Soldering is a viable method of joining ACR tubing and components while servicing and installing refrigeration systems. However, not all types of solders can be used satisfactorily.
This is the first in a series of advanced basic articles on the refrigeration cycle. All of these articles deal with refrigerant pressures, states, and conditions as applied to a refrigeration system with a refrigerant like R-134a that is not a blend.
A common refrigeration equipment service problem occurs when an evaporator or its drain pan becomes completely engulfed in ice, and the technician needs to de-ice them. Here are ways to de-ice the coil - the right way.
The core of a refrigeration system is the compressor that is designed to pump cool refrigerant gas from the evaporator into the condenser. Refrigeration compressors need to be properly maintained and require periodic inspection and testing.
This fourth of a series of articles on CO2, after a brief review of CO2 characteristics, comparing subcritical and transcritical cycles, presents a functioning transcritical system with a hermetic CO2 compressor and discusses design considerations.
Many times technicians will have the tendency to overcharge refrigeration systems. Many symptoms for other system problems look similar, but they are not exactly like an overcharge of refrigerant.
This troubleshooting procedure is designed to increase the accuracy of your service calls for ice machines, while decreasing the time required to identify any problems.
Mechanical refrigeration is accomplished by continuously circulating, evaporating, and condensing a fixed supply of refrigerant in a closed system. This article describes and illustrates the basics of the refrigeration cycle.
The evacuation process evicts undesirable elements from the refrigerant system. This article examines the terminology, procedures, and equipment used in the evacuation process.
Troubleshooting and servicing refrigeration and air conditioning systems can be a challenging process for entry-level or experienced technicians. Regardless of your experience, it is essential that you have a solid understanding of the fundamentals. You also need to have the right tools.
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