Course Title:
Course Number:
Advanced Refrigeration Systems
R-1
  This course explains component and operating differences from high temperature systems. Hands-on exercises cover walk-in boxes, freezer cases, meat display cases, etc.
Course Outline: Download/print this course outline
Week 1:
Refrigeration saturation, subcooling, superheat, defrost, oil.
Week 2:
Refrigeration: Temperature and pressure controls, setting, operation pressures, coil, T.D.
Week 3:
Identify components, suction line accommodators, T.X. valves, oil separators.
Week 4:
Hold back valves or crankcase pressure reg. page 271
Sporlan handouts 90-10. page 277
Week 5:
Pressure limiting T.X. valves when, why.
Hot gas defrost. Electric defrost time clock. Defrost termolators and fan control. Kramer thermostats.
Week 6:
Heat & charger recap controls and settings, 3-way valves.
Sporlan June 2001 Bulletin 30-20
Week 7:
Recap controls and components, piping, etc. Go over midterm handouts.
Week 8:
Give out midterm grades, go over the project and explain what each student did incorrectly.
Week 9:
PDF, start up refrigeration units. Check and test unit pump down and look for controls and identify different components. Show how to set controls pressure type and adjustment of E.P.R. valve.
Week 10:
Go over control adjustments and settings. C.P.R. E.P.R. Back into shop start up and test icemaker.
Week11:
Work on dual temp. refrigerators, adjusting E.P.R. valves and C.P.R. valves. Made bare tube evap coil for reach in box. Install controls cond unit T.X. valve dryer lig eye. Start up and test.
Week 12:
Go over all work for review of final exam.
Week 13:
Final Exam
   
DAY 1 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: For student to understand refrigeration, saturation, subcooling, superheat, and different types of defrost.
OBJECTIVES:
  1. Show students different types of refrigeration system based on hi-temp
  2. Explain saturation temp and show how to determine same.
  3. Explain subcooling and show how to get subcooling temps.
  4. Explain superheat and show how to get superheat reading.
  5. Explain and show different types of defrost systems.
  6. Explain oils and how piping can trap oil with low velocities in coils.
SUBJECT CONTENTS: Advanced refrigeration applications binders
METHODS/TECHNIQUES:
  1. Refrigeration & Air Conditioning Tech — Whitman & Johnson 4th Edition
  2. Sporlan CAT: 2003
  3. Classroom handouts and overheads based on Whitman & Johnson 4th Edition. Carrier training vendors.
RESOURCES: Refrigeration binders for Term 5
Whitman & Johnson 4th Edition
Carrier videos
EVALUATION: Written Quiz Based on Day Course
HOMEWORK: Read unit #1 in Refrigeration Binder and answer questions
   
DAY 2 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: For student to understand temperature and pressure controls, setting controls and pressure at which they cut in & cut out.
Coil T.D.
OBJECTIVES:
  1. Show students different types of refrigeration controls
  2. Explain pressure controls, thermostat controls
  3. How to set controls (Penn) or (Ranco)
  4. Explain coil to box temp T.D.
SUBJECT CONTENTS: Advanced refrigeration applications binder — section 2
METHODS/TECHNIQUES:
  1. Take into shop to show controls as per P.D.F.
  2. Refrigeration & Air Conditioning Tech — Whitman & Johnson 4th Edition
  3. Ranco Controls Booklet
  4. Penn Controls Booklet
RESOURCES: Written Quiz Based on Day Overview and Shop
Questions and Answers
HOMEWORK: Read unit #2 in Refrigeration Binder
   
