I read this original thread some some ago and decided to give it a try.
http://www.refrigeration-engineer.co...ystem-Possible
Only performed the split idea and not the heat pump.
Having a bit of trouble on the pressures though. Getting high suction and low liquid readings. Given enough running time the pressures will all but balance out. Thinking that the lack of a metering device has caused this. I thought that there might have been one in the evaporator. The origional suction line was 3/8 and has not been changed except for the additional 6 feet on line. On the liquid side the original line was something like 1/8 this was removed and was changed to 1/4, again with the additional 6 feet of line. On the origional setup there was no presence of a metering device. Not sure if the small liquid line assumed this roll. Not sure now how to install a piston and calculate this piston size. I could re- insert the 1/8 origional line before the evap and maybe this would work but I have decided for some advice before proceeding with any other possibilities.
THANKS! !