Nu-Calgon 4900-20 iWave-R Residential Air Ionization System

With technology installed in over 200,000 applications, iWave-R is the world’s first self-cleaning, no maintenance needlepoint bi-polar ionization generator designed specifically for treating air in residential duct A/C systems. As the air flows past the iWave-R, positive and negative ions actively treat the supply air, reducing certain bacteria and viruses in the coil and living space. The ionization process also reduces smoke and static electricity, as well as controlling odors (cooking, pet, VOCs) and other particles (no more sunbeams) in the air. iWave-R is validate to meet UL 867 ozone requirements. 

iWave-R treats the air in any brand of residential duct air conditioning systems up to 6 tons (2400 CFM) in size with no maintenance and no replacement parts. Designed for universal mounting, the iWave-R  is easy to install inside or outside of duct, or can be attached magnetically near the indoor fan in the air handler. Simply connect to power using its patented multi-voltage input capability. Mount the iWave-R after the return filter. The iWave-R can be mounted before the coil if the primary concern is treating the coil. If the primary concern is treating the occupied space, then the iWave-R should be installed on the supply side of the coil. In regions with high humidity, it is always recommend being installed on the supply side of the coil. iWave-R always works at peak performance, producing over 160 million ions/cc per polarity (320 million total ions/cc), more than any other ionizer product on the market. Its patent-pending self-cleaning design includes a programmable cleaning cycle that can clean the emitter brushes every 1, 3, 5 or 10 days. The iWave-R is factory set to clean every third day which is adequate for a typical installation. 

• Patented self-cleaning design ensures ongoing peak performance


• Needlepoint ionization actively treats air in the living space


• For duct systems up to 6 tons (2400 CFM)


• Easily installs in minutes in A/C system


• Multi-Voltage input – 24VAC to 240VAC


• Validated to meet UL 867 ozone requirements


• Universal mounting with magnets


• OEM Approved

Three Year Limited Warranty Nu-Calgon offers a three year limited warranty on iWave products. For a valid warranty claim within three years, proof of purchase and proof of installation by a licensed HVAC or Electrical contractor must be provided. See full warranty at iwaveair.com for complete details.

4900-20 Instruction Bulletin

4900-20 Product Bulletin

4900-20 Application Bulletin