Features fresh air ventilator: 1 "filter clogging alarm function (optional) When the air filter to accumulate a lot of dust, when you need to replace the filter vertical fresh air ventilator, the machine automatically display alarm 2, intelligent. controller (optional) LCD intelligent controller for a new wind ventilators price, exquisite beauty, simplify ceiling fresh air ventilator, a key to complete a variety of functional operation. can be pre-set equipment running in different time periods ( equipment start-stop air volume). 3, safe and reliable machine with no moving parts except the fan is almost no maintenance to ensure long-term stable and reliable work .4, handsome in appearance, economical and durable. how to choose a new wind ventilators? 1. fresh air ventilation machine for the room with a small ventilation with heat recovery equipment. The main control parameters chosen for air flow, static pressure loss, the export total pressure, input power, effective ventilation rate, the exchange efficiency, noise, etc. 2. fresh air ventilator Performance should meet the requirements of Table 1, means the nominal amount of wind heat exchange efficiency of the corresponding value of not less than the requirements of Table 2. 3. In general, when a new air temperature of about -10 ℃, the exhaust side frost may occur, in device before setting the air preheater. 4. The device of choice should meet other standards and specifications requirements. fresh air ventilation system, Heilongjiang new wind ventilators, liter by liter Swiss Swiss Mechanical and Electrical HVAC Electrical Equipment Factory. l Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) strong, credible, in Dezhou fan, ventilation equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Swiss electromechanical and you work up into the brilliant, for a better future!