Viessmann VITOLIGNO 300-C Installation And Service Instructions Manual page 85

Vitoligno 300-C Installation/Service
Coding 1
(continued)
Coding in the factory set condition
Heating
Remote control
A0:0
Summer eco function room temperature
A5:5
Parameter address "A5":
1
2
3
4
5
6
7 to 15
Summer eco function absolute
A6:36
Mixing valve economy function
A7:0
Is available if a remote
control is connected.
Without remote control
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)
Heating circuit pump "Off"
Summer eco function active
OT > RTset + 5 K
OT > RTset + 4 K
OT > RTset + 3 K
OT > RTset + 2 K
OT > RTset + 1 K
OT > RTset + 1 K
OT > RTset − 1 K
to
15 OT > RTset − 9 K
Extended economy mode
disabled
Without mixing valve
economy function
Possible change
A0:1 With Vitotrol 200A.
Recognized automatically.
A0:2 With Vitotrol 300A.
Recognized automatically.
A0:3 With Vitotrol 350.
Recognized automatically.
A5:0 Without heating circuit pump logic
function
A5:1 With heating circuit pump logic
to function (see the following table)
A5:15
A6:5 Extended economy mode active, i.e. the
to heating circuit pump is switched off at
A6:35 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"
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":

or...

Mixing valve changes to control
function
If there is a risk of frost
Coding
85