76
Chapter 4
This PSC Compressor Has the Following
Components:
The electrical system on this type of motor is shown
in Figure 4-14. The actual position of terminals on
the relay may be different than shown in Figure 4-
14. 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
✓
✓
(wired)
✓
Figure 4-14.
PSC compressor motor type with external thermal protector, wired-in PTC relay, and run capacitor.
*
Other auxiliary devices may be attached.
Disconnect any auxiliary devices in Step 2.
Compressor - Unit
Ground
R
S
C
Line 2
Run Capacitor
PTC Relay
Ground
Identified Conductor
(115 Volt Only)
Line 1
Alt. 3/4" Thermal Protector
4TM Thermal Protector
Star
t
Winding
Main
Winding
Control
Fan
Motor*
