Viessmann B1KE Combi Series Installation And Service Instructions Manual page 68

Diagnostics and Service Checks
Checking Outputs
The following actuator functions can be controlled subject to the system and boiler equipment level:
Display
Boiler group
Fan speed
Burner modulation,
target value
3-way valve target
position
Heating group
Primary circuit pump
speed
3-way valve target
position
Heating circuit 1 pump
speed
DHW group (domestic hot water)
Primary circuit pump,
target speed
3-way valve target
position
Tank loading pump
DHW recirculation
pump
Transfer pump hygiene
function
DHW pump
68
(actuator test)
(continued)
Target value
Off

Minimum heating output

Maximum heating output

Maximum DHW output

Heating
Middle
DHW
Target value
Heating
Middle
DHW
Target value
Target value
Heating
Middle
DHW
On
Off
On
Off
On
Off
On
Off
Vitodens 100-W, B1HE/B1KE Combi Installation/Service
Explanation
Burner fan speed in rpm (rotations/minute)
Modulation level
(in accordance with specific boiler settings)
3-way diverter valve set to heating operation
3-way diverter valve in central position (filling/draining)
3-way diverter valve set to DHW heating
Internal circulation pump speed in %
3-way diverter valve set to heating operation
3-way diverter valve in central position (filling/draining)
3-way diverter valve set to DHW heating
Speed, heating circuit pump, heating circuit 1 without mixing
valve in %
Internal circulation pump in %
3-way diverter valve set to heating operation
3-way diverter valve in central position (filling/draining)
3-way diverter valve set to DHW heating