llf12
A simple high side float can separate liquid from the reheat flow and bypass the secondary condenser. However, this is best suited for a parallel style system, and whereas this can be extremely simple solution where you only need a small portion of the total heat of rejection,(10 to 20%)...
There are several issues to contend with here. Oil return is not usually a concern, as the oil is miscible with the liquid refrigerant and if the liquid refrigerant flows correctly so will the oil.
The issues are with refrigerant managment. You will need a receiver, and some method of flooding...
I have listened and just have to put my two cents in. I work for an air conditioning manufacturer. We spend a lot of time and money trying to make our systems more efficient.
Examination of a standard Pressure enthaply diagram or a temperature Entropy diagram and a component balance graph, will...
WOW the eveporator is only 4x6 inches? I cant envision a 1/4 ton of circuiting in that area without a high deltaT.
If the components are not all balanced for the load at a specific evap temperature, perhaps the hand expansion valve would be the most forgiving solution. Some flowmeters in that...
Much more detail would be required to give a definative answer.
There are several options to use as a metering device in your VCRU.
1) hand expansion valve (what you are suggesting)
2) Capillary tube
3) automatic expansion valve
4) Thermostatic expansion valve
5) Electric or electronic...