Greenheck has added two new models to its line of high-volume low-speed (HVLS) fans. Model DS-3, a three-blade HVLS fan for large commercial and industrial spaces, offers capacities up to 164,900 cfm and is available in 14- to 24-foot sizes. Model DC-5, a five-blade HVLS fan featuring a lightweight design to complement office spaces, restaurants and more, offers capacities up to 54,900 cfm and is available in 8 -to 14-foot sizes.
A. O. Smith launch of its Commercial Heat Pump Water Heater (CHP-120) for light commercial applications such as restaurants, schools, retail buildings or any facility which would traditionally use a standard commercial electric water heater.
EVAPCO has introduced the newest addition to its ESW closed-circuit evaporative cooler line, the single cell, 14-by-22-foot “Big Box” ESW4 — now with up to 40% higher capacity than the 12-by-18-foot ESWB. The ESW4 is offered in more than 130 models with capacities between 270-670 nominal tons, and with fan motor sizes of 20-100 hp.
Greenheck says it has expanded its line of Dedicated Outdoor Air Systems (DOAS) for high percentage and 100 percent outside air. Pre-engineered rooftop ventilator models RV-110 and RVE-180 with energy recovery offer capacities up to 18,000 cfm, up to 70 tons of packaged cooling, and 1,200 mbh indirect gas-fired heating.
Armstrong Fluid Technology has developed ADEPT Select, a new online selection software for engineers and contractors who need to size and select Armstrong solutions. ADEPT Select includes the broad range of Armstrong solutions and services and is compatible with hand held devices.
Friedrich is now offering its VRP® (Variable Refrigerant Packaged) Heat Pump system in a larger three-ton size. Originally available in one or two-ton capacities typically used for lodging and hospitality properties, Friedrich is debuting the larger capacity VRP as a solution for multi-family and other light-commercial applications.
Cooper&Hunter added a new series to its current heat pump line-up with single-zone applications. The new Dakota series aims to ensure consistent warm comfort during extreme climate and the condenser heat output capacity allows the unit to work efficiently as a primary heat source even if the temperature drops to a sub-zero level of minus 22ºF.
Danfoss says it has engineered a solution that safely controls hot gas injection with the ICSH Dual Position Solenoid Valve. Complying with the latest IIAR safety recommendations for soft gas applications, the ICSH Dual Position Solenoid Valve provides a gradual, time-controlled opening for a smooth pressure build-up in the evaporator before it opens the flow to 100% for full defrost.
Carrier announced the commercial availability of its AquaEdge® 19DV in North America. The centrifugal chiller features Greenspeed® intelligence and a low global warming potential (GWP) refrigerant R1233zd(E), which has a GWP of ~1. Carrier officials said the AquaEdge 19DV has an efficiency that is more than 40% higher than ASHRAE® 2016 guidelines, has low sound, and is capable of series counterflow configurations.
On Demand Back-up power has become almost as important as primary utility service, and in many cases a necessity. This has caused a wide variety of organizations to consider adding or upgrading back-up power to their existing facilities, or including them as a requirement for new buildings. When a utility disruption occurs everyone expects the back-up generator to start and run flawlessly as long as necessary, whether for thirty minutes or 30 days. However, while simple in principle, different applications place different demands and requirements for back-up power systems.
On Demand In this segment of our webinar series, we will examine the issues of fuel autonomy, storage capacity, and other related topics to consider when specifying, selecting, and installing an emergency backup power system.
Engineered Systems magazine’s September 2019 issue questions the need for multiple building codes that cover the same subjects, examines the dos and don’ts of power systems for critical facilities, offers tips on how to select the proper centrifugal pump circuit flow controls, and much more.