Viessmann Oil Hose Set (800521) for Oil Burners

Introduction

This instruction manual provides essential information for the safe and effective use of the Viessmann Oil Hose Set (800521). This 2-piece OEM oil hose kit is designed for use with oil burners in heating systems. Please read this manual thoroughly before installation and operation to ensure proper function and safety.

Product Overview and Components

The Viessmann Oil Hose Set (800521) consists of two high-quality oil hoses designed for connecting components within an oil burner system. These hoses are critical for the reliable supply of fuel.

• Quantity: 2 oil hoses
• Connector: 3/8" connector nut
• Length: 1000 mm (1 meter)
• Internal Diameter: 6 mm
• Construction: High-quality, durable materials suitable for oil transport.

Image 1: The Viessmann Oil Hose Set, showing two coiled hoses with their metal fittings. These hoses are designed for fuel transport in oil burner systems.

Image 2: A detailed view of the robust metal fittings on the ends of the Viessmann oil hoses, highlighting their secure connection points.

Image 3: A closer look at the connection points of the Viessmann oil hoses, illustrating the quality of the crimped fittings and the hose material.

Specifications

Safety Information

Warning: Improper installation or handling of oil hoses can lead to fuel leaks, fire hazards, and serious injury. Always follow these safety guidelines:

• Ensure the heating system is completely shut down and cooled before beginning any work.
• Disconnect power to the oil burner before installation.
• Wear appropriate personal protective equipment (PPE), including gloves and eye protection.
• Handle fuel with extreme care. Avoid spills and ensure adequate ventilation.
• Do not smoke or use open flames near fuel lines.
• Ensure all connections are tight and leak-free after installation.
• If you are unsure about any step, consult a qualified technician.

Installation (Setup)

This section provides general guidance for replacing oil hoses. Specific installation steps may vary depending on your oil burner model. Refer to your oil burner's specific service manual for detailed instructions.

1. Preparation: Ensure the oil burner is off, cooled, and power is disconnected. Place absorbent material under the work area to catch any fuel drips.
2. Disconnect Old Hoses: Carefully loosen the connector nuts on the old oil hoses using an appropriate wrench. Be prepared for residual fuel to drain.
3. Remove Old Hoses: Once disconnected, remove the old hoses from the system.
4. Inspect Connections: Check the connection points on the oil burner and fuel tank/pump for cleanliness and damage. Clean as necessary.
5. Install New Hoses: Connect the new Viessmann oil hoses. Ensure the 3/8" connector nuts are properly aligned and hand-tighten them first.
6. Tighten Connections: Using a wrench, carefully tighten the connector nuts. Do not overtighten, as this can damage the fittings. Ensure a snug, leak-free seal.
7. System Restart: After installation, reconnect power to the oil burner. Follow the manufacturer's instructions for priming the fuel system and restarting the burner.
8. Leak Check: Carefully inspect all new connections for any signs of fuel leakage immediately after restarting and during initial operation.

Operation

The Viessmann Oil Hoses are passive components designed to transport fuel within your oil burner system. Once correctly installed, they operate continuously as part of the fuel delivery system. Their proper function is integral to the overall operation of the oil burner.

Maintenance

Regular inspection of your oil hoses is crucial for preventing fuel leaks and ensuring the safe operation of your oil burner.

• Visual Inspection: Periodically check the hoses for any signs of wear, cracks, abrasions, bulges, or hardening. Also, look for any discoloration or residue around the fittings, which could indicate a slow leak.
• Leak Detection: If a fuel odor is detected, immediately shut down the oil burner and investigate for leaks. Do not restart the burner until the leak is identified and repaired.
• Replacement Schedule: Oil hoses have a limited lifespan. Consult your oil burner's service manual for recommended replacement intervals. Even without visible damage, hoses should be replaced preventatively after a certain number of years (typically 5-10 years, depending on manufacturer recommendations and operating conditions).
• Cleaning: Keep the area around the hoses clean and free of debris or corrosive substances that could degrade the hose material.

Troubleshooting

If you experience issues with your oil burner that you suspect are related to the fuel lines, consider the following:

• Fuel Odor: A strong fuel odor indicates a leak. Immediately shut down the system and inspect all connections and the hose body for damage. Tighten connections or replace the hose as necessary.
• Burner Not Firing: If the burner is not receiving fuel, check for kinks or blockages in the hoses. Ensure the fuel supply valve is open. If the hoses appear intact, the issue may lie elsewhere in the fuel system or burner.
• Visible Damage: Any visible damage to the hose (cracks, bulges, fraying) requires immediate replacement of the affected hose.

For complex issues or if you are unable to resolve a problem, contact a qualified heating system technician.

Warranty and Support

For information regarding the warranty of your Viessmann Oil Hose Set (800521), please refer to the purchase documentation or contact your supplier. For technical support or further assistance, please reach out to Viessmann customer service or a certified Viessmann service partner.

Manufacturer: Viessmann

Part Number: 2700206