Those normally used on smaller units are of the electrolytic type. They can be considered as being an electrochemical component employed to improve the phase…
This is another form of solid state relay for non-capacitor and capacitor start motors. It can be used as a replacement for the conventional types.…
Many commercial motor compressors have this type of starting device. In most cases the motor is designed with an internal overload protector; this gives better…
The refrigeration industry has been aware of ozone depletion and global warming in so much as it has, during the late 1980s, paid particular attention…
This type of relay is used with high starting torque motors. It operates in a similar manner to the current relay except that the switch…
This can best be described as a magnetic switch. It comprises a small solenoid coil around a sleeve and an iron core. Inside the sleeve…
In order to diagnose any refrigeration fault quickly and accurately, a set procedure must be followed. The procedure described here takes the form of seven…
The sources of noise are numerous, and in some cases are entirely dependent upon the location and the type of building structure. Common sources of…
Sealed systems such as domestic refrigerators and freezers need to be treated differently, since there may not be provision for fitting gauges unless line tap…
Two types of thermostat are commonly used to control the temperature of a refrigerated space or product by stopping and starting the compressor. The most…