機(ji)(ji)房是(shi)(shi)一(yi)個(ge)(ge)先(xian)進的空調(diao)(diao)高(gao)溫(wen)(wen)(wen)工業(ye)(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)機(ji)(ji)(5 ~ 30 °C)。這(zhe)種制(zhi)(zhi)冷(leng)(leng)(leng)機(ji)(ji)使用(yong)傳統(tong)的制(zhi)(zhi)冷(leng)(leng)(leng)劑，可(ke)以(yi)(yi)將溫(wen)(wen)(wen)度(du)(du)(du)保持在5至(zhi)(zhi)30攝(she)氏(shi)度(du)(du)(du)之間。冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)組是(shi)(shi)一(yi)種能提(ti)供(gong)(gong)恒溫(wen)(wen)(wen)、恒流(liu)、恒壓(ya)的冷(leng)(leng)(leng)卻(que)水(shui)(shui)(shui)設備。冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)的回水(shui)(shui)(shui)溫(wen)(wen)(wen)度(du)(du)(du)不應高(gao)于攝(she)氏(shi)40度(du)(du)(du)。回水(shui)(shui)(shui)溫(wen)(wen)(wen)度(du)(du)(du)越(yue)高(gao)，對壓(ya)縮(suo)機(ji)(ji)的損(sun)傷越(yue)大(da)。也就是(shi)(shi)說，在調(diao)(diao)整溫(wen)(wen)(wen)度(du)(du)(du)控(kong)制(zhi)(zhi)類別時，工業(ye)(ye)(ye)冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)組的低(di)(di)溫(wen)(wen)(wen)設定(ding)在5 °C，高(gao)溫(wen)(wen)(wen)設定(ding)在30 °C，這(zhe)是(shi)(shi)目前工業(ye)(ye)(ye)上(shang)廣(guang)泛采用(yong)的溫(wen)(wen)(wen)度(du)(du)(du)控(kong)制(zhi)(zhi)類別。然(ran)而，有(you)些要(yao)(yao)求(qiu)是(shi)(shi)在3 °C 下進行(xing)的，這(zhe)需要(yao)(yao)在制(zhi)(zhi)造業(ye)(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)機(ji)(ji)計劃(hua)中(zhong)(zhong)提(ti)出和(he)判斷。中(zhong)(zhong)溫(wen)(wen)(wen)工業(ye)(ye)(ye)冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)組(0 ~ 15 °C) ，水(shui)(shui)(shui)會(hui)凍結在0 °C，這(zhe)是(shi)(shi)老(lao)人和(he)小孩都(dou)知(zhi)道的一(yi)個(ge)(ge)普(pu)遍原理。那么，如(ru)果工業(ye)(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)機(ji)(ji)要(yao)(yao)求(qiu)提(ti)供(gong)(gong)低(di)(di)于零(ling)的低(di)(di)溫(wen)(wen)(wen)液(ye)體，這(zhe)可(ke)能嗎？答(da)案當然(ran)是(shi)(shi)一(yi)種判斷。中(zhong)(zhong)溫(wen)(wen)(wen)工業(ye)(ye)(ye)制(zhi)(zhi)冷(leng)(leng)(leng)機(ji)(ji)的溫(wen)(wen)(wen)度(du)(du)(du)可(ke)設定(ding)在攝(she)氏(shi)0度(du)(du)(du)至(zhi)(zhi)15度(du)(du)(du)，而制(zhi)(zhi)冷(leng)(leng)(leng)劑可(ke)以(yi)(yi)是(shi)(shi)氯(lv)化鈣(鹽水(shui)(shui)(shui))或乙二醇水(shui)(shui)(shui)溶(rong)液(ye)。低(di)(di)溫(wen)(wen)(wen)工業(ye)(ye)(ye)冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)組可(ke)提(ti)供(gong)(gong)攝(she)氏(shi)零(ling)下15度(du)(du)(du)至(zhi)(zhi)35度(du)(du)(du)以(yi)(yi)下的低(di)(di)溫(wen)(wen)(wen)工業(ye)(ye)(ye)冷(leng)(leng)(leng)水(shui)(shui)(shui)機(ji)(ji)組。

它們通(tong)常用(yong)于(yu)(yu)化學(xue)和(he)制藥工業(ye)(ye)，用(yong)于(yu)(yu)反應器材料的(de)(de)冷(leng)(leng)(leng)卻(que)或材料的(de)(de)冷(leng)(leng)(leng)凝和(he)回收。深低溫(wen)工業(ye)(ye)冷(leng)(leng)(leng)水(shui)機組是指機房復雜的(de)(de)空調系統能夠提(ti)供(gong) -35 °C 以下(xia)的(de)(de)低溫(wen)制冷(leng)(leng)(leng)劑的(de)(de)工業(ye)(ye)冷(leng)(leng)(leng)水(shui)機組，它采用(yong)二元或三元串聯制冷(leng)(leng)(leng)系統，故又稱為(wei)串聯工業(ye)(ye)冷(leng)(leng)(leng)水(shui)機組。由此可見，工業(ye)(ye)冷(leng)(leng)(leng)水(shui)機組的(de)(de)溫(wen)度控制范圍