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5790 980 - 04
Vitoligno 300-C Installation/Service
Coding
Coding 1
(continued)
Coding in the factory set condition
Possible change
Heating
Remote control
A0:0
Is available if a remote
control is connected.
Without remote control
A0:1
With Vitotrol 200A.
Recognized automatically.
A0:2
With Vitotrol 300A.
Recognized automatically.
A0:3
With Vitotrol 350.
Recognized automatically.
Summer eco function room temperature
A5:5
With heating circuit pump
logic function (economy
control): Heating circuit
pump “Off” when outdoor
temperature (OT) is 1 K
higher than the set room
temperature (RTset)
A5:0
Without heating circuit pump logic
function
A5:1
to
A5:15
With heating circuit pump logic
function (see the following table)
Parameter address “A5”: Heating circuit pump “Off”
Summer eco function active
1
OT > RTset + 5 K
2
OT > RTset + 4 K
3
OT > RTset + 3 K
4
OT > RTset + 2 K
5
OT > RTset + 1 K
6
OT > RTset + 1 K
7 to 15
OT > RTset
−
1 K
to
15 OT > RTset
−
9 K
Summer eco function absolute
A6:36
Extended economy mode
disabled
A6:5
to
A6:35
Extended economy mode active, i.e. the
heating circuit pump is switched off at
a variable value, adjustable from 41°F
to 95°F plus 1.8°F (5°C to 35°C
plus 1°C). The mixing valve is closed.
This value is based on the adjusted
outdoor temperature, comprising the
actual outdoor temperature and a time
constant.
The time constant takes into account
the cooling down of an average
building. Recommended setting:
“A6:16” to “A6:18”
Mixing valve economy function
A7:0
Without mixing valve
economy function
A7:1
With mixing valve economy function
(extended heating circuit pump logic):
Heating circuit pump also “Off”:
The mixing valve has been closing for
longer than 20 minutes
Heating circuit pump “On”:
Mixing valve changes to control
function
or...
If there is a risk of frost
