Heat pumps

Mitsubishi Electric's CITY MULTI H2i Hyper-Heating INVERTER VRF Heat Pumps maximize energy efficiency and provide better heating performance down to -13°F. Even on the coldest days, a single system can provide year-round comfort. Integrated flash-injection technology cools the INVERTER compressor, allowing it to speed up and produce more heat at lower temperatures. The system delivers 100 percent of rated heating capacity at -4°F and 88 percent of rated capacity at -13°F without the need for a secondary compressor. With extended comfort performance and longer intervals between defrost times, the heat pumps can provide up to four hours of heating in one continuous cycle. Outdoor units deliver full-sized performance with a compact, space-saving design for easier transportation and installation. The INVERTER-driven scroll compressor delivers the precise required amount of comfort to the zones.

Mitsubishi Electric
3400 Lawrenceville Suwanee Road
Suwanee, GA 30024
800-433-4822
www.MitsubishiPro.com
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Thermal-imaging cameras

FLIR i5/i7 thermal-imaging cameras can be used to quickly diagnose problems, improve efficiency, and ensure worker safety. Ergonomically lightweight, the cameras are heavyweight performers. Both models offer remarkable infrared-image quality, with 2-percent thermal accuracy, and a large 2.8-in. color display. The FLIR i5 features 80-by-80 pixel resolution, while the FLIR i7 features a RESNET-compliant 120-by-120 pixel resolution. The FLIR i5 offers a center-spot measurement mode, while, for extensive job-site analysis, the FLIR i7 adds two measurement modes: area (minimum/maximum) and isotherm (above/below). The entry-level FLIR i5 retails for $1,595, while the FLIR i7 retails for $1,995. Both cameras capture infrared images in FLIR's radiometric JPEG format, which permits users to rely on only one image file for temperature analysis and reporting. The images can be shared easily in e-mails, Word documents, etc.

FLIR Systems Inc.
285 Bear Hill Road
Waltham, MA 02451
800-464-6372
www.flir.com
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Centrifugal modules

Compact and easy to install, radial motor impellers with backward-curved blades feature integrated connection components for straightforward, simple operation. A pre-set inlet nozzle guarantees flawless aerodynamic and acoustic operation, while the pre-assembled operating capacitor and plug connector on alternating-current (AC) units eliminate incorrect wiring. Available with impeller diameters ranging from 190 to 225 mm, Compact Centrifugal Modules come in AC, direct-current, and electronically commutated technology. Applications include refrigeration, home ventilation, and industrial facilities.

ebm-papst Inc.
100 Hyde Road
Farmington, CT 06034
860-674-1515
www.ebmpapst.us
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Backflow preventers

Wilkins 375 Series Reduced Pressure Principle Backflow Preventers provide the best backflow solutions available in the marketplace with the lowest life-cycle cost of similar valves. Features include a replaceable/reusable check-valve housing made of composite materials that resist corrosion, a short lay length that allows easy replacements of competitors' valves, test cocks facing up for universal installation with easy access for testing, and a special blowout/flush fitting (BOF) for winterizing and startup flushing. The removable housing decreases system downtime and is repairable without removing the valve from the system. This feature makes repairs and maintenance simple and cost-effective while reducing the number of parts needed on hand. The BOF is unique to the Wilkins 375, making system winterizing and startup flushing easy to perform.

Zurn Industries LLC
1747 Commerce Way
Paso Robles, CA 93446-3696
877-222-5356 or 805-226-6297
www.zurn.com
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Desiccant dehumidifiers

Designed primarily for low-dew-point applications, desiccant dehumidifiers with EcoPurge recover energy from the hottest segment of the rotor and use the heat to reduce energy costs associated with the regeneration process. A closed-loop design preconditions the process segment of the rotor, which results in improved grain depression and often allows an engineer to reduce the size of the system for a smaller footprint and lower initial costs. Additionally, the dehumidifiers significantly reduce the temperature of process outlet air, resulting in reductions in post-cooling costs.

Bry-Air Inc.
10793 St. Rt. 37W
Sunbury, OH 43074
877-379-2479
www.bry-air.com
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Data-center in-row cooling units

Self-contained InRow SC data-center cooling units (300 mm, 200 to 240 v, 60 hz) closely couple cooling with the information-technology (IT) heat load. This design prevents hot-air recirculation while improving cooling predictability and allowing for a “pay-as-you-grow” environment. The entire line of InRow Direct Expansion products is designed to meet the diverse requirements of closets, server rooms, and data centers. IT operators looking to improve efficiency or deploy higher-density equipment will benefit from the products' modular design. The intelligent controls of the InRow Direct Expansion products actively adjust fan speed and refrigerant flow to match the IT heat load, maximizing efficiency and addressing the dynamic demands of IT environments.

