief Valve - Navien NR-180(A) Operation & Installation Manual

Pressure Relief Valve

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Gas Supply
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Is there an approved pressure relief valve installed on the hot water outlet?
Does the rating plate on the pressure relief valve indicate a BTU level equal to
the maximum BTU rating of the water heater?
Is the pressure relief valve ¾"?
Has the pressure relief valve been installed on the hot outlet pipe close to the
exit of the water heater?
Has a discharge drain tube been installed from the pressure relief valve to within
6~8" of the floor?
Does the gas supply match the water heater's gas type indicated on the rating
plate?
Is the gas line a minimum of ¾"ID (inner diameter)?
Is the gas supply line length and diameter sufficient to deliver the required
BTUs?
Has the gas supply line pressure been measured?
Is the gas supply pressure sufficient for proper operation (within the ranges
indicated in the specifications section of this manual)?
Is the gas line is equipped with manual full port?
Has the gas line been pressure tested and/or have all fittings been checked for
leaks?
Has the gas company inspected the installation (if required)?