Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
Attach U-gauge to gas valve outlet pressure test point
Hinge down front facia panel and set boiler to MIN output setting
using the gas valve mode switch
Hinge down front facia panel and set boiler to MIN output setting
using the gas valve mode switch
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow boiler to commence its ignition sequence and ignite.
Using a 3mm Allen key adjust the MIN burner pressure to 5.4mbar.
Set boiler to MAX output setting via the gas valve mode switch.
Using a 2mm Allen key adjust the maximum burner pressure to 35.5mbar.
Notes:
1. When U-gauge is removed pressure test point should be tightened & checked for gas tightness.
2. Remember to set the boiler back to normal mode via the gas valve mode switch.
Using a 3mm Allen key adjust the MIN burner pressure to 5.4mbar.
Set boiler to MAX output setting via the gas valve mode switch.
Using a 2mm Allen key adjust the maximum burner pressure to 35.5mbar.
Notes:
1. When U-gauge is removed pressure test point should be tightened & checked for gas tightness.
2. Remember to set the boiler back to normal mode via the gas valve mode switch.
Isolate as per TOPs P4
and refit as necessary