Duct type multizone air conditioning system
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsPeter Thompson, Nobuo Otsuka, Kisuke Yamazaki, Hideo Igarashi
Life of this patent
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Abstract
An air duct type multizone air conditioning system having air dampers and corresponding thermostats in respective zones under the control of a main controller. The main controller can override desired temperatures selected by the corresponding thermostats in any of the zones and automatically detects the number of the number of zones, the presence of an auxiliary heater, and a heat pump, and the presence of an air damper and corresponding thermostat properly located in the same zone. The main controller also receives information regarding the operating cost of the heat pump and the auxiliary heater to ensure their cost-effective use.
Claims6
A duct type multizone air conditioning system having a cooling and heating heat pump, a heating gas burner, a supply air duct for supplying air to a plurality of zones to be air conditioned, and a blower fan for forcibly circulating conditioned air through the duct to the plurality of zones to be air conditioned comprising:
- a plurality of temperature detecting means, respectively disposed in corresponding ones of the zones to be air conditioned, each temperature detecting means detecting a present temperature of the corresponding one of the zones;
- a plurality of air damper means, respectively disposed in corresponding ones of the zones, for controlling the supply air to the corresponding zones to be air conditioned;
- a plurality of zone temperature setting means, respectively disposed in corresponding ones of the zones, each temperature setting means setting a present set temperature for the corresponding one of the zones;
- means for controlling the opening and closing of the air damper means so that the present temperatures detected by each of said temperature detecting means become said present set temperatures set by said zone temperature setting means;
- means for automatically determining the number of the zones to be air conditioned;
- mean sfor automatically determining the presence of an air damper means and corresponding temperature detecting means in each zone;
- means for automatically determining the presence of a heating gas burner and the presence of a heat pump within the air conditioning system;
- means for automatically determining the presence of a damper means and corresponding temperature setting means in the same zone;
- and
- means for receiving heat pump cost and heating gas burner cost information so as to ensure cost-effective use of the heat pump and heating gas burner.
Dependencies are inferred from the claim text.