變頻螺桿式冷(leng)水機(ji)(ji)運行前的檢(jian)查(cha)項目，電(dian)(dian)(dian)(dian)源(yuan)及(ji)電(dian)(dian)(dian)(dian)控(kong)儀表系(xi)統的檢(jian)查(cha)。開(kai)機(ji)(ji)前檢(jian)查(cha)配電(dian)(dian)(dian)(dian)容(rong)量是否(fou)(fou)與機(ji)(ji)組(zu)功率一(yi)致，選擇的電(dian)(dian)(dian)(dian)纜(lan)線(xian)徑是否(fou)(fou)能(neng)承受(shou)主(zhu)機(ji)(ji)的大工作(zuo)電(dian)(dian)(dian)(dian)流。檢(jian)查(cha)電(dian)(dian)(dian)(dian)氣(qi)系(xi)統是否(fou)(fou)與機(ji)(ji)組(zu)一(yi)致。機(ji)(ji)組(zu)電(dian)(dian)(dian)(dian)氣(qi)系(xi)統為三相(xiang)五線(xian)制（三相(xiang)線(xian)，一(yi)根(gen)零線(xian)，一(yi)根(gen)地(di)線(xian)，380V±10%）。檢(jian)查(cha)壓(ya)縮(suo)機(ji)(ji)電(dian)(dian)(dian)(dian)源(yuan)線(xian)是否(fou)(fou)連接良好。如果松(song)動(dong)，請重(zhong)新擰緊。壓(ya)縮(suo)機(ji)(ji)接線(xian)處使(shi)用(yong)(yong)的扭矩(ju)為500kg cm。由于主(zhu)機(ji)(ji)的長途運輸和(he)吊裝，螺釘可能(neng)會松(song)動(dong)。否(fou)(fou)則可能(neng)會損壞主(zhu)機(ji)(ji)控(kong)制柜和(he)壓(ya)縮(suo)機(ji)(ji)內的電(dian)(dian)(dian)(dian)氣(qi)元件(jian)（如空氣(qi)開(kai)關、交(jiao)流接觸器等(deng)）。用(yong)(yong)萬(wan)用(yong)(yong)表仔細檢(jian)查(cha)所(suo)有電(dian)(dian)(dian)(dian)路(lu)(lu)，看接線(xian)是否(fou)(fou)正確(que)；用(yong)(yong)兆歐測量，確(que)保(bao)外殼沒有短(duan)路(lu)(lu)；檢(jian)查(cha)接地(di)線(xian)是否(fou)(fou)正確(que)安裝，對地(di)絕緣電(dian)(dian)(dian)(dian)阻(zu)是否(fou)(fou)大于2MΩ；檢(jian)查(cha)電(dian)(dian)(dian)(dian)源(yuan)線(xian)是否(fou)(fou)滿足容(rong)量要求。檢(jian)查(cha)是否(fou)(fou)在設備(bei)的電(dian)(dian)(dian)(dian)源(yuan)線(xian)上安裝了斷(duan)路(lu)(lu)器。

    控(kong)(kong)制(zhi)柜內(nei)主電(dian)(dian)(dian)路(lu)的(de)所有接(jie)線(xian)和控(kong)(kong)制(zhi)電(dian)(dian)(dian)路(lu)的(de)外部接(jie)線(xian)在通電(dian)(dian)(dian)前(qian)都應對照(zhao)接(jie)線(xian)圖進行全面檢(jian)查(cha)(cha)（如曲(qu)軸箱(xiang)油加(jia)熱器(qi)接(jie)線(xian)、壓縮機(ji)電(dian)(dian)(dian)子(zi)保護器(qi)、循環水溫度傳感器(qi)、目標流(liu)量開(kai)關、水泵(beng)聯合控(kong)(kong)制(zhi)等）；檢(jian)查(cha)(cha)端子(zi)螺栓是(shi)否緊固無松動。檢(jian)查(cha)(cha)電(dian)(dian)(dian)控(kong)(kong)儀表、電(dian)(dian)(dian)器(qi)是(shi)否安裝(zhuang)正(zheng)確、完整、有效，電(dian)(dian)(dian)控(kong)(kong)柜內(nei)外，特別是(shi)各點接(jie)線(xian)口是(shi)否清潔(jie)、無雜物(wu)。檢(jian)查(cha)(cha)以上各項后，當控(kong)(kong)制(zhi)柜通電(dian)(dian)(dian)時，電(dian)(dian)(dian)源指示(shi)燈(deng)亮。這時，油加(jia)熱器(qi)開(kai)始(shi)工作。觀察(cha)相(xiang)(xiang)序保護器(qi)是(shi)否正(zheng)常。如果(guo)相(xiang)(xiang)序保護器(qi)正(zheng)常（綠燈(deng)亮），閉(bi)合控(kong)(kong)制(zhi)柜內(nei)的(de)單(dan)*開(kai)關（QF2），控(kong)(kong)制(zhi)電(dian)(dian)(dian)路(lu)開(kai)始(shi)工作。觸摸(mo)屏（文字(zi)顯(xian)示(shi)）和PLC控(kong)(kong)制(zhi)器(qi)全部投(tou)入運行。