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residential chilled water systems
Just a side note, take a close look at the Mitsubishi City Multi web site. This is a single outdoor unit (heat pump) with a central distribution box inside and then you can pipe I think up to 16 air handlers off that. Outdoor units start at 4 ton I think and now go up to 20. You can run heating & cooling at the same time. and when both are running thats when you get the highest efficiency. Great for multi air handler jobs, very quiet with a turn down to 15% of full capacity. Uses a inverter compressor with bypass + variable speed indoor units, ducted or non ducted.