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EPA 608 study material including (Core, type 1, 2 and 3) already graded A+
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EPA 608 study material including (Core, type 1, 2 and 3) already graded A+
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EPA 608 study material including (Core,type 1, 2 and 3)
a vacum pump should be connected - ANSas far away from the pump as possible
a high capacity vacuum pump and short, large diameter hoses will - ANSdramatically reduce
emissions, pressure drop, and evacuation/dehydration time
ozone contains three - ANSoxygen atoms
one chlorine atom can destroy - ANS100,000 ozone molecules
CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in
water - ANSCFC's cannot be washed out of the lower atmosphere
ODP - ANSozone depletion potential
azeotrope - ANSwhere the mixture behaves like a single chemical (new refrigerant)
HFC's will not damage the ozone in the stratosphere - ANS...
in 1992 the united states ordered the stoppage of all CFC production and importation after -
ANSDecember 31, 1995
according to the clean air act, no person installing, maintaining, repairing, or disposing of any
appliance may knowingly vent or otherwise release into the environment and class 1 or class 2
substance after - ANSJuly 1, 1992
class 1 - ANSCFC
class 2 - ANSHCFC
it became illegal to vent substitutes for CFC and HCFC refridgerants on - ANSNovember 15,
1995
any device which contains and uses a class 1 or class 2 substance as a refridgerant and is used
for household or commercial purpose. - ANSappliance
self contained recovery equipment type - ANSActive
system dependent recovery equipment type - ANSPassive
, only section 609 certified technicians may buy CFC-12 in containers smaller than 20 pounds -
ANS...
who must ensure that all refridgerant has been recovered prior to disposal of any appliance -
ANSThe final person in the disposal chain (scrap metal recycler, landfill owner, ect.)
the removal of refridgerant in any condition - ANSRecovery
to clean refridgerant by oil seperation, non-condensable removal and single or multiple passes
through replaceable filter-driers to reduce moisture, acidity and particulate matter -
ANSRecycling
a complicated distillation process that returns recovered refridgerant to the purity of factory fresh
refridgerant. - ANSReclaiming (ARI Standard 700)
under no circumstance should different refridgerants be - ANSmixed together
Currently there is NOT a drop-in for CFC-12 - ANS...
oils that are hygroscopic - ANSEster based (polyolesters)
the alkylbenzene, use for some ternary blends - ANS...
as a general rule, different lubricants should never be mixed - ANS...
oxygen and oil when mixed can form an - ANSextremely explosive mixture
sight glasses can be cleaned with - ANSalcohol spray
before discarding a container the internal cylinder pressure should be reduced to at least -
ANS0 psig
recovery cylinders must be approved by - ANSDepartment of Transportation (DOT)
Refridgerant cylinders should never be filled above - ANS80% capacity
refridgerant cylinders should always be stored - ANSvertical or upright position with their valves
at the top
Service oses must be fitted with some type of low loss fitting - ANSto prevent the loss of
refridgerant
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