您可以省下三千五, coil漏就先換coil, 剩機會改用R422B, 或R438A, 跟R410A一樣環保, 又不用換機, 隻需換製冷劑(和一兩個小零件)
http://www.ebay.com/itm/R22-Refrigerant-DROP-IN-REPLACEMENT-DuPont-MO99-25-lb-Jug-/150865902419?pt=LH_DefaultDomain_0&vxp=mtr&hash=item23204efb53