Rinnai I Series Installation And Operation Manual page 69

PRESSURE RELIEF VALVE (PRV)
Does the PRV comply with the standard for Relief Valves and Automatic Gas Shutoff Devices for Hot
Water Supply Systems ANSI Z21.22, and/or the standard Temperature, Pressure, Temperature and
Pressure Relief Valves and Vacuum Relief Valves, CAN1-4.4?
Did you verify the DHW PRV is rated up to 150 psi and (at least) the maximum Btu/hr of the boiler and
the heating system PRV rated to 30 PSI?
Is the discharge from the PRV piped to the ground or into a drain system as per local codes?
Is the discharge line from the PRV pitched downward and does it terminate 6 in. (152 mm) above the
drains?
Is the discharge end of the line plain (unthreaded) and a minimum of 3/4 in. diameter?
Is the discharge line material suitable for at least 180° F water?
Did you take measures to protect the PRV and PRV discharge line from freezing?
Have you verified the PRV is not plumbed with the condensate drain line?
Have you verified the PRV is not plugged and that reducing fittings, valves, or other restrictions are not
installed in the relief line?
GAS SUPPLY
Did you verify the gas system is appropriately sized?
Did you verify the boiler is rated for the gas type supplied?
Have you performed a gas line and connection leak test?
Did you install a manual gas control valve in the gas line to the boiler?
Is the inlet gas pressure within limits?
Did you purge the gas line of any debris before connecting the boiler?
POWER SUPPLY
Did you confirm that the electricity is supplied from 120 VAC, 60 Hz power source and is in a properly
grounded circuit?
Did you confirm that an extension cord or an adapter plug has NOT been used with the boiler?
COMMISSIONING
Did you prime the pump?
Was the boiler filled to 17-26 PSI?
Was the deaeration process performed on the boiler?
Rinnai I-Series Condensing Boiler Combi Manual
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