| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a heat exchange ventilator which suppresses an abnormal sound from being generated.SOLUTION: A heat exchange ventilator includes: a main body 1 which has an outdoor suction port 1a, an indoor blowout port 1b, an indoor suction port 1c, and an outdoor blowout port 1d formed; a heat exchanger 2 which is provided in the main body 1; an air supply blower 3 which is provided on an air supply passage extending from the outdoor suction port 1a to the indoor blowout port 1b through the heat exchanger 2 and downstream from the heat exchanger 2; an exhaust blower 4 which is provided on an exhaust passage extending from the indoor suction port 1c to the outdoor blowout port 1d through the heat exchanger 2 and downstream from the heat exchanger 2; outside air temperature detection means 6 of detecting an outside air temperature; and control means 7 of controlling the exhaust blower 4 based upon the detected temperature of the outside air temperature detection means 6. The control means 7 stops the exhaust blower 4 or places the exhaust blower 4 in operation with small air capacity when the detected temperature of the outside air temperature detection means is equal to or lower than a threshold temperature.</p> |
