Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Refit combustion chamber if this has been removed
Place FGA probe in air inlet test point
(point 2 on diagram), ensure it is fitted
securely to prevent any release of flue gases
Place FGA probe in air inlet test point
(point 2 on diagram), ensure it is fitted
securely to prevent any release of flue gases
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset appliance as necessary and allow the boiler to complete its self check.
Set the boiler to maximum output service mode by holding
the button for approx 5 seconds.
Allow FGA readings to stabilise and check that:
O² levels are equal or greater than 20.6%
CO² levels are less than 0.2%
To exit service mode press the button once.
Set the boiler to maximum output service mode by holding
the button for approx 5 seconds.
Allow FGA readings to stabilise and check that:
To exit service mode press the button once.
Isolate as per TOPs P4
and refit as necessary