Device for heat collection type ventilation equipment

Details Device for heat collection type ventilation equipment Device for heat collection type ventilation equipment

F - Mech Eng,Light,Heat,Weapons

24

F

342/14

F24F 11/053 (2006.01) F24F 11/00 (2006.01) F24F 12/00 (2006.01) F28F 9/00 (2006.01) G05D 23/24 (2006.01)

Patent

CA 2023183

CONTROL DEVICE FOR HEAT COLLECTION TYPE VENTILATION EQUIPMENT ABSTRACT OF THE DISCLOSURE A control device is disclosed which suitably controls the opera- tion of first and second fans in a heat collection type ventilation equip- ment. The heat collection type ventilation equipment comprises an air supply passage for introducing the outside air into the inside, a first fan disposed in the air supply passage, an air discharge passage for dis- charging the inside air to the outside and a second fan disposed in the air discharge passage. A heat exchanger exchanges heat between the outside air passing through the air supply passage and the inside air passing through the air discharge passage. A first sensor detects the temperature of the outside air and a second sensor detects the tempera- ture of the inside air. The control device compares the sum of the tem- peratures of the outside and inside air detected by the first and second sensors with a reference temperature and operates the first fan at an operating ratio below 100% whenever the sum of the temperatures of the outside and inside air is below the reference temperature.

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