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Setting the Pilot Pressure
Before commencing with the setting of the burner pressures the correct flue length
MUST be set.
IMPORTANT
The flue length dip switch is factory set to L - F (long flue). For information regarding
the S - F (short flue) setting, refer to the service manual or contact Rinnai.
1.
Remove the pilot test point screw and connect the manometer hose.
2.
Press the heater 'ON/OFF' button to start the ignition sequence, ensuring the correct inlet pressure is available
with all other gas appliances operating on high.
3.
Press the 'Test' button twice, the heater will light to main burner on its lowest setting (stage 1) and the display
will show PL .
4.
Adjust the pilot pressure as required by manually adjusting the pilot pressure adjustment screw. Press the
'ON/OFF' button to stop the heater operation.
5.
Disconnect the manometer hose and replace the pilot test point screw.
Setting the Operating Pressure
1.
Remove the main burner test point screw and connect the positive manometer hose.
2.
Press the heater 'ON/OFF' button to start the heater.
3.
Press the 'Test' button twice, the heater will light to the main burner on its lowest setting (stage 1) and the
digital display will show PL .
4.
Press the 'Up' or 'Down' buttons to set the pressure for the appropriate gas type. Press the 'Set' button once
to save the setting.
For RHFE1500 ONLY:
5.
The display will now show PF (main burner stage 3). Press the 'Up' or 'Down' buttons to set the pressure for
the appropriate gas type. Press the 'Set' button once to save the setting.
6.
The display will show PA (main burner stage 4). Press the 'Up' and 'Down' buttons to set the pressure for
the appropriate gas type. Press the 'Set' button once to save the setting. It can take several seconds for the
solenoid to open and the pressure to stabilise.
7.
The display will show PH (main burner stage 7). Press the 'Up' or 'Down' buttons to set the differential for the
appropriate gas type. Press the 'Set' button once to save the setting.
8.
For RHFE0800F/1000 the display will show:
For RHFE1500 the display will show: 70
If the display does not change, then there is a commissioning error - repeat steps.
9.
Press the 'ON/OFF' button to stop the unit.
10. Remove the manometer hose and replace the gas control test point screw.
Commissioning is now complete.
Rinnai
25
COMMISSIONING
RHFE0800F_1000_1500 IM
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