HVAC Exam Lab
Core, Type I and Type II

Recovery equipment and certification

Why 15 November 1993 keeps appearing.

Why this one catches people

One date governs which performance standard a machine must meet, and the exam keeps testing whether you know which side of it a scenario falls on.

18 questions in our bank map to this material, across 7 outline topics and 2 exam sections (Core (Group I): 3, Type I: Small Appliances: 15).

The date that governs everything

Recovery and recycling equipment is held to a performance standard, and which standard depends on when the machine was manufactured. 15 November 1993 is the dividing line, and it is the same date that changes the evacuation table. That is not a coincidence and it is worth learning them together.

Two kinds of recovery equipment

  • System-dependent (passive) recovery relies on the appliance's own compressor or on pressure differences to move refrigerant out. It is limited to small appliances.
  • Self-contained (active) recovery has its own compressor and can pull refrigerant out of a system that cannot help. It is what larger equipment requires.

Equipment certification and technician certification are two separate things. The exam asks about both, sometimes in the same question, and the distinction is usually the point of the question.

Equipment requirements at 40 CFR 82.158; technician certification at 40 CFR 82.161.

Where people go wrong

  • Confusing equipment certification with technician certification. They are separate regimes and the exam tests both.
  • Assuming system-dependent recovery can be used on anything. It is limited to small appliances.
  • Forgetting that the 1993 date attaches to the recovery machine, not the appliance being serviced.

Drill exactly this

18 questions in the bank cover this material. Anything you miss goes to your notebook so you can come back to it.

Quick practice drill

15 questions · 18 minutes · pass at 70%

Questions are sampled to mirror the official domain weighting. The timer starts when you begin; you can flag questions and return to them before submitting.

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