Hot Dawg H2O hydronic unit heater is an extension of Modine’s gas/propane Hot Dawg line. It has no moving external parts, making it well-suited for garages or warehouses. The unit’s design and low profile allow it to be rotated for either horizontal or vertical air discharge. Hot Dawg H2O comes in two models: the HHD30, which has an operating range of 23,700 to 39,200 Btuh, and the high-capacity HHD45, which has an operating range of 23,900 to 56,800 Btuh. —Modine
ArmaTuff outdoor thermal insulation is designed to provide an aesthetic, durable, and low-maintenance solution for thermal and UV protection of outdoor ducts, tanks, vessels, large pipes, and fittings. Laminated with a heavy-duty white embossed 12-mil, 13-ply aluminum and polyester cladding, ArmaTuff is designed to provide all-weather protection; resistance to punctures, tears, dents, condensation, and energy loss; and eliminate the need for jacketing and painting. The mold-resistant, flexible elastomeric insulation prevents condensation- and moisture-wicking, and provides resistance to UV, ozone, acid rain, and most industrial pollutants. It is available in 36-in. by 48-in. sheets and in rolls 48-in. wide, in 1-, 1½-, and 2-in. thicknesses. —Armacell
Cambridge SA-Series blow-through direct gas-fired space heaters use the same technology as the larger ultrahigh efficiency Cambridge S-Series, but are sized for smaller applications. Utilizing 100-percent outside air for efficient direct gas-fired heating, the heaters employ a proprietary stainless-steel burner mounted downstream of the blower. The high-velocity blower achieves a 10-to-1 induction mixing ratio that minimizes stratification and increases throw. The unit can also be used to provide summer or winter ventilation. The SA-Series achieves 100-percent combustion efficiency and provides 160°F maximum allowable output temperatures. —Cambridge Engineering
Hartzell-FLOW fan-selection software allows engineers to make fan selections, generate fan curves, and view and download 2D drawings and 3D fan models. The program contains information on thousands of different industrial fans for a variety of markets, as well as fan options and the availability of special coatings. The models and drawings are configuration-specific and include many commonly selected accessories. —Hartzell Air Movement
The 6000, 7000, 8000, and 9000 Series of the HumidIcon combination digital-output relative-humidity and thermal sensors are now available. Primarily targeted for medical, HVAC, and industrial applications, these sensors are designed to offer long-term accuracy, stability, and reliability, plus true, temperature-compensated digital I2C or SPI output. HumidIcon sensors need no individual testing and calibration, as there is no part-to-part variation in accuracy, and their long-term stability helps support system uptime by eliminating the need to service or regularly recalibrate them in the application. —Honeywell Sensing and Control
Mini-split systems that have been added to the Luxaire Acclimate and LX Series product lines are designed to provide building owners with heating and cooling options that do not involve installing an air handler or ductwork. They are well-suited for computer server rooms, where temperatures must be maintained even in winter, when other parts of the building are not being cooled. Available in single-zone units for an individual room or multizone models that connect a single outdoor unit to as many as five indoor units. Seasonal energy-efficiency ratios of the units range from 16 to 27, and heating seasonal performance factors are as high as 10. —Johnson Controls
McGraw Hill Education has published a graduate-level textbook, "Modern Geothermal HVAC: Engineering and Control Applications." The new textbook is a follow-on to the "Geothermal HVAC: Green Heating and Cooling" undergraduate textbook, which was published in 2011. It is designed for graduate-level students and industry professionals who wish to deepen their knowledge of geothermal applications and advanced hydronics. The textbook contains 15 chapters, with topics ranging from geothermal open- and closed-loops and standing well methods and applications to HVAC basics, equipment, and the latest developments in radiant cooling with chilled beams, variable-speed pumping, and controls. The book also includes the latest information on geothermal rebates, incentives, and renewables legislation. "Modern Geothermal HVAC: Engineering and Controls" can be purchased on Amazon.com. It is also available as an e-book.
The Wringer natatorium dehumidification and energy-recovery system uses dry outdoor air, when conditions allow, to control the indoor environment. The system uses air-to-air energy recovery to reduce supplemental heating and cooling requirements and provide pre-cooling and reheating of supply air during periods requiring mechanical dehumidification. By recovering energy from the exhaust air using an air-to-air heat exchanger, the amount of time that the space can be conditioned with outdoor air only is increased substantially. Refrigeration compressors need run only a fraction of the time that would be required with a conventional pool dehumidifier. —Munters
The EcoInsight intelligent thermostat has more than 125 configurable settings to control the efficiency of HVAC systems. It calculates room comfort by aggregating data such as time of day, solar load, brightness, humidity, and occupancy patterns. The EcoInsight is equipped with a ZigBee transceiver to create a wireless mesh network that communicates with a myriad of wireless building-control devices and the cloud-based EcoCentral Virtual Engineer Command Center. The EcoSmart network also can be fully integrated with BACnet control devices and equipment. —Telkonet
Style 107 QuickVic rigid couplings for HVAC piping systems are now available in 10- and 12-in. sizes. The Style 107 family of couplings is designed to expedite project construction by reducing installation steps and requiring only standard hand tools for assembly. Installation-ready technology features no loose parts and no need to disassemble the coupling before installation. Style 107 rigid couplings are available in sizes ranging from 2 to 12 in. and join standard roll-grooved and cut-grooved steel pipe. The Style 107 family accommodates pressures ranging from full vacuum up to 750 psi, depending on pipe diameter and wall thickness. —Victaulic
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