24Lb R404A Refrigerant Freon Tank Cylinders for Refrigeration Equipment

This canister contains 24 pounds of refrigerant.

R404A does not contain chlorine (CFCs or HCFCs), so it does not damage the ozone layer (ODP=0)

R404A is a mixed refrigerant (non-azeotropic mixture) and must be added to the system in liquid form during charging to prevent component separation.

1. Refrigerant Leakage

• Cause: There may be leaks in the system, causing refrigerant to escape, which prevents the system from properly exchanging heat.
• Solution: Inspect all connections, pipes, and components for cracks or corrosion. Use appropriate leak detection tools (e.g., nitrogen leak detection) to locate the leak, and repair the leakage point. Afterward, recharge the system with the required amount of refrigerant.

2. Insufficient Refrigerant

• Cause: If the refrigerant level is too low, the system may not function properly or may not work at all. This often occurs after installation or maintenance, where refrigerant was not charged correctly.
• Solution: Check the refrigerant pressure and ensure the correct amount is present in the system. If insufficient, top up the refrigerant to the required level.

3. Incompatible Refrigerant

• Cause: The system may require a specific type of refrigerant, and using an incorrect refrigerant can prevent the system from operating properly.
• Solution: Ensure that the correct refrigerant type is being used. For example, if the system is designed for R410A, do not use R22 or other refrigerants. Check the equipment manual to confirm the required refrigerant type.

4. Compressor Failure

• Cause: The compressor is the core component in the refrigerant cycle. If the compressor fails, the refrigerant cannot circulate and pressurize, resulting in no cooling effect.
• Solution: Check if the compressor is functioning properly by inspecting electrical connections and protective devices. If necessary, repair or replace the compressor.

5. Condenser or Evaporator Blockage

• Cause: Dirt, oil, or frost buildup on the condenser or evaporator can reduce heat exchange efficiency, leading to poor or no cooling performance.
• Solution: Clean the condenser and evaporator surfaces by removing dust, oil, or ice buildup. Ensure proper airflow and check if the condenser fan is working correctly.

6. Expansion Valve or Throttling Device Malfunction

• Cause: The expansion valve or throttling device regulates refrigerant flow. If these components malfunction, it can disrupt refrigerant flow, impacting the system’s cooling performance.
• Solution: Check the expansion valve or throttling device for proper operation. If faulty, repair or replace the damaged component.

7. Thermostat Failure

• Cause: If the thermostat is malfunctioning, it may fail to trigger the system to start or operate properly, resulting in no cooling.
• Solution: Check the thermostat settings to ensure they are correct. If the thermostat is damaged, consider replacing it.

8. System Contamination or Dirty Components

• Cause: Contaminants like moisture, air, or other foreign particles can affect the flow and heat exchange properties of the refrigerant.
• Solution: Perform a thorough cleaning of the system, remove contaminants, and ensure that dry refrigerant is used for charging.

9. External Environmental Factors

• Cause: Extreme external temperatures, either too high or too low, can affect the system's ability to operate properly. For example, air conditioning systems may not cool effectively in very hot conditions.
• Solution: Ensure the refrigerant system is used within the environmental temperature range specified by the manufacturer. Avoid using the system in extreme conditions.

10. System Design Issues

• Cause: A poorly designed or improperly installed system may cause refrigerant to fail to circulate properly.
• Solution: Inspect the system design to ensure all components are installed correctly. If design flaws are found, adjustments or component replacements may be necessary.

Summary:

When refrigerant is not working, it’s essential to check for leaks, insufficient refrigerant, or malfunctioning components. Inspect key parts such as the compressor, expansion valve, and evaporator for issues. In cases of more complex problems, it’s recommended to consult with a professional technician for a more detailed diagnosis and repair.

R404A is a non-flammable refrigerant and is safe under normal use conditions and will not burn or explode.

R404A is widely used in supermarket freezers, cold storage, refrigerated transportation equipment and other applications that require a low temperature environment. It is one of the alternatives to traditional refrigerants such as R502 and R22.