{"id":2235,"date":"2020-04-16T15:07:12","date_gmt":"2020-04-16T15:07:12","guid":{"rendered":"https:\/\/ojelectronics.com\/drives\/?p=2235"},"modified":"2026-08-10T13:56:02","modified_gmt":"2026-08-10T12:56:02","slug":"new-fan-controller-for-energy-renovation-projects","status":"publish","type":"post","link":"https:\/\/ojelectronics.com\/drives\/news-ventilation\/new-fan-controller-for-energy-renovation-projects\/","title":{"rendered":"New fan controller for energy renovation projects"},"content":{"rendered":"The latest electric drive in the OJ range of supporting products was created specifically with energy renovation and retrofit projects in mind.

\u2018Like so many HVAC controls created by OJ, this was directly prompted by customer demand,\u2019 explains Preben Jessen, Product Manager for Drives at OJ Electronics. \u2018A lot of our customers work with energy renovation and retrofit projects where they want to cut out a single, large fan and replace it with several smaller ones around the system \u2013 which also allows them to introduce differentiated control rather than just a simple on-off switch. Systems of that kind are much more energy-efficient than the old set-ups, but of course you\u2019ll need a controller for the new fans. That\u2019s where the new OJ-VCH HMI electric drive controller comes in.\u2019<\/p>\n

Growing range of supporting products<\/strong><\/h3>\n

\u2018The new controller perfectly sums up our policy of making a range of supporting products that precisely matches our customers\u2019 real needs. Essentially, we were asked if we would make one!\u2019 explains Preben Jessen. \u2018It\u2019s dedicated to ventilation set-ups, so we\u2019ve been able to make a very simple device that still does everything you\u2019ll need in most retrofit projects\u2019.<\/p>\n

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The functions you need<\/strong><\/h3>\n

\u2018Even though it lets you control up to 32 fans, the controller itself is very compact and simple to use,\u2019 says Preben. \u2018You can control the speed of the fans directly, or you can let the fan speed be governed by the flow or pressure in the ventilation system; whatever works best for you! Similarly, you can control the speed, pressure or flow directly from the 3.5\u201d touch display \u2013 or via a 0-10V analogue signal if you prefer. It also comes with a digital input that you can configure as a start\/stop signal if this is the best option in a given situation. And speaking of options: if you want alarms in the event of system faults, you can fit a relay option module in just one of the connected drives and select it from the on-screen menu as a shared alarm relay that covers the entire system\u2019.<\/p>\n

\u2018At the end of the day, we set out to make a device that would make energy renovation projects simpler. So we included the features that would make that happen \u2013 and left out all the things you don\u2019t need for ventilation projects. We think it will prove very useful for many clients, enabling them to bid on and carry out more efficient retrofit projects in future.\u2019<\/p>\n

The new OJ-VCH-HMI in brief<\/strong><\/h3>\n