Set Appliance State:

NO demands
WARNING! Mains voltage is expected during test, follow TOPs P4 live testing procedure
Mains Power On

Observation:

Inspect the level of system pressure and check that there is no air in the boiler and system.
Note:
1. System pressure should be set between 1.0 and 1.5 bar.
2. It is also advisable to check the auto air vent on the pump hydroblock.