The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______.
Restricted to technicians who are EPA certified and refrigerant recovery
A
... [Show More] small Pliance is defined as a system that is
Manufactured, fully charged, and hermetically sealed in a factory with a charge of 5 pounds or less
A __________ recovery device can be use for type 1 small appliance applications or type 2 applications if the total charge is below 15 pounds.
System dependent
You must have a self-contained recovery machine available unless you only work on
Small appliances
Recovery devices for use with small appliances must be capable of
Recovering 90% of the refrigerant when the compressor is operating
The hydrocarbon refrigerant approved for retrofit into existing household refrigerators is
None. Hydrocarbons are not approved for any retrofit applications
New household refrigerators with a charge of less than 57 grams (2 ounces weight) can use any of the following refrigerants, except.
R-1235yf
And exempt refrigerant is any refrigerant that has a 0 Ozone depletion potential (0 ODP) any global warming potential (GWP) equal to or lower than carbon dioxide, that is a GWP of _________ or less.
1
What is not a small appliance?
An MVAC-like system that holds 3 pounds of R-22
Any system with a charger less than ________ pounds can you system dependent recovery equipment.
15
Anytime pressurized nitrogen is put into the system, the nitrogen gas
Maybe vented to the ambient air
When a tank of mixed refrigerant is sent to a reclaimer, they can
Either refuse to except the refrigerant or charge extra for processing it
A passive system dependent recovery process
Recovered refrigerant in a non-pressurized container
What is the pressure of a storage cylinder of R-134A, that is stored in a room where the temperature is 100°F?
124 PSIG
What is the pressure of a storage cylinder of R-404A, that is stored in a room where the temperature is 100°F?
237 psig
Any refrigerant that is vented off the top of the charging cylinder
Must be recovered
Recovery of refrigerant cannot begin if the initial pressure in the system is
0 psig
What is the pressure of the storage cylinder of R-410a, that is stored in a room where the temperature is 100°F?
319 psig
To reach the necessary recovery level, when using a ________, it will most likely be essential to heat and strike the compressor with a rubber mallet to release any refrigerant.
Passive recovery devices on a small appliance with a non-operating compressor
You must know the ________ before beginning a refrigerant recovery.
Type of refrigerant that is in the system
Nitrogen tanks should always be equipped with a ________.
Pressure regulator and pressure relief valve downstream of the regulator
If a large leak of refrigerant occurs, __________.
Immediately vacate in naturally ventilate the area
A very large refrigerant leak can cause Suffocation because refrigerants
Are heavier than air and displace oxygen [Show Less]