DAY 3 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Identify components, suction line accumulators, T-X valves, oil separators.
OBJECTIVES: Show student how to identify different refrigeration components and understand their operation as it appiled to the refrigeration system
  1. Explain what it looks like and what it does.
    Suction line accumulator
  2. Explain what it looks like and what it does.
    T.X. valves
  3. Explain what it looks like and what it does.
    Oil separator
SUBJECT CONTENTS: Advanced refrigeration applications binder
Sporlan Booklet
Whitman & Johnson 4th Edition
Refrigeration Research Inc. Booklet
METHODS/TECHNIQUES:
  1. Refrigeration & Air Conditioning Tech — Whitman & Johnson 4th Edition
  2. Sporlan CAT
  3. Refrigeration Research Inc.
  4. Overlays — Whitman & Johnson 4th Edition
RESOURCES: Refrigeration binders for Term 6
Whitman & Johnson 4th Edition
Sporlan CAT
Refrigeration research Inc.
Overlays — Whitman & Johnson 4th Edition
EVALUATION: Written Quiz Based on Days Work
HOMEWORK: Read Chapter 3
Answer questions
   
DAY 4 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Identify and understand
Hold back valves
Crankcase pressure Reg. Valves
OBJECTIVES: Show student and help them understand operation of:
  1. Suction hold back valves
  2. Crankcase pressure Reg. Valves
SUBJECT CONTENTS: Advanced refrigeration applications binder — Section 4
METHODS/TECHNIQUES:
  1. Take into shop and show suction hold back installed on unit and explain its functions
  2. Take into shop and show crankcase pressure reg. installed on unit and explain its functions
RESOURCES: Sporlan Booklets
Whitman & Johnson 4th Edition: Handouts
EVALUATION: Written Quiz Based on Days Overview
Questions and Answers
HOMEWORK: Read Sporlan info sheets
Handouts
   
DAY 5 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Identify and understand
Pressure limiting T.X. valves and why they are used.
Hot gas defrost
Electric defrost
Time clocks
Defrost termination
Fan control
Kramer thermobank systems
OBJECTIVES: Show student and help them understand the operation of:
  1. Pressure limiting T.X. valves and why they are used.
  2. Hot gas defrost
  3. Electric defrost
  4. Time clocks
  5. Defrost termination
  6. Fan control
  7. Kramer thermobank systems
SUBJECT CONTENTS: Advanced refrigeration binder — Section 5
Whitman & Johnson 4th Edition
Handouts
METHODS/TECHNIQUES:
  1. Take into shop and show suction hold back installed on unit and explain its functions
  2. Take into shop and show crankcase pressure reg. installed on unit and explain its functions
RESOURCES: Sporlan Booklets
Whitman & Johnson 4th Edition: Handouts
EVALUATION: Written Quiz Based on Days Overview
Questions and Answers
HOMEWORK: Read handouts
   
DAY 6 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Identify and understand operations of
Heat X
Go over control settings how and why
3-way valves
OBJECTIVES: Show student and help them understand the operation and installation of:
  1. Suction line heat exchange’s
  2. Recap controls setting how & why
  3. 3-way valves
SUBJECT CONTENTS: Advanced refrigeration binder
Shop
Sporlan June 2001 Bulletin 30-20
Handouts
Whitman & Johnson 4th Edition
METHODS/TECHNIQUES:
  1. Advanced Refrigeration Binder — Section 6
  2. Whitman & Johnson 4th Edition
  3. Handouts
  4. Shop
EVALUATION: Written Quiz Based on Days Overview
Questions and Answers
HOMEWORK: Read chapter #6 and handouts
   
DAY 7 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Identify and understand operation of
Refrigeration piping
Line sizes
Pee traps
Inverted traps
go over all days for prep for midterm
OBJECTIVES: Show student and help them understand
  1. Refrigeration pipe sizing and capacity
  2. When to use pee traps for oil
  3. When to use inverted traps
  4. Efficiency based loss
SUBJECT CONTENTS:
  1. Refrigeration pipe sizing charts
  2. Shop
  3. Whitman & Johnson piping and size charts
  4. Handouts
METHODS/TECHNIQUES:
  1. Advanced refrigeration binder section 7
  2. Whitman & Johnson 4th Edition
  3. Handouts
  4. Shop
  5. Overlays
EVALUATION: Written Quiz Based on Days Overview
HOMEWORK: Read handouts and chapter 7 in binder
   
