When a high and low temperature test chamber experiences refrigerant leakage, the following steps can be taken to address the issue:

I. Confirm the Leakage and Shut Down the Machine
Observe the equipment status:
Pay attention to whether the cooling effect of the equipment has significantly decreased, whether the compressor is starting and stopping frequently, or whether the operating noise is abnormal. These could be signs of refrigerant leakage.
Use a leak detector:
Utilize an electronic leak detector or soapy water to inspect the equipment’s piping, joints, valves, and other areas to confirm the presence of a leak.
Shut down immediately:
Once refrigerant leakage is confirmed, immediately stop the operation of the equipment to prevent further damage to the compressor or other components.

II. Contact a Professional Maintenance Team
Refrigerant handling requires specialized knowledge and tools, so it is not recommended for ordinary users to operate on their own.
Immediately contact the equipment manufacturer or professional maintenance personnel for inspection and repair.
III. Locate and Repair the Leak
Comprehensive inspection:
Maintenance personnel should use a leak detector to thoroughly inspect the equipment to determine the exact location of the leak.
Repair measures:
Depending on the location and extent of the damage, take measures such as welding, replacing seals, or replacing damaged parts to repair the leak.
IV. Replenish Refrigerant and Test
Replenish refrigerant:
After the repair is completed, add an appropriate amount of refrigerant to the system and ensure good system sealing.
Run test:
Start the equipment and observe whether the cooling effect has returned to normal.
V. Follow-Up Monitoring and Preventive Measures
Continuous monitoring:
Closely monitor the operation of the equipment for the next few days to ensure there are no new leaks or other abnormal phenomena.
Regular inspection and maintenance:
Regularly inspect the equipment’s piping, joints, and valves to ensure there is no loosening or aging.
Clean the inside of the equipment to prevent dust and debris from clogging or corroding the piping.
Standard operation:
Strictly follow the equipment manual for operation to avoid overloading or improper operation that could cause equipment damage.
Install alarm devices:
Install refrigerant leak alarm devices in the equipment to detect leaks in a timely manner and automatically shut down the machine to prevent the problem from escalating.
Professional training:
Provide professional training for equipment operators to enable them to understand the basic principles of the equipment, operating standards, and simple troubleshooting methods.
Develop emergency response plans:
Develop emergency response plans for refrigerant leaks to ensure that leaks can be handled quickly and correctly when they occur.
VI. Precautions
When dealing with refrigerant leaks, ensure that the working environment is well-ventilated to avoid inhaling harmful gases.
Maintenance personnel should wear gloves, goggles, and other protective equipment to prevent direct contact of refrigerant with the skin or eyes.
Stay away from open flames or high-temperature environments to prevent the flammability and explosiveness of refrigerants.
Handling refrigerant leaks in high and low temperature test chambers requires following a series of steps, including confirming the leak, contacting a professional maintenance team, locating and repairing the leak, replenishing refrigerant and testing, as well as follow-up monitoring and preventive measures. At the same time, attention should be paid to safety and environmental protection issues during the operation process.