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  1. #1
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    Difference Between Vrv And Vrf


    Dear all

    If any one has detailed information between the difference between VRV and VRF,please send that to me .Please send that to my email id [EMAIL= E mail address removed by the moderator. [/EMAIL].
    its urgent.

    Vijay anand
    Last edited by Argus; 19-02-2008 at 03:29 PM. Reason: correction



  2. #2
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    Re: Difference Between Vrv And Vrf

    They are essentially the same thing, EXCEPT the term VRV is copyrighted by daikin. for example a system by daikin may be called a VRV, but a similar system made by fujitsu is a VRF.

    VRV = Variable Refrigerant Volume, VRF = Variable Refrigerant Flow.

  3. #3
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    Re: Difference Between Vrv And Vrf

    .

    It's as Acidslasher remarked.

    They are two interchangeable terms for the same machine. It means the same.

    Following Daikin's registration of 'VRV' as a 'trade name', VRF has become the accepted generic term for these machines.

    .

  4. #4
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    Re: Difference Between Vrv And Vrf

    VRF as used by Mitsi and others is the more acurate term.


    VRF - Variable Refrigerant Flow is essentialy what goes on inside the system.


    VRV - Variable Refrigerant Volume does not really happen so therefore Daikin can keep their Guarded terminology!

  5. #5
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    Re: Difference Between Vrv And Vrf

    yeah the actual volume of refrigerant doesnt change, so i dont know why its called variable. Flow is much more accurate.

  6. #6
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    Re: Difference Between Vrv And Vrf

    Quote Originally Posted by AcidSlasher View Post
    yeah the actual volume of refrigerant doesnt change, so i dont know why its called variable.
    Refrigerants, when they exist in gaseous state, they are compressible and so their volume can be varied.

  7. #7
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    Re: Difference Between Vrv And Vrf

    Quote Originally Posted by sinewave View Post
    VRV - Variable Refrigerant Volume does not really happen so therefore Daikin can keep their Guarded terminology!
    I think you will find Daikin invented and patented the first VRV system. Other manufactures then followed by designing there own VRF system, most of which were copies.

    Personally I think the latest VRV heat recovery is far superior to the present VRF systems:
    Higher COP
    Continuous heating during defrost
    No capacity loss during indoor mode change
    Heating mode high capacity start up (providing rapid heat up of indoor coils)

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