| 摘要 |
PURPOSE:To intend to save energy consumption, by interconnecting the inside of a store to the out side by an intake vent provided with a shutter, and by interconnecting the inside of a store to the ventilating port of an attic by a ventilating fan provided with a shutter, passing through the back of showcases, in a big store furnished with showcases of multi-stage and open type. CONSTITUTION:At the time of air heating, the discharged heat from the compressor 52 and the condenser 54 of a cooling system is circulated through a store to heat the store, as shown by arrow signs in solid lines, passing through a space 61 at the back of showcases, which is provided as an air passage, and through an air passage 66, by closing the shutter of a ventilating fan 63 and the shutter 73 of an intake vent. When air-cooling and air-heating are not necessary for the store, both the shutter 73 of an intake vent and the shutter of a ventilating fan 63 are opened, and the ventilating fan 63 is driven to ventilate the inside of a store as shown in dotted lines. At the time of air-cooling, on the other hand, the shutter 73 of an intake vent and the shutter of a ventilating fan 63 are opened, and an air-conditioner 10 is operated to cool the inside of a store, together with discharging the air in high temperature from the attic. |
