Set Appliance State:

Isolate Mains Power to appliance as per TOPs P4
CH Demand
Attach temperature probe to pipe as indicated by the red arrow
Set boiler temperature control for CH to MAX
WARNING! - Mains voltage is expected during test follow
TOPs P4 live testing procedure
Mains Power On

Measurement:

Run the appliance and allow the system to heat.
Note:
To speed up the process the heating load can be reduced by turning off some radiators. If overheat occurs isolate appliance immediately.
Please choose from one of the options below:
BOILER MAINTAINS OR SHUTS DOWN AT APPROXIMATELY 90°C
BOILER GOES TO OVERHEAT BEFORE 90°C
TEMPERATURE EXCEEDS 90°C AND CONTINUES TO HEAT