An extremely important parameter to consider in refrigeration and air conditioning systems is the correct flux of the refrigerant within the plant. The optimization of performance and the life of compressor depend on the capability of the system to reduce the mixing of lubricant oil and liquid refrigerant to the minimum. This is not always possible, if the oil temperature is too low, the two components start to mix up and migrate within the system. If the percentage of refrigerant diluted in oil is high, the lubricant properties of the oil are dramatically changed, and its viscosity is reduced.
A method frequently used to contrast the solubilization of the refrigerant in oil, is that of heating the oil contained in the compressor by means of an electric resistance heating element provided with adequate power. The oil is kept at a constant temperature of about 30/35°C, it is therefore kept at a temperature which is higher than that of the refrigerating circuit, so that the refrigerant is forced to remain within the evaporator and/or condenser. It is advisable to start the heating element before activating the compressor, in order to allow the oil to reach the adequate temperature (usually 8/10 hours earlier). Despite being relatively cheap and easy to use, this component plays a significant role in the correct functioning and life of hermetic and/or semi-hermetic compressors.
A method frequently used to contrast the solubilization of the refrigerant in oil, is that of heating the oil contained in the compressor by means of an electric resistance heating element provided with adequate power. The oil is kept at a constant temperature of about 30/35°C, it is therefore kept at a temperature which is higher than that of the refrigerating circuit, so that the refrigerant is forced to remain within the evaporator and/or condenser. It is advisable to start the heating element before activating the compressor, in order to allow the oil to reach the adequate temperature (usually 8/10 hours earlier). Despite being relatively cheap and easy to use, this component plays a significant role in the correct functioning and life of hermetic and/or semi-hermetic compressors.