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How to flushing refrigerator condenser & evaporator with CTC chemical

Flushing a refrigerator's condenser and evaporator coils with carbon tetrachloride (CTC) is a delicate process that should be done with caution due to the chemical's toxicity and environmental hazards. Here’s a general guide:

Safety Precautions
Personal Protection: Wear protective gloves, safety goggles, and a mask.
Ventilation: Ensure the area is well-ventilated to avoid inhaling fumes.
Environmental Protection: Avoid spillage and proper disposal methods should be followed for hazardous materials.
Materials Needed
CTC chemical
Protective gear (gloves, goggles, mask)
Pump or flush kit designed for refrigerants
Catch basin or container
Proper disposal container for CTC
Steps to Flush the Condenser and Evaporator Coils
Preparation
Turn Off the Refrigerator: Unplug the refrigerator to ensure no electrical components are active.
Access the Coils: Locate and access the condenser and evaporator coils. The condenser coils are usually at the back or bottom of the fridge, and the evaporator coils are inside the unit, often behind a panel.
Flushing Process
Drain the System:

Recover the refrigerant using a recovery machine to ensure no refrigerant is released into the environment.
Make sure the system is depressurized before beginning the flushing process.
Set Up the Flushing Kit:

Attach the flushing kit or pump to the coils. This typically involves connecting hoses to the inlet and outlet of the coils.
Introduce CTC:

Pour the CTC chemical into the pump or flushing kit reservoir.
Begin pumping the CTC through the coils. This should be done slowly to ensure the chemical can dissolve and carry away any debris or oil.
Cycle the CTC:

Allow the CTC to circulate through the coils. This may take a few minutes to thoroughly clean the internal surfaces.
Collect the flushed CTC in a catch basin or container.
Repeat if Necessary:

Depending on the level of contamination, you may need to repeat the flushing process until the CTC runs clear.
Post-Flushing
Drain the CTC:

Ensure all CTC is flushed out of the system. Residual CTC can damage the system and is unsafe.
Evacuate the System:

Use a vacuum pump to evacuate the system and remove any remaining traces of CTC and moisture.
Refill with Refrigerant:

Recharge the system with the appropriate amount of refrigerant.
Test for leaks and proper operation of the system.
Proper Disposal:

Dispose of the used CTC and contaminated materials according to local hazardous waste disposal regulations.
Important Considerations
Professional Assistance: If you are not experienced with handling refrigerants and chemicals, it is strongly recommended to seek professional help.
Environmental Impact: CTC is hazardous to the environment. Always follow regulations for its use and disposal.
System Compatibility: Ensure the flushing process and chemicals used are compatible with your refrigerator's components.
By following these steps carefully and adhering to safety protocols, you can effectively flush the condenser and evaporator coils of your refrigerator.