Company News


P.O. Box 410, Schofield, WI, 54476, USA

  • 715-359-6171

Latest New Product News from

Architectural and Civil Engineering Products

Wind-Driven Rain Louver features vertical blade design.

Apr 10, 2013

Constructed as 6 in. deep extruded aluminum louver designed with vertical rain resistant blades, Model EVH-660D is certified in accordance with Miami-Dade NOA 12-0418.06 and also passes Miami-Dade TAS 100A wind-driven rain test procedure without requiring damper. Product has AMCA Seal for Water Penetration, Air Performance, and Wind-Driven Rain, passes AMCA 540 Large Missile Impact Standard, and... Read More


Inline Mixed Flow Fan suits low-pressure applications.

Feb 11, 2013

Recommended for low-pressure ventilation applications in office buildings, concert halls, educational facilities, libraries, and parking garages, Model QEI-L is available in 11 sizes for wheel diameters 12–36 and delivers performance ratings up to 40,000 cfm. Design minimizes noise and features flanged connection as standard, with companion flanges available for slip fit connection. Product... Read More

Electronic Components & Devices, HVAC

Plenum Array Fan suits new or replacement air handler applications.

Nov 20, 2012

Housed Plenum Array Model HPA features direct-drive galvanized plenum fan mounted inside sound attenuating housing. Isolators between fan and housing reduce vibration, eliminating need for isolators and gaskets between modules. Available in 10 wheel sizes from 15-36 in. and compact, standard, and large housing options, lightweight unit is designed for fan array installations in air handler... Read More


Heavy-DutyTornado Dampers prevent ductwork collapse.

Oct 02, 2012

Designed to protect against tornados and rapid pressure changes, Models HTOD-330 and -331 are double flanged channel frame style backdraft dampers that close, respectively, in same and opposite direction as normal flow. Products install in ductwork or mount to wall near building exterior and allow for air movement during normal weather conditions. Negative pressure caused by tornado causes... Read More

Green & Clean, HVAC

Laboratory Exhaust Fan helps conserve energy.

Sep 07, 2012

Intended for variable volume or demand-based laboratory ventilation systems, Vektor®-HS features Sure-Aire(TM) Variable Volume Exhaust technology, which incorporates non-invasive flow monitoring system that measures pressure drop across fan's inlet venturi. As airflow varies, SAVVE technology automatically adjusts nozzle discharge area to maintain constant and safe discharge velocity. System... Read More

Mechanical Power Transmission

Damper Actuator helps reduce installation requirements.

Jun 06, 2012

Model FSAF24-BAL enables FSD series combination fire smoke dampers and SMD series smoke dampers to function as balancing damper. This 3-position, 24 V actuator balances airflow in ducts when paired with combination fire smoke or smoke damper, eliminating need for separate balancing damper while also reducing installation requirements. Read More

Controls & Controllers

Digital Temperature Controller automates exhaust fans.

Mar 15, 2012

Digital temperature interlock automatically starts kitchen hood exhaust fans and keeps them running while heat is being generated from cooking appliances. Acting as back-up to manual control, interlock will override switch and start fans once heat is detected to ensure safety in case operator fails to turn on fans manually. Digital controller with LED display that can be remote mounted enables... Read More

Fluid & Gas Flow Equipment

Pollution Control Units clean up kitchen exhaust systems.

Oct 18, 2011

Designed to eliminate both smoke and grease particles, Grease Grabber(TM) Triple Play and Power Play feature control modules that eliminate or reduce odors. Triple Play, with 3-stage mechanical filter arrangement, is coupled with activated carbon panels to remove odor molecules prior to discharging air. Power Play's permanent electrostatic collector section removes grease and smoke particles from... Read More


Remote Balancing Dampers suit space-constrained applications.

Sep 30, 2011

Available in 2 models, Remote Balancing Dampers are suitable for applications where tight spaces make it difficult to access and manually adjust damper and balance airflow. Units use standard RJ11 cable that is run to phone jack-style plug. EZ Balance smart controller can then be plugged into jack to regulate damper's blade position and balance system. Single-blade, rectangular Model RDB-10 comes... Read More


Configurable Ventilator System serves rooftop applications.

Sep 13, 2011

Intended for HVAC systems in commercial or institutional applications, Model RV/RVE fully conditions and controls any mixture of outdoor and return air. Configurable solution, with performance capabilities up to 9,500 cfm, features 2 in. double-wall construction and direct-drive plenum fans. Several heating - indirect gas furnace, hot water, or electric - as well as cooling options - packaged DX,... Read More


Energy Recovery Ventilators utilize digital scroll compressors.

