Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Attach U gauge to burner pressure test point
Ensure appliance is cool before starting the test
Hot water tap ON and fully open
Ensure appliance is cool before starting the test
Hot water tap ON and fully open
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow the fan to run and the burner to ignite.
When the burner is alight try to adjust the maximum pressure to the correct level as per the table.
Turn the larger outer nut clockwise to increase the pressure and anti-clockwise to decrease it.
It is advisable to hold the inner plastic screw still whilst making adjustments otherwise the
minimum pressure can accidentally be adjusted. It is good practice to confirm this has not
happened, click here if you want to re check the minimum burner pressure.
Can the maximum pressure be set correctly?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
When the burner is alight try to adjust the maximum pressure to the correct level as per the table.
Turn the larger outer nut clockwise to increase the pressure and anti-clockwise to decrease it.
It is advisable to hold the inner plastic screw still whilst making adjustments otherwise the
minimum pressure can accidentally be adjusted. It is good practice to confirm this has not
happened, click here if you want to re check the minimum burner pressure.
Can the maximum pressure be set correctly?
Note:
When pressure gauge is removed the pressure test point should be tightened and checked for gas tightness.
Isolate as per TOPs P4
and refit as necessary