Suppose you have a conventional rooftop packaged unit with DX cooling and hot gas reheat. Some, or all, of the hot gas is taken and routed into the reheat coil. After hot gas leaves the coil, it's a mixture of gas and liquid. In the systems I typically deal with (such as Trane Voyager) this gas is then routed into the liquid line before the filter dryer.
Under part load condition refrigerant coming out of the reheat coil may not be all liquid. Thus feeding it into the evaporator will reduce its capacity.
An alternate way of routing refrigerant out of the reheat coil is to route it back into hot gas line going back to the condenser.
My question is which is a better way of doing this from a energy effeciency and operational standpoint?