Feb 24, 2011

Models ERCH and VER incorporate digital scroll compressors to improve temperature and humidity control while conserving energy. Featuring integral controller with time-averaging sequence, scrolls are engaged and disengaged at rate which varies in order to match required cooling capacity. Use of digital scrolls for capacity control ensures output air temperatures as precise as 1°F. Digital... Read More

HVAC, Mechanical Components and Assemblies

Fabricated Steel Grille withstands wind-loads up to 248 psf.

Sep 17, 2010

Fabricated of 0.25 in. thick hot rolled steel with inverted V-style blades, FEMA Model FSG-801 protects exterior wall penetrations on FEMA 361 or 320 compliant storm shelters or safe rooms. Unit allows high free area with minimal airflow resistance while providing protection against high wind loads and wind-borne debris. Most frequently mounted in front of louvers on building's exterior, grille... Read More

HVAC, Test & Measuring Instruments

Damper measures and regulates airflow volumes.

Sep 03, 2010

Combining accurate airflow measuring station and low leakage damper into one compact assembly, Air Measuring Damper series measures and regulates airflow volumes to a target set-point. It includes 4 models; AMD-23 with 3 V blade control damper, AMD-33 incorporating fabricated airfoil blade control damper, AMD-42 made of extruded airfoil blade control damper, and AMD-42V having vertical extruded... Read More


Energy Recovery Ventilator features integral heat pump.

Aug 11, 2010

Offering performance from 1,000-10,000 cfm, Model ERCH-HP provides 4-30 tons of mechanical cooling capacity. Integral water source heat pump module is capable of conditioning outdoor air throughout year as it includes both heating and cooling cycles. Licensed to bear AMCA Seal for Air Performance, Model ERCH-HP can serve as dedicated outdoor air unit that provides ventilation for water source and... Read More


FRP Centrifugal Fans have corrosion resistant construction.

Jul 13, 2010

Made of single-width centrifugal blower with backward-curved wheel, model BCSW-FRP fans are available in both belt and direct drive configurations with performance capabilities up to 150,000 cfm and 14 in. w.g. They are suited for highly corrosive airstream applications such as wastewater treatment plants, pulp/paper processing, and metal finishing. Complying with ASTM D4167 and C582 standards,... Read More

Architectural and Civil Engineering Products

Sand Louver carries AMCA seal for air performance.

Apr 22, 2010

Designed to protect air intake and exhaust openings in building exterior walls from wind-driven sand, Model FSL-401 incorporates vertical sightproof blades to separate sand from air stream which is then channeled out at sloped sill. AMCA certified louver can be finished to match any facade. Read More


Fire Smoke Damper provides pressure rating up to 4 in. w.g.

Apr 01, 2010

Featuring high-strength steel airfoil-style blade combined with profile frame design, 3 hr rated combination fire smoke damper model FSD-331 operates with velocity ratings up to 4,000 fpm. Class I leakage rated unit is available in vertical mount with maximum size of 120 x 96 in. Read More


Make-up Air Unit has integral cooling system.

Dec 03, 2009

Model MPX is 100% outside make-up air unit suited for kitchens, corridor ventilation, and areas with contaminated air where energy recovery is not permitted. Featuring 2 in. double-wall cabinet construction, hinged access doors, airfoil plenum fan, and 2 in. prefilters, MPX is designed for cooling capacities ranging from 7-30 nominal tons and airflow ranges up to 10,000 cfm. Air-cooled packaged... Read More


Fire Smoke Dampers are designed for easy access.

Oct 30, 2009

Models GFSD-211 and GFSD-212 are out-of-wall combination fire smoke dampers designed for easy access throughe grille to the damper, closure device, and actuator. Separate compartment houses actuator, allowing for shallow operating depth of 13.5 in. Both models are qualified to velocities up to 2,000 fpm and pressure ratings up to 4 inches wg. Models GFSD-211 and GFSD-212 are available in vertical... Read More


Fan Coil Unit suits multi-story air handling applications.

Aug 05, 2009

Available in 6 sizes with capacities up to 1,300 cfm, Model VSH vertical stack high-rise fan coil unit provides space heating/cooling for hotels, dorms, condominiums, and other multistory buildings. Units are available in concealed/exposed housing and can be configured with 2 or 4 pipe water coils and electric heaters with optional silent contactors. Features include three-speed PSC motor, 1 in.... Read More