耗電(dian)量(liang)則是要主要看壓縮機(ji)的(de)功(gong)率：

壓(ya)縮(suo)機功(gong)(gong)(gong)(gong)率=制冷量/能(neng)(neng)耗比，一般空調(diao)能(neng)(neng)耗比大于3，因此1匹的(de)電(dian)(dian)功(gong)(gong)(gong)(gong)率一般數據735W，1.5匹的(de)耗電(dian)(dian)功(gong)(gong)(gong)(gong)率就(jiu)是(shi)735*1.5約為1100瓦，也(ye)(ye)就(jiu)是(shi)1小時(shi)1.1度電(dian)(dian)左(zuo)右，直流變頻空調(diao)，除了(le)壓(ya)縮(suo)機，還有(you)風扇或其(qi)他電(dian)(dian)機需要(yao)耗電(dian)(dian)，總(zong)共1小時(shi)也(ye)(ye)就(jiu)1.2度左(zuo)右。的(de)方法，看看說明書上(shang)的(de)輸(shu)入功(gong)(gong)(gong)(gong)率是(shi)多(duo)少千瓦，就(jiu)是(shi)1小時(shi)的(de)耗電(dian)(dian)量。

直(zhi)流(liu)變(bian)(bian)(bian)頻(pin)壓(ya)(ya)縮機效率比交流(liu)變(bian)(bian)(bian)頻(pin)壓(ya)(ya)縮機高(gao)(gao)10%-30%，美的直(zhi)流(liu)變(bian)(bian)(bian)頻(pin)空調，噪(zao)音低5-10分貝，相(xiang)對成本也(ye)略高(gao)(gao)。120度和180度是(shi)兩種(zhong)不同的直(zhi)流(liu)變(bian)(bian)(bian)頻(pin)技術。120度就是(shi)在(zai)任(ren)意時刻三相(xiang)中只有兩相(xiang)導通，一相(xiang)截止。算法簡單易行(xing)，但(dan)在(zai)轉矩和轉速變(bian)(bian)(bian)化大(da)的時候(hou)，效率很低，逐漸被180度方案所(suo)取代。

它的能源損(sun)耗比調(diao)頻(pin)調(diao)速要小。另(ling)外(wai)，由(you)于這種(zhong)直流(liu)電(dian)(dian)機(ji)(ji)的轉子是永磁的，又省卻了三相(xiang)交(jiao)流(liu)異步電(dian)(dian)機(ji)(ji)的轉子電(dian)(dian)流(liu)消耗。所以，它從電(dian)(dian)網電(dian)(dian)源到電(dian)(dian)動(dong)機(ji)(ji)這一段(duan)的功率(lv)因數要比調(diao)頻(pin)調(diao)速方(fang)式高，節省了一定的能量。

所謂的(de)(de)“變(bian)(bian)(bian)頻空(kong)(kong)調(diao)(diao)(diao)”是與傳統的(de)(de)“定頻空(kong)(kong)調(diao)(diao)(diao)”相比較而(er)產生(sheng)的(de)(de)概念。眾(zhong)所周知(zhi)，我國的(de)(de)電(dian)(dian)網電(dian)(dian)壓(ya)(ya)為220伏、50赫茲，在(zai)這種條件下工作的(de)(de)空(kong)(kong)調(diao)(diao)(diao)稱之為“定頻空(kong)(kong)調(diao)(diao)(diao)”。由于供電(dian)(dian)頻率(lv)(lv)不能(neng)改(gai)變(bian)(bian)(bian)，傳統的(de)(de)定頻空(kong)(kong)調(diao)(diao)(diao)的(de)(de)壓(ya)(ya)縮(suo)(suo)機轉速(su)基本不變(bian)(bian)(bian)，依靠其不斷(duan)地“開(kai)、停”壓(ya)(ya)縮(suo)(suo)機來調(diao)(diao)(diao)整(zheng)室(shi)內溫(wen)(wen)度(du)(du)，其一開(kai)一停之間容易(yi)造成室(shi)溫(wen)(wen)忽冷忽熱，直流變(bian)(bian)(bian)頻空(kong)(kong)調(diao)(diao)(diao)哪家(jia)好，并消耗(hao)較多電(dian)(dian)能(neng)。而(er)與之相比，“變(bian)(bian)(bian)頻空(kong)(kong)調(diao)(diao)(diao)”變(bian)(bian)(bian)頻器改(gai)變(bian)(bian)(bian)壓(ya)(ya)縮(suo)(suo)機供電(dian)(dian)頻率(lv)(lv)，調(diao)(diao)(diao)節壓(ya)(ya)縮(suo)(suo)機轉速(su)。依靠壓(ya)(ya)縮(suo)(suo)機轉速(su)的(de)(de)快慢達到控(kong)制室(shi)溫(wen)(wen)的(de)(de)目的(de)(de)，室(shi)溫(wen)(wen)波動小、電(dian)(dian)能(neng)消耗(hao)少，美的(de)(de)直流變(bian)(bian)(bian)頻空(kong)(kong)調(diao)(diao)(diao)好嗎，其舒適度(du)(du)大(da)大(da)提高。而(er)運用變(bian)(bian)(bian)頻控(kong)制技術的(de)(de)變(bian)(bian)(bian)頻空(kong)(kong)調(diao)(diao)(diao)，可根據環境(jing)溫(wen)(wen)度(du)(du)自動選擇制熱、制冷和除濕運轉方式，使(shi)居室(shi)在(zai)短時間內迅速(su)達到所需要的(de)(de)溫(wen)(wen)度(du)(du)并在(zai)低(di)轉速(su)、低(di)能(neng)耗(hao)狀態下以較小的(de)(de)溫(wen)(wen)差波動，實(shi)現了快速(su)、節能(neng)和舒適控(kong)溫(wen)(wen)效(xiao)果(guo)。