I have to repair an facility that serves the freezing tunnels and storage of frozen products.
In facts the plant is DX ammonia system which doesn't work properly.

So, the frozen product ( -20C room temperature) is works properly when the freezing tunnels is off. The tunnels do not reach freezing temperature, even when frozen deposits are stopped.

So I am thinking about to keep the circuit (DX) for the frozen product store and to mount an separatelly liquid separator pumps and ammonia pumped air coolers for freezing tunnels.


In fact to use the same compressors and evaporating condenser. But after the liquid receiver to split in one DX circuit and another one for ammonia pumped. For return circuit to join again the two circuits before the suction of compressors.

Do you think is it possible something like this?
Will working?

Thanks for your help.