Method and system for controlling a single zone hvac...

Details Method and system for controlling a single zone hvac... Method and system for controlling a single zone hvac...

F - Mech Eng,Light,Heat,Weapons

25

B

341/27

F25B 29/00 (2006.01) G06F 15/20 (1990.01)

Patent

CA 1293551

METHOD AND SYSTEM FOR CONTROLLING A SINGLE ZONE HVAC SUPPLYING MULTIPLE ZONES ABSTRACT OF THE DISCLOSURE An improved monitoring and control system for a heating, ventilating and air conditioning (HVAC) unit which provides zone control in plural zones in which each zone includes a thermostat which controls a damper for its zone. One thermostat is selected and programmed to function as a monitor or master thermostat for selective actuation of the HVAC unit as well as controlling its zone damper. The other thermostats are programmed to function as slave thermo- stats and are interfaced with the master thermostat thereby allowing for independent zonal control in a multiple zone system which uses a single zone HVAC unit. The master thermostat may also receive control signals and data from higher intelligence such as a computer. Each thermostat is microcomputer-controlled with provision for both local and manufacturer programming via supplemental memory devices. The master thermostat contains a real time clock for time- basing the entire system with attendant advantages.

570118

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