Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
CH Demand
Gain access to PCB (use Insulation Mat as required)
Connect a pressure gauge to the fan pressure test point
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Allow fan to run and burner to ignite.
Using the plastic tool provided set the mode switch
to max and allow the appliance to operate the
appliance in maximum output mode.
Measure the fan pressure.
The fan pressure should be in the white area of the table.
Note:
Refit fan pressure test point cap
after test is completed.