An operation control apparatus of air-conditioning apparatus having an outdoor unit and an indoor unit includes a controller programmed to execute energy conservation control of the air conditioning apparatus. The controller includes at least one required temperature calculation part calculating a r
An operation control apparatus of air-conditioning apparatus having an outdoor unit and an indoor unit includes a controller programmed to execute energy conservation control of the air conditioning apparatus. The controller includes at least one required temperature calculation part calculating a required evaporation temperature or a required condensation temperature based on either a current amount of heat exchanged in a usage-side heat exchanger of the indoor unit and a greater amount of heat exchanged in the usage-side heat exchanger than the current amount, or an operating state amount that yields the current amount of heat exchanged in the usage-side heat exchanger and an operating state amount that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount.
대표청구항▼
1. An operation control apparatus of an air-conditioning apparatus having an outdoor unit and an indoor unit, the air-conditioning apparatus configured to perform indoor temperature control so that an indoor temperature approaches a set temperature, the operation control apparatus comprising: a cont
1. An operation control apparatus of an air-conditioning apparatus having an outdoor unit and an indoor unit, the air-conditioning apparatus configured to perform indoor temperature control so that an indoor temperature approaches a set temperature, the operation control apparatus comprising: a controller programmed to execute energy conservation control of the air conditioning apparatus,the indoor unit including an adjustable indoor air blower, andthe controller including at least one required temperature calculation part calculating a required evaporation temperature of the indoor unit based on either a current amount of heat exchanged in a usage-side heat exchanger of the indoor unit and a greater amount of heat exchanged in the usage-side heat exchanger than the current amount by a displacement which is determined based on a temperature difference between the indoor temperature and the set temperature, oran air flow rate of the adjustable indoor air blower that yields the current amount of heat exchanged in the usage-side heat exchanger and an air flow rate of the adjustable indoor air blower that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount. 2. The operation control apparatus of an air-conditioning apparatus according to claim 1, wherein the required temperature calculation part uses at least a current air flow rate of the adjustable indoor air blower of the indoor unit and an air flow rate greater than the current air flow rate within a predetermined air flow rate range of the indoor air blower as the operating state amount that yields the current amount of heat exchanged in the usage-side heat exchanger and the operating state amount that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount, when calculating the required evaporation temperature or the required condensation temperature. 3. The operation control apparatus of an air-conditioning apparatus according to claim 2, wherein the controller further includes an air-conditioning capability calculation part calculating the amount of heat exchanged in the usage-side heat exchanger based on the air flow rate of the indoor air blower and/or the degree of superheat or degree of subcooling in the outlets of the usage-side heat exchangers. 4. The operation control apparatus of an air-conditioning apparatus according to claim 1, wherein the required temperature calculation part uses at least either a degree of superheat in an outlet of the usage side heat exchanger less than a current degree of superheat within a range of degrees of superheat in which the degree of superheat is settable by regulating an opening degree of an expansion mechanism of the indoor unit as well as the current degree of superheat, ora degree of subcooling in the outlet of the usage side heat exchanger less than a current degree of subcooling within a range of degrees of subcooling in which the degree of subcooling is settable by regulating the opening degree of the expansion mechanism as well as the current degree of subcooling,as the operating state amount that yields the current amount of heat exchanged in the usage-side heat exchanger and the operating state amount that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount, when calculating the required evaporation temperature or the required condensation temperature. 5. The operation control apparatus of an air-conditioning apparatus according to claim 1, wherein the required temperature calculation part uses at least a current air flow rate of the adjustable indoor air blower of the indoor unit and an air flow rate maximum value that is the air flow rate of the indoor air blower maximized within a predetermined air flow rate range of the indoor air blower, as the operating state amount that yields the current amount of heat exchanged in the usage-side heat exchanger and the operating state amount that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount, when calculating the required evaporation temperature or the required condensation temperature. 6. The operation control apparatus of an air-conditioning apparatus according to claim 1, wherein the required temperature calculation part uses at least either a current degree of superheat in an outlet of the usage side heat exchanger and a degree of superheat minimum value which is a minimum in a range of degrees of superheat in which the degree of superheat is settable by regulating an opening degree of an expansion mechanism of the indoor unit, ora current degree of subcooling in the outlet of the usage side heat exchanger and a degree of subcooling minimum value which is a minimum in a range of degrees of subcooling in which the degree of subcooling is settable by regulating the opening degree of the expansion mechanism,as the operating state amount that yields the current amount of heat exchanged in the usage-side heat exchanger and the operating state amount that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount, when calculating the required evaporation temperature or the required condensation temperature. 7. The operation control apparatus of an air-conditioning apparatus according to claim 1, wherein the controller is configured to perform capacity control of a compressor of the outdoor unit based on a target evaporation temperature or a target condensation temperature, andthe required evaporation temperature or the required condensation temperature is used as the target evaporation temperature or the target condensation temperature, respectively. 