What? If you dont put the coil in the air handler, where else are you going to put it? I dont think you understand what your talking about, or you just arent explaining yourself clearly.
If a combination of chillers and boilers in parallel provided the source of water, rather than put the coil at the air handler and zone the system by varying the air flow to each zone, could smaller coils be distributed at the base of each zone and the water flow be managed to adjust the relative heating and cooling between zones? Is this done in any systems? If so, what equipment is used to manage it?
Thanks,
David
What? If you dont put the coil in the air handler, where else are you going to put it? I dont think you understand what your talking about, or you just arent explaining yourself clearly.
Your may be increasing the complexity of the system more than is necessary.
Separate coils would each reguire a water solenoid valve, drain pan, and associated drain lines. You also have to figure out how to handle the case when the drain line is stopped up. Keeping the coil in the air handler solves these issues.
Another issue is blowing air over a coil for a zone that is not calling for cooling. In this case, you would be increasing the humidity by drying the coil.
A simpler solution is probably to just keep the coil in the air handler, add zoning dampers, and drive the compressor with a variable speed drive.
That is probably the easiest way of doing it, the only other way is to have an air handler in each zone with a seperate valve for each coil.
(I get it now, I had to re-read it a few more times very slowly)