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1. Commercial A/C 🕙 01:10:35
21 Lessons-
Start00. Agenda 🕙 00:00:46
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Start1. Air Conditioning 🕙 00:05:17
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Start2. Commercial Air Conditioning 🕙 00:07:44
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Start3. Non-People Oriented AC 🕙 00:08:07
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Start4. Refrigeration 🕙 00:05:44
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Start5. Commercial AC 🕙 00:01:17
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Start6. Air Handling Units 🕙 00:04:08
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Start7. Makeup Air 🕙 00:01:02
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Start8. Packaged Units and Rooftops 🕙 00:02:21
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Start9. Modular or Custom AHU 🕙 00:03:37
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Start10. Computer Room AC 🕙 00:02:41
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Start11. Computer Room Original Concept and the Progression of Technology 🕙 00:03:27
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Start12. Computer Room by Any Other Name 🕙 00:05:22
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Start13. Google 🕙 00:02:35
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Start14. Chillers 🕙 00:01:44
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Start15. Chiller Types 🕙 00:05:13
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Start16. Where and Why a Chiller 🕙 00:00:57
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Start17. Cooling Towers 🕙 00:02:18
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Start18. Cooling Tower Psychrometrics 🕙 00:03:32
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Start19. END 🕙 00:02:32
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Start📌 Lesson ONE Presentation
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2. Component Identification 🕙 01:04:59
17 Lessons-
Start00. Agenda 🕙 00:01:58
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Start1. Basic Refrigeration Cycle 🕙 00:01:11
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Start2. Packaged Rooftop 🕙 00:01:38
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Start3. Accessories Added In 🕙 00:04:22
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Start4. Computer Room Cooling - Two Independent Circuits 🕙 00:05:32
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Start5. Parallel Rack System 🕙 00:05:32
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Start6. Rack System Examined Oil System 🕙 00:02:03
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Start7. Rack System Examined Discharge Line 🕙 00:03:24
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Start8. Rack System Examined Liquid Line 🕙 00:03:14
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Start9. Rack System Examined Suction Line 🕙 00:01:29
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Start10. Rack System Fully Labeled + Upgraded 🕙 00:04:03
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Start11. Refrigeration Components Identification 🕙 00:07:29
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Start12. Example Components 🕙 00:01:38
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Start12a. Sporlan C-053-S 🕙 00:08:18
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Start12b. Full Gauge MT512E Log 🕙 00:10:47
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Start13. END 🕙 00:02:14
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Start📌 Lesson TWO Presentation
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3. Evaporator Selection, Rh, & Psychrometrics 🕙 01:47:54
26 Lessons-
StartPsychrometrics Chart
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Start00. Agenda 🕙 0:02:09
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Start1. Heat Transfer 🕙 0:11:55
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Start2. Heat Transfer in Refrigeration 🕙 0:02:05
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Start3. Direct Expansion Evaporator 🕙 0:07:58
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Start4. Flooded Evaporator 🕙 0:04:41
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Start5. Overlooked Basics 🕙 0:06:08
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Start6. DX Evaporator Applications 🕙 0:01:54
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Start7. Equipment Selection Carrier 24 Steps 🕙 0:03:09
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Start8. Equipment Selection Simpler Approach 🕙 0:04:53
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Start9. Temperature & Humidity 🕙 0:03:30
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Start10. SHR & The Space 🕙 0:04:27
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Start11. SHR & The Equipment 🕙 0:03:41
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Start12. SHR & Total Heat 🕙 0:01:53
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Start13. Equipment SHR Factors 🕙 0:04:01
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Start14. Evaporator TD 🕙 0:03:40
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Start15. Evaporator Airflow 🕙 0:06:49
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Start16. Evaporator Coil Design 🕙 0:02:53
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Start17. Defrost 🕙 0:01:58
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Start18. Manual Defrost 🕙 0:03:44
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Start19. Automatic Defrost 🕙 0:05:33
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Start20. Air System: Five Processes 🕙 0:09:59
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Start21. System Capacity and Cooling Effect 🕙 0:06:53
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Start22. Air System & Evaporator Capacity Problem 🕙 0:02:22
