homemade mini split
I just had an idea. This could be very easy to accomplish.
A couple of small units could be connected to each other with a lineset so that the compressor in one unit would operate in heating mode and the compressor in the other would operate in cooling mode. For this setup to work, all that would really be necessary would be some check valves. What do you think? |
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A general purpose heat pump controller would tie it all together with a bow. -AC |
Since the parts list is so low the idea certainly has merit from that stand point.
I am curious if it is possible to plumb two compressors in series for a boost in the heating Btu ? If it was possible I 'think' it would be a better use of the compressor as any window ac will keep you cool but not many keep you warm. In short I think AC is readily available were as heat pumps are some what scarce. |
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To get into "frost territory", a method must be used to allow the unit to operate in heating and cooling modes. Hot gas defrost is merely "air conditioning" with the outdoor fan not running. To get more raw BTU's through a system, it is better to plumb two compressors in parallel with each other. The series method requires a "booster" compressor that is rated at a lower compression ratio and higher displacement than the "primary" compressor. usually, some sort of economizer or intercooler is used between the two compressors to desuperheat the intermediate pressure gas before it is run through the second compressor. This is where certain manufacturers have somewhat warped the law of physics, making all manner of grandiose claims about their systems. |
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