Commissioning - Rinnai INFINITY N Series Installation Manual

Commissioning

AS/NZS 5601.1, clauses 2.6.8 and 6.11.2, states that every part of a gas installation shall be
commissioned prior to initial use. It is the installer's responsibility to ensure all current
AS/NZS 5601 requirements are met. The URL's provided are links to short videos on how key
steps are performed.
The appliance operation must be tested after installation. Ensure the building occupants do
not have access to the hot water outlets during this procedure.
WARNING
Please note
The Rinnai INFINITY N-Series comes with a factory preset outlet temperature of 55 °C. Also preset
are the regulator and solenoid. DO NOT ADJUST the regulator/solenoid valve of the appliance,
as it is factory preset and electronically controlled and so DOES NOT require ANY adjustment.
DO NOT change the gas type. The gas type MUST be the same as that found on the appliance
labelling. If the gas type differs to that shown on the appliance, DO NOT proceed and contact
Rinnai.
Inlet supply pressure to the appliance MUST BE checked and set within the operating parameters
of the appliance in all instances.
If the appliance can not be adjusted to perform correctly call 0800 RINNAI (0800 746 624) for
assistance.
Steps to commissioning a Rinnai INFINITY water heater
Flush water pipes and gas line
Before final connection of the water heater, flush the gas, hot and cold water supply lines.
Swarf in the gas or water supplies may cause damage, a common problem, which is not
covered by warranty.
Connect the gas line
Purge the gas line of air
Final connection test
Check supply pressure
Operate ALL other gas appliances at their maximum rate. With all gas appliances on maximum
the supply pressure must read between 1.13-3.0 kPa on Natural gas and on LPG 2.75-3.0 kPa.
If the pressure is lower, the gas supply is inadequate and the appliance will not operated to
specification. It is the installer's responsibility to check the gas meter, service regulator and
pipe work for correct operation and sizing, and rectify as required.
PCB settings checked
Refer p.16 for PCB interface layout and functions.
PCB settings checked against parameters listed in the commissioning sheet.
Operate and check for gas leaks
Replace the appliance front cover otherwise the unit won't operate correctly, operate and test
for gas leaks using an electronic leak detector.
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