A new line of dedicated outside air systems (DOAS) from the YORK® brand of Johnson Controls includes a range of 100% outside air units and mixed air units. With heat pump operation and water source operation, as well as a hot water heat option, the new line of air systems delivers more combinations of heating and cooling. The systems also feature an internal energy recovery wheel that pre-conditions outside air and reduces heating and cooling loads by transferring energy between the exhaust airstreams.
Extech Instruments introduced the Extech MN62-K, a kit that includes Extech’s MA62 True RMS digital multimeter and the DV23 AC voltage detector. The company says the kit is optimized for electrical installations and repairs in residential or commercial wiring, HVACR work, and plant maintenance.
Power management company Eaton announced the launch of its heavy duty safety switches with surge protection, the latest in its portfolio of switching devices. Combining Eaton’s safety switches with integrated surge protective devices (SPD) courtesy of the Eaton SP1 and CVX series, the company said this packaged solution provides endusers with better performance than externally mounted devices, resulting in a completely wired, UL®-listed solution and better protection for connected equipment.
Quantech™ has added QCC2 and QCC3 air-cooled, scroll-compressor condensing units for applications ranging from 15 to 160 tons to its portfolio of ready-to-ship products. The condensing units are designed for pairing with indoor air handlers using direct expansion (DX) evaporator coils. Quantech QDC condensers and QDCF fluid coolers are also available for air conditioning and refrigeration applications as high as 2,890 MBH.
Haier Ductless is launching a new ductless series designed for light commercial installation as well as large residential applications. The FlexFit Pro series is available from 24,000 Btu to 48,000 Btu.
SPX Cooling Technologies has launched its new Recold® LC Evaporative Condenser. The condenser design reduces refrigerant charge by up to 40% and lowers fan energy consumption by up to 50% compared to conventional evaporative condensers, according to company officials.
Trane announced the availability of its XR16 low profile side discharge air conditioning unit for split ducted systems. This high-performance, low-profile unit features a side discharge, making it ideal for difficult-to-install applications or in tight space requirements where vertical discharge units prove less than optimal.
PennBarry has expanded its Direct Drive Dynamo centrifugal fan line by including models up to a 24-in wheel diameter and Gplus (Green Plus) EC motor options up to 2 hp. These additions will be available to order in June 2017.
Automated Logic Corporation (ALC) has expanded its suite of optimization solutions for the WebCTRL® building automation system to include a new chilled water system optimizer. The new WebCTRL chilled water system optimizer minimizes the energy use of the entire chilled water system in a commercial building, including AHUs, fan coils, and other chilled water distribution equipment.
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.