Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
Turn Hot Water Tap On
DHW temperature control to MAX
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
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
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Observation:
Reset appliance as necessary.
Allow boiler to complete its self check.
Allow FGA readings to stabilise and check that:
O₂ levels are equal or greater than 20.6%
CO₂ levels are less than 0.2%
All performance testers supplied by British Gas are capable of measuring O₂.
Please refer to performance tester instructions for information.
Allow boiler to complete its self check.
Allow FGA readings to stabilise and check that:
All performance testers supplied by British Gas are capable of measuring O₂.
Please refer to performance tester instructions for information.
Isolate as per TOPs P4
and refit as necessary