.0 0 - ANSWER-Required Recovery Levels in Inches of Mercury:
HCFC-22 appliance or isolated component of such, normally containing LESS
than 200 lbs. of refrigerant:
Equipment
before 11/15/93_____
after 11/15/93_____
.0 0 - ANSWER-Required Recovery Levels in Inches of Mercury:
Very high pressure appliances
Equipment
before 11/15/93_____
after 11/15/93_____
.0 psig - ANSWER-Atmospheric pressure
.10 - ANSWER-To change the compressor on a system containing 40 pounds of
R-500, using a recycling machine that was manufactured AFTER November 15,
1993, you must isolate the compressor, then: evacuate the isolated section of
the system to ____ inches of vacuum and hold. If the system pressure does not
rise, remove the compressor.
, .120 - ANSWER-When charging an R-410A system that uses a water-cooled
condenser, you must first charge with vapor to a pressure of at least ______ psig
before switching to liquid.
.123 - ANSWER-For what refrigerant is an equipment room refrigerant monitor
required under ASHRAE standard 15? R-____.
.125 R22 - ANSWER-While R-410A is a high-pressure refrigerant, it can be stored
in the back of your service van as long as: The temperature inside the vehicle
does not exceed _____ F. This is the same guidance given for ____ and other
common refrigerants.
.134 - ANSWER-Technicians working with multiple refrigerants, before
recovering and/or recycling a different refrigerant, must purge the
recover/recycle equipment by recovering as much of the first refrigerant as
possible, change the filter, and evacuate. Exception: technicians working with
______.
.15 - ANSWER-ASHRAE standard _____ requires a refrigerant sensor that will
sound an alarm and automatically start a ventilation system in occupied
equipment rooms where refrigerant from a leak will concentrate.
.15 - ANSWER-System dependent recovery equipment cannot be used on
appliances containing more than _____ pounds of refrigerant.
.15 - ANSWER-When using recovery or recycling equipment that was
manufactured AFTER November 15, 1993: You must evacuate a system
containing MORE than 200 pounds of CFC-12 to _____ inches of Hg vacuum
before making a major repair.