Ask the HVAC tech. I believe the used refrigerant (R-410A?)
can be re-used. The tech can recover the refrigerant from the system, add back the accumulator (critical for high pressure system), pressure test the system for leak detection, then evacuate -pressure hold, add back the used refrigerant, test the system for normal operation (high and low pressures, subcooling temp per spec). This may take several hours. The old accumulator may be irreparable (the HVAC tech can tell you) and thus a new accumulator is needed for replacement.
请教一下空调问题,昨天我一个出租房的空调坏了,结果查出来是在Accumulator 上面接铜管子的地方漏Freon, 请了一个人去看,他建议bypass Accumulator,说不影响工作,因为天气太热,我当时为了尽快修好,同意他的建议,所以他把accumulator拆掉了。
后来查了Google, 发现这个Accumulator 还是蛮重要的,尤其对Heat pump.
现在怎么办?怎么跟他交涉? 我还没有付钱。估计等一下他的账单就来了
你得根据自己机器的情况。你这个是普通空调还是heat pump?
不给钱可能会吵架。
为小事吵架还不如给钱。
工作就行,等下次再坏了再换新的。
它不是每样东西都非有不可。设计是设计,应用是应用。摆弄过机器的都知道,那机器老了,能搭根线多凑合几年,你会因为设计二不干?呵呵。
当时的情况,大多是要是换accumulator,需要等零件,当时修不了。他看你急,所以建议bypass accumulator。你不要怪人家建议一个坏主意。
现在紧急的事情解决了,让他去买一个accumulator,装回去一起算钱就好了。不过可能要算加两次freeon的钱,和他讨价还价一下吧。
Does it depends heat pump or straight cool?
over $1000.
$80 per lb, 15 lb in my AC
一时半会儿不会有问题。秋天不用它的时候再找人换回来就是啦。
We need to vaccuum again when adding the accumulator back, I'm not sure if we can reuse the Freon.
and don't need to change the Freon again
多快好省,四者可以取三,全部占上很难
can be re-used. The tech can recover the refrigerant from the system, add back the accumulator (critical for high pressure system), pressure test the system for leak detection, then evacuate -pressure hold, add back the used refrigerant, test the system for normal operation (high and low pressures, subcooling temp per spec). This may take several hours. The old accumulator may be irreparable (the HVAC tech can tell you) and thus a new accumulator is needed for replacement.
pressure heat pump?
机器里的冷媒需求量是根据工作负载,也就是天气而定,天比较凉快,冷媒就不会全部蒸发,为防止液体冷媒回到压缩机而损坏压缩机,就必须把液体冷媒暂时储存在那,bypass不是好主意。
既然找到泄漏点,为何不修好?既然有泄漏,难道不应该加冷媒?当然加冷媒不是简单往里加,有一定的工序。
供参考,等天凉快了再修,目前就是要机器工作。机器如果真坏了,维修工人的活就来了。坏的越多,人越高兴。
then evacuate -pressure hold, add back the used refrigerant,
why Pressure Hold? after evacuate.
Thank you.