Micro Chiller-Based Heating, Ventilation, and Air Conditioning System

A method for controlling a temperature in a first space and a second space within a building, comprising:

• (a) providing a first fan unit having a first liquid coil and a first fan, with said first fan configured to blow air over said first liquid coil and into said first space;
• (b) providing a second fan unit having a second liquid coil and a second fan, said second fan configured to blow air over said second liquid coil and into said second space;
• (c) providing a first micro chiller including,
• (i) a first compressor,
• (ii) a first condenser,
• (iii) a first expansion valve,
• (iv) a first evaporator, and
• (v) a first refrigerant circulation loop configured to circulate said refrigerant from said first compressor to said first condenser, to said first expansion valve, to said first evaporator, and back to said first compressor;
• (d) providing a second micro chiller including,
• (i) a second compressor,
• (ii) a second condenser,
• (iii) a second expansion valve,
• (iv) a second evaporator, and
• (v) a second refrigerant circulation loop configured to circulate said refrigerant from said second compressor to said second condenser, to said second expansion valve, to said second evaporator, and back to said second compressor;
• (e) providing a primary liquid loop running through said building;
• (f) providing a first secondary liquid loop running between said first microchiller and said first fan unit;
• (g) providing a second secondary liquid loop running between said second microchiller and said second fan unit;
• (h) providing a first set of valves controlling flow through said first evaporator of said first micro chiller;
• (i) providing a second set of valves controlling flow through said first condenser of said first micro chiller;
• (j) providing a third set of valves controlling flow through said second evaporator of said second micro chiller;
• (k) providing a fourth set of valves controlling flow through said second condenser of said second micro chiller;
• (l) heating said first space by setting said first set of valves to circulate liquid from said primary liquid loop through said first evaporator and setting said second set of valves to circulate liquid from said first secondary liquid loop through said first condenser;
• and
• (m) cooling said second space by setting said third set of valves to circulate liquid from said second secondary liquid loop through said second evaporator and setting said fourth set of valves to circulate liquid from said primary liquid loop through said second condenser.