EPA 608 study material including (Core,
type 1, 2 and 3) questions and answers
100% pass
a vacum pump should be connected ✔✔as far away from the pump as possible
a high capacity vacuum pump and short, large diameter
...
EPA 608 study material including (Core,
type 1, 2 and 3) questions and answers
100% pass
a vacum pump should be connected ✔✔as far away from the pump as possible
a high capacity vacuum pump and short, large diameter hoses will ✔✔dramatically reduce
emissions, pressure drop, and evacuation/dehydration time
ozone contains three ✔✔oxygen atoms
one chlorine atom can destroy ✔✔100,000 ozone molecules
CFC's do not dissolve in water and do not breakdown into other compounds that dissolve in
water ✔✔CFC's cannot be washed out of the lower atmosphere
ODP ✔✔ozone depletion potential
azeotrope ✔✔where the mixture behaves like a single chemical (new refrigerant)
HFC's will not damage the ozone in the stratosphere ✔✔...
in 1992 the united states ordered the stoppage of all CFC production and importation after
✔✔December 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 ✔✔July 1, 1992
class 1 ✔✔CFC
class 2 ✔✔HCFC
it became illegal to vent substitutes for CFC and HCFC refridgerants on ✔✔November 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. ✔✔appliance
self contained recovery equipment type ✔✔Active
system dependent recovery equipment type ✔✔Passive
only section 609 certified technicians may buy CFC-12 in containers smaller than 20 pounds
✔✔...
who must ensure that all refridgerant has been recovered prior to disposal of any appliance
✔✔The final person in the disposal chain (scrap metal recycler, landfill owner, ect.)
the removal of refridgerant in any condition ✔✔Recovery
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 ✔✔Recycling
a complicated distillation process that returns recovered
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