Î Enter the expert user code 0262 on the controller.
Î Register the extension module with the controller (In-/Outputs menu).
Î Select module 1.
Î Select heating circuit 2.
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Î Select the relays.
If at least 1 relay is free on the controller, it will be fi rst of all assigned to the
second heating circuit. The relays for HC2 have to be completely assigned to the
extension module.
ACTUAL state
Î Select mixer closed and M1-R3.
TARGET state
!