Carrier has released its newly designed variable air volume (VAV) WeatherExpert™ 48/50LC 6- to 23-ton packaged rooftop units. The newly designed WeatherExpert VAV models, available from 23 tons down to 6 tons, use a dedicated i-Vu® controller that links communication between the system zone terminals and the unit to efficiently adjust the air flow and compressor stages that are required.
Nidec Motor Corporation (NMC) has launched a new family of variable speed products, which the company says offers product compatibility for a true system solution. With NMC’s ACCU-Series™ product line, customers can match a U.S. MOTORS® brand inverter duty motor with an NMC drive or panel or purchase integrated motors and controls. These products are solution driven and are designed to be used together as a system.
Mil-Ram has released its new TA-2100 Gas Detectors with graphics display. The new product detects toxic gases, oxygen, lower explosive limits (LEL), hydrocarbons (HCs), volatile organic compounds (VOC), and more.
RectorSeal® Corp. has introduced the SS1 Directional Cleanout Tool for clearing clogged debris from 3/4-in primary and secondary condensate drain lines of all air conditioner brands and sizes. The tool uses RectorSeal's Safe-T-Switch® SS1 inline overflow/shutoff switch body or any condensate drain 3/4-in PVC inline tee as an access cleanout fitting.
The new Sensaphone® Pressure Sensor is ideal for measuring and detecting loss of boiler pressure in hot water systems at large facilities including hotels, schools, hospitals, universities, and housing communities.
Advanced Cooling Technologies, Inc. (ACT) has launched its HSC, HPC, and LNC series of sealed enclosure cooler products. Sealed enclosure coolers are used to dissipate heat inside enclosures or cabinets that house and protect electrical/electronic equipment from harmful environments.
DriSteem has developed a new wetted media system with five patent-pending technologies. The DriSteem Wetted Media System provides evaporative cooling and humidification for a wide variety of applications while taking advantage of the free cooling and energy savings.
Nu-Calgon has launched Nu-Solve NR, a no-rinse cleaner designed to remove grime on the condenser coils of air conditioners and refrigeration systems. A ready-to-use non-foaming cleaner, Nu-Solve NR does not require a water rinse, which the company says makes it ideal for rooftops, cellular towers, and other areas where water availability is an issue. Nu-Solve NR’s detergent-based formula is safe on plastic, metal, and rubber materials, said company officials.
By diverting harmful VFD-induced shaft voltages safely to ground, AEGIS® PRO Series Rings protect large AC and DC motors from bearing damage. Available for motor shafts to 30-in diameter, AEGIS® PRO Series Rings are specially designed for high-current applications such as generators, turbines, and medium-voltage motors.
Why was one floor’s laboratory ventilation failing to keep up, when it was even the closest floor to the rooftop fans? Some system sleuthing led two engineers to a fitting conclusion. Read more stories in May Issue 2017.