1
a domestic refrigerator is an example of a appliance on which it would be permissible to use a (blank) recovery device
passive
hydrocarbon (HC) (blank) is an approved refrigerant for new household refrigerators and freezers.
R-600a or isobutane
a (blank) device are acceptable methods for monitoring that the fill level in a recovery tank does not exceed 80%
refrigerant scale or tank internal float
a pungent odor from the refrigerant normally indicates (blank)
a compressor burn-out
(blank) is used to pressurize or blow debris out of the system.
nitrogen
WHEN FILLING A CHARGING CYLINDER, THE REFRIGERANT THAT IS VENTED OFF THE TOP MUST BE (BLANK)
recovered
(blank) means to remove refrigerant, in any conduction from a system and storing it.
recover
(blank) means to extract refrigerant from a appliance and clean the refrigerant for reuse in equipment of the same owner.
recycle
THERE'S NO SUCH THING AS A (BLANK) SUBSTITUTE.
drop in
(blank) is processing the refrigerant to a level equal to a new or virgin product specifications determined by chemical analysis.
reclaim
because solderless type piercing valves tend to (blank), they should not remain on the refrigeration systems after completion of the repair.
leak over time
when servicing a small appliance found to be leaking, it is not mandatory to (blank), but its recommended to do so whenever possible
repair the leak
WITH A INOPERATIVE COMPRESSOR, THE EQUIPMENT USED TO RECOVER MUST BE ABLE TO RECOVER (BLANK) OR THE REFRIGERANT OR ACHIEVE (BLANK) INCHES OF VACUUM.
80% or 4 hg
if there is a large leak of refrigerant in enclosed area and there's no breathing apparatus available, you should
vacate and ventilate
SELF CONTAINED RECOVERY DEVICES MUST BE ABLE TO RECOVER (BLANK) OF THE REFRIGERANT WHEN THE COMPRESSOR IS OPERATING.
90%
MVAC-LIKE SYSTEMS DO NOT MEET THE CRITERIA FOR (BLANK) APPLIANCE CERTIFICATION NO MATTER THE TYPE OF REFRIGERANT.
IF THE PRESSURE IS (BLANK) AFTER OPENING A PIERCING ACCESS VALVE, THE RECOVERY CANNOT BE BEGIN.
0 PSIG
(BLANK) IS A VERY HIGH PRESSURE REFRIERANT AND GENERALLY DOES NOT NEED TO BE RECOVERED.
carbon dioxide
passive recovery equipment use for an appliances containing HCFCs or HFCs ae limited to a maximum charge of (blank)
15 pounds
BOTH (Blank) SHOULD BE INSTALLED WHEN RECOVERING REFRIGERANT FROM A HOUSEHOLD REFRIGERATOR OR ANY OTHER APPLIANCE TO IMPROVE THE SPEED OF RECOVERY.
high and low side
R-744 is also known as (blank)
carbon dixoide
A VACUUM PUMP MADE FOR SYSTEM DEHYDRATION MAY BE USED WITH A RECOVERY CYLINDER TO BE USED AS A (BLANK)
recovery device
when refrigerants are recovered, it should be recovered into a recovery vessel that is clearly marked as to its content in order to ensure (blank)
mixing of refrigerants does not occur
IF A TECH SUSPECTS CONTAMINATION IN HIS RECOVERY CYLINDER, A (BLANK) SHOULD BE TAKEN AND COMPARED TO THE (BLANK)
pressure measurement, PT chart
(blank) is typically used on small appliances is a straight piece of tubing that is entered using a piercing access valve.
the service aperture or process stub