Temperatures, Boiler Coding Card And Brief Scans - Viessmann Vitodens 300 Service Instructions Manual

Service scans

Temperatures, boiler coding card and brief scans

Weather-compensated control units
1. For two heating circuits – select
heating circuit:
Press a.
&
1r flashes on the display.
&
Select heating circuit A1 (heating
circuit without mixer):
Press d.
&
Select heating circuit M2 (heating
circuit with mixer):
– Press a.
– 2r flashes on the display.
– 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
& 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
& Mixed flow temp., set
& Mixed flow temp., actual
&
Boiler coding card
& Brief scan 1
to
Brief scan 8
64
2. Press K and G simultaneously
for approx. 2 seconds.
3. Select the required scan with a
and b.
4. Press d.
The adjusted outside temperature can be reset
to the current outside temperature with e.
Heating circuit with mixer
Heating circuit with mixer
Low loss header
Low loss header