78
Chapter 4
This PSC Compressor Has the Following
Components:
The electrical system on this type of motor is shown
in Figure 4-15. The actual position of terminals on
the relay may be different than shown in Figure 4-
15. Use the letters and/or numbers on the actual
relay to locate the terminals.
If replacement parts are needed, refer to the Tecum-
seh Electrical Service Parts Guide Book for informa-
tion on proper replacement parts, or call Tecumseh
Products Company at 1-800-211-3427.
Thermal
Protector
Type
Relay Type
Capacitor
Type
InternalExternalCurrent
Potential PTC
Run
Start
✓
✓
(module)
✓
(plug-in)
Figure 4-15.
PSC compressor motor type with external thermal protector, PTC starting and protector package, and
plug-in run capacitor.
*
Other auxiliary devices may be attached.
Disconnect any auxiliary devices in Step 2.
Line 2
Ground
Line 1
Compressor - Unit
Ground
PTC
Relay
Plug-In Run Capacitor
PTC Starting and Protector Package
Thermal Protector
Star
t
Winding
Main
Winding
N
C
S
R
Fan
Motor*
L
C
2
C
1
Control
