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VRV or VRF

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What is the difference between VRV & VRF systems?

Comments

  • hot_rod
    hot_rod Member Posts: 22,143
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    Bob "hot rod" Rohr
    trainer for Caleffi NA
    Living the hydronic dream
    kcoppGGross
  • ratio
    ratio Member Posts: 3,626
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    One's a trademark IIRC, the other not.

    In the vernacular they're interchangeable; when I'm talking to the factory I'll often use the other guys' terms. Try it, it's fun!

  • retiredguy
    retiredguy Member Posts: 905
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    You will always get the same result when talking about relief valves as in "the relief valve on my steam boiler is set at 15PSIG". Wrong, that should be the safety valve on my steam boiler. Relief valves are for water, safety valves are for steam, as per the insurance and state inspectors in Pennsylvania.
  • EdTheHeaterMan
    EdTheHeaterMan Member Posts: 7,837
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    You will always get the same result when talking about relief valves as in "the relief valve on my steam boiler is set at 15PSIG". Wrong, that should be the safety valve on my steam boiler. Relief valves are for water, safety valves are for steam, as per the insurance and state inspectors in Pennsylvania.

    But what do they know!
    Edward F Young. Retired HVAC ContractorSpecialized in Residential Oil Burner and Hydronics