R-410A Purpose of Training
The HVACR industry has been using HCFC’s since the 1940’s. Due to environmental and competitive pressure, HCFCs including R-22 are being phased-out. In response, many of
the manufacturers began selling equipment that uses HFC-410A. R-410A presently marketed under the brand names Honeywell AZ-20, Carrier Puron, or DuPont Suva.
Air conditioning equipment manufactured for R-410A will require contractors and technicians to shift to different tools, equipment and SAFETY STANDARDS when installing or
changing out older split A/C systems and repairing systems in the field.
R-410 has a much higher vapor pressure than R-22. The discharge pressure of R-410A is approximately 50% to 70% higher than R-22. These higher pressures create some safety
concerns.
To address the issues of safe handling, training and certification with the use of R-410A the industry worked together to unify behind a Universal R-410A Safety Training &
Certification program. The AC&R Safety Coalition members include RSES, ESCO Institute, Ferris State University, Indoor Air Quality Association, Industrial Technology Excellence,
Green Mechanical Council, HVAC Excellence, COSA & the United Association. Together working with numerous manufacturers, wholesalers & industry associations they have
developed a Universal R-410A curriculum.
Course Content
R-410A and the R-22 Phase-out
- HCFC Phase out Schedule
- Regulation and Change
- The Future
- Safety and R-410A
Refrigeration & Air Conditioning Systems Fundamentals
- Vapor Compression System
- Condensing Pressure
- Evaporating Pressure
- Refrigerant States & Conditions
- Saturation
- Vapor Pressure
- Superheat
- Subcooling
R-410A Considerations
- Compressor
- Compression Ratios
- Condenser
- Receiver
- Filter/Driers
- Liquid Line
- Metering Device
- Evaporator
- Suction Line
Refrigerant Chemistry & Applications
- Chlorofluorocarbons (CFC’s)
- Hydrochlorofluorcarbons (HCFC’s)
- Hydrofluorocarbons (HFC’s)
- Blends
- Blend Fractionation
- Blend Temperature Glide
- Superheat & Subcooling
- Calculation for Near-Azeotropic Blends
- Subcooling & Superheat with
- Temperature Glide
- Evaporator Superheat Calculation
- Condenser Subcooling Calculations
- Blend Lubricants
HCFC-22 Replacement Candidates
- R-410A
- Typical Operating Pressures
- Temperature Glide & Fractionation
- Pressure / Temperature Chart
- R-407C
- Temperature Glide & Fractionation
Basic Service Tools
- Gauge Manifold
- R-410A Considerations
- Micron Gauge
- Vacuum Pumps
- R-410A Considerations
Basic Service Tools ( Continued )
- Leak Detectors
- R-410A Considerations
Refrigerant Recovery Systems
- Passive Recovery (System Dependant)
- Active Recovery (Self Contained)
- R-410A Considerations
Refrigerant Charging
R-410A System Charging
- Charging for Proper Subcooling
- Charging for Proper Superheat
- Precautions
R-407C System Charging
R-407C Refrigerant Leaks & Leak detectors
Refrigeration Oils & Applications
- Oil Groups
- Synthetic Oils
- Alkybenzene
- Glycols
- Esters
- Waste Oils
- Lubricants, R-410A, R-407C & R-134A
- Advantages of POE vs. Mineral oils
- Concerns with POE Lubricants
Safety
- Personal Safety Protection
- Electrical Safety
- Safe Refrigerant Handling
- Storage Cylinders
- Shipping
- ASHRAE Standard 34
- Equipment Room / Job Site Safety
- Monitors / Alarms
Ventilation
- Purge Venting
- Breathing Apparatus
Safety Overview
- R-410A Considerations
- Material Safety Data Sheet
- Toxicity
- Flammability
- Combustibility
- Ingestion
- Skin / Eye Contact
- Inhalation
- Refrigerant Decomposition
Environmental Considerations
Training Manual
This book will provide field service personnel with the necessary training and practical knowledge to safely perform service on systems containing R-410A as well as R-407C and
other near azeotropic blends. This manual also includes information on: the R-22 phaseout, appropriate refrigerant and oil applications, service techniques, as well as safe handling
of R-410A.
The R-410A book is now available on kindle.
Interactive CD-ROM
A CD-Rom is available to review the book chapter by chapter in a interactive manner. The CD breaks R-410A training into categories each with specific sub topics. Each category
contains practice questions to help trainees to successfully prepare for their R-410A Certification.
Instructor Resources and Exam Materials
Instructor's Guide
Includes section by section overview, objectives, and lesson plans. Includes section by section mapping to the Power Point presentation, and approximate time frames.
Powerpoint Presentation
This highly effective Power Point presentation includes “Speakers Notes” and is designed to keep the program on track.
Certification
An end of course assessment - certification is available to validate if attendees comprehend the course materials..
Additional Information
To learn more about the modular training package, contact ESCO Institute toll free at 1(800)726-9696.
Special Proctor Pricing
Proctors may log in here for special pricing.