Viessmann VITODENS 100 WB1B Ignition Electrode Kit 7828718 User Manual

1. Introduction

This manual provides essential information for the proper installation, operation, and maintenance of the Viessmann VITODENS 100 WB1B Ignition Electrode Kit, part number 7828718. This kit is a replacement component designed for specific Viessmann VITODENS 100 WB1B boiler systems (26KW, 30KW, 35KW). Please read this manual thoroughly before proceeding with any installation or service to ensure safe and efficient operation of your heating system.

2. Safety Information

WARNING: Improper installation, adjustment, alteration, service, or maintenance can cause property damage, injury, or death. Read the installation, operating, and maintenance instructions thoroughly before installing or servicing this equipment.

• Installation and service must be performed by a qualified, licensed professional.
• Always disconnect electrical power to the boiler before performing any service or maintenance.
• Ensure the gas supply to the boiler is shut off before working on gas-related components.
• Wear appropriate personal protective equipment (PPE) such as gloves and eye protection.
• Handle components carefully to avoid damage.
• Refer to the main boiler installation and service manual for specific instructions related to your Viessmann VITODENS 100 WB1B model.

3. Package Contents

The Viessmann VITODENS 100 WB1B Ignition Electrode Kit (Part No. 7828718) typically includes the following components:

• Ignition Electrode Assembly

Image 1: Viessmann Ignition Electrode Kit 7828718. This image shows the complete ignition electrode assembly, which is the primary component of the kit.

4. Installation Instructions

The installation of the ignition electrode kit requires specialized knowledge and should only be performed by a qualified and licensed heating technician. Refer to the specific service manual for your Viessmann VITODENS 100 WB1B boiler for detailed, model-specific instructions.

General Steps (for qualified personnel only):

1. Preparation: Ensure the boiler is completely shut down, and both electrical power and gas supply are disconnected and locked out. Allow the boiler to cool down.
2. Access: Carefully remove the boiler casing and any other components necessary to gain access to the combustion chamber and the existing ignition electrode.
3. Removal of Old Electrode: Disconnect the electrical wiring from the old ignition electrode. Carefully unmount and remove the old electrode assembly. Note its orientation and position for correct installation of the new part.
4. Inspection: Inspect the area for any debris or damage. Clean as necessary.
5. Installation of New Electrode: Install the new Viessmann Ignition Electrode Kit (7828718) in the exact position and orientation as the old one. Secure it firmly according to the boiler manufacturer's specifications.
6. Wiring: Reconnect the electrical wiring to the new electrode. Ensure connections are secure and correct.
7. Reassembly: Reassemble any removed boiler components and the casing.
8. Testing: Restore gas and electrical supply. Perform a functional test of the boiler, checking for proper ignition and operation. Verify there are no gas leaks.

Image 2: Close-up view of the Viessmann Ignition Electrode. This image highlights the ceramic insulator and metal rods of the electrode, crucial for spark generation.

5. Operation

The ignition electrode is a critical component within the boiler's combustion system. Its primary function is to generate a high-voltage spark that ignites the gas-air mixture in the burner. Once ignition is confirmed by the flame sensor, the electrode's role in sparking ceases, and the boiler continues its normal heating cycle.

This kit is a passive component; its operation is entirely controlled by the boiler's internal control unit. Proper functioning of the electrode is essential for reliable boiler startup. If the boiler fails to ignite, the ignition electrode may be a contributing factor, among other potential issues.

6. Maintenance

Regular maintenance of your Viessmann boiler, including inspection of the ignition electrode, is crucial for its longevity and efficient operation. Maintenance should be performed annually by a qualified service technician.

Maintenance Checks:

• Visual Inspection: The technician should visually inspect the electrode for signs of wear, cracking of the ceramic insulator, carbon buildup, or corrosion.
• Cleaning: Any carbon deposits or soot on the electrode tips should be carefully cleaned to ensure a strong, consistent spark.
• Gap Measurement: The gap between the electrode tips should be checked and adjusted if necessary, according to the boiler manufacturer's specifications.
• Wiring: Ensure all electrical connections to the electrode are clean and secure.

If the electrode shows significant wear or damage, it should be replaced with a genuine Viessmann part, such as the 7828718 kit.

7. Troubleshooting

If your Viessmann VITODENS 100 WB1B boiler is experiencing ignition issues, the ignition electrode may be a factor. This section outlines common symptoms related to electrode problems. Always consult a qualified technician for diagnosis and repair.

Common Ignition-Related Issues:

• No Ignition/Boiler Fails to Start: The boiler attempts to ignite but no flame is established. This could indicate a faulty electrode, incorrect electrode gap, or issues with the ignition transformer or gas supply.
• Delayed Ignition: The boiler takes longer than usual to ignite, often resulting in a louder 'bang' upon ignition. This can be caused by a weak spark from a worn or dirty electrode.
• Intermittent Ignition: The boiler ignites sometimes but not always, or cycles on and off unexpectedly. This might suggest an inconsistent spark or a failing electrode.
• Error Codes: The boiler display may show specific error codes related to ignition failure. Refer to your boiler's main manual for error code definitions.

If any of these symptoms occur, contact a qualified service technician. Do not attempt to repair electrical or gas components yourself.

8. Specifications

9. Warranty and Support

For warranty information regarding the Viessmann VITODENS 100 WB1B Ignition Electrode Kit (7828718), please refer to the documentation provided with your original Viessmann boiler or contact Viessmann directly. Warranty terms typically cover manufacturing defects and are subject to proper installation by a qualified professional.

For technical support, service, or to locate an authorized Viessmann service provider, please visit the official Viessmann website or contact their customer service department. Always provide the model number of your boiler and the part number (7828718) when seeking support.

Viessmann Official Website: www.viessmann.com