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YK Troubleshooting & Operations
Introduction
Welcome to the course (0:48)
What is a centrifugal compressor? (3:32)
Refrigerant Cycle
PRV (1:28)
Impeller & VGD (1:46)
Condenser (1:03)
Subcooler (2:19)
Liquid Level (1:54)
Drop Leg & Metering Valve (2:25)
Evaporator (1:29)
Evaporator Sightglass (2:19)
Refrigeration Cycle Recap (0:25)
Operating Principles
Setpoint Control (5:46)
Pulldown Process (2:27)
Stall & Surge (6:19)
Oil Cycle
Under Construction
Maintenance
Under Construction
Troubleshooting/Service Procedures
Under Construction
SCR Test (10:43)
IGBT Test (21:24)
Surging (32:54)
Q & A
Adjusting Liquid Level Setpoint (1:06)
Drop Leg Temperature (0:45)
Evaporator Sightglass Foaming (0:28)
Hot Gas Bypass (0:57)
How To Become Chiller Tech (4:23)
Erratic Liquid Levels (1:12)
Oil Temperature (1:20)
Overhaul (2:26)
Conclusion
Key Takeaways (1:58)
Congratulations (0:51)
Hot Gas Bypass
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