HVAC PROTech® Compressor Library

TECUMSEH SERVICE HANDBOOK
TABLE of CONTENTS


Chapter 1       General Service Safety Precautions
Introduction
Trained Personnel Only
Terminal Venting and Electrocution
Refrigerants and other Chemicals
Compressor Removal
System flushing, Purging, and pressure test for leaks
System Charging
Prevention of Water-Utilizing System Explosions
Start Capacitor Overheating
System Evacuation
Follow the Labels

Chapter 2       Model and Application Information
Compressor Model Number Codes
Condensing Unit Model Number Codes
Serial Label Information
Basic Application Information for Hermetic Compressors

Chapter 3       Compressor Motor and Component Information
Single Phase Compressor Motor Types
PSC Motor Starting
Hermetic Compressor Thermal Protectors
Compressor Motor Starting Relays
Selecting Capacitors
Identification of Terminal Pins
Fuse and Circuit Breaker Sizing

Chapter 4       Servicing
Introduction
Servicing and Troubleshooting Water-Utilizing Systems: Preventing Explosions.
Troubleshooting Chart
Identifying Compressor Electrical Problems
Checking for Adequate Compressor Pumping
Is Your Compressor Eligible for Return Under Warranty?

Chapter 5       Installation and Replacement Information
Compressor Tube Connections
Refrigerant Line Sizes
Refrigerant Line Pressure Drops
Refrigerant Line Velocities
Service Valves
Processing the System
System Cleanup and Compressor Replacement after Compressor Failure
Replacing Compressors in Water Utilizing-Systems: Preventing Explosions

Chapter 6       Operation
Control of Liquid Migration to the Compressor During Shutdown
Crankcase Heaters
Starting a System with Liquid Refrigerant in the Compressor
Control of Refrigerant Floodback to the Compressor During Operation
Accumulator Selection
Internal Pressure Relief Valves

Chapter 7       Appendix
The Basic Refrigeration Cycle
Example of a Tecumseh Hermetic Compressor
Approved Hermetic Compressor Oils