COMPLETE QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) |
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Practice questions for this set
Terms in this set (139)
On low pressure chillers, air leaks from areas with gaskets or fittings
moisture typically enters the
refrigerant system through
The maximum test pressure 10 psig
for leak testing a low
pressure centrifugal is:
A hydrostatic tube test kit is determine if a tube leaks
used to:
15 psig
A rupture disc on a
recovery vessel for a low
pressure refrigerants
relieves at:
According to ASHRAE 2.5 mm Hg
Guideline 3-1996, if the
pressure in a system rises
from 1 mm Hg to a level
above ____ during a standing
vacuum test, the system
should be checked for leaks.
, The primary water source local municipal water supply
for a recovery unit
condensing coil is _____.
When recharging a 16.9" Hg vacuum
refrigeration system with R-
11, what vaporpressure is
necessary in the shells before
changing with liquid?
After recovering the liquid recover the vapor refrigerant
refrigerant you must:
According to the EPA there is 100 pounds
approximately _____
refrigerant vapor left in an
average 350 ton R-11 chiller
at 0 psig pressure once all
the R-11 liquid has been
removed.
Charging refrigerant liquid system water to freeze
into a refrigeration system
when it is under a 29 inch
Hg vacuum can cause the:
leaks in the appliance make evacuation to the prescribed level
A system does not have to be unattainable
evacuated all the way to the
required level when:
Which of the foloowing replacement of evaporator coil
repairs would ALWAYS be
considered "major" under
EPA's