機(ji)(ji)(ji)房是(shi)一個(ge)先進(jin)的(de)空調(diao)高(gao)溫(wen)(wen)(wen)工(gong)(gong)業(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)(5 ~ 30 °C)。這(zhe)種制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)使用傳統的(de)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)劑，可(ke)(ke)(ke)(ke)以將溫(wen)(wen)(wen)度(du)(du)(du)(du)保持在(zai)(zai)5至30攝氏度(du)(du)(du)(du)之間。冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)組(zu)是(shi)一種能提供(gong)(gong)恒溫(wen)(wen)(wen)、恒流、恒壓的(de)冷(leng)(leng)(leng)(leng)(leng)卻水(shui)(shui)(shui)(shui)設(she)(she)備。冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)的(de)回水(shui)(shui)(shui)(shui)溫(wen)(wen)(wen)度(du)(du)(du)(du)不應高(gao)于(yu)攝氏40度(du)(du)(du)(du)。回水(shui)(shui)(shui)(shui)溫(wen)(wen)(wen)度(du)(du)(du)(du)越高(gao)，對壓縮機(ji)(ji)(ji)的(de)損傷越大(da)。也就是(shi)說(shuo)，在(zai)(zai)調(diao)整溫(wen)(wen)(wen)度(du)(du)(du)(du)控制(zhi)(zhi)類別時，工(gong)(gong)業(ye)(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)組(zu)的(de)低(di)(di)溫(wen)(wen)(wen)設(she)(she)定在(zai)(zai)5 °C，高(gao)溫(wen)(wen)(wen)設(she)(she)定在(zai)(zai)30 °C，這(zhe)是(shi)目前工(gong)(gong)業(ye)(ye)上廣泛采用的(de)溫(wen)(wen)(wen)度(du)(du)(du)(du)控制(zhi)(zhi)類別。然而，有些要(yao)求是(shi)在(zai)(zai)3 °C 下進(jin)行的(de)，這(zhe)需要(yao)在(zai)(zai)制(zhi)(zhi)造業(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)計(ji)劃中提出(chu)和判(pan)斷。中溫(wen)(wen)(wen)工(gong)(gong)業(ye)(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)組(zu)(0 ~ 15 °C) ，水(shui)(shui)(shui)(shui)會(hui)凍結(jie)在(zai)(zai)0 °C，這(zhe)是(shi)老(lao)人(ren)和小孩都(dou)知道的(de)一個(ge)普遍原(yuan)理。那(nei)么，如(ru)果工(gong)(gong)業(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)要(yao)求提供(gong)(gong)低(di)(di)于(yu)零(ling)的(de)低(di)(di)溫(wen)(wen)(wen)液體，這(zhe)可(ke)(ke)(ke)(ke)能嗎？答案當然是(shi)一種判(pan)斷。中溫(wen)(wen)(wen)工(gong)(gong)業(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)機(ji)(ji)(ji)的(de)溫(wen)(wen)(wen)度(du)(du)(du)(du)可(ke)(ke)(ke)(ke)設(she)(she)定在(zai)(zai)攝氏0度(du)(du)(du)(du)至15度(du)(du)(du)(du)，而制(zhi)(zhi)冷(leng)(leng)(leng)(leng)(leng)劑可(ke)(ke)(ke)(ke)以是(shi)氯(lv)化鈣(鹽水(shui)(shui)(shui)(shui))或乙二(er)醇(chun)水(shui)(shui)(shui)(shui)溶液。低(di)(di)溫(wen)(wen)(wen)工(gong)(gong)業(ye)(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)組(zu)可(ke)(ke)(ke)(ke)提供(gong)(gong)攝氏零(ling)下15度(du)(du)(du)(du)至35度(du)(du)(du)(du)以下的(de)低(di)(di)溫(wen)(wen)(wen)工(gong)(gong)業(ye)(ye)冷(leng)(leng)(leng)(leng)(leng)水(shui)(shui)(shui)(shui)機(ji)(ji)(ji)組(zu)。

它們通(tong)常用(yong)于化學和制藥工(gong)業(ye)，用(yong)于反應(ying)器材料的冷(leng)(leng)卻(que)或材料的冷(leng)(leng)凝和回收。深(shen)低(di)溫工(gong)業(ye)冷(leng)(leng)水機組是指機房復雜的空調(diao)系統能夠提供 -35 °C 以下的低(di)溫制冷(leng)(leng)劑的工(gong)業(ye)冷(leng)(leng)水機組，它采(cai)用(yong)二元(yuan)或三元(yuan)串聯制冷(leng)(leng)系統，故又稱為串聯工(gong)業(ye)冷(leng)(leng)水機組。由此可(ke)見(jian)，工(gong)業(ye)冷(leng)(leng)水機組的溫度(du)控制范圍