#2 EPA 608 Type I

After installing and opening a piercing access valve, the recovery procedure cannot begin if the system is at what pressure?

• 75 psig

• 50 psig

• 30 psig

• 0 psig

All appliances must be equipped with a service aperture or process stub which is used when adding or removing refrigerant from the appliance. What is typically used on small appliances?

• A straight piece of tubing that is entered using a piercing access valve.

• A line located 15 inches below the compressor

• A valve installed at the factory which has a 1/4 inch diameter and machine threads.

• A service aperture is not present because small appliances are exempt from this requirement.

Equipment which is used to recover CFC, HCFC, and HFC refrigerant from small appliances for the purpose of disposal must meet what standard?

• Recover 95% or the refrigerant whether or not the compressor is operative.

• Recover 80% of the refrigerant with an inoperative compressor and 90% of the refrigerant with an operative compressor.

• Recover 90% of the refrigerant with an inoperative compressor and 80% of the refrigerant with an operative compressor.

• Recover 75% of the refrigerant within 5 minutes.

For which of the following refrigeration systems/appliances would it be permissible to use a passive recovery device for recovery of CFCs, HCFCs, and HFCs?

• A centrifugal air conditioner

• A reciprocating liquid chiller

• A single compressor, large commercial walk-in freezer

• A domestic refrigerator

If a large leak of refrigerant occurs, such as from a filled cylinder in an enclosed area, what action should be taken when no self-contained breathing apparatus is available?

• Use butyl lined gloves and try to stop the leak.

• Use a leak detector to locate the leak and try to stop the leak.

• Vacate and naturally ventilate the spill area.

• Make sure the unit is de-energized, close the service valves and try to stop the leak.

If a reclamation facility receives a tank of mixed refrigerant, they may;

• refuse to accept the refrigerant or charge extra for processing it.

• vent the refrigerant.

• resell the refrigerant for reuse in its current state.

• agree to separate the refrigerants, by the tracking process.

New household refrigerators may be factory charged with any of the following refrigerants, EXCEPT;

• R-290

• R-450A

• R-600a

• R-404A

Permanent safety markings are NOT required on which of the following areas on household refrigerators using HC refrigerants?

• On or near any evaporators and near any exposed refrigerant tubing.

• Near the machine compartment.

• On the inside of the refrigerator door.

• On the exterior of the refrigerator.

Recovery devices for use with small appliances containing CFCs, HCFCs, and HFCs must meet which of the following requirements?

• Recovering 90% of the refrigerant when the compressor is operating or achieving a 4-inch vacuum under the conditions of AHRI 740.

• Recovering 80% of the refrigerant when the compressor is operating.

• Recovering 95% of the refrigerant when the compressor is operating or achieving a 10-inch vacuum under the conditions of AHRI 740.

• Recovering 75% of the refrigerant when the compressor is operating.

The sale of CFC, HCFC, HFC, and HFO refrigerants to service or install refrigeration and air conditioning equipment is;

• banned from use unless you have a recovery machine.

• limited by law to HVAC Contractors and/or Mechanical Engineers.

• allowed only if there is proof of need.

• restricted to technicians who are EPA certified in refrigerant recovery.