Viessmann Vitodens 200-W B2HE Installation And Service Instructions Manual page 76

Diagnosis and service checks
Checking outputs (actuator test)
Display
Heating circuit pump 2
speed
Heating circuit pump 3
speed
Mixer, heating circuit 2
Mixer, heating circuit 3
DHW group (domestic hot water)
Primary circuit pump,
set speed
3-way valve target posi-
tion
Cylinder loading pump
DHW circulation pump
Transfer pump hygiene
function
Circulation pump for cyl-
inder heating
Solar group
Solar circuit pump, set
speed
Transfer pump hygiene
function
Solar circulation pump
Solar 3-way valve, tar-
get position
76
(cont.)
Explanation
Set value Speed, heating circuit pump, heating circuit 2 with mixer in %
Set value Speed, heating circuit pump, heating circuit 3 with mixer in %
Open Output for "Mixer open" enabled (mixer extension kit)
Stop Current position is maintained
Close Output for "Mixer close" enabled
Open Output for "Mixer open" enabled (mixer extension kit)
Stop Current position is maintained
Close Output for "Mixer close" enabled
Set value Internal circulation pump in %
Heating Diverter valve set to heating mode
Middle Diverter valve in central position (filling/draining)
DHW Diverter valve set to DHW heating
On
Off
On
Off
On
Off
On
Off
Set value Speed, solar circuit pump in %
On
Off
On
Off
Open
Close
Stop