Viessmann Vitodens 100-W B1KA 35 User Manual

Installation and Service
Instructions
VITODENS 100-W
5784 568 - 18 04/2020
for use by heating contractor
Vitodens 100-W B1HA/B1KA
Models 26 to 125
Wall-Mounted, gas-fired condensing boilers
On demand domestic hot water with Combi boiler
Read and save these instructions
for future reference.
IMPORTANT
Please file in Service Binder
Heating input: 21 to 125 MBH
6.2 to 36.6 kW
H

Viessmann Vitodens 100-W B1KA 35 Specifications

General

Model	Vitodens 100-W B1KA 35
Category	Boiler
Output	35 kW
Efficiency	Up to 98% (Hs) / 109% (Hi)
Energy Efficiency Class	A
Fuel Type	Natural Gas / LPG
Heat Exchanger Material	Stainless steel
Modulation Range	1:6
Max. operating pressure	3 bar
Type	Wall-mounted gas condensing boiler

Summary

Safety

Safety, Installation and Warranty Requirements

Outlines critical safety, installation, and warranty obligations for the boiler.

Important Regulatory and Installation Requirements

Control Connections

Accessing Electrical Connections

Start-up, Inspection and Maintenance

Setup Menu and System Preparation

Covers setup menu, filling, gas type, pressure, CO2, altitude, heating input, and DHW configuration.

Gas and Combustion Checks

Details procedures for selecting gas type, measuring pressure, and checking CO2 content.

Component Checks and Maintenance

Includes checks for venting, burner, electrodes, condensate, and heat exchanger cleaning.

Troubleshooting

Troubleshooting Steps and Diagnosis

General approach to diagnosing issues, fault codes, and corrective actions.

Boiler Connection Issues

Additional Information

Electrical Connections for Accessories

Burner Operation Sequence

Explains the sequence of operations during burner start-up and running phases.

Wiring Diagrams

Maintenance Record

Lighting and Operating Instructions