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recovery-recycling

Recovery from Low-Pressure Appliances

Always tested on the EPA 608

Recover refrigerant from low-pressure systems (chillers, R-11, R-113).

About this skill

Recovery from low-pressure appliances (centrifugal chillers, R-11, R-113, R-123 systems) using a low-pressure-rated recovery machine that can pull a vacuum.

12 total steps
5 critical steps
Time limit: 20 min

What graders are watching for

  • 1
    Low-pressure recovery requires a vacuum-rated machine
  • 2
    Recovery threshold: 0 psig held for 5 minutes
  • 3
    R-11 and R-113 are CFCs being phased out

Common mistakes (and how to avoid them)

  • !
    Using a high-pressure recovery machine (cannot pull vacuum)
  • !
    Stopping recovery at 0 psig without holding for 5 minutes
  • !
    Failing to identify the refrigerant before recovery

Practice this skill step-by-step

The static walkthrough above is the marketing overview. The full step-by-step interactive practice (with critical-step highlighting, per-step "why this matters" rationale, and what graders watch for on each individual step) is unlocked with a subscription.

View pricingTry 10 practice questions

Related recovery recycling skills

Recovery from High-Pressure Appliances
Recover refrigerant from high-pressure systems (R-22, R-410A, R-134a).
On-Site Recycling of Recovered Refrigerant
Recycle recovered refrigerant through an ARI-740 certified machine.