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Viessmann Vitodens 050-W B0KA-M User Manual

Viessmann Vitodens 050-W B0KA-M
116 pages
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Installation and service instructions
for contractors
VIESMANN
Vitodens 050-W
Type B0HA, B0KA, 3.2 to 32 kW
Wall mounted gas condensing boiler
Natural gas and LPG version
Type B0KA-M (for multiple connection), 7.0 to 25 kW
Wall mounted gas condensing boiler
Natural gas version
Gas Council No.
B0KA: 47-819-55, 47-819-57, 47-819-58
B0KA-M: 47-819-56
B0HA: 41-819-63, 41-819-64
VITODENS 050-W
6221465 GB 3/2024
Please keep safe.
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Viessmann Vitodens 050-W B0KA-M Specifications

General IconGeneral
EfficiencyUp to 98% (Hs)/109% (Hi)
Dimensions (HxWxD)700 x 400 x 300 mm
Energy efficiency classA
Max operating pressure3 bar
MountingWall-mounted
Heat Exchanger MaterialStainless steel
TypeGas condensing boiler
Fuel TypeNatural gas, LPG

Summary

Preparing for Installation

Installation Sequence

Mounting the Boiler and Connections

Procedure for mounting the boiler and making initial connections.

Fitting Boiler to Wall Mounting Bracket

Instructions for securing the boiler to the wall mounting bracket.

Heating Water and DHW Connections

Details on making heating water and domestic hot water connections.

Flue Gas Connection

Guidance on connecting the flue gas system for safe operation.

Gas Connection

Procedure for making the gas connection, including leak checks.

Electrical Connections

Steps for making all necessary electrical connections to the appliance.

Commissioning, Inspection, and Maintenance

Steps for Commissioning, Inspection, and Maintenance

Overview of procedures for commissioning, inspection, and maintenance tasks.

Commissioning the System

Detailed steps for initial system setup and configuration.

Filling the Heating System

Procedure for filling the heating system with the correct heat transfer medium.

Checking System Connections for Leaks

Important safety check to identify leaks in water connections.

Checking Static and Supply Pressure

Critical checks for correct gas static and supply pressures.

Function Sequence and Possible Faults

Understanding appliance operation and common fault indicators.

Checking Balanced Flue System Leaks

Procedure for testing the balanced flue system for gas tightness.

Checking Ignition and Ionisation Electrodes

Procedure for checking and adjusting ignition and ionisation electrodes.

Checking Expansion Vessel and System Pressure

How to check and maintain expansion vessel and system pressure.

Checking Gas Equipment for Leaks

Critical safety procedure to check all gas connections for leaks.

Checking Combustion Quality

Procedure for measuring and ensuring optimal combustion quality.

Checking Flue System for Unrestricted Flow

Verifying the flue system has unrestricted flow and no leaks.

Fault Display on the Programming Unit

How to interpret and understand fault indicators on the unit.

Calling Up Fault Messages

Procedure for accessing and viewing fault codes and messages.

No DHW Heating Faults

Diagnosing and resolving faults related to no domestic hot water.

Safety Cut-out and Limiter Faults

Addressing faults related to safety cut-outs and limiters.

Flame Loss and Ionisation Faults

Resolving issues related to flame loss and ionisation signal problems.

Repairs

Detailed procedures for performing repairs on appliance components.

System Configuration Parameters

Diagnosis and Service Checks

Function Description

Connection and Wiring Diagram

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