34
VI.
Identification of Terminal Pins
There are several different types of terminals used on
the various models of Tecumseh compressors.
Tecumseh terminal pins are now always thought of
in the order: Common, Start, Run. To identify the
terminal pins, we read the order exactly as we would
read a book: That is, we start at the top left hand
corner and read across the first “line” from left to
right. We then drop down to the second line starting
at the left and read across. Some compressor models
have terminal pin identification embossed on the
protective terminal cover. While the protective ter-
minal cover may identify the terminal pins, it is pri-
marily designed to reduce the risk of serious injury
or death from electrocution or terminal venting
with ignition. Never energize the system unless the
protective terminal cover is securely fastened.
Push-On Terminal Pins
P, R, AP & AR Models (1953 to phaseout)
T & AT Models
AZ & AE (Refrigeration Models)
Spade Type Terminal Pins
AU & AR26 Air Conditioning Models
AE Air Conditioning Models
AW, AB, AJ, AH & RK Models
Spade Type Terminal Pins
AV Models
Internal Thermostat
Terminal Pins
Many CL Models
Spade Type Terminal Pins
S & C Models (1955 to phaseout)
AK Models
Figure 3-24.
Current arrangements.
Common
Run
Start
Common
Run
Start
Common
Start
Run
Common
Run
Start
