At HVAC Comfortech 2010, 12 products were recognized as Product Showcase Award winners. Judges took into consideration the ease with which HVAC contractors can apply the technology, and the technical value of the product or service to the HVAC industry. We'll feature these products each month in upcoming issues of Contracting Business. This month, we’re featuring Rotobrush's aiR+® Air Duct Cleaning System , the winner in the IAQ category. For additional information on any of the products listed here, circle the appropriate number(s) on the reader service card at the back of this issue or visit www.contractingbusiness.com/freeinfo.html.

Rotobrush Goes Wireless With Rotobrush aiR+®
Rotobrush® International LLC, the market leader in air duct cleaning, went wireless with its popular Rotobrush aiR+® Air Duct Cleaning System, adding another level of freedom to the portable and modular system. With a pod that lifts out of an easily transportable carrier, and no controller cords, the Rotobrush aiR+® system offers contractors unsurpassed ease of use. Other valuable features include:

• Rotomolded carrier and removable pod made of thick, high quality polypropylene for greater durability, yet lightweight enough for easy one-person use.
• A redesigned air path resulting in increased vacuum power compared to the former SCSR model for easier removal of even the heaviest build up in air duct systems.
• A rotating cable enclosed within the hose for safe use in every type of duct application.
• A brush system that rotates at 450 rpm.

www.rotobrush.com
Circle 145

REGULAR PRODUCTS

Instruments Introduces new IAQ Monitor
The AQ100 from E Instruments International is a hand-held, highly sensitive, and extremely accurate indoor air quality (IAQ) monitor. Functions include carbon dioxide CO2 measurement and ambient temperature, unit selection, and minimum and maximum values. CO2 measurement range is from 0 to 5,0000 ppm. Ambient temperature range is -4F to 176F. The unit is well-protected by a shock-proof housing.
e-inst.com
circle 146

Software Features Safety Manager Module
Maxwell Systems, Inc., has released Maxwell Systems™ ProContractorMX™ version 2.7, which offers valuable new capabilities to construction companies of varying sizes and disciplines across the industry.

With the 2.7 version, the construction management software solution delivers a new safety manager module, and new tools to increase takeoff speed and accuracy, comply with OSHA safety regulations, easily manage equipment maintenance, simplify processes, and eliminate redundancies. Features include a new OSHA Safety Manager module, which allows contractors to easily and properly meet specific OSHA requirements, as well as reduce costs and improve competitive edge with a comprehensive set of jobsite safety tools and consulting services.

An equipment maintenance feature allows tracking of work codes and service intervals (such as miles and hours) to help minimize the costs associated with equipment repairs and to keep equipment active at jobsites.
maxwellsystems.com
circle 147

Zone Valve Uses Microcircuit Logic to Control Fluid Flow
The new Zone Sentry zone valve by Taco enhances the overall performance of any zone valve system, sources say.

The Zone Sentry's patented technology uses a microcircuit-based logic to control a gear-driven electronically-actuated ball valve to control fluid flow. The advanced design uses 93% less energy than common zone valves while also delivering greater flow capacity, shutoff pressure rating, ease of installation and diagnostics, and the number of valves (12) that can be used on a standard 40VA transformer.

Ideal for use with a wide variety of heating and cooling applications, Zone Sentry valves were designed primarily for baseboard, fan coil, radiator, convector, heat pump and radiant applications. The valves are available in ½-in., ¾-in., and 1-in. sizes and draw only 1.44 watts, making them a high efficiency addition to residential and light commercial applications.
taco.com
circle 148

Filter Curbs Feature All-Welded Construction
Thybar filter curbs are quickly manufactured to precise specifications by Thybar Corporation, Addison, IL, and most are shipped fully assembled. Advanced laser technology offers the tightest tolerances and superior construction at a competitive price. Each filter curb is custom manufactured due to the varying specifications of rooftop units and roof configurations. According to company sources, delivery is usually within two weeks after receipt of the order.

Filter curbs feature all welded construction, factory insulated walls, integral filter rack and access door for servicing filters. Options include a built-in roof pitch, extra height for installation of sound traps beneath the unit, and a pressure treated wood nailer.

Most filter curbs are shipped to the job site in one piece if trucking permits. If curb can’t be shipped as one piece, all corners are welded and the number of pieces shipped is kept to a minimum.
thybar.com
circle 149

New Differential Pressure Transmitter by Dwyer
Dwyer Instruments, Inc., announces the release of its new series 677B differential pressure transmitter. Series 677B differential pressure transmitters are designed to measure pressures as low as 0.1 in w.c. with ±0.4% accuracy. Use Series 677B for building energy management systems, environmental pollution control, oven pressurization, lab and fume hood control, HVAC and VAV applications. The transmitter features 15 psid overpressure, reverse polarity protection and EMI/RFI protection. Internal regulation permits use with unregulated DC power supplies. The NEMA 4 housing allows for versatile mounting locations and integral mounting tabs simplify installation.
dwyer-inst.com
circle 150

Advantix Systems Introduces DuTreat Narrow Unit
Advantix Systems's energy efficient dehumidification and cooling solutions use liquid desiccant technology to simultaneously cool and remove humidity directly from the air, delivering energy savings of 30 to 50%, sources say.

Previously available for just large commercial and manufacturing applications, Advantix Systems' product line has expanded to include the DuTreat Narrow, a smaller version of its innovative DuCool unit that can fit through tight clearances and be easily installed in a variety of compact spaces, including fitness centers, nursing homes, medical centers and schools.

The DuTreat units operate using electricity alone and require minimal installation. Because the units are narrow enough to roll through doorways, the DuTreat is a new solution for facilities with limited space that have struggled with humidity, mold remediation, and air quality.

Specific features of the DuTreat Narrow system include:

• Units range in weight from 495 lbs. to 525 lbs.
• Unit dimensions reach a maximum of 62-in. long and 40-in. wide; height is 44-in. tall.
  

advantixsystems.com
circle 151