Set Appliance State:
Mains Power Off
DHW supply turned off
(should be a lever before the expansion vessel,
turn off at mains stopcock if necessary)
Open hot water tap
(should be a lever before the expansion vessel,
turn off at mains stopcock if necessary)
Open hot water tap
Observation:
Check the pressure of the secondary expansion vessel.
It should be 2.5 - 2.8 bar.
Note:
Expansion vessel is located external to appliance.
It should be 2.5 - 2.8 bar.
Note:
Expansion vessel is located external to appliance.
