Operating instructions

66
Parameter address
A5:...
With heating circuit pump logic function: Heating cir-
cuit pump "OFF"
5 AT > RT
set
+ 1 K
6 AT > RT
set
7
to
AT > RT
set
- 1 K
15 AT > RT
set
- 9 K
Coding in the delivered condition Possible change
Summer eco function absolute
A6:36 Extended economy func-
tion disabled (only for
weather-compensated
control units)
A6:5
to
A6:35
Extended economy control
enabled, i.e. the burner and
heating circuit pump will be
switched OFF and the
mixer closed at a variable
adjustable value between 5
and 35 °C plus 1 °C. Base
value is the adjusted out-
side temperature. This
value is based on the
actual outside temperature
and a time constant that
takes the cooling down of
an average building into
consideration.
Mixer eco function
A7:0 Without mixer economy
function (only for a
weather-compensated
control unit and heating
circuit with mixer)
A7:1 With mixer economy func-
tion (extended heating cir-
cuit pump logic):
Heating circuit pump also
"OFF":
■ If a mixer has been
closed for longer than
20 min.
Heating pump "ON":
■ If the mixer changes to
control function
■ If there is a risk of frost
Code 1
Heating circuit 1, heating circuit 2, heating…
(cont.)
5457 552 GB