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Start23. END 🕙 0:01:29
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Start📌 Lesson THREE Presentation
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4. Start-Up Procedures and Sheets, & Fine Tuning 🕙 1:47:11
38 Lessons-
Start00. Agenda 🕙 0:01:02
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Start1. What is start-up? 🕙 0:00:27
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Start2. Start-up 🕙 0:03:39
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Start3. Start-up Requirements 🕙 0:03:33
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Start4. Start-Up Sheets 🕙 0:06:11
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Start5. American Standard Rooftop Start-Up Procedure 🕙 0:03:31
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Start6. Daikin Centrifugal Chiller Pre-Start-Up 🕙 0:04:26
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Start7. Liebert CRAC Start-Up Sheet 🕙 0:15:52
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Start8. Generic Start-Up Sheet 🕙 0:03:29
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Start9. Start-Up Sheet Procedure 🕙 0:01:43
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Start10. Measurements: Refrigeration 🕙 0:02:33
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Start11. Measurements: Electrical 🕙 0:03:33
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Start12. Measurements: Airflow In Ducts 🕙 0:02:03
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Start13. Static Pressure 🕙 0:01:07
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Start14. Velocity Pressure 🕙 0:01:34
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Start15. Total Pressure 🕙 0:00:38
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Start16. External Static Pressure 🕙 0:02:38
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Start17. Pressure Drop 🕙 0:01:09
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Start18. Pitot Tube 🕙 0:00:54
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Start19. Accurate Readings (Traverse) 🕙 0:03:42
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Start20. Measurements: Airflow At Outlets & Inlets 🕙 0:01:47
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Start21. Flow Hoods 🕙 0:02:23
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Start22. Anemometers 🕙 0:03:43
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Start23. Garbage Bag Method 🕙 0:01:25
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Start24. Measurement Hydronic Flow 🕙 0:03:24
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Start25. Balancing & Fine Tuning 🕙 0:02:41
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Start26. Refrigerant Charge 🕙 0:02:21
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Start27. Operational Controls 🕙 0:01:39
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Start28. Temperature Controls 🕙 0:03:56
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Start29. Pressure Controls 🕙 0:02:07
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Start30. Head Pressure 🕙 0:03:29
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Start31. Crankcase Pressure 🕙 0:01:27
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Start32. Evaporator Pressure 🕙 0:01:32
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Start33. Superheat 🕙 0:03:50
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Start34. Motor Current 🕙 0:03:33
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Start35. Secondary Voltage 🕙 0:01:51
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Start36. END 🕙 0:01:51
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Start📌 Lesson FOUR Presentation
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5. Available App: Emerson Mobile 🕙 0:43:30
20 Lessons-
Start00. Agenda 🕙 0:03:58
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Start1. Features & Benefits Copeland Electrical Handbook 🕙 0:05:00
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Start2. App Available on iOS and Android 🕙 0:01:02
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Start3. Desktop Version Login or Register 🕙 0:03:04
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Start4. Home 🕙 0:01:55
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Start5. AE Bulletins & Support 🕙 0:01:51
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Start6. Compressor Search 🕙 0:02:04
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Start7. Compressor Selection Application, Refrigerant, Power 🕙 0:02:12
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Start8. Compressor Selected Capacity 🕙 0:01:38
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Start9. Mechanical 🕙 0:01:23
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Start10. Electrical 🕙 0:04:22
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Start11. Performance 🕙 0:02:42
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Start12. Where to Buy & Cross Reference 🕙 0:01:54
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Start13. Diagnostics 🕙 0:01:51
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Start14. Nomenclature 🕙 0:02:59
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Start15. Bill of Materials, Wiring Diagrams, & Service Parts 🕙 0:03:11
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Start16. Live Step-by-Step KAN2-0050-IAA 🕙 0:16:45
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Start17. Live Step-by-Step ZR72KC-TFE 🕙 0:15:08
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Start18. END 🕙 0:02:15
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Start📌 Lesson FIVE Presentation
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6. Troubleshooting (Trends Expanded) 🕙 1:11:13
21 Lessons-
Start00. Agenda 🕙 0:03:04
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Start1. Trends 🕙 0:03:41
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Start2. Expanded Trends 🕙 0:09:45
