The starting relay provides power to the start winding of the compressor during start-up for approximately three seconds. At this time, the compressor reaches about…

Valves in figure 45k can be installed on the compressors having high- and low-side access tubes or on the tubing. Remove the valve cap and…

Systems with hermetic compressors seldom requires charging with oil. When a leak occurs, oil escapes with the refrigerant and must be replaced for proper lubrication.…

In refrigeration repairs, a pinch-off tool is used to seal off copper tubing up to three-eighth inch in diameter. Figure 45g shows a typical pinch-off…

Sometimes a wax buildup or dirt obstructs the passage of refrigerant through a capillary tube. Due to its length, the capillary tube may run through…

A hard start kit is a combination relay, start capacitor, and overload protector. Primarily, this kit (see fig. 47a) was designed to start older compressors…

So far we have talked only about the kind of hermetic motors installed in residential units, the split-phase type. These are called hermetic because they…

Each manufacturer has a color code for the wiring in the circuit. The chart above shows the color coding for those wires connected to the…

Occasionally you will encounter some compressor terminals which have no markings (or which may have been obliterated). There is an easy way to determine the…

Another problem leading to compressor failure is regular wear and tear. The compressor runs without being able to create the necessary pressure difference in the…