Manage harmonics with ULH drives
Discover how our ultra low-harmonic variants can help you stay compliant, cost effectively.
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Find the drive to fit your application
Optimized for wall-mounted, cabinet-mounted, or free-standing installation, these drives are the core of an energy efficient HVAC system.
For applications with sensitive power grids or strict harmonic distortion limits, the iC7-HVACR ULH (ultra low harmonic) variant is the ultimate solution
Features and benefits
The iC7-HVACR ULH variant is a leading ultra low-harmonic HVAC drive, ensuring compliance with the strictest power quality standards and minimizing electrical disturbances. This makes it one of the most effective harmonic mitigation drives available.
Unique back-channel cooling removes up to 90% of heat losses from the electrical room, for maximum efficiency and space optimization. Extend equipment service life and reduce energy costs significantly with dramatically less air conditioning load.
With market-leading hardware-based protection, your iC7-HVACR variable frequency drive is safe from unauthorized access. A crypto chip ensures end-to-end encrypted data transfer.
Key features
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Highly compact design saves space and reduces cooling costs in your energy efficient HVAC system
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Advanced, hardware-based cybersecurity: Avoid compromising the security of your property
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VFD for HVAC and refrigeration: Enhanced HVACR intelligence with more sensors, analytics, and future-proof connectivity for optimized HVACR system performance
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EMC compliance: Built-in EMC filter protects equipment against electrical interference (Categories C1, C2, and C3)
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Ultra low-harmonic HVAC drives: iC7-HVACR ULH drives for harmonic mitigation deliver supreme THDi (< 3-5%) to protect equipment from overheating and malfunctioning
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Choose integrated dual Ethernet or RS 485 port with multiple fieldbus protocols available: BACnet/IP, Modbus TCP, EtherNet/IP, PROFINET RT, EtherCAT, BACnet MSTP, and Modbus RTU
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Safe Torque-Off (STO) up to SIL3 / Performance Level e (PLe) as standard, for the highest reliability and easier certification
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Numerous integrated sensors and sensor calibration improve performance and control accuracy, contributing to a more energy-efficient HVAC drive
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Use our virtual models to speed up and de-risk your development project when you upgrade your HVACR system
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Efficient heat management with back-channel cooling
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Connect to IM or PM motors and the drive will adapt quickly
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Integrated condition-based monitoring (CBM) maximizes system uptime by preventing issues before they occur
Next-generation VFD for HVACR, delivering unmatched performance and reliability in the most demanding environments.
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iC7 series: Rethinking drives
With more than 1,000 researchers focusing every effort on breaking new ground, we’ve been able to create VFDs that are smaller and better performing than anything you’ve ever seen — and packed with even more power, quality, and reliability. The iC7-HVACR is a testament to this, offering the most energy-efficient HVAC drives for a sustainable future.
Discover our approach