Explanation:
Approved refrigerant recovery cylinders can easily be identified by their colors: yellow tops and grey bodies.
Explanation:
When transporting cylinders containing used refrigerant, a Department of Transportation (DOT) classification tag and label must be attached to the cylinders.
Explanation:
One of the most serious results from the thinning and damaging of the stratospheric ozone layer is an increase in the rates of skin cancer in humans.
Explanation:
Hydrocarbon (HC) R-600a is an approved refrigerant for new household refrigerators, freezers, and combination refrigeration/freezers.
Explanation:
Persons handling refrigerant during maintenance, service or repair of small appliances must be certified as either a Type I Technician or as a Universal Technician.
Explanation:
You should never energize the compressor. A hermetic compressor's motor winding could be damaged if energized when under a deep vacuum.
Explanation:
The introduction of CFCs and HCFCs has dramatically changed our lifestyles. Little did we know that the use and release of these compounds into the atmosphere would have far-reaching effects on our environment. The greatest effect is in the stratosphere, far removed from the Earth's surface.
Explanation:
An appliance with an operating compressor and completely restricted capillary tube or metering device requires only one access valve on the high side of the system.
Explanation:
The chlorine in CFCs and HCFCs will neither dissolve in water nor break down into compounds that dissolve in water, so they do not rain out of the atmosphere.
Explanation:
When nitrogen is used to pressurize or blow debris out of the system, the nitrogen may be vented to the ambient air.
Explanation:
The EPA definition of a small appliance includes products manufactured, charged, and hermetically sealed in a factory with five pounds of refrigerant or less.
