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IN HCFC22 CONVERSIONS: SINGLE- AND TWO-STAGE LOW-TEMPERATURE SYSTEMS PREFERRED.

Type of article: Article

Summary

A DISCUSSION IN THE USA CONCERNED THE REPLACEMENT OF R502 BY R22 IN SUPERMARKET SYSTEMS. WHERE SUMMER AIR TEMPERATURES ARE NOT EXCESSIVE, SINGLE STAGE SYSTEMS WERE PREFERRED WITH SUCTION DESUPERHEATING IF NECESSARY. ELSEWHERE TWO-STAGE SYSTEMS WERE RECEIVED WITH RELUCTANCE DUE TO THE ADDITIONAL COMPLICATIONS AND THE LACK OF TRAINED SERVICE PERSONNEL. ALTHOUGH R134A IS NOW BEING PRODUCED FOR MEDIUM TEMPERATURE SYSTEMS, USERS ARE RELUCTANT TO ADOPT IT UNTIL IMMEDIATE SUPPLIES ARE AVAILABLE LOCALLY. D.W.H.

Details

  • Original title: IN HCFC22 CONVERSIONS: SINGLE- AND TWO-STAGE LOW-TEMPERATURE SYSTEMS PREFERRED.
  • Record ID : 1991-2464
  • Languages: English
  • Source: Air Cond. Heat. Refrig. News - vol. 182 - n. 6
  • Publication date: 1991
  • Document available for consultation in the library of the IIR headquarters only.

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