Braemar THM 618 Combustion Fan Assembly Small Ducted Gas Heater PN. 641638

Description
Specifications

Product Description

The Braemar THM 618 Combustion Fan Assembly for Small Ducted Gas Heaters (part number PN. 641638) is a crucial component for maintaining the proper function of the heater by ensuring efficient combustion and safe ventilation. Here's a detailed breakdown of this assembly:

Key Features and Functions of the Combustion Fan Assembly:

Combustion Air Supply: The combustion fan assembly plays a vital role in providing air to the burner. This allows the gas to mix with the right amount of oxygen for efficient and clean combustion. Proper combustion reduces fuel wastage and helps maintain the desired heat output.
Exhaust Ventilation: In addition to supplying air for combustion, the fan also helps expel the exhaust gases from the combustion process out of the system. This ensures safe operation by preventing harmful gases from building up inside the unit.
Compatibility: The combustion fan assembly (PN. 641638) is designed specifically for the Braemar THM 618 small ducted gas heater. This ensures the fan is the correct size and type to maintain proper airflow and function within the system.
Material and Durability: This assembly is constructed from materials that are resistant to heat and wear, designed to withstand the high temperatures associated with combustion. The materials used ensure the fan assembly lasts longer and performs optimally throughout its lifespan.
Motorized Operation: The motor within the combustion fan assembly powers the blades, which are responsible for circulating air through the heater. The motor is designed to be energy-efficient and to run quietly, providing smooth operation without causing noise disturbances.
Energy Efficiency: By ensuring a constant supply of combustion air and the expulsion of exhaust gases, the fan assembly helps maintain the efficiency of the heater. Efficient combustion means better heat output, reduced fuel consumption, and lower operating costs.
Compact and Functional Design: The fan assembly is designed to be compact, which makes it easy to fit within the compact design of small ducted gas heaters like the Braemar THM 618. This helps in maintaining the overall size of the system while still delivering the necessary airflow for proper operation.
Safety and Performance: A properly functioning combustion fan ensures that the heater operates safely. By venting combustion gases and ensuring efficient airflow, the fan reduces the risk of issues such as overheating or gas buildup, which could lead to system failure or unsafe conditions.

How the Combustion Fan Assembly Works:

The combustion fan assembly is designed to work in conjunction with the burner system of the Braemar THM 618 gas heater. Here’s a breakdown of how it operates:

Air Supply for Combustion: The fan draws air into the combustion chamber, providing the necessary oxygen for the gas to burn efficiently.
Exhaust Venting: The fan also helps to vent the exhaust gases created by combustion out of the system. This is crucial for preventing dangerous gases from being released inside the unit.
Controlled Airflow: The fan ensures that the burner has a constant and regulated supply of air, optimizing the fuel-to-air ratio for the most efficient combustion.
Safe Heater Operation: The continuous flow of air and venting of exhaust gases ensure the heater operates safely and without risk of dangerous gas accumulation or overheating.

Maintenance and Troubleshooting:

To ensure the combustion fan assembly remains in optimal working condition, regular maintenance is necessary. Here are a few tips for keeping it in top shape:

Cleaning: Over time, dust and debris can accumulate on the fan blades, motor, and other parts of the fan assembly. Make sure to clean these components regularly. This will help maintain airflow and reduce strain on the motor.
Inspect for Wear: Periodically check for any signs of wear or damage, particularly on the fan blades and motor. Look for cracks, chips, or corrosion on the fan blades and ensure the motor runs smoothly without strange noises.
Check Motor Operation: If the fan motor seems to be running inefficiently or you hear unusual sounds, it might need lubrication or replacement. A malfunctioning motor could lead to poor performance or even failure of the heater.
Look for Obstructions: Ensure there are no obstructions or blockages in the fan assembly or airflow path. Blockages can reduce the efficiency of combustion and the expulsion of exhaust gases, causing safety concerns.
Inspect Venting System: Ensure the exhaust venting system connected to the combustion fan is clear of any debris or blockages. This ensures that gases are vented safely from the system and prevents the buildup of harmful gases.

Replacing the Combustion Fan Assembly:

If the combustion fan assembly (PN. 641638) needs to be replaced, follow these general steps:

Turn Off Power and Gas Supply: Before working on the heater, make sure to disconnect the power and gas supply to the system for safety.
Access the Combustion Fan Assembly: Consult the Braemar THM 618 user manual to locate the combustion fan assembly. You may need to remove panels or covers to access the fan.
Disconnect Electrical and Gas Connections: Disconnect any electrical connections and gas lines connected to the fan assembly. Keep track of how the connections are made for reinstallation.
Remove the Old Fan Assembly: Carefully remove the old fan assembly. Ensure all screws or fasteners are removed before lifting the assembly out of the unit.
Install the New Fan Assembly: Place the new combustion fan assembly (PN. 641638) into the heater, making sure it is properly aligned and secured.
Reconnect Electrical and Gas Lines: Reattach any electrical wiring and gas connections, ensuring they are securely fastened.
Test the Heater: Once the new assembly is installed, restore the power and gas supply. Test the heater to ensure the fan is operating correctly and that the system is running smoothly.

Conclusion:

The Braemar THM 618 Combustion Fan Assembly (PN. 641638) is an essential component for ensuring the safe, efficient operation of the small ducted gas heater. Proper maintenance and timely replacement of the combustion fan are necessary to keep the heater working at peak efficiency and to ensure the safety of your home or business.

Specifications