Viessmann Vitodens 100-W B1HA Series User Manual

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Vitodens 100-W, B1HA/B1KA 26 to 125 Combi Installation/Service
Troubleshooting Steps
1. Establish fault message or diagnose behavior
of system.
2. Look for corresponding cause of fault in the
diagnostics table.
3. Find corrective measures in the table.
4. Perform corrective measures (page 59 to 62).
Note: See page 43 for an overview of controls,
indicators and system components.
Diagnosis
Correction
Changing Room Temperature
In case a separate external room temperature controller
(thermostat) is installed, the desired room temperature
will be adjusted using this device.
Make adjustments using the appropriate operating
instructions only.
Note: lf thermostatic radiator valves are installed in the
room where the control is installed they must be
fully open.
In case the room temperature setting on the separate
room temperature controller is not sufficient to achieve
the desired room temperature (e.g. during a particularly
cold winter), the boiler water temperature can be adjusted
accordingly.
Troubleshooting

Viessmann Vitodens 100-W B1HA Series Specifications

General

Type	Condensing Boiler
Efficiency	Up to 95% AFUE
Fuel Type	Natural Gas or Propane
Heat Exchanger Material	Stainless Steel
Ignition Type	Electronic ignition
Control	Onboard control with LCD display
Vent Options	Concentric or two-pipe venting