How to replace the ventilation equipment in the fume hood?

Replacing the ventilation equipment inside a fume hood, such as fans or air valves, is a relatively complex process that requires following certain steps and precautions. The following is a general guideline:

First, preparatory work in advance

Turn off the power.

Before performing any operation, be sure to turn off the power of the fume hood and disconnect all electrical connections related to the ventilation equipment to ensure safety.

Prepare tools and materials:

Prepare the corresponding tools and materials according to the ventilation equipment that needs to be replaced, such as screwdrivers, electric drills, fresh air machines, expansion screws, screw caps, etc.

Clean up the working area:

Clear the debris around the fume hood to ensure the working area is clean and unobstructed, so as to facilitate the smooth replacement operation.

Second, remove the old ventilation equipment

Disassemble the electrical connection

If the old ventilation equipment is connected to the electrical system, the electrical connection needs to be disassembled first. Pay attention to marking the connection positions of the wires properly for subsequent reinstallation.

Disassemble the pipe connection

If the old ventilation equipment is connected to the duct, appropriate tools (such as wrenches, electric drills, etc.) need to be used to disassemble the duct connection. Take care to protect the pipes and connectors from damage.

Disassemble the fixing screws and connecting parts:

Use tools such as screwdrivers to remove the fixing screws and connecting parts of the ventilation equipment. Please disassemble them step by step in sequence to avoid damaging the fume hood or ventilation equipment.

Third, install new ventilation equipment

Determine the installation location:

According to the design requirements and actual needs of the fume hood, determine the installation location of the new ventilation equipment. Calibrate with tools such as a level to ensure the installation position is accurate.

Install new ventilation equipment

Place the new ventilation equipment in the designated position and fix it with screws and connectors. Pay attention to operating in accordance with the requirements of the manual to ensure that the installation is firm and reliable.

Connect the pipeline and the electrical system:

If the new ventilation equipment needs to be connected to the ducts and electrical system, the ducts and wires should be connected at the marked positions. Use materials such as sealant or sealing gaskets to ensure reliable sealing at the connection points.

Fourth, commissioning and acceptance

Check the installation quality:

After the installation is completed, carefully inspect the installation quality of the new ventilation equipment to ensure that all connections are firm and reliable, without any looseness or air leakage.

Turn on the power for testing:

Reconnect the power supply and turn on the new ventilation equipment for testing. Observe its operation to ensure that indicators such as wind speed and noise meet the requirements.

Carry out the acceptance work

During the testing process, pay close attention to the overall operation of the fume hood to ensure that the new ventilation equipment can work normally and be in harmony with the fume hood system. Finally, carry out the acceptance work to ensure that the installation quality and usage effect meet the expected requirements.

Fifth, Precautions

Safe operation

Throughout the entire replacement process, it is essential to pay close attention to safe operation to prevent accidents such as electric shock and falls.

Protective equipment:

During the disassembly and installation process, it is necessary to pay attention to protecting the new ventilation equipment and fume hoods from damage. Avoid using excessive force or improper tools to prevent damage to the equipment.

Follow the instructions:

Before carrying out any operation, be sure to read and understand the manual and installation guide of the new ventilation equipment first to ensure that the operation is carried out in the correct way.

Professional Guidance:

If you are not familiar with replacing ventilation equipment or encounter complex situations, it is recommended that you seek professional guidance or assistance to ensure a smooth replacement process.