A contractor asks a technician to repair the cab air conditioning on an excavator, which the regulation treats as an appliance rather than as motor vehicle air conditioning. Which certification does that repair call for?
Correct Answer
C) Type II certification, which covers this kind of off-road cab system
Air conditioning that cools the cab of construction and agricultural equipment sits outside the motor vehicle rules, because those rules were written around cars and light trucks on the road. Equipment of this kind is handled as an appliance under the stationary program, and the certification the program assigns to it is Type II. The small charge does not move it to Type I, because these systems are field serviceable and are not factory sealed in the way that definition requires.
Why This Is the Correct Answer
Cab cooling on off-road equipment such as excavators, tractors and loaders is regulated as an appliance rather than as motor vehicle air conditioning, and the section that applies to it is Type II. A technician holding only a vehicle air conditioning credential is not covered for this work, and a technician with Core and Type II is.
Why the Other Options Are Wrong
Option A: A vehicle air conditioning certification issued under Section 609
The vehicle program covers air conditioning in on-road passenger cars and light trucks. Cab systems on construction and farm equipment are handled under the stationary rules instead.
Option B: No certification, because construction equipment is exempt from these rules
Nothing about this equipment is exempt. The refrigerant still has to be recovered and the technician still has to be certified before the system is opened.
Option D: Type I certification, because the cab system holds only a few pounds
Type I turns on the small appliance description, which requires a factory charged, hermetically sealed unit. An open-drive cab system does not meet it at any charge size.
Memory Technique
Excavators and tractors do not get license plates, and they do not get the vehicle certification either.
Reference Hint
Cab air conditioning on non-road equipment is handled under the stationary rules and calls for Type II certification.
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?
People Also Study
Business & Financial Management
120 questions · 70% to pass
Contract Administration
60 questions · 70% to pass
Project Management
60 questions · 70% to pass
Related Study Resources
Previous Question
A technician finds a halide leak detector torch in an older toolbox and wonders whether to use it while looking for a leak on an R-410A system. Why is that tool the wrong choice today?
Next Question
A technician must pull a 400 lb charge out of a supermarket rack before replacing the receiver, and the store has only a few hours of downtime. Where should the recovery machine inlet be connected to move the most refrigerant in the least time?