HVACRotor Drives
Drives for Rotary Heat Exchangers
We offer a wide product range designed with simplicity and efficiency in mind, helping you to find drives that fit any rotary heat exchanger system. You get a reliable solution combining RS-485 as well as analogue technology in a flexible design. The DRHX drives are easy to install and bring your system efficiency (drive & motor) up to 65%
We offer both customer-specified and standard products. Free choice of vertical or horizontal installation.
OJ ElectronicsDouble-patented drive solution
The DRHX drives have a self-cooling design, eliminating the need for additional cooling, such as fans. The gear-free technology ensures accurate control throughout a broader range of speeds. Our patented sensorless software monitors the rotation of the rotor, which means that no physical/optical rotor guard is required. This gives you a simple, efficient solution, and with fewer components, you also get an easier installation.
RotorField oriented sensorless motor control
Combining a high-torque stepper motor with a closed-loop sensorless control gives you more accurate, energy-efficient control. The drive regulates the current to the exact level required to achieve the right speed and torque. Patent granted.
RotorRotor Constant Speed
OJ DRHX Constant Speed lets you master the new technology of a stepper motor in the most basic way. The setting is either on or off. You’ll typically use these drives in simple cooling/ventilation systems. When on, the motor will run on one of four predefined speeds. It is a cost-efficient solution when you do not need a demand-driven application.
The drives cover from 1 Nm to 8 Nm.
RotorRotor with Modbus Control
With RS-485 control, the drive can both send and receive information. This provides you with advanced control, allowing the recovery of energy from the air to be adjusted as required.
This solution is often used in an AHU system. The user interface provides visual information to the user via et triple colour LED
Covers from 1 Nm to 8 Nm.
RotorRotor with Modbus & Analogue Control
Modbus and 0-10V control leave you with all options of advanced control and optimization of energy consumption and air quality. A 3×7 segment display provides user information of actual performance and error messages.
This solution is perfect for advanced AHU systems and refurbishment.
Covers from 1 Nm to 14 Nm
RotorProducts
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OJ DV GEN II Dedicated Drives for Ventilation Applications
OJ DV GEN II is the upgraded version of our successful series of dedicated drives for ventilation applications. This newest version offers improved ca...
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OJ DV GEN II Dedicated Drives for Ventilation Applications
OJ DV GEN II is the upgraded version of our successful series of dedicated drives for ventilation applications. This newest version offers improved ca...
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OJ DV GEN II with User Interface Drives with User Interface for Ventilation Applications
OJ DV GEN II is the upgraded version of our series of dedicated drives for ventilation applications. The built-in 2” touchscreen with color display ...
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OJ Air2 Master Complete AHU Control System
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OJ Air™ Plus Master Complete AHU Control System
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OJ-DRHX RS-485 & Analog control Flexible DRHX with Sophisticated Software
The OJ-DRHX RS-485 & Analog control is equipped with both Modbus RTU, BACnet MS/TP and an 0-10V interface for controlling, making it the perfect c...
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PTH-3202-DF / PTH 3203-DF / PTH-3502-DF / PTH-3202 / PTH-3502 Pressure Transmitter with Analogue Output
This classic range of pressure transmitters is a firm favourite with quality-conscious professionals worldwide.
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OJ Air Cloud Cloud for AHU and Ventilation Control
The cloud-based system provides a total overview of all the systems connected to the cloud and their current status.
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OJ-DVULH Ultra-Low Harmonic Drive
The OJ DV Ultra Low Harmonic drive lets you reduce harmonic distortion with an easy-to-install, compact solution. The 3-phase active frontend incorpor...
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OJ-DC Energy-Efficient Drives for Scroll Compressors
Designed for compressors in AHUs and chillers. Built on proven OJ Drives® technology. With more than 25 years of experience in developing drives for ...
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