Why risk fines up to $27,500.00 per violation per day for not having the
proper certifications?
Recent EPA Enforcement Actions
Have questions about the EPA'S Rules and Regulation?
Use the Link Below.
Link to EPA Rules & Regulations
Let us Train and Certify your staff.
These tidbits and the many others that we have provided our customers over the past eighteen years are a small token of our appreciation to the most important people in the world. Our Customers!
Our office is open from 8am to 4pm Mountain Standard Time Monday thru Thursday
Contact Us
Phone: 623-934-0909
E-mail to: Contact Us
Motorcoach 608 Certification is EPA Approved and valid for all classes of HVAC and refrigeration work.
RESIDENTIAL
COMMERCIAL
INDUSTRIAL PROCESS
CHILLERS
SMALL APPLIANCES
R-22 & R-500 BUSES
609 Certification is valid for Motor Vehicle Air Conditioners including R-12 & R-134a Buses.
Recent EPA Enforcement Actions
Have questions about the EPA'S Rules and Regulation?
Use the Link Below.
Link to EPA Rules & Regulations
Let us Train and Certify your staff.
These tidbits and the many others that we have provided our customers over the past eighteen years are a small token of our appreciation to the most important people in the world. Our Customers!
Our office is open from 8am to 4pm Mountain Standard Time Monday thru Thursday
Contact Us
Phone: 623-934-0909
E-mail to: Contact Us
Motorcoach 608 Certification is EPA Approved and valid for all classes of HVAC and refrigeration work.
RESIDENTIAL
COMMERCIAL
INDUSTRIAL PROCESS
CHILLERS
SMALL APPLIANCES
R-22 & R-500 BUSES
609 Certification is valid for Motor Vehicle Air Conditioners including R-12 & R-134a Buses.
Bus Maintenance News
Maintenance Topics
Back to Bus
Maintenance Topics
Preparing for
Certification Tests
608 Type I Exam
Study Topics
608 Type II Exam
Study Topics
608 Type III
Exam Study Topics
608 Core Exam Study Topics
Ozone Depletion
- Destruction of ozone by chlorine
- Presence of chlorine in CFC and HCFC refrigerants
- Identification of CFC, HCFC, and HFC refrigerants (not chemical formulas, but idea that R-12 is a CFC, R-22 is an HCFC, R-134 is an HFC, etc.)
- Idea that CFCs have higher ozone-depletion potential (ODP) than HCFCs, which in turn have higher ODP than HFCs
- Health and environmental effects of ozone depletion
- Evidence of ozone depletion and role of CFCs and HCFCs
Clean Air Act and Montreal Protocol
- CFC phaseout date
- Venting prohibition at servicing
- Venting prohibition at disposal
- Venting prohibition on substitute refrigerants in November, 1995
- Maximum penalty under CAA
- Montreal Protocol (international agreement to phase out production of ozone-depleting substances)
Section 608 Regulations
- Definition/identification of high and low-pressure refrigerants
- Definition of system-dependent vs. self-contained recovery/recycling equipment
- Identification of equipment covered by the rule (all air-conditioning and refrigeration equipment containing CFCs or HCFCs except motor vehicle air conditioners)
- Need for third-party certification of recycling and recovery equipment manufactured after November 15, 1993
- Standard for reclaimed refrigerant (ARI 700)
Substitute Refrigerants and oils
- Absence of "drop-in" replacements
- Incompatibility of substitute refrigerants with many lubricants used with CFC and HCFC refrigerants and incompatibility of CFC and HCFC refrigerants with many new lubricants (includes identification of lubricants for given refrigerants, such as esters with 134; alkylbenzenes for HCFCs)
- Fractionation problem--tendency of different components of blends to leak at different rates
Refrigeration
- Refrigerant states (vapor vs. liquid) and pressures at different points of refrigeration cycle; how/when cooling occurs
- Refrigeration gauges (color codes, ranges of different types, proper use)
Three R's
- Definitions
-
- Recover
- Recycle
- Reclaim
Recovery Techniques
- Need to avoid mixing refrigerants
- Factors affecting speed of recovery (ambient temperature, size of recycling or recovery equipment, hose length and diameter, etc.)
Dehydration Evacuation
- Need to evacuate system to eliminate air and moisture at the end of service
Safety
- Risks of exposure to refrigerant (e.g., oxygen deprivation, cardiac effects, frost bite, long-term hazards)
- Personal protective equipment (gloves, goggles, self-contained breathing apparatus--SCBA--in extreme cases, etc)
- Reusable (or "recovery") cylinders vs. disposable cylinders (ensure former DOT approved, know former's yellow and gray color code, never refill latter)
- Risks of filling cylinders more than 80 percent full
- Use of nitrogen rather than oxygen or compressed air for leak detection
- Use of pressure regulator and relief valve with nitrogen
Shipping
- Labels required for refrigerant cylinders (refrigerant identification, DOT classification tag)