EPA 608 Type 2 2025 update|comprehensive
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solutions) ASSURED SUCCESS|GRADE A+!!
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Technicians maintaining, servicing, repairing or
disposing of high pressure or very high-pressure
Type 2 appliances, except small appliances and MVAC,
must be certified either as a Universal Technician or
a ______ ___.
After the installation of any type of system, the unit
nitrogen leak
should be pressurized with _____ and _____ checked.
inert Nitrogen is an ______ gas.
In order to determine the general area of a leak,
electronic ultrasonic
technicians should use a _____ or _____ leak detector.
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After locating the general area of a leak, ______ ______
soap bubbles
are used to pinpoint it.
A refrigeration unit using an open compressor that
seal has not been used in several months is likely to leak
from the rotating shaft ______.
During a visual inspection of any type of system, _____
traces oil
of _____ are an indicator of a refrigerant leak.
Excessive ________, caused by a low refrigerant charge,
superheat
is an indication of a leak in a high-pressure system.
A low ______ _______ may be the cause of excessive
refrigerant charge
superheat in a high-pressure system.
Epa regulations require that all comfort cooling
appliances containing more than _____ lbs. of
50 15
refrigerant MUST be repaired when the annual leak
rate exceeds _____ %.
Epa regulations require that all commercial and
industrial process refrigeration systems containing
50 35
more than _____ lbs. of refrigerant MUST be repaired
when the annual leak rate exceeds _____ %.
Recovered refrigerants may contain _____, moisture,
acids
and oil.
Recovered refrigerants may contain acids, ______, and
moisture
oil.
Recovered refrigerants may contain acids, moisture,
oil
and ________.
Because of the acids, moisture, and oil that may be
in recovered refrigerants, it is necessary to
oil filter
frequently check and change both the _____ and _____
on recycling machines.
Recycling and Recovery machines using ______
hermetic compressors may overheat when pulling a deep
vacuum.
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