A technician is certifying to work on R-22 and R-410A air conditioners, supermarket racks, and heat pumps. Which EPA technician type covers high-pressure and very-high-pressure appliances?
a.Type III
b.Type I
c.Type II
d.Section 609 only
解析
Type II certification covers high-pressure and very-high-pressure appliances, such as R-22 and R-410A systems, supermarket racks, and heat pumps. Type I covers small appliances and Type III covers low-pressure appliances. A Universal certification includes all three types.
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同考点相关题目
- A technician uses recovery equipment manufactured after November 15, 1993 on an R-22 split system that normally holds less than 200 pounds of refrigerant. To what level must the appliance be evacuated during recovery?
- A supermarket rack system holds 350 pounds of R-404A. Using recovery equipment manufactured after November 15, 1993, to what vacuum must the technician evacuate during recovery?
- A technician recovers R-22 with an older recovery unit manufactured before November 15, 1993 from a system holding 250 pounds. What is the required evacuation level?
- A technician must recover a large liquid charge from a supermarket rack quickly. Which recovery method moves the most refrigerant in the least time for large systems?
- A technician wants to speed up vapor recovery from an R-410A condensing unit. Which practice will increase recovery speed?
- After replacing a compressor on an R-410A system, a technician needs to remove moisture and noncondensables before charging. Which procedure is the correct way to dehydrate the system?
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