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A-Series CFWH installation guide 01-18
PCB interface and dip switch settings
The PCB interface and dip switch settings must only be changed by a licensed
gasfitter. They have been provided as there may be a requirement to change the
temperature of the water delivered from the water heater or change the dip switch
settings if fitting a flue diverter.
Care must be taken when changing the temperature or dip switch settings as they can be
easily switched or bumped into the wrong position. Fully check the operation of the water
heater before leaving including the temperature of the water delivered.
The cover of the water heater will need to be removed to carry out this operation. As this will
expose live mains voltage wiring
please disconnect the power supply before removing the
front cover
.
We wish to draw your attention to the requirements of the New Zealand Building Code and
compliance document G12. This requires that water delivered to sanitary fixtures be no more
than 55 °C. Increasing the water heater set temperature will require that you protect all sanitary
fixtures to which the appliance is plumbed with suitable tempering valves or something similar.
Rinnai will accept no liability for issues arising out of the use of this information.
If you have any doubts about the performance of the water heater, please contact Rinnai by
phoning 0800 RINNAI (0800 746 624).
The following information details settings for the Rinnai INFINITY A-Series models only. They are
not applicable for other models.
Basic operation of the PCB interface
• To place the PCB into programming mode press PB2 until the LED digital display shows
1
,
noting that the current set value will be displayed shortly afterwards.
• To alter a value press PB4, each press of the button will select the next available value.
• To change to another menu, press PB3, each press of the button will select the next available
menu.
• To exit the programming mode and save the selected settings press PB2 until the LED display
goes blank.
Note:
• If no buttons are pressed the PCB will automatically exit programming mode after 10 mins.
• Exiting programming mode sets the value last viewed as the current value.
WARNING
