Product Description:

The 178B2014 is an HVAC-oriented AC drive manufactured by Danfoss and supplied under the VLT 6000 HVAC Drives series. It regulates the speed of three-phase induction motors in air-handling units, chillers, and pumps, allowing building automation systems to match airflow or water flow to demand while reducing energy use. As part of an industrial automation loop, it converts fixed-frequency mains power into a variable-frequency output that the motor follows, supporting precise temperature and pressure control across commercial facilities.

The drive accepts a supply of 380–460 VAC, a range that covers common 400 V distribution networks in mechanical rooms. Its power stage is rated at 30 kW/40 HP, allowing it to start and control medium-sized fan or pump motors without external soft starters. The enclosure uses the Compact IP20 format, providing protection against accidental finger contact when installed inside a switchboard while relying on the cabinet for protection from dust and moisture. To limit conducted electromagnetic noise, the unit integrates a Class A1 and B filter, which can reduce the need for additional external filtering components. The product is delivered with no local control panel, so parameter changes require a compatible remote panel or PC software connected through the front-mounted service port.

The target application is HVAC, and the standard unit does not include special protection for aggressive operating conditions. Because it has uncoated circuit boards, the drive should be installed in a clean, low-humidity electrical room to reduce the risk of corrosion. The general application option slot and the fieldbus slot are unpopulated, simplifying the initial wiring while leaving space for compatible communication cards if network integration is needed later. The drive can control equipment used for ventilation, cooling-water circulation, and pressure regulation, while its variable-speed output allows motor operation to follow changing building demand.