i am a student of ME, i need to compare VRV system and split-type systems in a low-rise residential building, like house has 3 floors.

i cannot search many informations about the VRV systems. any suggestion to access those information about residential VRV?

And how to calculate the heat load of a house?

i haven't learn those things before, please give me some clue is ok....i would work on that

thanks