A contractor operates portable dehumidifiers that came factory sealed with twelve ounces each, and one large ducted dehumidification unit whose refrigerant piping was brazed together on site. Which of these may a Type I technician open?
Correct Answer
D) Only the portable units, because the ducted one was piped together in the field
The portable units were manufactured, charged and hermetically sealed at the factory with twelve ounces apiece, which satisfies every part of the small appliance definition and puts them squarely under Type I. The ducted unit fails the definition at the first test: its refrigerant circuit was completed with brazed joints made at the job site, so it was never factory sealed as a unit. That puts it outside Type I regardless of how much refrigerant it holds. The two machines do the same job in the same building under two different certifications.
Why This Is the Correct Answer
Small appliance status turns on how the refrigerant circuit was completed. The portable dehumidifiers left the plant assembled, charged and hermetically sealed, so a Type I technician may open them. The ducted unit had its refrigerant piping brazed on site, which means the circuit was completed in the field rather than at the factory, and that alone removes it from the small appliance category.
Why the Other Options Are Wrong
Option A: Neither one, because dehumidifiers sit outside the Section 608 program entirely
Dehumidifiers containing a covered refrigerant are appliances under Section 608 just like any other refrigeration equipment, and the portable ones are textbook small appliances.
Option B: Both of them, because dehumidification equipment is treated as a single appliance class
Appliance class is decided unit by unit from construction and charge. Two machines performing the same function can land in different categories.
Option C: Only the ducted unit, because its larger circuit is what Type I was written to cover
Type I was written for factory sealed units with small charges. A field piped circuit is the opposite of what the category covers, whatever its size.
Memory Technique
If somebody brazed it on site, it was never a small appliance.
Reference Hint
A small appliance is manufactured, charged and hermetically sealed in a factory. Field piped equipment is outside Type I no matter what it holds.
More epa-608-type-1 Questions
An under-counter ice maker is one factory-sealed cabinet, while a modular ice machine head is joined to a remote condenser by field-run tubing. What certification does servicing the modular machine's circuit require?
A technician recovers refrigerant from a small appliance using a recovery machine that was manufactured in 1991. What recovery level must that older equipment achieve?
Two technicians recover from identical refrigerators with working compressors, one using a 1991 recovery machine and the other a 2015 machine. Why do their required recovery levels differ?
System-dependent recovery equipment may be used only on appliances that normally hold up to what amount of refrigerant?
What feature defines a self-contained recovery unit and sets it apart from the system-dependent kind?
When system-dependent recovery equipment is used on a small appliance whose compressor still runs, how can that working compressor be put to use?
Recovery from a small appliance has slowed down and the pressure is barely moving. What accepted technique helps drive the remaining refrigerant out?
After the recovery unit stops pulling on a small appliance, how does a technician confirm that the recovery is actually complete?
A sealed small appliance offers no service port at all. What has to happen before recovery equipment can be connected to it?
As refrigerant from a string of small appliances collects in a recovery cylinder, what fill limit applies to that cylinder?
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