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154
External blocking and fault message input
Code
Input DE1
3A:4
Input DE2
3b:4
Input DE3
3C:4
The effect on the internal circulation
pump is selected in coding address
"3E" in the
"General"
group.
The effect on the respective heating cir-
cuit pump is selected in coding address
"d6" in the
"Heating circuit"
group.
External demand
The "External demand" function is con-
nected via extension EA1. There are 3
inputs available at extension EA1 (DE1
to DE3).
The function is selected via the following
coding addresses in the
"General"
group:
External demand
Code
Input DE1
3A:2
Input DE2
3b:2
Input DE3
3C:2
The effect on the internal circulation
pump is selected in coding address
"3F" in the
"General"
group.
The effect on the respective heating cir-
cuit pump is selected in coding address
"d7" in the
"Heating circuit"
group.
The minimum set boiler water tempera-
ture in case of external demand is selec-
ted in coding address "9b" in the
"Gen-
eral"
group.
Venting program
During the venting program, the circula-
tion pump will be alternately switched on
and off for 30 s respectively over a period
of 20 min.
The burner is switched off during the
venting program.
Activate venting program: See "Venting
the heating system".
Screed drying
When activating screed drying, observe
the information provided by the screed
manufacturer.
Function description
Control functions
(cont.)
5585 174 GB