I did make a mistake before. VRF is a generic term for multi-connection, I'm not familiar with it. I'll write it down later. Because we basically talk about digital multi-connection and VRV separately, because their principles are completely different.
Aside from the digression, Yaoyang, you probably don't know much about the actual market of the mainframe. If we want to talk about the input of refrigeration capacity, air-cooled modular units are much more expensive than water-cooled units. Our 600-ton centrifuge costs at least 654.38+0.2 million yuan, the air-cooled single cooler with 105 ton costs 600,000 yuan, and the heat pump costs more than 600,000 yuan ~ of course, the price is for reference only. After all, I
As for multi-connection, there are hundreds of internal machines, and what is the price of dozens of external machines? Can't you get 3 million with so much total cooling capacity?
In addition, the temperature control error is 65438 0 degrees. Can it be called accurate ... I'm sweating ... What about humidity control? Do you need an extra ending? Give me a break.
The landlord can inquire about the prices of several units I just mentioned, and the total cooling capacity should be similar. Compare the energy consumption by the way. Although many manufacturers also steal the cooling capacity, after all, the results given by manufacturers in black and white are much more reliable than those given by salesmen. Isn't it ~
By the way, by the way, Yaoyang's friend, where did you get the data that the multi-connection efficiency exceeded 3.0 and the water cooling module efficiency exceeded 5.0? I've been dealing with Shanghai Energy Conservation Department for so long, and I've never heard of this thing.
The configuration of multi-connected external machines is insufficient, so we should be thankful that they can reach the nominal cooling capacity at full load. Even more than 1 energy efficiency ... Of course, it is still possible for the unbalanced load effect to exceed 3.0, but different test conditions have no comparative value at all. The energy efficiency standard I gave is based on the sample of Daikin VRV3. I don't know where your data came from. Even according to the test conditions of ARI working condition, the comprehensive efficiency of multi-line can not reach the level of water-cooled chiller. Otherwise, what kind of water-cooled chiller would Americans use? Americans use Trane, Carrier and York. What else? They all went to Hitachi's multi-line ~
By the way, the ARI condition in the United States is a standard to evaluate the effect of air conditioning under part load. Although Yaoyang is not so amateur, it is convenient for everyone to understand: ARI working condition is to take the operating conditions of the unit under 100%, 75%, 50% and 25% load, and calculate the difference according to the proportion of the actual operating time of the general air conditioner under these conditions. In which 100% load accounts for1%; 75% load accounts for 42%; 50% load accounts for 45%; 25% load accounts for 12%. China's current energy consumption test also uses this method.
In addition, it is a big joke that the air-cooled module can reach 5.0. Once again, before you mention energy efficiency, you'd better take a look at China's energy efficiency testing conditions and national energy efficiency level. You don't even know the difference between air-cooled units and water-cooled units. The standard conditions and variable conditions will be as ridiculous as Maxwell's claim that EER exceeds 17. You can brag, don't brag beyond the theoretical limit.
In addition, yaoyoung said that the energy regulation of water-cooled air conditioners is single, which is even more puzzling. You probably haven't done the design of a large unit, so you naturally don't know that the real technical design of the upstream series connection of the main engine, total heat recovery, ice/water cold storage and so on needs the water-cooled main engine to complete. In addition, the centrifugal unit can adjust the inlet guide vane angle, and the screw unit can adjust the compression stroke. These are much more mature control systems than frequency conversion multi-link systems. What's more, major air-conditioning manufacturers are now promoting the supporting group control system of refrigeration room, including changing primary pump flow, large temperature difference and so on.
Talking for a long time has little to do with the landlord's case, just have a look ~=w=