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…
Tag: Refrigerator Repair
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…
There are many different makes of pressure controls. Designs may vary but the principle of operation is basically the same: single pressure models respond to…
Prolonged operation at high discharge pressures and temperatures, excessive motor starting, fluctuating voltage conditions, shortage of refrigerant charge and shortage of oil in the compressor…
Scaling Any type of water cooled condenser is prone to scaling of the interior surfaces of the water tubing. The rate at which the scale…