Product Description:

The 175Z7367 is an AC variable frequency drive manufactured by Danfoss within the VLT 6000 HVAC Drives series. It is designed for heating, ventilation, and air-conditioning systems that require adjustable motor speed. The drive modulates fan or pump motors so that air-handling and chilled-water circuits operate at speeds appropriate for the building load. Reducing motor speed during periods of lower demand can also decrease unnecessary energy consumption and mechanical stress. The unit is suitable for commercial facilities that use variable-flow air or water distribution systems.

This model operates from a three-phase input of 380–460 VAC, a range that matches common industrial power supplies in commercial facilities. Its electrical section supports a maximum motor output of 18.5 kW / 25 HP, providing capacity for medium-sized air handlers or primary circulation pumps. A Compact NEMA 1 enclosure permits installation in conditioned electrical rooms while helping prevent accidental contact with internal components. User interaction takes place through the front-mounted LCP local control panel, which provides start and stop keys along with direct access to operating parameters. The drive is supplied without an integrated radio-frequency interference filter, so any required electromagnetic interference mitigation must be installed separately. Its variable-frequency output allows the connected motor to accelerate and decelerate gradually instead of relying on abrupt across-the-line starting.

Communication capabilities are limited because the drive has no integrated fieldbus option, leaving network connectivity to an appropriate external converter. The circuit boards are uncoated, so the unit should be installed away from excessive humidity, corrosive vapors, and airborne contaminants. Its internal assembly uses a standard unit configuration without customized heat-sink or gate-drive modifications. The intended usage setting is the Graham profile, which applies parameter defaults suited to HVAC duty rather than constant-torque industrial loads. No application modules are installed for functions such as dynamic braking or direct sensor integration. External control equipment can provide additional communication or application functions when the building automation system requires them.