Set Appliance State:
| Isolate Mains Power to appliance as per TOPs P4 |
CH Demand
Remove PCB Cover
Safely connect a link between pin 1 and 2 on connector X4a
Attach U-gauge to burner pressure test point
Selector Switch in Heating & Hot Water Position
CH temperature set to MAX
Safely connect a link between pin 1 and 2 on connector X4a
Attach U-gauge to burner pressure test point
Selector Switch in Heating & Hot Water Position
CH temperature set to MAX
| WARNING! - Mains voltage is expected during test follow TOPs P4 live testing procedure |
Measurement:
Allow the boiler to ignite and establish and observe the U-gauge.
The required burner pressure will depend on the size of the central heating system and may be set at any point between 2.5mb and 9.5mb.
The factory set pressure is 6.0mb and should be appropriate
for most systems (16.7kW).
Is the boiler's maximum central heating input set to a value that is
correct for the system it is fitted to?
The required burner pressure will depend on the size of the central heating system and may be set at any point between 2.5mb and 9.5mb.
The factory set pressure is 6.0mb and should be appropriate
for most systems (16.7kW).
Is the boiler's maximum central heating input set to a value that is
correct for the system it is fitted to?
Isolate as per TOPs P4
and refit as necessary