暖空笔记(11:ductless/window)

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Ductless: https://www.youtube.com/watch?v=DzVJiSQNbew 需2.5-3"孔钻出线,240V外墙开关,flare工具,由粗管维修口抽空侧漏,然后打开高低压阀。高压可能无维修口。https://www.youtube.com/watch?v=JQkth-AM5CE 

最好的窗式空调:美的U型仅42db,带安装架等附件,适合上开式Single Hung窗户并允许窗户大体上全开:https://www.amazon.com/Midea-Inverter-Conditioner-Flexibility-Installation/dp/B0866Y33PL/ref=sr_1_18?th=1? 10KBTU价格最低$330,12KBTU涨了 $30。安装:https://www.youtube.com/watch?v=hux4BEKiu6k 开口22-36x13.75" 因此split/ductless似乎没啥吸引力了。如果是侧拉窗户,建议靠边安装,上空处用隔热泡沫用半开的窗扇夹住,窗开19.17";此时安装U架固定螺丝不是半寸两端而是1寸往下。 Walmart可购买3-4年保险,客服:ex_megan.k@partner.midea.com

类似的是Bestbuy旗下Insignia,尺寸19.2x13.5x22,用R32-可燃:https://www.bestbuy.com/site/insignia-350-sq-ft-8000-btu-u-shaped-window-air-conditioner-white/6480317.p?skuId=6480317

如果是侧开Casement窗户,只好把窗扇卸掉,另DIY矮点的窗扇。窗式空调要往外斜下3度以便排水。例如窗扇20.75x52.75,就可以用上述U型空调。

窗式空调修理:https://www.youtube.com/watch?v=vsozg8W2tes https://www.youtube.com/watch?v=meDROx7pAyM 

窗式空调改回收机:去除冷凝器evaporator,其高低压管分别接冷媒罐和输入,两者均为R410a接头,输入再加可换滤器。输入端需欠压开关在2~5psi时切断电源。

窗式空调改split:https://www.youtube.com/watch?v=7ZwmfkKIO8o 

上述Midea空调不带制热。

Mr Cool国产名牌:https://pdf.lowes.com/productdocuments/ee4eb5f2-4282-4b22-99c3-ec26fb0873a1/65949004.pdf 3-4ton均可用8/2线,管道是预充冷媒的,加长时要加接头适配器,长度不超过73.8',总长限为221.5'。水泥垫可为36x20",左后各留12"右边24"。

https://hvacdirect.com/3-5-ton-14-3-seer2-80-afue-110-000-btu-aciq-central-ac-furnace-inverter-system-extreme-heat-id-147358.html 

https://hvacdirect.com/3-5-ton-15-5-seer-airquest-heat-pump-system-id23729.html 

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