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Vitodens 100-W, B1HA series & B1KA Combi Technical Data
Start-up and Maintenance
Start-up and Maintenance
Vitodens 100-W Venting Options
For detailed information refer to the Vitodens Venting
System Installation Instructions.
Electrical Connection
All electrical connections are made to the boiler’s
integrated boiler control unit (120VAC, 1 phase, 60 Hz,
12 amps).
Use disconnect means and power service switch
as per local code requirements.
Control Unit
Function and construction:
The control is integrated into the Vitodens 100-W boiler.
Integrated diagnostic system
For room temperature-dependent operation,
an external control or a room temperature thermostat
may be connected
To control DHW temperature
External heat demand
OpenTherm (OT) or OT input module 0-10VDC (accessory)
Viessmann outdoor temperature sensor (OTS)
(field
wiring)
OpenTherm (OT) (field wiring)
Instantaneous DHW control (B1KA)
The control unit consists of:
LCD
Display
Push button operation and setting of boiler water
temperature
Temperature adjustable high limit
Boiler temperature sensor
Burner fault display
Burner fault reset
Pressure
gauge
Fuse
Boiler temperature sensor
The boiler temperature sensor is connected to the control
unit and built into the boiler.
Frost protection
Frost protection is continuously active. The burner is
switched ON when the boiler water temperature reaches
41°F (5°C) and is switched OFF again when the boiler
water temperature reaches at least 59°F (15°C)
[but not more than 68°F (20°C)].
Venting Options / Electrical Connections
Installation
For details on the control, refer to the
Vitodens 100-W Operating Instructions.
