Set Appliance State:

Mains Power Off
Turn Hot Water Tap On
Boiler on off switch On
Boiler DHW thermostat set to MAX
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

With DHW flow rate of approximately 12 l/min (2.6 gall/min) is there a temperature rise of approximately 35 °C and is the operation satisfactory?