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A capillary tube or fixed-orifice in small sealed domestic refrigeration is primarily fixed for which operating envelope compared with a TXV in larger split systems?

Choices

  • (A) Always matches any indoor RH
  • (B) Unlimited part-load with perfect SH
  • (C) Replaces ventilation OA
  • (D) One design mass-flow/pressure-temperature locus; not actively modulated like TXV, cost-driven trade-off in small units

Correct answer: (D)

One design mass-flow/pressure-temperature locus; not actively modulated like TXV, cost-driven trade-off in small units

Explanation

Cap-tube: cheap, but narrow envelope; TEV/EXV: control.

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Question 36 of 80