APC by Schneider Electric
132 Fairgrounds Road
West Kingston, RI 02892
800-877-4080
www.apc.com
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Commercial heat pumps

Carrier Corp. has introduced WeatherMaster Series Packaged Rooftop Heat Pumps with Puron refrigerant. With a seasonal energy-efficiency ratio of up to 15.8 and an energy-efficiency ratio (EER) of up to 12.8, the heat pumps deliver the highest EERs in the industry for 3- to 5-ton, three-phase commercial-package heat pumps. Features include precision-designed coils with thermostatic-expansion-valve metering devices for cooling operation of up to 125°F and an integrated refrigerant accumulator on each refrigerant circuit. Exceeding 2010 Energy Star standards by up to 16 percent, the new units reduce operating costs and qualify for many utility rebates. As with all Carrier WeatherMaster rooftops, the heat pumps also maintain a consistent footprint with past models, enabling direct replacement on existing curbs dating back to the late 1980s.

Carrier
Carrier World Headquarters
One Carrier Place
Farmington, CT 06034-4015
800-227-7437
www.commercial.carrier.com
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Air-conditioning systems

LG's Multi-V air-conditioning systems combat insufficient payback with their unique HVAC systems, which offer commercial buildings and lodging and hospitality environments a combination of high energy efficiency and easy temperature control. Built around LG's inverter compressors, the Multi-V series delivers one of the highest energy-efficiency ratios available in the variable-refrigerant-flow (VRF) equipment category, along with low sound operation. Using VRF technology, the Multi-V system provides businesses greater temperature control, avoiding unnecessary energy usage in unoccupied rooms. LG's outdoor units also incorporate a modular design that can be scaled to suit the needs of a particular facility, including high-rise buildings, high-end hotels, luxury-resort facilities, commercial buildings, and condominiums.

LG Commercial Air Conditioning
11405 Old Roswell Road
Alpharetta, GA 30009
www.lghvac.com
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Water heaters

SHIELD condensing gas water heaters are equipped with an advanced stainless-steel heat-transfer system located outside of the tank, ensuring the same high efficiency and low operating costs throughout the life cycle. With inputs of up to 500,000 Btuh, 96-percent thermal efficiency, and storage of up to 125 gal., the water heaters have everything it takes to provide green operation without the risk of lime-scale buildup. Ideal for green commercial buildings, the water heaters provide low-nitrogen-oxide (NOx) ratings compatible with the most stringent air-quality standards. The NEG/REG sealed combustion system allows the unit to operate with inlet-gas pressure as low as 4 in. of water column and delivers a quiet, environmentally friendly supply of heat. For added flexibility, the water heaters offer rooftop or sidewall venting options, including conventional, direct vent, and concentric direct vent using polyvinyl-chloride or chlorinated-polyvinyl-chloride pipe with vent runs of up to 100 ft.

Lochinvar Corp.
300 Maddox Simpson Parkway
Lebanon, TN 37090
615-889-8900
www.lochinvar.com
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Infrared heaters

Two-stage infrared heaters are available in high-intensity-ceramic (SunTwin) and low-intensity-tube (True Dual) types. The SunTwin is offered in three sizes, with inputs for natural and propane gases. The True Dual has a patented design that provides precise matching of air/gas flows at high- and low-fire stages and is offered in lengths from 20 to 70 ft, inputs of 65 to 200 mbh, and three different tube selections (black steel, aluminized, or stainless steel). Both types of heaters offer an even greater savings in energy costs when compared with a standard single-stage infrared heater. The heaters provide quicker recovery from drastic ambient-temperature changes and can maintain more precise control of inside temperatures without the “overshooting” of a single-stage unit. Applications include warehouses, auto dealerships/service centers, airplane hangars, fire stations, sports facilities, manufacturing plants, and maintenance facilities.

Solaronics Inc.
704 Woodward Ave.
Rochester, MI 48307
800-223-5335
www.solaronicsusa.com
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Radiant heating/cooling system

A radiant-heating/cooling-dedicated product, LOFlo Mixing Block (LMB) was designed to work with Taco's LoadMatch single-pipe system along with active-passive chilled beams and a 100-percent dedicated outside-air system to supply latent cooling. The LMB-LoadMatch system provides building owners and operators with an injection-pumping system that is more energy-efficient, lowers first costs, eliminates balancing problems, simplifies commissioning, reduces callbacks, and maximizes occupant comfort throughout a building space. LMB consists of a variable-speed injection circulator, a constant- (or variable-) speed zone circulator, and common bridge piping. It has only four piping connections, which reduces installation time and space needed. LMB can be used in heating and cooling systems to significantly reduce system water flow.

Taco Inc.
1160 Cranston St.
Cranston, RI 02920
401-942-8000
www.taco-hvac.com
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Cottonwood Filter Screens

Designed to protect condenser coils, air-handling units, cooling towers, and other mechanical equipment from fouling caused by airborne matter (insects, cottonwood seed, leaves, etc.), Cottonwood Filter Screens are engineered for optimal airflow and low static-pressure impact. Made with a heavy-duty, fiber-reinforced outer binding and non-stick vinyl-coated polyester mesh with rip-stop characteristics that prevent running or fraying, the filters are ultraviolet-, flame-, mold-, and mildew-resistant, with a service life of up to 15 years. They can be cleaned without removal using a broom, brush, or garden hose — even rain will rinse them clean — eliminating power-washing and cleaning chemicals. They can help reduce energy costs by up to 30 percent and help building owners earn LEED credits in multiple categories.

Air Solution Co.
West Chester, OH 45069
513-860-9784
www.airsolutioncompany.com
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