Set Appliance State:

Mains Power Off
CH Demand
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Test 1:
Press and hold the 'mode' button (👆) for 10 seconds until a flashing '0' appears.
 
Press the '-' button and scroll through until '96' (installer mode) is shown on the screen, then press the 'mode' button again.
 
Press the '+' button and scroll through until '8' is shown on the left of the screen, then press the 'mode' button again.
 
Set the appliance to maximum by pressing the '+' button until '2' is shown on the right hand side of the screen.
Press the 'mode' button again to confirm.
 
Readings at maximum should be within the parameters outlined in ADAPT / TOPS.
Test 2:
Set the appliance to minimum by pressing the '-' button until '1' is shown on the right hand side of the screen.
Press the 'mode' button again to confirm.
 
Readings at minimum should be within the parameters outlined in ADAPT / TOPS.
After checking the combustion, press and hold the 'mode' button for 10 seconds to return to the normal mode.