1. Introduction
This manual provides essential information for the safe and efficient installation, operation, and maintenance of the Murlvare GMBT-100-9 Stainless Steel 9-Row Gas Burner. This burner is designed for use with both Natural Gas (NG) and Liquefied Petroleum Gas (LPG) in applications such as steam boilers and steam cabinets. Please read this manual thoroughly before installation and use.
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 ensure adequate ventilation when operating gas appliances.
- Installation and service must be performed by a qualified installer, service agency, or gas supplier.
- Before installation, carefully check the burner's size, interface type, and compatibility with your air source (Natural Gas or Liquefied Gas). This burner is not universal and must match the specifications of the old burner it replaces.
- Do not attempt to use this burner with pure gas if it is not designed for it.
- Regularly check for gas leaks after installation and during maintenance.
- Keep flammable materials away from the burner during operation.
3. Product Overview
The Murlvare GMBT-100-9 is a multi-row stainless steel gas burner assembly. It is available in various configurations, primarily differing by the number of rows and the gas interface type. The burner is constructed from Stainless Steel 430, ensuring durability and resistance to high temperatures.
3.1 Burner Variants
This burner series comes in different row counts and interface types to suit various applications:
- Row Counts: Available in 9-row, 11-row, 13-row, 15-row, 18-row, 20-row, and 25-row configurations.
- Gas Types: Specific models are designed for Natural Gas (NG) or Liquefied Petroleum Gas (LPG).
- Interface Types: Common interface types include flange, 16mm outer thread, 4 points outer thread, and 4 points inner thread.
Figure 1: Angled view of the Murlvare 9-row gas burner.
Figure 2: Top view of the gas burner, showing the gas inlet.
Figure 3: Side view of the gas burner.
Figure 4: Rear view of the gas burner.
4. Specifications
| Attribute | Value |
|---|---|
| Brand Name | Murlvare |
| Model Number | GMBT-100-9 |
| Product Name | Gas Burner Assemblies |
| Material | Stainless Steel 430 |
| Fuel Type | Natural Gas (NG) and Liquefied Gas (LPG) |
| Application | Outdoor Hotel Commercial Household Heating, Steam Boilers, Steam Cabinets |
| Appearance | Multi-row |
| Air-tightness | Good air-tightness |
| Certificates | CE/ISO9001 |
| Package | Carton Packing |
4.1 Dimensions by Row Count
The following table provides general dimensions (Length x Width x Height) for various fire row sizes. Note that specific models and interface types may have slight variations.
Figure 5: Fire row size table (Length of intake rod * Width * Height in mm).
| Row Count | Length (mm) | Width (mm) | Height (mm) |
|---|---|---|---|
| 11 rows | 215 | 110 | 120 |
| 13 rows | 250 | 110 | 120 |
| 15 rows | 290 | 110 | 120 |
| 18 rows | 350 | 110 | 120 |
| 20 rows | 385 | 110 | 120 |
| 25 rows | 480 | 110 | 120 |
4.2 Specific 9-Row Flange Interface Dimensions
Figure 6: Dimensions for a Natural Gas 9-row Flange Interface burner (Length: 175mm, Width: 120mm, Height: 120mm).
5. Installation
Installation of gas appliances should only be performed by a certified professional to ensure safety and compliance with local regulations.
5.1 Pre-Installation Checks
- Compatibility: Verify that the new burner's dimensions (length, width, height), interface type (flange, outer thread, inner thread), and gas type (NG or LPG) precisely match the existing setup or the requirements of the appliance it will be installed in. Refer to the specifications section and product images for details.
- Gas Supply: Ensure the gas supply line is compatible with the burner's interface and the correct gas type is available.
- Ventilation: Confirm that the installation area has adequate ventilation to prevent the accumulation of combustion byproducts.
5.2 Interface Types
Figure 7: Burners featuring a 16mm outer thread interface.
Figure 8: A 25-row burner with a 4 points outer thread interface.
Figure 9: Burners with a flange interface.
Figure 10: Burners with a 4 points inner thread interface.
5.3 Installation Steps (General)
- Turn off the main gas supply to the appliance.
- Carefully remove the old burner, noting its orientation and connections.
- Position the new Murlvare burner, ensuring it fits securely and aligns with the gas inlet.
- Connect the gas supply line to the burner's interface. Use appropriate sealant (e.g., PTFE tape or pipe dope) on threaded connections to prevent leaks.
- Secure the burner in place using any provided fasteners.
- Slowly turn on the main gas supply.
- Perform a leak test on all gas connections using a soap solution. Bubbles indicate a leak. If a leak is detected, turn off the gas immediately and re-tighten connections or reapply sealant. Repeat the leak test until no bubbles appear.
6. Operation
Once installed and leak-tested, the burner is ready for operation.
6.1 Ignition
Follow the ignition procedure specific to your appliance (e.g., pilot light ignition, electronic ignition). Ensure gas flows to the burner before attempting ignition.
6.2 Flame Characteristics
A properly operating gas burner will produce stable, blue flames. Any yellow or orange flames, or excessive lifting of the flame, may indicate improper combustion or a problem with the gas-air mixture. Consult a professional if you observe abnormal flame characteristics.
Video 1: Murlvare gas burner in operation, demonstrating stable blue flames.
7. Maintenance
Regular maintenance ensures the longevity and safe operation of your Murlvare gas burner.
- Annual Inspection: Have the burner and gas connections inspected annually by a qualified technician.
- Cleaning: Periodically inspect the burner rows for any debris, dust, or blockages. Gently clean the burner ports with a soft brush or compressed air if necessary. Ensure all gas ports are clear for optimal flame distribution.
- Corrosion Check: Inspect the stainless steel components for any signs of corrosion or damage. Replace the burner if significant damage is observed.
CAUTION: Always turn off the gas supply and allow the burner to cool completely before performing any maintenance.
8. Troubleshooting
If you encounter issues with your Murlvare gas burner, refer to the following common problems and solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Burner does not ignite | No gas supply, faulty igniter, blocked pilot light/ports | Check gas supply, inspect igniter, clean burner ports. Consult a professional if issues persist. |
| Yellow or orange flames | Improper air-to-gas mixture, dirty burner ports, incorrect gas type | Ensure correct gas type is used. Clean burner ports. Adjust air shutter (if applicable, by a professional). |
| Weak or uneven flames | Low gas pressure, partially blocked burner ports | Check gas pressure. Clean burner ports. |
| Gas odor detected | Gas leak | Immediately turn off gas supply, ventilate the area, and call a qualified technician. Do not operate any electrical switches. |
For complex issues or if you are unsure about any troubleshooting steps, always contact a qualified gas appliance technician.
9. User Tips
- Gas Type Verification: Double-check the gas type (Natural Gas or LPG) specified for your burner model before installation. Using the wrong gas type can be dangerous and damage the burner.
- Regular Visual Checks: Periodically perform a quick visual check of the flames during operation. They should be predominantly blue and stable.
10. Warranty and Support
For warranty information, technical support, or replacement parts, please contact your retailer or the Murlvare Parts Store directly. Ensure you have your model number (GMBT-100-9) and purchase details available when contacting support.
