609 certification
Montreal Protocol
(1987) phase-out of ozone depleting substances international agreement between 24 nations.
Recover recycle/ recover only
2 types of equipment
CFC-12
Can only be sold in small amounts to certified technicians.
reclaim
Cannot be performed in a service shop.
Recycle
Clean refrigerant for reuse
Dry nitrogen
Find leak use
Stratosphere
Located between 7 and 30 miles above Earths surface
MVAC
Motor Vehicle Air Conditioner
recover
Remove refrigerant in any condition from a system and store it in an approved external container
recovery
Remove. At minimum must be able to do this.
PAG or POE
The lubricant used with HFC-134a is
liquid
The proper method for charging a blended refrigerant is in the ______ phase.
27,500
Violation of Section 609 of the clean air act may result in ________ fine per violation.
5
With the recovery unit shut off wait atleast ________ minutes to determine if all refrigerant has been removed.
2
After initial recovery procedures, if additional recovery is required, repeat the process until the A/C system vacuum remains stable for _____ minuites.
27
Empty refillable recovery tanks should be evacuated to _____ inches of mercury before being put into service.
EPA
Environmental protection agency
Nov. 15 1995
HFC-134a must be recovered effective
12
High, low and center service hoses must have shut-off valves within ______ inches of their service ends.
5
Hydrostatically test every _____ years
Intentionally vent
Must never __________ ______ refrigerants into the atmosphere.
UL or DOT
Recovery cylinders must be _____ or _______ approved.
Affinity
Refrigerant oil that is hygroscopic has a high _________ for water.
Recycled
Used disposable refrigerant cylinders can be __________ with other scrap Metal after they are empty.
Barrier
When a blend contains HCFC-22 all hoses must be replaced with _____ type hoses
76 psig
When checking a cylinder of recycled R-134a for non condensable gases at 70 degrees F the pressure should not exceed
