LG Electronics USA introduced its single-phase VRF 5-ton heat recovery system for the U.S. market as part of the company’s expanded line-up of energy-efficient LG Multi V S outdoor units. Ideal residential and light commercial installations, the LG Multi V S lineup now includes 2-ton heat pump and 5-ton heat recovery models designed to provide simultaneous heating and cooling even in extreme weather.
The new Luxaire® LX Series 14 SEER THE split system heat pumps and TCD air conditioners from Johnson Controls support 3-phase, 230/460-volt light commercial applications. The company says the air conditioners and heat pumps have been proven in field trials and Luxaire’s five-year accelerated testing that incorporates tested components and CSA and UL safety certifications. The company also says the products feature robust condenser coils constructed from durable copper tubing and enhanced aluminum fins for optimal heat transfer.
RAE Coils announced that it is manufacturing replacement and OEM evaporative condensing tube bundles. The tube bundles are a critical component of the highly efficient condensing units originally manufactured by Mammoth’s Ultraline and Penthouse brands. When compared with air cooled technology, the company says this product can result in a reduction of up to 35% in annual operating costs.
CoolIT Systems Inc. has expanded its Rack DCLC™ product line with the release of the new CHx80 Heat Exchange Module (CHx80). This next generation liquid-to-liquid heat exchanger provides cooling capacity with N+1 reliability to manage challenging, high density HPC racks.
A new packaged heat pump from the Coleman brand of Johnson Controls is available in 3- to 8.5-ton capacities. Its exact-fit replacement design matches footprints of other manufacturers’ units and the company says it reduces installation time, cost, and complexity by eliminating the need for a curb adapter.
Laars has introduced the new Mascot ST condensing tankless water heater. The natural gas or LP-fired unit offers an ultra-high 0.96 EF (energy factor) efficient stainless steel heat exchanger, full 10:1 modulation, and is available in a 199 MBH size.
Roberts-Gordon LLC recently reintroduced the GORDONRAY® DF two-Stage, unitary low-intensity infrared heater. Due to the ability to fire at two distinct rates, the company says its GORDONRAY® DF provides energy efficient heat that can effectively adjust to sudden high heat-loss conditions or economically maintain steady comfort levels.
The York Direct Fit rooftop replacement solution from Johnson Controls now includes a full line of 3- to 8.5-ton packaged heat pumps. Like other products in the Direct Fit series, the company says its heat pumps feature an exact-fit replacement design that matches the units to footprints of other manufacturers’ units and reduces installation time, cost, and complexity by eliminating the need for a curb adapter.
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.
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.