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Coding Level 2
(continued)
Overview of coding addresses
Coding (factory default setting)
Boiler circuit, mixing valve circuit
A4:0
With frost protection
A5:5
With heating circuit pump logic function
(economy circuit): Heating circuit pump
(economy circuit): Heating circuit pump
"OFF" if the outdoor temperature
"OFF" if the outdoor temperature
(AT) is 1 K higher than the room
temperature setpoint (RTset)
AT > RTset + 1 K
Coding (factory default setting)
Boiler circuit, mixing valve circuit
A6:36
Extended economy function disabled
A7:0
Without mixing valve economy function
A8:1
Heating circuit with mixing valve creates
a demand for the circulation pump
(continued)
Parameter
coding address
coding address
A5:...
1
2
3
4
5
6
7 to 15
Possible change
A4:1
No frost protection, adjustment
only possible if coding address "A3: -9"
has been selected.
Note:
Observe the note for code "A3"
A5:0
Without heating circuit pump logic function
A5:1
With heating circuit pump logic function:
to
Heating circuit pump "OFF", if (see the
A5:15
following table)
Possible change
A6:5
Extended economy mode is enabled, i.e. the
to
burner and heating circuit pump are switched
A6:35
OFF and the mixing valve will be closed at
a variable value that is adjustable between 5
and 35°C plus 1°C. This value is based on
the dampened outdoor temperature,
comprising the actual outdoor temperature and
a time constant that takes the cooling down
of an average building into consideration.
A7:1
With mixing valve economy function
(extended heating circuit pump logic):
Heating circuit pump also "OFF" if the mixing
valve was closed longer than 20 min. heating
valve was closed longer than 20 min. heating
pump "ON":
pump "ON":
H If the mixing valve changes to control mode
or
H If there is a risk of frost
A8:0
Heating circuit with mixing valve creates no
demand for the circulation pump
With heating circuit pump logic
function: Heating circuit pump
function: Heating circuit pump
OFF, if
AT > RTset + 5 K
AT > RTset + 4 K
AT > RTset + 3 K
AT > RTset + 2 K
AT > RTset + 1 K
AT > RTset
AT > RTset - 1 K
to
AT > RTset - 9 K
Coding
47
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