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Aluminum Desiccant Wheels offer ERV retrofit.

Press Release Summary:

Measuring 3¾ in. wide, Unitary Wheel Cassette Series features corrosion-resistant, proprietary desiccant that is applied to lightweight all-aluminum wheel substrate. Honeycomb matrix's fluted opening design efficiently produces maximum latent and sensible air-to-air heat transfer. Besides assisting buildings in surpassing ASHRAE 90.1 building energy compliance, aluminum wheels can withstand temperatures of up to 180°F. Wheel diameters include 30, 36, 41, 46, 52, 58, 64, 68, and 74 in.

Original Press Release:

SEMCO Introduces Aluminum Desiccant Wheel Drop-In Cassette for ERV Retrofits

Unitary Wheel Cassette is designed as the HVAC industry's first drop-in replacement  for polymer desiccant wheels in most ERV brands.

SEMCO® LLC, Columbia, Mo., an energy-efficient HVAC equipment  and IAQ technology leader, introduces the Unitary Wheel Cassette (UWC) Series, a sensible and latent energy recovery aluminum desiccant wheel. The UWC Series is designed and packaged as the HVAC industry's first drop-in replacement for polymer desiccant wheels in most unitary ERV brands.

The UWC Series'  3-3/4-inch-wide (100-mm) wheels feature a fast-acting, corrosion-resistant, proprietary desiccant that's applied to a sturdy, but lightweight all-aluminum wheel substrate. The honeycomb matrix's fluted opening design efficiently produces maximum latent and sensible air-to-air heat transfer, but generates up to 50-percent less HVAC system static pressure than polymer film wheels. Besides assisting buildings in surpassing ASHRAE 90.1 building energy compliancy, the aluminum wheels also have longer lifecycles and vastly less periodic maintenance requirements than polymer wheels and can withstand temperatures of up to 180°F.

The UWC Series offers nine wheel diameters of  30 (762), 36 (914), 41 (1041), 46 (1168), 52 (1320), 58 (1473), 64 (1625), 68 (1727) and 74-inches (1879-mm).

All UWC Series models come fully-assembled and packaged as plug-and-play cassettes that include the industrial-duty inverter motor, corrosion-resistant rotor, and industrial-grade link drive belt.  Replacement time is typically less than 1/2 hour.

Other UWC Series benefits are:

  • Temperature differential between wet bulb/dry bulb exhaust and supply can be up to 75-percent efficient;

  • Also an ideal OEM market product for most unitary ERV brands;

  • controls are compatible with building automation systems (BAS) and most unitary brand on-board controls;

  • optional surface coatings include anti-microbial, anti-corrosion or anti-stick treatments;

  • Sizes and dimensions are compatible with most ERV brands such as AAON, Valent, Greenheck, ClimateMaster, Lennox, Daikin, Trane and other major manufacturers;

  • Models 52-inches and larger are lighter and easier to handle than same-size polymer wheels that require substantially more heavy-duty, integral support network;

  • Minimal leakage and air bypass due to high quality perimeter brush and face contact seals;

  • and successfully beta site-tested for two years;

The NFPA 90A-certified, UL 900-tested UWC is designed and manufactured in-house by SEMCO to maintain the highest quality control. For more information on SEMCO's desiccant wheels, chilled beams and ERV products, please visit; email; or call 1-573-443-1481.

About SEMCO: Since its founding in 1963 as a sheet metal fabrication company with five employees, SEMCO has built a reputation as a worldwide product innovator in the science of air movement, noise abatement, energy efficiency and indoor air quality with more than 200 employees and more than 200 manufacturer's representatives.  Major product lines include spiral metal HVAC duct, energy recovery equipment, chilled beams, and acoustics equipment. SEMCO is a Fläkt Woods company based in Columbia, Mo. SEMCO operates three manufacturing facilities in Morrilton, Ark., Petit Jean, Ark., and Roanoke, Va. SEMCO also operates an ASHRAE 84-compliant research and development facility dedicated to the innovation of new products for the 21st Century and beyond. For more information, please visit;  email; or call 1-573-443-1481.

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