大連車載空調由(you)壓(ya)(ya)(ya)縮機(ji)、冷(leng)(leng)凝器(qi)(qi)(qi)、節(jie)流(liu)元件、蒸(zheng)發(fa)器(qi)(qi)(qi)、風機(ji)及必要的(de)(de)(de)控制(zhi)(zhi)部(bu)件構成，用于調(diao)節(jie)車(che)內(nei)(nei)(nei)(nei)溫(wen)(wen)(wen)(wen)(wen)度、濕度，給(gei)乘員提(ti)(ti)(ti)供舒(shu)適環(huan)(huan)(huan)(huan)境的(de)(de)(de)空(kong)(kong)(kong)調(diao)系統。當(dang)壓(ya)(ya)(ya)縮機(ji)工(gong)作時，壓(ya)(ya)(ya)縮機(ji)吸入(ru)從蒸(zheng)發(fa)器(qi)(qi)(qi)出(chu)來的(de)(de)(de)低(di)溫(wen)(wen)(wen)(wen)(wen)低(di)壓(ya)(ya)(ya)的(de)(de)(de)氣(qi)(qi)態制(zhi)(zhi)冷(leng)(leng)劑(ji)(ji)，經壓(ya)(ya)(ya)縮，制(zhi)(zhi)冷(leng)(leng)劑(ji)(ji)的(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度和壓(ya)(ya)(ya)力升高，并被送入(ru)冷(leng)(leng)凝器(qi)(qi)(qi)。在(zai)(zai)冷(leng)(leng)凝器(qi)(qi)(qi)內(nei)(nei)(nei)(nei)，高溫(wen)(wen)(wen)(wen)(wen)高壓(ya)(ya)(ya)的(de)(de)(de)氣(qi)(qi)態制(zhi)(zhi)冷(leng)(leng)劑(ji)(ji)把熱量(liang)傳遞給(gei)經過(guo)(guo)冷(leng)(leng)凝器(qi)(qi)(qi)的(de)(de)(de)車(che)外(wai)(wai)空(kong)(kong)(kong)氣(qi)(qi)而(er)液化，變(bian)成液體(ti)(ti)。液態制(zhi)(zhi)冷(leng)(leng)劑(ji)(ji)流(liu)經節(jie)流(liu)裝置時，溫(wen)(wen)(wen)(wen)(wen)度和壓(ya)(ya)(ya)力降(jiang)低(di)，并進(jin)入(ru)蒸(zheng)發(fa)器(qi)(qi)(qi)。在(zai)(zai)蒸(zheng)發(fa)器(qi)(qi)(qi)內(nei)(nei)(nei)(nei)，低(di)溫(wen)(wen)(wen)(wen)(wen)低(di)壓(ya)(ya)(ya)的(de)(de)(de)液態制(zhi)(zhi)冷(leng)(leng)劑(ji)(ji)吸收經過(guo)(guo)蒸(zheng)發(fa)器(qi)(qi)(qi)的(de)(de)(de)車(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)氣(qi)(qi)的(de)(de)(de)熱量(liang)而(er)蒸(zheng)發(fa)，變(bian)成氣(qi)(qi)體(ti)(ti)。氣(qi)(qi)體(ti)(ti)又被壓(ya)(ya)(ya)縮機(ji)吸入(ru)進(jin)行下一輪循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)。這樣(yang)，通(tong)過(guo)(guo)制(zhi)(zhi)冷(leng)(leng)劑(ji)(ji)在(zai)(zai)系統內(nei)(nei)(nei)(nei)的(de)(de)(de)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)，不斷吸收車(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)氣(qi)(qi)的(de)(de)(de)熱量(liang)并排到車(che)外(wai)(wai)空(kong)(kong)(kong)氣(qi)(qi)中，使(shi)(shi)車(che)內(nei)(nei)(nei)(nei)空(kong)(kong)(kong)氣(qi)(qi)的(de)(de)(de)溫(wen)(wen)(wen)(wen)(wen)度逐漸下降(jiang)。內(nei)(nei)(nei)(nei)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)可(ke)(ke)以(yi)提(ti)(ti)(ti)高空(kong)(kong)(kong)調(diao)效(xiao)(xiao)果，相當(dang)于把室內(nei)(nei)(nei)(nei)冷(leng)(leng)空(kong)(kong)(kong)氣(qi)(qi)再制(zhi)(zhi)冷(leng)(leng)，空(kong)(kong)(kong)調(diao)效(xiao)(xiao)果當(dang)然更(geng)好了。不過(guo)(guo)長時間使(shi)(shi)用內(nei)(nei)(nei)(nei)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)會使(shi)(shi)車(che)內(nei)(nei)(nei)(nei)的(de)(de)(de)空(kong)(kong)(kong)氣(qi)(qi)質(zhi)(zhi)量(liang)降(jiang)低(di)，可(ke)(ke)能(neng)讓(rang)人感(gan)覺頭(tou)昏腦(nao)漲。應當(dang)開(kai)一會兒(er)內(nei)(nei)(nei)(nei)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)就(jiu)使(shi)(shi)用幾分鐘(zhong)外(wai)(wai)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)，讓(rang)新鮮空(kong)(kong)(kong)氣(qi)(qi)進(jin)入(ru)車(che)內(nei)(nei)(nei)(nei)，改善(shan)空(kong)(kong)(kong)氣(qi)(qi)質(zhi)(zhi)量(liang)。如果空(kong)(kong)(kong)調(diao)內(nei)(nei)(nei)(nei)外(wai)(wai)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)開(kai)關(guan)是機(ji)械式的(de)(de)(de)撥桿而(er)非按鈕(niu)，可(ke)(ke)以(yi)把撥桿放在(zai)(zai)內(nei)(nei)(nei)(nei)外(wai)(wai)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)的(de)(de)(de)中間，讓(rang)車(che)外(wai)(wai)空(kong)(kong)(kong)氣(qi)(qi)適量(liang)進(jin)入(ru)，既(ji)能(neng)提(ti)(ti)(ti)升空(kong)(kong)(kong)氣(qi)(qi)質(zhi)(zhi)量(liang)，又能(neng)提(ti)(ti)(ti)高空(kong)(kong)(kong)調(diao)效(xiao)(xiao)果。此外(wai)(wai)，在(zai)(zai)使(shi)(shi)用空(kong)(kong)(kong)調(diao)除霜除霧時，要使(shi)(shi)用外(wai)(wai)循(xun)(xun)(xun)環(huan)(huan)(huan)(huan)才(cai)有效(xiao)(xiao)。