1. Ievads
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the DANFOSS BFP 21R3 Burner Oil Pump, model number 071N0109. Please read this manual thoroughly before attempting any installation or operation to ensure proper function and to prevent damage or injury. Keep this manual for future reference.

1. attēls: Vispārīgi view of the DANFOSS BFP 21R3 Burner Oil Pump.
2. Drošības informācija
Always observe general safety precautions when working with fuel systems and electrical components. Failure to follow these instructions may result in property damage, serious injury, or death.
- Ensure the power supply to the burner system is disconnected before installation, maintenance, or troubleshooting.
- Valkājiet atbilstošus individuālos aizsardzības līdzekļus (IAL), tostarp cimdus un acu aizsargus.
- Handle fuel with care. Fuel is flammable and can cause skin irritation.
- Uzstādīšanu un apkopi drīkst veikt tikai kvalificēts personāls.
- Check for leaks after installation and before operating the system.
- Do not modify the pump or its components. Use only genuine DANFOSS replacement parts.
3. Produkts beidziesview
The DANFOSS BFP 21R3 is a compact burner oil pump designed for use in oil burner systems. It is engineered for reliable fuel delivery and pressure regulation. The pump features a robust metal construction and is suitable for industrial applications.

2. attēls: sāni view of the pump, highlighting the 'P' (pressure) and 'V' (return) ports, and model identification.
Galvenās funkcijas ietver:
- Modelis: BFP 21R3
- Daļas numurs: 071N0109
- Materiāls: Metāls
- Krāsa: Melns
- Pielietojums: Burner Oil Systems

3. attēls: augšdaļa view of the pump, showing the electrical connector for power supply.
4. Iestatīšana un instalēšana
Proper installation is crucial for the pump's performance and longevity. Refer to your burner manufacturer's instructions for specific mounting requirements.
4.1 Montāža
- Mount the pump securely to the burner motor or a stable surface using appropriate fasteners.
- Ensure the pump shaft aligns correctly with the motor coupling.

4. attēls: apakšā view of the pump, illustrating the drive shaft and mounting screw locations.
4.2 Fuel Line Connections
Connect the fuel lines as follows:
- Inlet (Suction) Line: Connect the fuel supply line to the designated inlet port. Ensure a tight, leak-free connection.
- Nozzle Line (Pressure): Connect the line leading to the burner nozzle to the pressure port (marked 'P' on some models).
- Atgriešanās līnija: If applicable, connect the return line to the return port (marked 'V' on some models) to send excess fuel back to the tank. For single-pipe systems, the return port must be plugged.
4.3 Elektriskie savienojumi
Connect the pump's electrical terminals to the burner control system according to the burner manufacturer's wiring diagram. Ensure correct voltage and polarity. All electrical work must comply with local codes and regulations.
4.4. Sūkņa uzpildīšana
After installation, the pump must be primed to remove air from the fuel lines. This is typically done by running the burner for a short period until a steady flame is established. Some pumps may have a bleed screw for manual air removal.
5. Lietošanas instrukcijas
Once installed and primed, the DANFOSS BFP 21R3 pump operates automatically in conjunction with the burner control system. The pump maintains the required fuel pressure for efficient combustion.
5.1 Spiediena regulēšana
The pump's pressure can be adjusted via a pressure regulating screw, typically located on the pump body. Use a pressure gauge to set the desired operating pressure as specified by the burner manufacturer. Turn the screw clockwise to increase pressure and counter-clockwise to decrease pressure.
6. Apkope
Regular maintenance ensures optimal performance and extends the life of the pump.
6.1 Regulāras pārbaudes
- Inspect fuel lines for leaks, cracks, or damage.
- Check electrical connections for tightness and corrosion.
- Listen for unusual noises during operation, which may indicate a problem.
6.2. Filtra nomaiņa
The pump typically contains an internal filter that should be inspected and replaced periodically, usually annually or as recommended by the burner manufacturer. A clogged filter can restrict fuel flow and reduce pump performance.

Figure 5: Close-up of the pump's drive shaft, which connects to the motor.
7. Traucējummeklēšana
This section outlines common issues and potential solutions. Always disconnect power before performing any troubleshooting steps.
| Problēma | Iespējamais cēlonis | Risinājums |
|---|---|---|
| Nav eļļas plūsmas | Clogged filter, air in lines, faulty motor, incorrect rotation | Clean/replace filter, bleed air, check motor, verify pump rotation |
| Zems eļļas spiediens | Clogged filter, worn pump components, incorrect pressure setting | Clean/replace filter, inspect pump, adjust pressure regulator |
| Pārmērīgs troksnis | Air in lines, loose mounting, worn bearings | Bleed air, tighten mounting bolts, inspect for wear |
| Eļļas noplūdes | Loose fittings, damaged seals | Tighten connections, replace seals |
8. Specifikācijas
| Specifikācija | Vērtība |
|---|---|
| Ražotājs | DANFOSS |
| Modeļa numurs | BFP 21R3 |
| Daļas numurs | 071N0109 |
| Materiāls | Metāls |
| Krāsa | Melns |
| Stils | Rūpnieciskais |
9. Garantija un atbalsts
For warranty information or technical support, please contact your authorized DANFOSS dealer or the seller from whom the product was purchased. Keep your proof of purchase for warranty claims.