DAY 8 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Midterm test
items up to week #7 for feed back if the information that I was teaching they understood and could project the information on to paper.
SUBJECT CONTENTS: All subject information up to week #7
METHODS/TECHNIQUES: Written test — 50 questions
Also piping layout, size, traps and multi evaps
EVALUATION: Graded test based on 2 points per question and that is 50% of their mark. The other 50% of their mark came from the piping layout project
HOMEWORK: Read Chapter #8 in binder
   
DAY 9 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: PDF’s
  1. Start up refrigeration units in shop
  2. Pump down units in shop
  3. Identify different components
OBJECTIVES: PDF’s
Hands-on in shop
SUBJECT CONTENTS:
  1. Start up refrigeration trainer in shop
  2. Determine what gas is in system
  3. Close king valves and pump system down
  4. make list on different components in system
METHODS/TECHNIQUES:
  1. Training refrigeration units in shop
  2. Whitman & Johnson 4th Edition
  3. Handouts
  4. Tools
RESOURCES: Sporlan Booklets
Whitman & Johnson 4th Edition: Handouts
HOMEWORK: Review what was completed in shop
   
DAY 10 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: PDF’s
  1. To adjust and set pressure controls
  2. To adjust and set E.P.R. valves
  3. To adjust and set C.P. R. valves
OBJECTIVES: PDF’s
Hands-on in shop
For student to adjust & set different types of controls and understand the control and how it works.
SUBJECT CONTENTS:
  1. Start up refrigeration trainer in shop
  2. Adjust controls based on temperature required
  3. Adjust controls based on pressure required
METHODS/TECHNIQUES: In shop (work on refrigeration training) set controls based on handouts.
EVALUATION: Students were elected based on the tools being used and the setting that were set based on handouts.
HOMEWORK: Read Chapter 10 in Binder.
   
DAY 11 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: PDF’s
Work on and understand
  1. Dual temp refrigeration boxes
  2. Adjusting E.P.R. valves
  3. Adjusting C.P.R. valves
  4. Fabrication of bare tube coil
  5. Pull vacuum test and start up
OBJECTIVES: PDF’s
Hands-on in shop
For student to understand dual temp refrigeration boxes and control setting.
Adjustment of E.P.R. valves and C.P.R. valves fabricating of base tube coil for box temp.
METHODS/TECHNIQUES: In shop refrigeration dual temp boxes and fabrication of bare tube coil and making connections to new air-cooled conditioning unit.
EVALUATION: Do student understand dual temp boxes
Do student understand adjusting of C.P.R. & E.P.R.
Design and build evap coil, sizing and box temp.
HOMEWORK: Read Chapter 11 in Binder and bare tube coil handouts.
   
DAY 12 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Does students understand all items covered in term #6 binder and hands-on workshop.
OBJECTIVES: To go over all time covered in work binder for term #6 and P.D.F. that where performed.
SUBJECT CONTENTS:
  1. Start up refrigeration trainer in shop
  2. Adjust controls based on temperature required
  3. Adjust controls based on pressure required
METHODS/TECHNIQUES:
  1. In shop
  2. Whitman & Johnson 4th Edition
  3. All handouts & overheads
EVALUATION: Recap all items covered to date asking question regarding different controls, pressure, settings, and shop work.
HOMEWORK: Study for Final Exam
Handouts, Whitman & Johnson 4th Edition, Refrigeration section temp & pressure charts and E.P.A. runs on recovery, reclaim, recycle.
   
DAY 13 SUBJECT: Commercial Refrigeration and Air Conditioning
GOAL: Did student understand all items, tools, controls, pressures, dual temp, piping, oils, covered in term #6.
OBJECTIVES: To go over items for Final Exam
SUBJECT CONTENTS:
  1. Start up refrigeration trainer in shop
  2. Adjust controls based on temperature required
  3. Adjust controls based on pressure required
METHODS/TECHNIQUES: Writing final exam
EVALUATION: Grading exams based on writing and P.D. F. including shop work (P.D.F.), homework, and class participation.
HOMEWORK: None
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