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How far above the adjoining ground level must an absorption refrigerating system's concrete slab extend?

  1. 3 inches below

  2. 3 inches above

  3. 6 inches below

  4. 6 inches above

The correct answer is: 3 inches above

An absorption refrigerating system’s concrete slab must extend 3 inches above the adjoining ground level to prevent possible water accumulation around the system. This elevation helps to ensure drainage away from the unit, avoiding water infiltration that can lead to corrosion, electrical issues, or other operational problems. Proper positioning enhances overall system longevity and efficiency, making it a critical installation requirement in HVAC practices. Maintaining this height prevents damage during heavy rains or flooding, safeguarding the system components and ensuring reliable performance.