Installation manual
Rinnai New Zealand Limited Neo Installation Manual: 11906-B
02-11
23
Test pressures
High pressure setting
4. Turn the appliance on and set the heater to its highest setting (refer operation manual).
Using a screw driver hold the low pressure adjusting screw stationary while adjusting the
high pressure setting nut with a 10 mm spanner. Turning the nut clockwise will increase the
outlet pressure while turning the nut anti-clockwise will decrease the outlet pressure.
Low pressure setting
5. Disconnect the power to the Gas Control Valve (GCV) by separating the connector for the
power supply (yellow wires). The GCV will automatically default to low pressure operation.
Using a 10 mm spanner hold the high pressure adjusting nut stationary while adjusting
the low pressure screw with a screw driver. Turning the screw clockwise will increase the
outlet pressure while turning the screw anti-clockwise will decrease the outlet pressure.
6. Replace the dust cap to its original position. It’s important this is done correctly to ensure
the correct operation of the GCV.
7. Reconnect the power to the GCV by rejoining the connector (yellow wires).
8. After conrming the correct pressures, turn the appliance o, remove the manometer,
tighten the ATPP sealing screw and leak test.
9. Turn the appliance on and o a few times to check ignition.
10. When you are satised that the heater is working correctly, reassemble and start the
appliance to check the ame pattern (refer next page).
Decrease
Increase
Low pressure
adjusng screw
Increase
Decrease
High pressure
adjusng nut
Cap
POV power connector
Appliance test
point pressure