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Terms in this set (119)
the efficiency of the lowering the condenser pressure
refrigerant cycle is
affected by the operation
of the condenser. Of the
following, a more
efficient centrifugal
compressor operation
results from
In most semi hermetic cools the motor
compressors, the suction
vapor is used for
The amount of refrigerant difference between the high side and the low side
that flows through the pressure
orifices of an economizer
is determined by the
the instalation of an inline to remove impurities from the system
refrigerant cleaning
system is advisable
a refrigerant engineer a faulty cooling tower water level controller
verifies that a condenser
pump is cavitation of the
following the most likely
cause for this condition
is:
when an expansion valve only superheated vapor
is operating properly, at
the end of the
evaporator will contain
a centrifugal water pump the pump is full of liquid
is considered to be fully
primed when
A refrigeration temperature and pressure controls
compressor has failed to
turn on. the engineer on
duty verifies the
electrical circuit to the
motor, including all
switches and circuit
breakers is complete,
according to
recomended service
practice, the next item to
be checked would likely
be the:
Refrigerants are ammonia
characterized by their
physical properties
including Flashpoint,
refrigeration effect and
others, of the refrigerants
in commercial and
industrial the highest
latent heat and
refrigerant effect is:
which of the following b3
ashrae refrigerant safety
classification is the most
toxic
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