System
Diagnostics and Troubleshooting Procedures
John Tomczyk
Provides the reader with the
necessary information to successfully diagnose air conditioning and
refrigeration system problems.
Systematic troubleshooting and
diagnostics of; airflow problems, refrigerant cycle malfunctions,
suction and liquid line restrictions, oil logged evaporator,
undercharge, overcharge, compressor inefficiencies, dirty condenser,
air in the system, restricted metering device, and low and high
condenser entering air temperatures are detailed.
Systematic diagnosis of the above listed
problems using service checklists to assist the service technician
to quickly and efficiently troubleshoot a system is explained.
Basic and advanced leak detection covering the
following six classes of leaks are detailed;
- standing leaks
- pressure dependant leaks
- temperature dependant leaks
- vibration dependant leaks
- combination dependant leaks
- cumulative micro leaks
Testing procedures for evaporator leaks,
condenser leaks, suction and liquid line leaks are all thoroughly
explained. Advanced leak detection and modern leak detectors are
also included and explained in detail.
System evacuation, deep vacuums, micron gauges
and scales, vacuum pumps, vacuum manifolds, system pressure drops,
vacuum breaker valves, and gas ballasts are all explained as well as
illustrated.
System cleanout procedure after a compressor
burnout using suction and liquid line filters and associated graphs
are included. Combination acid and moisture test kits are also a
part of this module.
Contents:
Diagnosing Air Conditioning
Systems
- Air Flow
- Refrigerant Cycle
Systematic
Troubleshooting
- Service Checklist
- Troubleshooting
- Undercharge of
Refrigerant
- Overcharge of
Refrigerant
- Overcharged
Capillary Tube Systems
- Dirty Condenser or
Restricted Air Flow over Condenser
- Restricted Liquid
Line after the Receiver
- Restricted Liquid
Line before the Receiver
- Air in the System
- Restricted Metering
Device
- Restricted Air Flow
over Evaporator
- Oil-Logged
Evaporator
- Inefficient
Compressor from Bad Valves
Leak Detection,
Evacuation, and Clean-up Procedures
- Basic Leak
Detection
- Advanced Leak
Detection
- Modern Leak
Detectors
- Material Safety
Data Sheet
- Leak Pinpointing
and Area Monitoring
- System Evacuation
Using the Deep Vacuum Method
- System Burnout
- Notes
72 pages
8-1/2 x 11
Related:
more HVAC/R Related
Plumbing Related
Welding Related
HVAC
Exam Prep
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