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?
Correct Answer
B) Type II certification, because the modular machine's refrigerant circuit is completed in the field
Ice machines land on both sides of the line. A self-contained under-counter unit is assembled, charged, and sealed at the factory with a small charge, so it is a small appliance under Type I. A modular head with a remote air-cooled condenser is piped and charged on the job, which makes it field-assembled high-pressure equipment under Type II. The function of the equipment is irrelevant; what decides the category is whether the factory closed the refrigerant circuit or an installer did.
Why This Is the Correct Answer
Running refrigerant lines between a modular ice head and a remote condenser means the circuit is finished on site with field-made joints. That fails the factory assembly and sealing test in the small appliance definition, so the completed machine is high-pressure equipment requiring Type II certification to open.
Why the Other Options Are Wrong
Option A: Type I certification, because both machines make ice and hold comparably small charges
Equipment function has no bearing on the category. Two machines that both make ice can fall under different certification types depending on whether the circuit was completed at the factory or in the field.
Option C: Type III certification, because ice machines run very low evaporator temperatures
Low evaporator temperature is not what Type III describes. Type III covers low-pressure appliances that operate below atmospheric pressure, meaning centrifugal chillers, not ice machines running high-pressure refrigerant.
Option D: No additional certification, because the remote condenser holds no refrigerant while the machine is idle
A remote condenser is part of the sealed refrigerant circuit and holds refrigerant whether the machine is running or not. Idle equipment is still charged equipment.
Memory Technique
Self-contained equals one cabinet equals Type I. Split it across a wall and it splits into Type II.
Reference Hint
40 CFR 82.152 small appliance definition; field-assembled high-pressure systems fall under Type II per 82.161.
More epa-608-type-1 Questions
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?
A technician recovers R-134a into a cylinder that still holds recovered R-12 from an earlier job. What is the consequence for that refrigerant?
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