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Start3. Logic & Sequence of Operation 🕙 0:03:45
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Start4. Operation Flowchart 🕙 0:05:17
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Start5. Troubleshooting Flowchart 🕙 0:02:32
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Start6. No Flowcharts? 🕙 0:01:42
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Start7. Sequence of Operation 🕙 0:02:12
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Start8. Operational Checklist 🕙 0:01:37
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Start9. Troubleshooting Guide IFTT 🕙 0:08:54
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Start10. Wiring Diagram 🕙 0:01:20
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Start11. Limited Resources? Back to the basics! Asking the right questions! 🕙 0:03:49
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Start12. Questions to Ask 🕙 0:03:41
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Start13. Problem Clearly Defined 🕙 0:03:30
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Start14. Easy to Reproduce or Intermittent 🕙 0:04:18
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Start15. Change Only One Thing 🕙 0:02:07
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Start16. Big Picture Troubleshooting & The Power of Observation 🕙 0:02:38
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Start17. A Flowchart For You 🕙 0:03:31
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Start18. END 🕙 0:03:41
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StartSporlan Fault Finder
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Start📌 Lesson SIX Presentation
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7. Troubleshooting (Mechanical) 🕙 1:36:04
25 Lessons-
Start00. Agenda 🕙 0:03:10
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Start1. Valves: Solenoid Valve 🕙 0:01:23
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Start2. Solenoid Valve: Coil Burnout 🕙 0:03:40
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Start3. Solenoid Valve: Failure to Open 🕙 0:02:15
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Start4. Solenoid Valve: Failure to Close 🕙 0:02:26
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Start5. Thermostatic Expansion Valve 🕙 0:02:27
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Start6. TXV FAQ #1: TXV Selection 🕙 0:02:18
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Start7. TXV FAQ #2: Bulb Placement 🕙 0:03:06
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Start8. TXV FAQ #3: Internally or Externally Equalized 🕙 0:03:13
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Start9. TXV FAQ #4: Superheat Adjustment 🕙 0:03:38
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Start10. TXV Function 🕙 0:03:44
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Start11. TXV: Flooding 🕙 0:04:04
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Start12. TXV: Starving 🕙 0:03:47
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Start13. TXV: Hunting 🕙 0:01:58
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Start14. TXV: Testing 🕙 0:03:39
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Start15. Electronic Expansion Valve 🕙 0:02:14
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Start16. Compressors 🕙 0:06:53
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Start17. Liquid Slugging 🕙 0:11:41
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Start18. Liquid Dilution or Floodback 🕙 0:08:22
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Start19. Liquid Washout or Flooded Start 🕙 0:03:48
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Start20. Overheating or High Discharge Temperature 🕙 0:04:36
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Start21. Lack of Lubrication 🕙 0:05:44
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Start22. Moisture 🕙 0:04:09
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Start23. END 🕙 0:03:41
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Start📌 Lesson SEVEN Presentation
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8. Troubleshooting (Wiring Diagrams & Electrical) 🕙 2:01:17
25 Lessons-
Start00. Agenda 🕙 0:01:59
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Start1. Electrical Troubleshooting 🕙 0:05:31
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Start2. Electrical Symbols 🕙 0:07:54
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Start3. Common Components: Resistors and Disconnects 🕙 0:08:27
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Start4. Fuses and Breakers 🕙 0:03:46
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Start5. Overloads (Thermal & Magnetic) 🕙 0:04:35
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Start6. Transformers 🕙 0:03:51
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Start7. Loads 🕙 0:03:40
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Start8. Thermocouples 🕙 0:01:33
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Start9. Capacitors 🕙 0:01:37
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Start10. Electrical Safety & Electrical Measurements 🕙 0:04:03
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Start11. Current 🕙 0:01:44
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Start12. In-line vs Clamp-on Meter: Which is better? 🕙 0:03:35
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Start13. Voltage 🕙 0:03:16
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Start14. Resistance 🕙 0:03:08
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Start15. More Resistance: Megger 🕙 0:03:22
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Start16. Ohm's Law: 3 Problems 🕙 0:06:42
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Start17. Diagrams: Pictorial, Ladder, Connection 🕙 0:08:30
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Start18. Schematic Logic: 3 Problems 🕙 0:11:47
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Start19. Diagram Example: Lab 🕙 0:09:51
