Procedure

1. Isolate gas and water supplies to the appliance with the valves under the appliance and remove the front cover.
2. Disconnect the inlet water connection from the water valve.
3. Remove the fixing brackets on both sides of the burner (between burner and backing plate).
4. Loosen 2 gas valve securing screws and remove the entire gas valve/water valve assembly from the unit.
5. Remove the gas pipe and regulator from the backing plate and replace with the Natural Gas pipe and regulator.
6. Loosen 2 securing screws between the gas valve and the burner assembly and replace the burner with the Natural Gas burner assembly refitting the ross ignition bar to rear of the new burner.
7. Refit the gas valve/water valve assembly to the appliance including fixing brackets and tighten the gas valve securing screws.
8. Loosen the 2 water valve securing screws and remove the water valve from the appliance.
9. Remove the microswitch from the appliance by removing hte fastening screw underneath the gas valve (Note: Gas valve spindle cannot be removed without removing microswitch).
10. Remove the ICU fromthe appliance to allow access to the gas valve cap locking screw.
11. Remove gas valve cap by turning anti-clockwise and easing the cap away from the gas valve remembering the spring is under cap.
12. Remove the poppet valve, spring and gas valve replacing with the Natural gas poppet valve and gas valve stem (spring remains the same).
13. Refit the gas valve cap ensuring to refit lthe ocking screw to hold the cap in place and refit the ICU to the appliance.
14. Refit the microswitch to the appliance ensuring it is locked into the end of the gas valve spindle.
15. Refit the water valve and reconnect the water inlet connection to the appliance.
16. Turn on gas and water supplies to the appliance and test for leaks.
17. Recommission the appliance to Natural Gas specifications