Operating instructions

68
Coding in the delivered condition Possible change
Extended economy function adjusted outside temperature
A6:36 Extended economy con-
trol 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
stop and the mixer will be
closed at a variable value,
adjustable between 5 and
35 °C plus 1 °C. The base
value is the adjusted out-
side temperature. This val-
ue is based on the actual
outside temperature and a
time constant, which takes
the cooling down of an
average building into con-
sideration.
Extended economy function mixer
A7:0 Without mixer economy
function (only for weath-
er-compensated control
units and heating circuits
with mixer)
A7:1 With mixer economy func-
tion (extended heating cir-
cuit pump logic):
Heating circuit pump also
"OFF":
■ If the mixer has been
closed for longer than
20 min.
Heating circuit pump
"ON":
■ If the mixer changes to
control function
■ If there is a risk of frost
Pump idle time, transition reduced mode
A9:7 With pump idle time:
Heating circuit pump
"OFF" if the set value is
altered through a change
in operating mode or
through a change in the
set room temperature
(only for weather-com-
pensated control units)
A9:0 Without pump idle time
A9:1
to
A9:15
With pump idle time, ad-
justable from 1 to 15. The
higher the value, the longer
the pump idle time.
Code 1
"Heating circuit ..."/group 5
(cont.)
5772 909 GB