The Humiditrol dehumidification system for split systems improves humidity control and reduce the spread of allergens. High humidity levels, rather than room temperature, activate the dehumidification cycle to help improve indoor-air quality. If a room's or building's humidity level exceeds the dehumidification system's set point, the SignatureStat control activates the system, which works with the heating and cooling system to remove excess moisture by reheating cooled air. Humidity is removed at the evaporator coil. By reducing humidity, this reheat design helps control the growth of mold, mildew, and dust mites, which have been linked to allergies and asthma. Available as a field-installed accessory, the dehumidification system can be matched with three-phase S-Class and T-Class 3- to 5-ton R-410A commercial air-conditioning or heat-pump split systems.
Useful for small businesses, Payne heat pumps deliver cooling efficiency with a seasonal energy-efficiency ratio of 13 and heating efficiency with a heating seasonal performance factor of 7.7. Copper tubing and aluminum fin coils in the units result in quiet, energy-efficient comfort and provide heat transfer for heating and cooling.
— Payne Heating and Cooling
Rotary control valves
K-Max rotary control valves work on clean, dirty, viscous, corrosive, abrasive, and high-pressure/temperature fluids, liquids, and gases. The valves have bidirectional flow capacity and are available in sizes of 1 to 8 in.
— Leslie Controls Inc.
Whether installed new or retrofitted in place of a standard urinal, one low-water-consumption EcoVantage Pint urinal can save up to 30,000 gal. of water and about $200 in operating costs per year.
Able to graph trends and display statistics, Fluke 1523 and Fluke 1524 handheld reference thermometers are for platinum resistance-thermometer, thermocouple, and thermistor temperature measurement. The single- and dual-channel models feature components and circuitry to put lab-quality measurement within reach of field technicians and engineers.
— Fluke Corp.
Infrared tube heaters
Available in natural- and propane-gas models, PTS/PTU Series positive-pressure low-intensity infrared tube heaters come with a choice of one- or two-stage input controls for flexibility and an enclosed burner box that places power, thermostat, and gas connections in one location for easier installation and maintenance.
The VH7200 series of humidity controllers can control commercial humidification and dehumidification equipment with accuracies of +/- 3 percent. Features of the family of communicating and non-communicating controllers include a backlit digital display, digital service inputs for local equipment monitoring, and outdoor reset capability.
— Viconics Inc.
Evacuation speakers and strobes
A variety of mounting options and available accessories allow SpectrAlert Advance speakers and speaker strobes to be installed in almost any application. The speakers feature a plug-in design that reduces ground faults during the installation process.
— System Sensor
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.