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?
Correct Answer
A) Recovery before opening and the ban on releasing refrigerant still apply
The fifty pound figure decides one thing: whether an appliance falls under the leak repair provisions, which put an owner on a clock to fix leaks above a set rate. Everything else in the program applies at any charge size. Refrigerant may not be knowingly released, the unit has to be evacuated to its required level before it is opened, the work has to be done by a certified technician with certified equipment, and the charge has to be recovered at disposal.
Why This Is the Correct Answer
Falling below fifty pounds only exempts an appliance from the leak repair provisions. The venting prohibition, the evacuation requirement before opening, the technician and equipment certification requirements and the recovery obligation at disposal all apply to a twenty-five pound condensing unit exactly as they apply to a three hundred pound rack.
Why the Other Options Are Wrong
Option B: Nothing applies until the charge reaches the fifty pound threshold
There is no charge size below which the program stops applying. Even a one pound appliance may not be vented and must be recovered before it is opened.
Option C: Only the sales restriction applies, since the charge is under fifty pounds
The sales restriction is one requirement among many and has nothing to do with charge size. Recovery and evacuation obligations apply here as well.
Option D: Only the technician certification requirement applies to a unit this size
Certification is required, but it is not the only thing. Recovery before opening and the ban on releasing refrigerant apply to this unit too.
Memory Technique
Under fifty pounds you lose the leak clock, not the law.
Reference Hint
The fifty pound figure sets which appliances fall under the leak repair provisions; all other requirements apply at any charge size.
More epa-608-type-2 Questions
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 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?
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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