Water Pressure In The Central Heating System - Atag 41-310-12 Operating Instructions Manual

Water pressure in the central heating system

Message ' Water pressure
too low' on your ATAG
thermostat.
On the display of the ATAG
Brain Q as well as the
ATAG Smart a low water
pressure can be indicated.
For further information see
the relevant user manual.
10
The installation will function optimally with a water
pressure of between 1,5 and 1,7 bar.
If the water pressure drops below 1 bar, the display
will show FILL. During this message the boiler will
remain functioning at a reduced level. After
replenishing the system to just above 1,5 bar the
message FILL will disappear and the boiler will
function normally again.
When the water pressure drops below 0,7 bar, the
display will show a flashing FILL text.
The boiler will shut down and will function normally
again only after replenishing the system to just
above 1,5 bar.
To retreive the water pressure on the display from
the Good reading:
- Press the Step key once briefly.
The water pressure will be shown.
Press the Step key briefly to return to the Good
reading.