A technician holds Core, Type I and Type III certification and is sent to recover the charge from a twenty ton rooftop unit charged with R-410A. What does that combination of sections allow on this job?
Correct Answer
C) Recovery is not allowed, because a high-pressure appliance needs Type II
Each section covers a specific class of equipment and they do not add up to blanket coverage. Type I reaches small appliances, Type III reaches low-pressure appliances, and neither description fits a twenty ton rooftop unit charged with a high-pressure refrigerant. That equipment belongs to Type II, and without that section the technician may not open the appliance or operate recovery equipment on it.
Why This Is the Correct Answer
A twenty ton rooftop unit charged with R-410A is a high-pressure appliance and is far above the small appliance description. The only section that covers it is Type II. Holding Type I and Type III gives the technician small appliances and low-pressure machines, which leaves the largest category of commercial equipment uncovered.
Why the Other Options Are Wrong
Option A: Recovery is allowed, since holding three sections covers all equipment
Sections do not accumulate into general coverage. A technician holding every section except the relevant one is uncertified for that equipment.
Option B: Recovery is allowed, since Type III covers any appliance above five pounds
Type III is defined by the low-pressure class, not by charge size. It gives no authority over a high-pressure rooftop unit of any capacity.
Option D: Recovery is allowed only if the charge turns out to be under fifty pounds
The fifty pound figure governs the leak repair provisions. It has nothing to do with which certification section a technician needs.
Memory Technique
One and three do not make two. The sections do not add up, they only stack side by side.
Reference Hint
Type II is the section that covers high-pressure appliances; Type I and Type III do not reach them at any size.
More epa-608-type-2 Questions
A walk-in cooler condensing unit holds a full charge of twenty-five pounds of R-404A, which is below the fifty pound threshold that brings an appliance under the leak repair provisions. What still applies to this unit?
An office building has thirty water source heat pumps on a common water loop, and each one left the factory assembled, hermetically sealed and charged with four pounds of R-410A. How is one of those units classified?
A data sheet for an unfamiliar refrigerant lists a boiling point of about fifty-five degrees Fahrenheit at atmospheric pressure. What does that tell a technician holding Core and Type II certification?
A fleet garage technician holds only the vehicle air conditioning certification issued under Section 609 and is asked to recover the charge from the shop's own rooftop air conditioner. What does that credential allow?
A split system's outdoor unit, indoor coil and the line set the installer ran and brazed between them are being considered. For the purposes of the refrigerant rules, what makes up the appliance here?
On a new installation the line set is brazed to a factory charged outdoor unit and an indoor coil shipped under a nitrogen holding charge, with the outdoor unit's service valves still closed. What does the recovery requirement call for before that brazing?
A rooftop unit's data plate has weathered until the charge figure cannot be read, and the technician needs the full charge to place the appliance under the evacuation and leak provisions. Where should that figure come from?
A computer room air conditioning unit holds forty pounds of R-407C and connects to a remote air cooled condenser through refrigerant piping run and brazed by the installer. How is that unit classified?
A shop's office manager, who holds no technician certification, is sent to a supply house to pick up a new recovery machine for the commercial crew. What does the sales restriction require at that counter?
An older chiller is charged with R-114, a refrigerant that boils just below forty degrees Fahrenheit at atmospheric pressure. Which class does the regulation place that appliance in?
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