Exhaust fan installation and maintenance: a kitchen fan is indispensable key kitchen equipment, it is recommended not to install in the ceiling as possible, to be installed in the engine room, the roof or exterior wall to facilitate maintenance of the place. Second, the kitchen fan because of long working hours in hot, humid, gas fumes. Regular maintenance is indispensable work. Point of failure: 1, resulting in greasy impeller blade curvature, angle deformation htf exhaust fan, air volume total pressure parameters decreased significantly, reach exhaust requirements. 2, the impeller oil stains cause impeller to lose balance, increased vibration, bearing damage. 3, harsh environments parts easily rust, damage the fan. Fire temperature exhaust fan performance and model 1, the performance of the fan performance table is listed in the most efficient range of performance, according to the air volume is divided into five high performance exhaust fan operating point htf quality, selection of press performance table Associate. Qualified fan factory exhaust fan is htf quality of clearance at the rated air volume, total pressure value error does not exceed ± 5%, the performance of the selection table is a performance standard state, regardless of the technical documentation or performance standards are required for state orders Associate. 2, the fan installation can be divided into horizontal and roof type, for wind, total pressure, mounting dimensions and other properties have special requirements. 3, HTF-Ⅰ, HTF-Ⅱ, said pressure type fire high-temperature exhaust fan exhaust fan htf, leaf type with axial flow: HTF-Ⅰ (single speed) and HTF-Ⅱ (double speed) in two; HTF-Ⅲ, HTF-Ⅳ representation pressure fire temperature exhaust dedicated 4, HTF-X for silencer type fire temperature exhaust fan, the user can choose according to the actual needs of different species. 5, HTF-W Series rooftop fire temperature exhaust fan, the user can choose according to the actual needs of flame-retardant fiberglass hood or steel hood. 6, HTF-D for low pressure type fire temperature exhaust fan. 7. Special Note: GYF and HTF series fan is similar products. htf superior quality exhaust fan electromechanical _ _ liters Swiss Canton htf exhaust fan ventilation and air conditioning provided by the Swiss liter Electrical Equipment Factory. L Rui HVAC Electrical Equipment Factory (www.dzsrxfkt.com) is a leader in Dezhou, fans, ventilation equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. L Swiss leader in mechanical and electrical staff warmly welcome all inquiries negotiations to create liter Swiss electromechanical a better future.