125
Output
aBJ
The following functions can be connec-
ted to output
aBJ
:
■ Feed pump to substation
or
■ DHW circulation pump
or
■ Fault message facility
Function assignment
Select the function of output
aBJ
via
code 36 at the boiler control unit.
Control functions
External heating program changeover
The "External heating program change-
over" function is connected via extension
EA1. There are 3 inputs available at
extension EA1 (DE1 to DE3).
The function is selected via the following
codes:
Heating program changeover
Code
Input DE1
3A:1
Input DE2
3b:1
Input DE3
3C:1
Assign the heating program changeover
function for the respective heating circuit
via code d8 at the boiler control unit:
Heating program changeover
Code
Changeover via input DE1
d8:1
Changeover via input DE2
d8:2
Changeover via input DE3
d8:3
You can select which direction the heat-
ing program changeover takes in coding
address "d5":
Function description
External extensions (accessories)
(cont.)
5692 843 GB