OUTDOOR AIR INTAKE HEAT PUMP TYPE AIR CONDITIONER

摘要

PURPOSE:To contrive to save energy by a method wherein the difference between the enthalpy of indoor air and that of outdoor air is calculated from the outputs of the respective sensors to detect outdoor and indoor temperatures and humidities and a damper to control the intake of outside air is controlled by opening and closing the damper in proportion to the deviation of the enthalpy difference from the set value. CONSTITUTION:A box 18 is divided with a partition wall 19 into an indoor side part 18a and an outdoor side part 18b. An indoor air passage 19 is formed as a passage led from an indoor air intake 4 through an indoor blower 9 and an indoor heat exchanger 7 to an indoor air outlet 3, while an outdoor air passage 20 is formed as a passage led from an outdoor air intake 2 through an outdoor blower 8 and an outdoor heat exchanger 6 to an outdoor air outlet 1. Furthermore, a communicating hole 19 to lead outdoor air into the indoor side is provided in the partition wall 19. An outdoor air refrigerant controlling device 14 calculates the difference between the enthalpy of the indoor air and that of the outdoor air from the outputs of the respective sensors 10- 13 to detect outdoor and indoor temperatures and humidities and controls the damper 5 installed at the outdoor air outlet 1 by opening and closing the damper 5 in proportion to the output of the enthalpy difference.