60
Coding
Code 2
(cont.)
Coding in the factory default setting
Possible change
Mixing valve circuit
(cont.)
A5: 5
With heating circuit pump logic function (energy
A5: 0
Without heating circuit pump logic function
g
p
p g
(
gy
saving mode):
Heating circuit pump OFF, if the outdoor
temperature (AT) is 1 K higher than the set room
temperature (RT
set
)
AT > RT
set
+ 1 K
A5: 1
A5: 2
A5: 3
A5: 4
A5: 5
A5: 6
A5: 7
to
A5: 15
With heating circuit pump logic function:
Heating circuit pump OFF, if
AT > RT
set
+5 K
AT > RT
set
+4 K
AT > RT
set
+3 K
AT > RT
set
+2 K
AT > RT
set
+1 K
AT >RT
set
AT > RT
set
–1 K
to
AT > RT
set
–9 K
A6: 36
Extended energy saving mode
not
active
A6: 5
to
A6: 35
Extended energy saving circuit active, i.e. the
burner and heating circuit pump will be switched
OFF at a variable value, adjustable between 5 and
35 °C plus 1 °C / 41 and 95 °F plus 1 °F.
This value is based on the adjusted outdoor
temperature, comprising the actual outdoor
temperature and a time constant.
The time constant takes the cooling down of an
average building into account.
A7: 0
Without mixing valve energy saving function
A7: 1
With mixing valve energy saving function
(extended heating circuit pump logic):
Heating circuit pump also OFF, if the mixing valve
was closed longer than 12 min.
Heating circuit pump ON
Mixing valve changes to control function
or
After the DHW tank has been heated up
(for 20 min)
or
If there is a risk of frost
A9: 7
With pump idle period:
A9: 0
Without pump idle time
p
p
p
heating circuit pump OFF in case of set value
modification (by changing the operating mode or
changing the set room temperature)
A9: 1
to
A9: 15
Pump idle time adjustable from 1 to 15
AA: 2
With LON communication module:
With output reduction through temperature
sensor
aJ
A
of the boiler control unit
AA: 0
Without output reduction
aJ
A
AA: 1
No function
5581
529
v1.0
08/2006
