1. Introduction
This manual provides essential information for the proper installation, operation, and maintenance of the Lochinvar BNR3422 Copper-Fin2 Main Burner. This component is designed for use in specific Lochinvar Copper-Fin2 water heating systems. Please read this manual thoroughly before attempting any installation or service to ensure safe and efficient operation.
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.
- Always disconnect power to the appliance before servicing.
- Ensure proper ventilation when working with gas appliances.
- Only qualified personnel should perform installation and service.
- Wear appropriate personal protective equipment (PPE) during installation and maintenance.
- Verify all gas connections are secure and leak-free after installation.
3. Setup and Installation
The BNR3422 Copper-Fin2 Main Burner is a replacement part and should only be installed by a qualified technician in compatible Lochinvar Copper-Fin2 units. Refer to the main appliance's service manual for detailed installation procedures.
3.1 Pre-Installation Checks
- Verify the new burner matches the specifications of the original part.
- Inspect the burner for any shipping damage. Do not install if damaged.
- Ensure all necessary tools and safety equipment are available.
3.2 Installation Steps (General Guidelines)
- Shut off the gas supply and electrical power to the water heating unit.
- Allow the unit to cool completely if it has been in operation.
- Carefully remove the existing burner assembly, noting all connections and mounting points.
- Install the new BNR3422 burner, ensuring it is correctly seated and secured according to the appliance's service manual.
- Reconnect all gas lines and electrical components as per the original configuration.
- Perform a gas leak test on all new and disturbed connections using an approved leak detection solution.
- Restore gas supply and electrical power.
- Initiate a test firing of the unit to confirm proper burner operation and flame characteristics.
4. Operating Instructions
The BNR3422 Main Burner operates as an integral part of the Lochinvar Copper-Fin2 water heating system. Its operation is controlled by the main unit's control system. There are no direct user controls for the burner itself.
4.1 Normal Operation
Once installed and the water heating unit is powered on and gas supplied, the burner will ignite automatically when there is a call for heat from the system's thermostat or control board. The burner produces a stable flame to heat the water.
4.2 Observing Burner Performance
Periodically, a qualified technician should observe the burner flame. A healthy flame should be predominantly blue with stable characteristics. Any yellow tipping, lifting, or excessive noise may indicate an issue requiring professional inspection.
5. Maintenance
Regular maintenance of the BNR3422 Main Burner, as part of the overall water heating system, is crucial for longevity and efficiency. All maintenance should be performed by a qualified service technician.
5.1 Annual Inspection
- Inspect the burner for signs of corrosion, dirt, or debris accumulation.
- Check the integrity of the burner ports and ensure they are clear.
- Verify proper ignition and flame sensing operation.
- Clean the burner and surrounding combustion area as needed, using a soft brush or vacuum.
- Inspect all gas connections for leaks.
5.2 Cleaning
If cleaning is required, ensure the unit is off and cooled. Use a non-abrasive brush or compressed air to remove dust and lint from the burner surface and ports. Do not use liquids or harsh chemicals.
6. Troubleshooting
This section provides general troubleshooting guidance. For specific diagnostic procedures, refer to the service manual of the Lochinvar Copper-Fin2 unit in which this burner is installed. Always contact a qualified service technician for complex issues.
| Problem | Possible Cause | Solution |
|---|---|---|
| Burner fails to ignite | No gas supply, faulty igniter, control board issue, clogged burner ports. | Check gas valve, inspect igniter, consult appliance manual, clean burner. Call technician. |
| Weak or yellow flame | Insufficient air, low gas pressure, dirty burner. | Check air intake, verify gas pressure, clean burner. Call technician. |
| Burner cycles on/off frequently | Overheating, faulty thermostat, flame sensor issue. | Check water temperature, inspect thermostat, clean flame sensor. Call technician. |
7. Specifications
Key specifications for the Lochinvar BNR3422 Copper-Fin2 Main Burner:
- Model Number: BNR3422
- Manufacturer: Lochinvar
- Part Number: BNR3422
- Item Weight: 2 pounds
- Package Dimensions: 9 x 7 x 5 inches
- Item Package Quantity: 1
- ASIN: B003ZTJ79I
- Date First Available: December 31, 2009
8. Warranty and Support
For warranty information regarding the Lochinvar BNR3422 Copper-Fin2 Main Burner, please refer to the documentation provided with your complete Lochinvar water heating system or contact Lochinvar customer support directly. As a replacement part, its warranty may be tied to the original appliance's warranty or a specific parts warranty.
8.1 Customer Support
For technical assistance, service, or to locate an authorized service provider, please visit the official Lochinvar website or contact their customer service department. Always provide your product model and serial number when seeking support.
Note: This manual is for informational purposes. Always consult a qualified professional for installation and service of gas appliances.