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Start20. Diagram Example: Carrier Furnace 🕙 0:04:07
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Start21. Diagram Example: KeepRite Condensing Unit 🕙 0:07:05
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Start22. Diagram Example Liebert: Computer Room Air Conditioner 🕙 0:08:40
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Start23. END 🕙 0:02:21
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Start📌 Lesson EIGHT Presentation
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9. Motors & VFDs 🕙 1:47:44
34 Lessons-
Start00. Agenda 🕙 0:01:41
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Start1. Single-Phase, Three-Wire 🕙 0:05:33
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Start2. ELI the ICE man: Resistive, Inductive, & Capacitive Circuits 🕙 0:07:03
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Start3. Three-Phase Power 🕙 0:06:31
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Start4. Motor Basics 🕙 0:06:02
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Start5. Stator Poles, Motor Speed, & Motor Slip 🕙 0:03:38
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Start6. Motor Limitations & Capacitors 🕙 0:05:22
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Start7. Capacitor Operation 🕙 0:02:20
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Start8. Capacitor Ratings, Types, & Requirements 🕙 0:06:36
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Start9. Capacitor Too Small? Too Big? 🕙 0:01:51
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Start10. Combining Capacitors: Series & Parallel 🕙 0:05:26
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Start11. Capacitor Testing 🕙 0:04:36
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Start12. Capacitor Causes of Failure 🕙 0:02:42
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Start13. Capacitor Safety 🕙 0:01:38
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Start14. Single Phase Motor Types & Terminals 🕙 0:02:29
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Start15. Single Phase Motor: Shaded Pole 🕙 0:02:08
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Start16. Single Phase Motor: Permanent Split Capacitor (PSC) 🕙 0:00:56
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Start17. Single Phase Motor: Capacitor Start (CS) 🕙 0:01:42
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Start18. Single Phase Motor: Cap Start Cap Run (CSR) 🕙 0:00:57
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Start19. Single Phase Motor: Electronically Commutated Motor (ECM) 🕙 0:04:47
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Start20. Single Phase Motor Testing 🕙 0:01:46
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Start21. Motor Characteristics - Application 🕙 0:01:34
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Start22. Mechanical Characteristic: Enclosure 🕙 0:04:44
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Start23. Mechanical Characteristic: Frame 🕙 0:02:49
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Start24. Mechanical Characteristic: Bearings 🕙 0:01:23
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Start25. Mechanical Characteristic: Thermal Protection 🕙 0:01:10
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Start26. Mechanical Characteristic: Direction 🕙 0:01:49
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Start27. Mechanical Characteristic: Shaft 🕙 0:00:56
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Start28. Mechanical Characteristic: Mount 🕙 0:00:37
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Start29. Electrical Characteristics🕙 0:02:17
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Start30. Three Phase Motors 🕙 0:03:06
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Start31. VFDs 🕙 0:08:03
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Start32. END 🕙 0:03:16
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Start📌 Lesson NINE Presentation
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10. Blowers & Drive Assemblies 🕙 1:08:34
19 Lessons-
Start00. Agenda 🕙 0:00:55
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Start1. Axial Blowers 🕙 0:04:04
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Start2. Centrifugal Blowers 🕙 0:06:06
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Start3. Fan Laws & Fan Curves 🕙 0:03:15
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Start4. Fan Performance Curves 🕙 0:06:06
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Start5. Example: Delhi 410 Finding HP & RPM 🕙 0:05:45
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Start6. Single Speed Motor: Different CFMs? 🕙 0:04:05
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Start7. Two Speed Motor 🕙 0:08:02
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Start8. Direct Drive vs Indirect Drive 🕙 0:03:21
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Start9. Belts & Belt Types 🕙 0:04:30
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Start10. Belt Construction 🕙 0:04:36
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Start11. Belt Numbers and Sizes 🕙 0:02:22
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Start12. Pulley Types 🕙 0:04:53
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Start13. Pulley Installation and Alignment 🕙 0:01:46
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Start14. Pulley Misalignment 🕙 0:01:52
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Start15. Pulley Condition 🕙 0:01:10
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Start16. Belt Tensioning and Sizing 🕙 0:04:19
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Start17. END 🕙 0:01:19
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StartUntitled lesson
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Refrigeration THREE
A compilation of extremely valuable skills often overlooked in both the classroom and the field.
