Product Details
Troubleshooting Tips for Servicing Refrig. Systems
By Joe Marchese with Leo A. Meyer
118 Pages, 6 x 9, softcover
This book gives you the troubleshooting tips you need to know to efficiently service, maintain, and repair refrigeration systems. Covers compressors, system components, metering devices, instruments, piping and tubing, refrigerants and oil, ice machines, and servicing.
CONTENTS
COMPRESSORS
Checking Compressors
Compressor Capacity
Compressor Overheating
Preventing Repeat Compressor Failures
Replacing an Unknown Compressor
Compressor Terminal Identification
Overheated Compressors
Compressor Rated Load Amperage (RLA)
Voltage Drop
Compressor Contactors
Troubleshooting Relays with an
Ohmmeter
Wiring Potential Relays
Run Capacitance Off-Cycle Heat
Crankcase Heaters
Taking an Oil Sample from a
Hermetic Compressor
Removing Oil from a
Semi-Hermetic Compressor
SYSTEM COMPONENTS
Adjusting Crankcase Pressure
Regulators
Oil Separators
Constant Cut-in Temperature
Controls
Installing Pressure Controls
Filter Bypass
METERING DEVICES
Balanced Port Expansion Valves
MOP (Maximum Operating Pressure)
Expansion Valves
The Sensing Bulb of a TXV
Troubleshooting Thermostatic Expansion
Valves
Checking the Power Element of a TXV
Automatic Expansion Valves
Charging Capillary Tube Systems
Sizing Capillary Tubs
INSTUMENTS
Using a Compressor Analyzer
Using a Data Logger as a Service
Tool
Using a Short Refrigeration Gauge
Adjusting Refrigeration Gauges
Testing the Accuracy of a Thermometer
Gas Ballast of a Vacuum Pump
PIPING AND TUBING
ACR Tubing Insulation
Basic Piping Tips
Condensate Trap for AC System
Cutting Out a Copper Elbow
Sizing Suction Lines
Suction Line Traps
REFRIGERANTS AND OIL
Looking for Refrigerant Leaks
Liquid Push-Pull Recovery Method
Recovery Cylinder Capacity
Evacuation Tips
Standing Vacuum Test
Refrigerant Charging
System Charging for Flooded
Condensers
Adding Oil to a Refrigeration System
SERVICING
First Steps of a Service Call
Frosted Suction Lines
Liquid Line Restrictions vs.
Undercharge
Troubleshooting Iced-up Evaporators
Unit Cooler Recommended Coil
Placement
Checking for Non-Condensables
Determining Discharge Pressure
Measuring Ice Production of a
Commercial Ice Machine
Servicing Ice Machines—
Loss of Water