陜西中央空調--變頻多聯機系統(tong)(tong)(tong)是(shi)“變(bian)頻一拖多可變(bian)冷(leng)媒流(liu)量中央(yang)空(kong)調(diao)系統(tong)(tong)(tong)”的簡稱(cheng)，是(shi)由一臺室外機和若干臺室內機組成的一個冷(leng)媒循環(huan)系統(tong)(tong)(tong)。是(shi)變(bian)制(zhi)冷(leng)劑流(liu)量（variedrefrigerant Volume）空(kong)調(diao)系統(tong)(tong)(tong)的一種形式(shi)，是(shi)一種制(zhi)冷(leng)劑式(shi)空(kong)調(diao)系統(tong)(tong)(tong)，它以制(zhi)冷(leng)劑為輸(shu)送介(jie)質，屬空(kong)氣—空(kong)氣熱泵系統(tong)(tong)(tong)。

該系統(tong)由(you)制(zhi)(zhi)冷劑管(guan)路連接(jie)的(de)室(shi)(shi)外機(ji)(ji)和室(shi)(shi)內(nei)(nei)機(ji)(ji)組(zu)成，室(shi)(shi)外機(ji)(ji)由(you)室(shi)(shi)外側換熱器(qi)、壓縮機(ji)(ji)和其(qi)它制(zhi)(zhi)冷附件組(zu)成；室(shi)(shi)內(nei)(nei)機(ji)(ji)由(you)風機(ji)(ji)和直(zhi)接(jie)蒸發器(qi)等組(zu)成。一(yi)臺(tai)室(shi)(shi)外機(ji)(ji)通過管(guan)路能夠向若(ruo)干個室(shi)(shi)內(nei)(nei)機(ji)(ji)輸送制(zhi)(zhi)冷劑液體(ti)，通過控制(zhi)(zhi)壓縮機(ji)(ji)的(de)制(zhi)(zhi)冷劑循環量(liang)和進入室(shi)(shi)內(nei)(nei)各個換熱器(qi)的(de)制(zhi)(zhi)冷劑流量(liang)，可以適時(shi)地滿足室(shi)(shi)內(nei)(nei)冷熱負(fu)荷要(yao)求(qiu)。