8. The operation control apparatus of an air-conditioning apparatus according to claim 1, wherein the controller includes a plurality of the required temperature calculation parts calculating the required evaporation temperature for each of a plurality of indoor units, andthe controller further includes a target value establishing part configured to establish a target evaporation temperature based on a minimum required evaporation temperature among the required evaporation temperatures of the indoor units calculated in the required temperature calculation parts. 9. The operation control apparatus of an air-conditioning apparatus according to claim 8, wherein the required temperature calculation parts use at least current air flow rates of a plurality of adjustable indoor air blowers of the indoor units and air flow rates greater than the current air flow rates within a predetermined air flow rate range, respectively, as air flow rates of the adjustable indoor air blowers that yield the current amounts of heat exchanged in the usage-side heat exchangers and air flow rates of the adjustable indoor air blowers that yield greater amounts of heat exchanged in the usage-side heat exchangers than the current amounts, when calculating the required evaporation temperature for each indoor unit. 10. The operation control apparatus of an air-conditioning apparatus according to claim 8, wherein the required temperature calculation parts, when calculating the required evaporation temperature or the required condensation temperature for each indoor unit, use at least either current degrees of superheat in outlets of the usage side heat exchangers and degrees of superheat less than the current degrees of superheat within a range of degrees of superheat in which the degrees of superheat are settable by regulating opening degrees of expansion mechanisms of the indoor units, orcurrent degrees of subcooling in outlets of the usage side heat exchangers and degrees of subcooling less than the current degrees of subcooling within a range of degrees of subcooling in which the degrees of subcooling are settable by regulating the opening degrees of the expansion mechanisms,as the operating state amount that yields the current amounts of heat exchanged in the usage-side heat exchangers and the operating state amount that yields the greater amounts of heat exchanged in the usage-side heat exchangers than the current amounts. 11. The operation control apparatus of an air-conditioning apparatus according to claim 8, wherein the required temperature calculation parts use at least current air flow rates of a plurality of adjustable indoor air blowers of the indoor units and an air flow rate maximum value that is the air flow rates of the indoor air blowers maximized within a predetermined air flow rate range, respectively, as the operating state amount that yields the current amounts of heat exchanged in the usage-side heat exchangers and the operating state amount that yields the greater amounts of heat exchanged in the usage-side heat exchangers than the current amounts, when calculating the required evaporation temperatures or the required condensation temperatures for each indoor unit. 12. The operation control apparatus of an air-conditioning apparatus according to claim 8, wherein the required temperature calculation parts, when calculating the required evaporation temperature or the required condensation temperature for each indoor unit, use at least either current degrees of superheat in outlets of the usage side heat exchangers and a degree of superheat minimum value which is the minimum in a range of degrees of superheat in which the degrees of superheat are settable by regulating the opening degrees of the expansion mechanisms, orcurrent degrees of subcooling in outlets of the usage side heat exchangers and a degree of subcooling minimum value which is the minimum in a range of degrees of subcooling in which the degrees of subcooling are settable by regulating the opening degrees of the expansion mechanisms,as the operating state amount that yields the current amounts of heat exchanged in the usage-side heat exchangers and the operating state amount that yields the greater amounts of heat exchanged in the usage-side heat exchangers than the current amounts. 13. The operation control apparatus of an air-conditioning apparatus according to claim 8, wherein the controller is configured to perform capacity control of a compressor of the outdoor unit based on the target evaporation temperatures or the target condensation temperatures. 14. An operation control apparatus of an air-conditioning apparatus having an outdoor unit and an indoor unit, the air-conditioning apparatus configured to perform indoor temperature control so that an indoor temperature approaches a set temperature, the operation control apparatus comprising: a controller programmed to execute energy conservation control of the air conditioning apparatus,the indoor unit including an adjustable indoor air blower, andthe controller including at least one required temperature calculation part calculating a required condensation temperature of the indoor unit based on either a current amount of heat exchanged in a usage-side heat exchanger of the indoor unit and a greater amount of heat exchanged in the usage-side heat exchanger than the current amount by a displacement which is determined based on a temperature difference between the indoor temperature and the set temperature, oran air flow rate of the adjustable indoor air blower that yields the current amount of heat exchanged in the usage-side heat exchanger and an air flow rate of the adjustable indoor air blower that yields the greater amount of heat exchanged in the usage-side heat exchanger than the current amount. 15. The operation control apparatus of an air-conditioning apparatus according to claim 14, wherein the controller includes a plurality of the required temperature calculation parts calculating the required condensation temperature for each of a plurality of indoor units, andthe controller further includes a target value establishing part configured to establish a target condensation temperature based on a maximum required condensation temperature among the required condensation temperatures of the indoor units calculated in the required temperature calculation parts. 16. The operation control apparatus of an air-conditioning apparatus according to claim 15, wherein the required temperature calculation parts use at least current air flow rates of a plurality of adjustable indoor air blowers of the indoor units and air flow rates greater than the current air flow rates within a predetermined air flow rate range, respectively, as air flow rates of the adjustable indoor air blowers that yield the current amounts of heat exchanged in the usage-side heat exchangers and air flow rates of the adjustable indoor air blowers that yield greater amounts of heat exchanged in the usage-side heat exchangers than the current amounts, when calculating the required condensation temperature for each indoor unit.
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Bahel Vijay (Sidney OH) Millet Hank (Piqua OH) Hickey Mickey (Sidney OH) Pham Hung (Dayton OH) Herroon Gregory P. (Piqua OH), Control system for heat pump having humidity responsive variable speed fan.
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