Course Summary
Refrigeration THREE is the third of a 4-part series.
Refrigeration THREE is where we look at extremely valuable skills that are often overlooked in the field and the classroom.
Who is this for?
The skills being introduced in this course can be used by technicians in any HVACR field.
This course is meant for intermediate to advanced students.
If have completed Refrigeration TWO, this is where you should be headed next!
If you're part way through an apprenticeship, these are skills that will help with your day to day tasks.
If you've been in the industry for a long time, but you're looking for additional training - there WILL be multiple new or useful skills brought to your attention.
What is covered?
Advanced Everyday Skills
Intro to different commercial industries
Component ID
Evaporators and Sensible Heat Ratio
Start-up procedures
Digital Resources
Troubleshooting (Mechanical & Electrical)
Autopsy of a compressor
Motors, VFDs, blower wheels, belts and pulleys
Have a look at the lessons below for details!
This is a college level course which spans about 28 hours in the classroom.
10 Separate lessons, lecture style, and running approximately 14 hours total.
Quizzes and tests throughout to ensure your progress. (5 - 15 hours)
+ Q & A
+ Community
+ Live Chat
"Just wanted to say thank you for your class on Fan Curves.
It helped me a lot in the field and reminded me of you, just wanted to say thank you for being an awesome professor who taught me something that helped me in real life."
Jamal S.
Student
Course Curriculum
Course Pricing
Reviews
5
Top Rated
Harshil Ghadge
Everything was nicely done.
All the contents which you have brought are fantastic and easy to understand, examples were to the point and explanation as always was awesome. The only thing missing was your presence and your ability to spot ourselves in difficulties. That is the story of every online class though, there is nothing much you could do about it. One thing I like would like to highlight is that you should post exercises here which one could not move ahead of the course without completing.
Chuan Bao
The Best All in One HVAC & Refrigeration Training
Dan is an exceptional and knowledgeable HVAC professor. He is always there when you need help. I enjoy Refrigeration courses the most as I constantly find myself learning more materials and understand the materials in more depth. Furthermore, the use of visual aids in the lessons help me identify the components through their physical structures and as well as how they operate allowing students such as myself to understand the materials extensively and have frame of reference for future troubleshooting. I am more than happy and grateful to be taught by Dan, one of the best HVAC professor. His dedication for teaching certainly shows in his lessons! As I finished up Refrigeration courses, I am excitingly looking forward and will definitely joining Dan HRAI courses.
Mohmedsaad Mamuji
Review for refrigeration
Very well organized and helpful, I am able to watch all lectures at any time. Lectures were very well performed and nicely recorded and taught.
George Sourial
refrigeration 3 review
A lot of us have been struggling due to the covid - 19 and the inconvenience it has put on us, but with that being said your teaching methods have helped us a lot. I prefer your recordings over regular teacher presentations because, it allows me to pause and take notes, and also rewind if there is something I do not understand. Also, I appreciate the equipment u used to teach such as and the high quality mic, a lot of other teachers use very low quality microphones making it hard to understand what they are saying at times. I am looking forward to seeing you next semester, thank you.
Gabriel Zambon
Review
This course was really organized and explained concepts thoroughly. I really enjoyed it
Mian Khan
Well laid out Course
This course is well constructed with videos on all the topics expected to be covered, explained very clearly and plainly, hope to find the same ease of use in Refrigeration 4.
Rate this course