Unit installation

7
Checking the high limit safety cut-out setting
Never set the high limit safety cut-out
higher than 110 °C, set it to a maximum
of 110 °C if required.
Control unit installation and serv-
ice instructions
Filling the heating system with water and venting the system
Record the fill volume, water hardness
and pH value on page 29 and 30.
Note
Observe the "Water quality require-
ments" on page 62.
Filling the siphon with water
1. Undo the siphon and fill with water
(otherwise flue gas may escape).
2. Check that the condensate can drain
freely.
3. Refit the siphon.
Commissioning the system
Control unit operating and serv-
ice instructions, and neutralising
system operating instructions
1. Check the heating system pressure.
Permissible boiler operating pres-
sure: 4 bar
Commissioning, inspection, maintenance
Further details regarding the individual steps
5692 907 GB