Viessmann 800521
Viessmann Oil Hose Set (800521) for Oil Burners
Model: 800521 | Brand: Viessmann
Ro-ràdh
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.
Bathar seachadview agus Co-phàirtean
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.
- Meud: 2 oil hoses
- Ceangalaiche: 3/8" connector nut
- Fad: 1000 mm (1 meter)
- Trast-thomhas a-staigh: 6 mm
- Togail: 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.

Ìomhaigh 2: Mion-fhiosrachadh 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.
Sònrachaidhean
| Feart | Luach |
|---|---|
| Brand | Viessmann |
| Modail Àireamh | 800521 |
| Pàirt Àireamh | 2700206 |
| Meud | 2 phìos |
| Fad Hose | 1000 mm (1 meter) |
| Trast-thomhas a-staigh | 6 mm |
| Meud ceangail | 3/8" connector nut |
| ASIN | B07G38YVTJ |
Fiosrachadh Sàbhailteachd
Rabhadh: 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.
- Cuir ort uidheam dìon pearsanta (PPE) iomchaidh, a’ gabhail a-steach miotagan agus dìon-sùla.
- 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.
- Mura h-eil thu cinnteach mu cheum sam bith, bruidhinn ri teicneòlaiche teisteanasach.
Stàladh (Suidheachadh)
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.
- Ag ullachadh: Ensure the oil burner is off, cooled, and power is disconnected. Place absorbent material under the work area to catch any fuel drips.
- Disconnect Old Hoses: Carefully loosen the connector nuts on the old oil hoses using an appropriate wrench. Be prepared for residual fuel to drain.
- Remove Old Hoses: Once disconnected, remove the old hoses from the system.
- Dèan sgrùdadh air ceanglaichean: Check the connection points on the oil burner and fuel tank/pump for cleanliness and damage. Clean as necessary.
- Install New Hoses: Connect the new Viessmann oil hoses. Ensure the 3/8" connector nuts are properly aligned and hand-tighten them first.
- Dèan teannachadh air ceanglaichean: Using a wrench, carefully tighten the connector nuts. Do not overtighten, as this can damage the fittings. Ensure a snug, leak-free seal.
- Ath-thòiseachadh an t-siostaim: After installation, reconnect power to the oil burner. Follow the manufacturer's instructions for priming the fuel system and restarting the burner.
- Sgrùdadh lasachaidh: Carefully inspect all new connections for any signs of fuel leakage immediately after restarting and during initial operation.
Obrachaidh
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.
Cumail suas
Regular inspection of your oil hoses is crucial for preventing fuel leaks and ensuring the safe operation of your oil burner.
- Sgrùdadh lèirsinneach: 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.
- Dearbhadh aodion: 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.
- Clàr ùr: 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).
- Glanadh: Keep the area around the hoses clean and free of debris or corrosive substances that could degrade the hose material.
Fuasgladh thrioblaidean
If you experience issues with your oil burner that you suspect are related to the fuel lines, consider the following:
- Fàileadh connaidh: 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.
- Losgadair gun a bhith a’ losgadh: 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.
- Milleadh faicsinneach: 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.
Barantas agus Taic
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.
Dèanadair: Viessmann
Àireamh Pàirt: 2700206
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