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Heat pumps that have been retrofitted from R22 to R407C should be leak checked with: pressurized nitrogen When a new system has been assembled, the first thing to do is: pressurize the system with inert gas and leak check EPA regulations require that leaking commercial or industrial process re...

What type of equipment can be worked on with Type III certification? low pressure The most efficient method of leak checking a charged low-pressure refrigeration unit is to pressurize the system by the use of controlled hot water or heater blankets When pressurizing a system, do not exceed 10 ps...

Reusable refrigerant containers under high-pressure must be hydrostatically tested how often? 5 years How much can a person be fined per day per violation for knowingly releasing a regulated substance that violates the Clean Air Act? $44,539 HCFCs contain Hydrogen, Chlorine, Fluorine, and Carb...

As of what date did it become unlawful to release Class 1 and Class II refrigerants to the atmosphere? July 1, 1992. What is the ozone layer and why is it important to us on Earth? Protective shield for Earth from the sun's harmful ultraviolent (UV) rays in the stratosphere layer that extends ...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? November 14, 1994 Section 608 of the Federal Clean Air Act requires technicians to what? Recover all refrigerants. The objective of the Clean Air Act is to protect what? The earth's stratos...

What date was the sale of CFC's & HCFC's restricted to technicians certified in refrigerant recovery? November 14, 1994 1987- Montreal Protocol July 1 1992- Violation to vent CFCs or HCFCs Nov 15 1993- Recovery/Recycling equipment must be certified and labeled by EPA AND Before this dat...

Where is the stratosphere? 10 to 30 miles Where is ozone located? stratosphere What does an ozone molecule consist of? 3 oxygen atoms The ozone layer protects us from... ultraviolet radiation The ozone layer helps to maintain... stable earth temperatures

The sale of reclaimed CFC, HCFC, HFC, and HFO refrigerants is_______. Restricted to technicians who are EPA certified and refrigerant recovery A 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 __...

a vacum pump should be connected as far away from the pump as possible a high capacity vacuum pump and short, large diameter hoses will dramatically reduce emissions, pressure drop, and evacuation/dehydration time ozone contains three oxygen atoms one chlorine atom can destroy 100,000 ozone mol...

Recovery equipemnt used for the service or repair of small appliances must be certified by an EPA approved lab if the recovery equipment was made after November 15, 1993 Recovery devices made before 11-15-93 and are used for recovery of refrigerant from small appliances must be capable of: reco...

On low pressure chillers, moisture typically enters the refrigerant system through air leaks from areas with gaskets or fittings The maximum test pressure for leak testing a low pressure centrifugal is: 10 psig Leak test and repair the chiller to reduce refrigerant loss from a pruge unit on CFC-...

Technicians who perform sealed system service on small appliances must have; Type I or universal certification A small appliance is defined by EPA as; Appliances manufactured, charged, and hermetically sealed in a factory with 5 lbs or less of refrigerant Type I Certification is required for; ...

Refrigeration technicians who violate the Clean Air Act can: - Lose their EPA certification, be fined, be required to appear in Federal court. After 1995, any supplies of CFC refrigerants to service existing units in the USA can only come from: - recovery and recycling. Refrigerant that is rec...

When a new system has been assembled, the first thing to do is? Pressurize the system with an inert gas & leak check. After installation of a field-piped R-410A split heat pulp, the unit should first be? Pressurized with nitrogen then leak checked. The EPA regulations require that any applianc...