High and low temperature test chamber compressor safety manual

Today, a professional engineer from Beijing Yashilin High and Low Temperature Test Chamber will share some important points to keep in mind when using the test box compressor. Proper maintenance and operation are essential to ensure the longevity and safe performance of the equipment.

First and foremost, never shut off the exhaust valve when starting the compressor. This can lead to serious damage and create significant safety risks. Always make sure the exhaust valve remains open during startup to prevent internal pressure buildup.

Second, when charging the refrigerant, always do so through the high-pressure valve while the system is in a vacuum state. It's crucial not to overfill the system via the suction valve while the compressor is running, as this can cause liquid slugging, which may result in mechanical failure or even compressor damage.

Third, to reduce moisture inside the system, it's recommended to use a dry filter for moisture absorption. Avoid using methanol for this purpose, as it can severely damage the motor coil and potentially cause the motor to burn out. Additionally, install an air suction filter to prevent dirt and debris from entering the compressor and causing internal contamination.

Fourth, to avoid liquid hammer, close the suction valve if the compressor will be idle for an extended period. Before restarting, allow the crankshaft heater to run for at least three hours to ensure proper lubrication and reduce the risk of mechanical stress during startup.

Fifth, if the compressor is used outside its recommended operating range, its lifespan will be significantly reduced. In such cases, adjust the superheat level accordingly. If necessary, implement cooling methods to operate within the specified limits. For example, adding a cylinder head to the fan cylinder can help manage temperature more effectively.

Sixth, never use oxygen for pressure testing. Also, do not test nitrogen without a safety valve installed. Improper use of these gases can lead to explosions, resulting in severe injuries or even fatalities. Always follow the correct procedures and safety guidelines when performing any kind of pressure test.

By following these guidelines, users can ensure the safe and efficient operation of the high and low temperature test chamber compressor, reducing the risk of malfunctions and extending the life of the equipment.

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