Set Appliance State:

Mains Power Off
Turn Hot Water Tap On
Selector Switch in Hot Water Position
DHW temperature set to MAX
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

With a flow rate of 9.8 litres a minute is there a temperature rise of approximately 35°C and is operation satisfactory?
Note:
If flow rate of 9.8 litres a minute is not possible
the temperature rise will be increased.
Refer to table for alternative values and
use the highest flow rate obtainable.