Viessmann VITODENS 300 WB3A, Service Instructions Manual

Page: 80 / 148

Weather-compensated control units
1. For two heating circuits
–
select
heating circuit:
& Press
a
.
1
r
flashes on the display.
& Select heating circuit A1 (heating
circuit without mixer):
Press
d
.
& Select heating circuit M2 (heating
circuit with mixer):
–
Press
a
.
–
2
r
flashes on the display.
–
Press
d
.
2. Press
K
and
G
simultaneously
for approx. 2 seconds.
3. Select the required scan with
a
and
b
.
4. Press
d
.
The following values can be scanned, subject to the actual equipment level:
&
Slope A1
–
Level A1
&
Slope M2
–
Level M2
&
Adj. outside temp.
&
Outside temp., actual
The adjusted outside temperature can be reset
to the current outside temperature with
e
.
&
Boiler temp., set
&
Boiler temp., actual
&
DHW temp., set
&
DHW temp., actual
&
DHW outlet temp., actual
&
DHW outlet temp., set
&
Flow temperature, set
&
Flow temperature, actual
Heating circuit with mixer
Heating circuit with mixer
&
Mixed flow temp., set
&
Mixed flow temp., actual
Low loss header
Low loss header
&
Boiler coding card
&
Brief scan 1
to
Brief scan 8
Temperatures, boiler coding card and brief scans
64
Service scans
56
92
550
GB