Low lifts will improve both efficiency and capacity, as long as the system is set up properly. Google the BTU specs from the manufacturers of various compressors at different temperatures. I recommend a thermostatic expansion valve, TXV, instead of the cap tube your donor unit probably uses. Cap tubes are great under a specific set of circumstances, but TXV's compensate for varying conditions and can be adjusted for optimal operation without tearing the system open. Fee-bay and Surplus City Liquidators are great sources for parts.
Welcome to the forum!
Craig
The MMT
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"I‘d put my money on the sun and solar energy. What a source of power! I hope we don‘t have to
wait until oil and coal run out before we tackle that." Thomas Edison, 1847 — 1931
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