Case Study: Air Conditioning Unit 1 [Accommodation Facility] Inverterization of Air Conditioning Fan

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last updated：Oct 06, 2014

八紘テクノ

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Introducing a cost-effective inverter panel designed for cost performance to reduce power consumption.

We have introduced a cost-effective inverter panel designed for small equipment that is not easily justified in terms of cost-effectiveness. During the intermediate seasons (spring and autumn), when heating and cooling are not heavily required, we significantly reduce the rotation speed based on signals from temperature sensors. Additionally, during checkout times, we achieve substantial energy savings by forcibly lowering the rotation speed through timer control. We also automated the previously manual adjustment of damper openings according to the season, allowing for labor savings through inverter control. 【Features】 ○ Control Method: Inverter control of air conditioning fan motor rotation speed using temperature sensors ○ Target Equipment: In-room air conditioning units 　　　　　　Supply fans (5.5kW) × 2 units, Return fans (3.7kW) × 2 units For more details, please contact us or download the catalog.

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

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【Results of Implementation】 ○ Annual energy savings of 61,282 kWh → Approximately 58% reduction in electricity usage 【Implementation Points】 ○ Introduced a cost-effective inverter panel designed for small equipment, which typically has low cost-effectiveness. ○ During intermediate periods (spring and autumn) when heating and cooling are less needed, significantly reduced fan motor speed using temperature sensor signals. ○ During checkout hours, implemented timer control to forcibly lower the speed, achieving substantial energy savings. ○ Previously, the damper opening was manually adjusted according to the season; now fully opened and automated through inverter control for labor savings. ● For more details, please contact us or download the catalog.