Sync condensing boilers combine stainless-steel heat-exchanger technology with modulating/condensing combustion to deliver thermal efficiency as high as 98 percent. With models that produce 1.0-, 1.3-, and 1.5-million-Btuh inputs, low-nitrogen-oxide operation, and turndown ratios of 10-to-1, the boilers can serve a range of commercial applications. The boilers' Smart Touch touchscreen control system helps users set up a synchronized green system and allows access to an onboard database of real-time operations data and performance history. Equipped with a built-in cascading sequencer for up to eight boilers, the control system allows the boilers to deliver up to 12 million Btuh of heating capacity. Standard control-system features include outdoor reset, three-pump control, night setback, hot-water generator compatibility, and password security. The boilers feature a space-saving footprint and a direct-vent design with intake and exhaust runs of up to 100 ft. At 58 in. tall and 31 in. wide, the boilers can fit through a standard doorway.
— Lochinvar Corp.
HOBO LEED Monitoring Kits enable users to measure and document boiler/solar hot-water performance, rooftop-HVAC-system efficiency, and indoor environmental quality to help improve building performance and earn credits as specified in the Leadership in Energy and Environmental Design for Existing Buildings Green Building Rating System.
— Onset Computer Corp.
Available in sizes of 2 to 7 tons, Spacemaker Series air conditioners now include a direct-drive fan, environmentally friendly R-410A refrigerant, and energy-saving free cooling.
Available in five models, wall mounted, gas-fired, forced-draft heaters offer an efficiency of 82 percent. The heaters can be installed in the same spot as many older heaters, using the same gas line and vent hole.
— EuroTherm Systems
The USE Controller/Energy Management System uses a building's outdoor and indoor temperatures to control a boiler, rather than a traditional heat-timer system that uses only outdoor temperature to trigger a timed heating cycle. On average, the system reduces fuel consumption by 26 percent.
— U.S. Energy Group
Because of their energy efficiency, Q-Pump heat pumps can help facilities save up to 50 percent on their heating and cooling bills. Able to be incorporated into almost any hydronic loop, the pumps use a four-element refrigeration system that relies on two solenoid valves to redirect refrigerant, eliminating the need for a reversing valve.
— Desert Aire
CXLdp low-pressure transducers are engineered to provide stable, reliable static- or differential-pressure measurement in HVAC comfort-control systems. A small housing and multiple mounting options allow the transducers to be mounted on a DIN rail, conduit, or wall. With a detachable terminal-block electrical connector, it can be installed on a panel without power interruption.
— Ashcroft Inc.
The Element is an industrial-grade fan engineered for the needs of large commercial spaces, such as shopping malls, office buildings, churches, and recreational facilities. It features a direct drive that helps move air over large spaces silently and efficiently, requiring minimal energy and maintenance.
— Big Ass Fans
Rooftop air conditioners
Using environmentally friendly Puron refrigerant, WeatherMaker rooftop air conditioners are available in 3- to 10-ton units. The units can reach a seasonal energy-efficiency ratio of 13 and an energy-efficiency ratio of 11.2, making them American Society of Heating, Refrigerating and Air-Conditioning Engineers- compliant and Energy Star-certified.
— Carrier Corp.
For heating and cooling, iWorX ZV, MV, and FV Series modulating and floating actuation valves can be used in a variety of applications in which accurate control is required, such as hydronic systems, fan-coil units, and reheat on commercial terminal-box units. By accurately controlling flow, the valves reduce sudden changes in supply temperature and provide more even heating and cooling.
— Innovex Technologies
Dedicated outdoor-air systems can exhaust and supply air from 500 to 2,200 cfm, providing 52°F enhanced dehumidification. High-efficiency direct-drive blower packages are controlled by an independent variable-frequency drive for each air stream. The systems can handle 2 to 10 tons of compressor capacity.
Qwik System Flush is a non-toxic, non-flammable, biodegradable refrigeration- and air-conditioning-equipment flush that is effective in removing system-damaging residual oil, moisture, and acid. The flush does not evaporate prematurely, which reduces effectiveness, or contain decafluoropentane and other solutions that can contaminate an environment.
— Mainstream Engineering
The APR-410 control provides full-capacity modulation for all sizes of direct-expansion air-conditioning systems using R-410A non-ozone-depleting hydrofluorocarbon refrigerant. The control continuously and automatically matches air-conditioning-system capacity/output to changing load conditions. As a result, it provides improved humidity control without overcooling a space.
— Rawal Devices Inc.
Solis Flushometers use light to charge an efficient capacitor, providing power even in rooms with occupancy-controlled lighting. The solar panel powers the unit without the need for moving parts in the waterway, creating better hydraulic performance and reduced maintenance.
— Sloan Valve Co.
Standard features of the VersiVent Model VER energy-recovery unit include a high-performance total energy wheel, a high-efficiency centrifugal plenum supply fan, 2-in. double-wall construction, and hinged access doors. Hot-water, indirect-gas, and electric heating options are available.
The Percomax, a direct-contact, natural-gas-fired water heater, is designed to heat water to temperatures as high as 185°F. Cold water enters the direct-contact water heater at the top and is distributed uniformly over the upper surface of a packing of stainless-steel nodules, which make up the heat-transfer zone.
— Sofame Technologies Inc.
Well-suited for new school construction and renovation, Quiet Climate 2 wall-mount heat pumps feature two-stage operation and integrated part-load values as high as 15.0 with a variety of ventilation options for better indoor-air quality.
— Bard Manufacturing Co.
Send product and literature releases to the attention of Megan White, associate editor, HPAC Engineering, The Penton Media Building, 1300 E. Ninth St., Cleveland, OH 44114-1503; e-mail: [email protected]. Electronic submissions are preferred.