Case Study: Fan 4 [Office Building] - Inverterization of Cooling Tower Fan

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last updated：Oct 03, 2014

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Eliminating abnormal noise caused by fan belt slippage at startup with gentle acceleration of the inverter.

The gentle acceleration of the inverter eliminates abnormal noises caused by fan belt slippage at startup (noise reduction effect). By adding rotational control via the inverter to the start-stop control method using temperature sensors, significant power savings are achieved. Controlling three motors with one 18.5kW inverter helps to reduce manufacturing and installation costs. 【Features】 ○ Control Method: Inverter control of fan motor speed using temperature sensors ○ Target Equipment: Absorption chiller Cooling tower fans (5.5kW) × 3 units For more details, please contact us or download the catalog.

Related Link - http://www.hakko-techno.co.jp/case/installation/bl…

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【Results of Implementation】 ○Annual energy savings of 20,072 kWh 　→Approximately 57% reduction in electricity consumption 【Implementation Points】 ○Elimination of abnormal noise caused by fan belt slippage during startup through gentle acceleration of the inverter (noise reduction effect) ○Significant power savings achieved by adding rotational control via inverter to the temperature sensor-based start-stop control method ○Control of three motors with one 18.5 kW inverter, reducing manufacturing and implementation costs ●For more details, please contact us or download the catalog.