what causes fractionation to happen i certain blends of refrigerants
Fractionation occurs in certain blends of refrigerants due to the different boiling points of the individual components in the blend. As the refrigerant evaporates or condenses during the refrigeration cycle, the refrigerant components can separate based on their boiling points, leading to changes in the composition of the refrigerant blend and potentially impacting system performance.
Moisture? Contaminated refrigerant?
Low refrigerant is most likely.Low refrigerant is most likely.
evaporator
The device in a refrigeration system that causes the refrigerant to go from a liquid to a gas is the expansion valve. It controls the flow of refrigerant into the evaporator, where it absorbs heat and evaporates into a gas, cooling the surrounding space.
gas leakage
Low refrigerant charge?
Not enough refrigerant, restriction on the metering device.
Condensor
Most likely a bad thermostat or refrigerant leak.
Low refrigerant charge