Air conditioning testing part B Flashcards
what % of all ozone is in the atmosphere
90%
what are some negative effects of thinner ozone
higher temperatures , increased cancer risks , increased eye cataracts , agricultural crop damage
the international treaty that controls the elimination and phase out of CFC and HCFC refrigerants is
the Montreal protocol
an approved refrigerant container is a storage cylinder that conforms to the specifications of the
Canadian transport commission
what is the ODP ( ozone depleting potential ) of R134A
0%
what international protocol agreement reached in 1997 was designed to reduce greenhouse gas emissions
Kyoto protocol
what is the maximum fill capacity of a refrigerant cylinder if the maximum exposed temperature is 122 F or 50 C
80%
what is the maximum fill capacity of a refrigerant cylinder if the maximum exposed temperature is above 122 F or 50 C
60%
before preforming any work on refrigerant systems you must
identify the type of refrigerant used in the system
when you recover refrigerant you
remove it from the system
when you Reuse refrigerant you
recharge a refrigerant with recovered refrigerant
when you Recycle refrigerant you
remove any contaminates such as moisture, acidity and particulate matter
when you Reclaim refrigerant you
send it to an outside facility that can restore it to a new product specification
why must non-condensable gas must not be mixed into the refrigerant system
it can cause higher than normal operating pressures , lack of lubricating oil distribution and possible component damage
when checking for air in recovered refrigerant you must
store the recovered refrigerant and entrapped air mixture at a constant temperature above 65 F ( 19 C ) for at least 10 hours and use a pressure gauge accurate to 1 psi
