Tecumseh AH5540E Service Handbook page 74

66
SERVICE HANDBOOK
This PSC compressor has the following components:
Thermal Protector Type
Internal External
√
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 Tecumseh Electrical Service Parts Guide
Book for information on proper replacement parts, or call Tecumseh Products Company at
1-800-211-3427.
Alt. 3/4" Thermal Protector
4TM Thermal Protector
Control
Line 1
Line 2
Identi ed Conductor
(115 Volt Only)
Ground
Compressor - Unit
Ground
*Other auxiliary devices may be attached. Disconnect any auxilliary devices in Step 2.
FIGURE 4-14: PSC compressor motor type with external thermal
protector, wired-in PTC relay and run capacitor
Relay Type
Current Potential
Fa n
Motor*
Run Capacitor
Capacitor Type
PTC Run
√ √
WIRED
C
S
R
PTC Relay
Start