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Contractingbusiness 9903 Cb0917 Danfoss Home Page 0
  1. Commercial HVAC

Danfoss Variable-Frequency Drives Receive AHRI Certification

Sept. 21, 2017
VLT HVAC drives have been certified under AHRI Standard 1210/1211 for stated efficiency and performance.

Danfoss received the Air-Conditioning, Heating, and Refrigeration Institute’s certification for variable-frequency drives, confirming the performance of its VLT HVAC drives based on rating standards.

According to AHRI, certification under Standard 1210/1211 enables equipment users to make informed, reliable decisions about variable-frequency drives. To receive certification, VFDs are rigorously tested according to three standard rating conditions, including efficiency at various speeds and loads, drive-generated harmonics at full load and speed, and peak voltage and rise time.

“We are pleased to offer our customers the assurance of independent AHRI certification, which sets a high bar for reliability and accuracy in the industry,” said James Kluck, senior product marketing manager, Danfoss. “As the first to engineer a variable-frequency drive dedicated for HVAC applications, Danfoss is committed to helping equipment manufacturers and building owners enjoy the benefits of better, more reliable control and energy efficiency through VFDs — reducing costs, meeting energy standards and even enabling utility rebates to be secured.”

Engineered specifically for the unique needs of HVAC pump, fan, and compressor applications, the drives enable optimized process control to reduce energy consumption, meet environmental targets and significantly reduce costs in today’s buildings.

Featuring an easy-to-use design with built-in intelligence, the AHRI Certified drives are fast and cost-effective to commission, and ensure maximum uptime even in harsh environments. A compact design and efficient heat management system make them ideal for applications where space is restricted. With the intelligence built into the drive to precisely maintain the exact flow required using the four auto-tuning, multi-input, multi-control PIDs, users experience the control and comfort expected.

Available enclosures include NEMA/UL Type 1, 12, 3R and 4X, with coated circuit boards providing an extra layer of protection. Integrated DC chokes and RFI filters safeguard installations by minimizing harmonic distortion and electromagnetic interference.

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