Gas Piping Notes - Rinnai V2532FFU Series Operation & Installation Manual

I N S TA L L E R ' S I N S TA L L AT I O N I N S T R U C T I O N S
1) A manual gas control valve must be placed upon the gas supply line to the Rinnai Water
Heater. A union can be used on the connection above the shut off valve for the future
servicing or disconnection of the unit.
2) Check the type of gas and the gas inlet pressure before connecting the Rinnai Water
Heater if the Rinnai Water Heater is not of the gas type that the building is supplied with,
DO NOT connect the water heater. Contact the dealer for the proper unit to match the gas
type.
3) Minimum and Maximum Gas pressures are listed below:
* Minimum value is for input adjustment
Natural Gas:
WARNING: Conversion of this unit from natural gas to propane or propane to natural
gas CANNOT be done in the fi eld.
4) After completion of gas pipe connections, all joints including the heater must be checked
for gas-tightness by means of leak detector solution, soap and water, or an equivalent
nonfl ammable solution, as applicable.
soap and water, may cause corrosion or stress cracking, the piping must be rinsed with
water after testing, unless it has been determined that the leak solution is non-corrosive.
5) The Rinnai Water Heater must be leak tested before it is placed into operation.
6) The Rinnai Water Heater and its individual shut-off valve must be disconnected from the
gas supply piping system when pressure testing of the gas supply piping system at test
pressures greater than 1/2 psi (3.5 kPa).
7) Always use approved connectors to connect the unit to the gas line. Always purge the gas
line of any debris before connection to the water heater.
8) The Rinnai Water Heater must be isolated from the gas supply piping system by closing it's
individual manual shutoff valve during any pressure testing of the gas supply piping system
at test pressures equal to or less than 1/2 psi (3.5 kPa).
9) The Rinnai Water Heater Installation location must provide adequate Combustion and
Ventilation airfl ow.
Rinnai America

Gas Piping Notes

Minimum 6" WC
Maximum 10.5" WC
Propane Gas:
Caution: Since some leak test solutions, including
40
Minimum 10"WC
Maximum 13.5" WC
FF Models