變頻螺桿(gan)式冷水(shui)機(ji)(ji)運行前(qian)的檢查(cha)項目，電(dian)(dian)源及電(dian)(dian)控儀(yi)表系(xi)(xi)統(tong)(tong)的檢查(cha)。開機(ji)(ji)前(qian)檢查(cha)配電(dian)(dian)容(rong)量是(shi)(shi)(shi)否(fou)(fou)與機(ji)(ji)組(zu)功率(lv)一(yi)致(zhi)(zhi)，選(xuan)擇的電(dian)(dian)纜(lan)線(xian)徑是(shi)(shi)(shi)否(fou)(fou)能承受主(zhu)機(ji)(ji)的大工作(zuo)電(dian)(dian)流(liu)。檢查(cha)電(dian)(dian)氣系(xi)(xi)統(tong)(tong)是(shi)(shi)(shi)否(fou)(fou)與機(ji)(ji)組(zu)一(yi)致(zhi)(zhi)。機(ji)(ji)組(zu)電(dian)(dian)氣系(xi)(xi)統(tong)(tong)為三(san)相五線(xian)制（三(san)相線(xian)，一(yi)根零(ling)線(xian)，一(yi)根地(di)(di)線(xian)，380V±10%）。檢查(cha)壓縮(suo)(suo)機(ji)(ji)電(dian)(dian)源線(xian)是(shi)(shi)(shi)否(fou)(fou)連接(jie)良好。如果松動，請重新(xin)擰緊(jin)。壓縮(suo)(suo)機(ji)(ji)接(jie)線(xian)處使用(yong)的扭矩為500kg cm。由于主(zhu)機(ji)(ji)的長(chang)途(tu)運輸和吊裝(zhuang)，螺釘(ding)可能會(hui)松動。否(fou)(fou)則(ze)可能會(hui)損壞主(zhu)機(ji)(ji)控制柜(ju)和壓縮(suo)(suo)機(ji)(ji)內的電(dian)(dian)氣元件(jian)（如空氣開關、交(jiao)流(liu)接(jie)觸器(qi)等(deng)）。用(yong)萬(wan)用(yong)表仔細檢查(cha)所有(you)電(dian)(dian)路，看接(jie)線(xian)是(shi)(shi)(shi)否(fou)(fou)正(zheng)確(que)；用(yong)兆歐測(ce)量，確(que)保外(wai)殼沒有(you)短路；檢查(cha)接(jie)地(di)(di)線(xian)是(shi)(shi)(shi)否(fou)(fou)正(zheng)確(que)安裝(zhuang)，對地(di)(di)絕緣電(dian)(dian)阻是(shi)(shi)(shi)否(fou)(fou)大于2MΩ；檢查(cha)電(dian)(dian)源線(xian)是(shi)(shi)(shi)否(fou)(fou)滿足(zu)容(rong)量要求。檢查(cha)是(shi)(shi)(shi)否(fou)(fou)在設備(bei)的電(dian)(dian)源線(xian)上安裝(zhuang)了斷路器(qi)。

    控(kong)(kong)制(zhi)柜內主電(dian)(dian)路(lu)的(de)所(suo)有接(jie)線(xian)和控(kong)(kong)制(zhi)電(dian)(dian)路(lu)的(de)外(wai)部接(jie)線(xian)在通(tong)電(dian)(dian)前(qian)都應對照接(jie)線(xian)圖進行全(quan)面(mian)檢(jian)(jian)查(cha)(cha)（如(ru)曲軸(zhou)箱油加(jia)熱(re)器(qi)(qi)接(jie)線(xian)、壓(ya)縮機電(dian)(dian)子(zi)保護(hu)器(qi)(qi)、循(xun)環水(shui)溫度傳(chuan)感器(qi)(qi)、目標流量開(kai)(kai)(kai)關、水(shui)泵(beng)聯合(he)控(kong)(kong)制(zhi)等）；檢(jian)(jian)查(cha)(cha)端子(zi)螺(luo)栓是否(fou)緊固無松動。檢(jian)(jian)查(cha)(cha)電(dian)(dian)控(kong)(kong)儀(yi)表(biao)、電(dian)(dian)器(qi)(qi)是否(fou)安裝正確、完(wan)整(zheng)、有效，電(dian)(dian)控(kong)(kong)柜內外(wai)，特別是各點(dian)接(jie)線(xian)口是否(fou)清潔、無雜物。檢(jian)(jian)查(cha)(cha)以(yi)上(shang)各項后，當控(kong)(kong)制(zhi)柜通(tong)電(dian)(dian)時，電(dian)(dian)源指示(shi)燈亮(liang)。這時，油加(jia)熱(re)器(qi)(qi)開(kai)(kai)(kai)始工作。觀察相序保護(hu)器(qi)(qi)是否(fou)正常。如(ru)果相序保護(hu)器(qi)(qi)正常（綠燈亮(liang)），閉(bi)合(he)控(kong)(kong)制(zhi)柜內的(de)單*開(kai)(kai)(kai)關（QF2），控(kong)(kong)制(zhi)電(dian)(dian)路(lu)開(kai)(kai)(kai)始工作。觸摸屏（文字顯(xian)示(shi)）和PLC控(kong)(kong)制(zhi)器(qi)(qi)全(quan)部投(tou)入(ru)運(yun)行。