A walk-in cooler condensing unit holds roughly four pounds of refrigerant, but the line set was brazed and the system was charged out at the job site. Does that unit meet the definition of a small appliance?
Correct Answer
D) No, because a small appliance must be fully manufactured, charged, and sealed at the factory
The charge limit is only one of the conditions. A small appliance also has to be fully manufactured, charged, and hermetically sealed before it ever leaves the plant. This walk-in was piped and charged in the field, so it fails the manufacturing conditions even though its charge is under the limit. That puts it in the general high-pressure appliance class, and Type II certification is required to open it. Technicians who remember only the five-pound number will misclassify field-assembled equipment that happens to carry a small charge.
Why This Is the Correct Answer
All of the conditions must be satisfied together. Factory manufactured, factory charged, factory hermetically sealed, and five pounds or less. Failing any single one removes the appliance from the small appliance category, and field charging fails two of them at once.
Why the Other Options Are Wrong
Option A: Yes, because the charge is under five pounds and that is the only test that applies to the category
The five pound figure is a ceiling, not the whole definition. A field-piped system under five pounds is still a high-pressure appliance, because the factory never assembled, charged, and sealed it.
Option B: Yes, because walk-in coolers are named in the small appliance category by type
Nothing is classified by product name. Some walk-in equipment ships as a sealed package and would qualify, but this one was brazed and charged on site, so it does not.
Option C: No, because small appliance status requires an older chlorinated refrigerant charge
Refrigerant chemistry plays no part in the small appliance definition. The service and disposal rules reach ozone depleting refrigerants and their substitutes alike, whatever the box is charged with.
Memory Technique
Four checkboxes, not one: built, charged, sealed, and five or less. Miss one box and it is Type II.
Reference Hint
40 CFR 82.152: small appliance means fully manufactured, charged and hermetically sealed in a factory with 5 lbs or less of refrigerant.
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 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?
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