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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
TYPE II HIGH PRESSURE SYSTEMS EXAM
The test topics that you should expect on the Type II Exam are:
LEAK DETECTION
Signs of leakage in high pressure systems, excessive superheat, presence of traces of oil.
Need to leak test before charging or recharging equipment.
Order of preference for leak test gases.
LEAK REPAIR
Allowable annual leak rate for commercial or industrial process refrigeration.
Allowable leak rate for other appliances containing more than 50 pounds of refrigerant.
RECOVERY TECHNIQUES
Recovering liquid at beginning of recovery process speeds up process.
Other methods for speeding up the recovery process.
Methods for reducing cross contamination and emissions when recovery or recycling machine is used with a new refrigerant.
Evacuation requirements for:
Disposal.
Major or Minor repairs.
Size of system, over or under 200 pounds of refrigerant.
Recovery equipment based on manufacture date, before November 15, 1993, on or after November 15, 1993.
REFRIGERATION
How to identify refrigerant in appliances.
Pressure temperature relationships for common high pressure refrigerants.
Component of high pressure systems and state of refrigerant in them.
SAFETY
Should not energize hermetic compressors in a dehydration vacuum.
ASHRAE standard 34 for safety and identification of refrigerants.
Equipment room requirements under ASHRAE standard 15.