安裝空調可能對于不了解的人來說，是十分簡單的事情，但是對于行家來說，每一步都必須仔細，不然就會耽誤用戶的使用。尤其是中央空調，在安裝的時候，更是不能馬虎大意。山東格力今天(tian)來說說充(chong)氮保壓(ya)的安裝事項。

中央空調

這是焊接完(wan)成后(hou)必(bi)須(xu)對銅管(guan)進(jin)行的壓(ya)(ya)(ya)(ya)力測(ce)試，往銅管(guan)內充入一(yi)(yi)定壓(ya)(ya)(ya)(ya)力的氮氣進(jin)行保(bao)壓(ya)(ya)(ya)(ya)，一(yi)(yi)般壓(ya)(ya)(ya)(ya)力測(ce)試時(shi)(shi)間為(wei)24小時(shi)(shi)，南京勝出環境工(gong)程(cheng)公司規(gui)定壓(ya)(ya)(ya)(ya)力測(ce)試時(shi)(shi)間至少(shao)48小時(shi)(shi)，一(yi)(yi)般一(yi)(yi)個(ge)星期；確保(bao)銅管(guan)絲毫不泄露。

需(xu)要特別(bie)說明：使(shi)用R410冷媒，需(xu)保持(chi)管內(nei)壓(ya)力為40公斤(jin)，R22冷媒則需(xu)要保持(chi)管內(nei)壓(ya)力為20公斤(jin)。

氮(dan)氣是惰性氣體，膨脹系(xi)數小，幾乎不存在由(you)于熱(re)脹冷縮而產生的壓力變(bian)化(hua)。如果測(ce)試過程中(zhong)壓力表有下降，則(ze)應該(gai)檢查冷媒管焊接是否有問題。

空(kong)調(diao)(diao)銅(tong)(tong)管(guan)(guan)是空(kong)調(diao)(diao)冷氣、暖氣輸送的(de)(de)媒介，相當于(yu)人(ren)的(de)(de)血脈連接(jie)。氟系(xi)(xi)統(tong)(tong)家用(yong)(yong)中央空(kong)調(diao)(diao)銅(tong)(tong)管(guan)(guan)分(fen)為(wei)普(pu)通銅(tong)(tong)管(guan)(guan)和R410a銅(tong)(tong)管(guan)(guan)。傳統(tong)(tong)R22制冷劑空(kong)調(diao)(diao)上使(shi)用(yong)(yong)的(de)(de)銅(tong)(tong)管(guan)(guan)為(wei)普(pu)通銅(tong)(tong)管(guan)(guan)，R410a制冷劑空(kong)調(diao)(diao)商使(shi)用(yong)(yong)的(de)(de)銅(tong)(tong)管(guan)(guan)為(wei)R410a銅(tong)(tong)管(guan)(guan)。目(mu)前(qian)氟系(xi)(xi)統(tong)(tong)變頻多(duo)聯式家用(yong)(yong)中央空(kong)調(diao)(diao)主機多(duo)采用(yong)(yong)R410a冷媒，因此在氟系(xi)(xi)統(tong)(tong)多(duo)聯機應用(yong)(yong)上，R410a銅(tong)(tong)管(guan)(guan)最多(duo)。

由于R410a制(zhi)冷劑(ji)產生的壓力(li)是R22制(zhi)冷劑(ji)的1.6倍，這就要求它的銅(tong)管(guan)密度(du)大、抗壓能力(li)強、銅(tong)管(guan)潔凈度(du)高而且銅(tong)管(guan)壁(bi)厚均勻， 所以(yi)R410a制(zhi)冷劑(ji)的空(kong)調(diao)系統必須使用(yong)專門的R410a銅(tong)管(guan)。

在系統(tong)安(an)(an)裝上，我們(men)可以(yi)將用(yong)R410a銅(tong)(tong)管(guan)來代替普(pu)通(tong)R22銅(tong)(tong)管(guan)，但萬(wan)萬(wan)不能用(yong)普(pu)通(tong)R22銅(tong)(tong)管(guan)去代替R410a銅(tong)(tong)管(guan)。不少消(xiao)費(fei)者(zhe)很看重整(zheng)體工程價格(ge)，越(yue)低越(yue)好，忽視了安(an)(an)裝材料和安(an)(an)裝工藝的(de)重要(yao)性，這(zhe)往往會導致一些工程公司(si)為了急于拿(na)單，不顧及后期客(ke)戶(hu)使(shi)用(yong)工程質量問題(ti)，暗中將材料更(geng)換以(yi)節省成(cheng)本滿足(zu)客(ke)戶(hu)的(de)價格(ge)要(yao)求(qiu)，這(zhe)樣最終的(de)受害者(zhe)還是消(xiao)費(fei)者(zhe)自己。