How do you date a Tecumseh compressor?

The date of production/manufacture or age of Tecumseh® HVAC equipment can be determined from the “Unit Date” located on the data plate along with the serial number.

What is hermetic compressor?

Hermetic compressor describes a style of compressor you are less likely to see in large industrial or commercial applications, but it is still used on occasion. A hermetic compressor is completely sealed away from the environment, with the casing welded shut. It cannot be accessed by any means.

How does a hermetically sealed compressor work?

A compressor is said to be hermetically sealed compressor, when the compressor and motor operate on the same shaft and both are enclosed in a common casing. These types of compressors eliminate the use of crank shaft seal, which is necessary in open type compressors in order to prevent leakage of refrigerant.

How do I identify my Tecumseh engine?

The model number (marked with red box in photo) on a Tecumseh engine can be found on the engine ID label, typically located under the engine cover. The label will also include other pertinent Tecumseh engine information such as the specification number and date of manufacture.

What is the difference between open and hermetic compressors?

Because the open compressor lacks a seal around it, there is risk of refrigerant leakage. The advantages are that the compressor components are easily accessible for maintenance and the costs of a shell can be avoided. In a semi-hermetic compressor, the motor and the compressor housing are located in a two-piece shell.

What is the advantage in hermetic or sealed type compressor?

Hermetic Compressor This type of compressor eliminates the use of Crankshaft Seal, which is used to prevent leakage. This makes whole the compressor and motor as a single compact unit makes it easy to handle. Basically, hermetically sealed compressors are air tight and ensure no leakage of the working fluid to outside.

How do you find the tonnage of a compressor?

Divide the number listed by 12,000. This will tell you how many tons your HVAC compressor is. For example, if the BTU number listed is 36,000, divide it by 12,000 and you’ll see that you have a 3 ton unit.