Rinnai Neo RIB2312L, Installation Manual

Neo RIB2312 installation guide: 12148-A 01-17 

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25

Commissioning

Check for the correct settings

The appliance display settings are shown on 

the LED display of the control PCB. If any of 

the settings are incorrect, check the appliance 

data plate (front left hand side).

Steps required to commission the PCB

Only required if the PCB is being replaced or 

after a gas type conversion—this needs to be 

done BEFORE the gas pressures are tested.

1.  Turn on the gas supply. 

2.  With the appliance OFF, press ‘Test’, the 

gas type code will display. Press the ‘Up’ 

and ‘Down’ buttons to obtain the gas code 

for the unit, and press ‘Set’ to lock in the 

code. 

A1 = NG  L1 = LPG

The gas pressures can now be checked if 

required.

Gas pressure setting

Always check the pressures against those 

printed on the data plate of the appliance. If 

no adjustment is required during some stages 

of the process you will still need to push ‘Set’ 

to go to the next setting.

Checking the supply pressure

1.  Remove the inlet test point screw and 

connect the manometer hose. 

2.  Press the heater ON/OFF button to start 

the ignition sequence, ensuring the 

correct flowing pressure is available with 

all other gas appliances operating on high. 

3.  Press the heater ON/OFF button to stop 

the heater operation. 

4.  Disconnect the manometer hose and 

replace the inlet test point screw.

Checking the pilot pressure

1.  Remove the pilot test point screw and 

connect the 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 display will show PL. 

4.  Adjust the pilot pressure as required by 

manually adjusting the pilot regulator. 

Press the ON/OFF button to stop the 

heater operation. 

5.  Disconnect the manometer hose and 

replace the pilot test point screw.

The gas pressures of the appliance are factory pre-set. 

When commissioning the appliance electrical power will need to be 
connected. Exercise caution as there is potential for electric shock from 
exposed wiring and circuitry. DO NOT leave the appliance unattended when 
the power is connected and the panels are removed.

CAUTION

Control panel PCB