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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.
Certification Topics
608 Core Exam Study Topics
The test topics that you should expect on the Core Exam are:
OZONE DEPLETION
Destruction of ozone by chlorine.
Presence of Chlorine in CFC and HCFC refrigerant.
Which
refrigerants are CFC, HCFC, HFC.
Which
refrigerants have the highest Ozone Depletion
Potential.
Health and
environmental effects of ozone depletion.
Evidence
of ozone depletion and role of CFCs and HCFCs.
CLEAN AIR ACT AND MONTREAL PROTOCOL
CFC phase
out date.
Venting
prohibition at service and disposal.
Venting
prohibition on HFC refrigerant in November 95
Clean Air
Act maximum penalties.
Montreal Protocol an international agreement to phase out production of ozone depleting substances
608 REGULATIONS
Knowledge and identification of high and low pressure
refrigerants.
Definition
of system dependent and self contained recovery/recycling
equipment.
Identification of refrigeration equipment covered under section
608.
Need for
third party, certification of recycling and recovery equipment
manufactured after November 15, 1993.
Standard
for reclaimed refrigerant.
SUBSTITUTE REFRIGERANTS AND OILS
Absence of
drop-in replacements.
Incompatibility of substitute refrigerants with lubricants used with CFC and HCFC refrigerants.
Incompatibility of CFC and HCFC refrigerants with new lubricants.
Identification of lubricants for a given refrigerant, such as esters with 134a.
Fractionation problem, tendency of different components of blends to leak at different rates.
REFRIGERATION
Refrigerant states and pressures at different points in the
system.
How and
when cooling occurs.
Use of
refrigeration gauges, color codes, different types, proper
use.
RECOVERY TECHNIQUES
Factors
affecting speed of recovery.
Need to
avoid mixing of refrigerants.
Definitions of recover, recycle, reclaim.
EVACUATION
Need to evacuate system to eliminate air and moisture at the end of service.
SAFETY
Risks of
exposure to refrigerant, such as oxygen deprivation, cardiac
effects, frost bite, long term hazards.
Use of
protective gloves, goggles, self contained breathing apparatus in
extreme cases.
Risk of
filling cylinders more than 80% full.
Standard
color code for reusable cylinders.
Testing
and date stamping of reusable cylinders.
Disposable
cylinders.
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.