Difference Between Vrv And Vrf

[vj.star4u]

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

[AcidSlasher]

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.

[Argus]

.

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.

.

[sinewave]

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


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


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

[AcidSlasher]

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

[claws]

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. ;)

[VRVIII]

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

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. :p

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