In General Blended Refrigerants Should Be Charged?

What is the proper charging method for refrigerant blends? ... Somewhere between the cylinder and the compressor the liquid refrigerant should be flashed to vapor to avoid slugging. This can be done, for example, by just cracking open the valve on the gauge set while charging.

What is blended refrigerant?

Blends are a combination of two or more other single component refrigerants. These blends have different chemical and interactive properties. Refrigerants are substances that are mixtures and undergo constant phase transitions from liquid to gas and vice versa. They may also be classified as azeotropic or zeotropic.

What refrigerants can be charged as a liquid?

Blends like R410a or 404a must be added to a system as a liquid. Pure refrigerants like R22 can be added in liquid or vapor states. If adding liquid into the suction like, throttle it in slowly to avoid slugging the compressor or diluting and washing out the compressor oil.