Laars Heating Systems now offers a 150- to 2,500-gallon electric water heater from 12 to 360 kW. The systems feature 150 psi ASME code glass lining, ASME temperature and pressure relief valve, internal fusing (above 120 amps), and magnesium anode rods.
Schaffner EMC introduces the ECOsine® Active 3420, a harmonic filter which provides harmonic compensation in real-time for industrial and commercial environments. With a capacity of 30 to 300A, operating at 200-480VAC (+/- 10%), the connection-ready 3420 (3-wire) cabinet models include forced air cooling and internal liquid cooling (200-300A), for the power electronics.
Nortek Global HVAC introduced a new line of highly-configurable Reznor® light commercial packaged rooftops. They are available in 6, 7.5 and 10 tons. The company says the rooftop units can be configured at the factory so consultant engineers or design-build contractors can get the exact spec unit they need delivered to the job site. With over 35 options per tonnage size, there are over 750,000 unit configurations available. A quick-ship option is available out of the factory in Dyersburg, Tenn.
PennBarry has released the Zephyr Revolution, a line of precision ceiling, inline, and wall-mount exhaust fans for the commercial and residential airflow management market. The Zephyr Revolution will be available in the Spring of 2017.
Viessmann Manufacturing Company announced the addition of the new Vitocrossal 300, CA3 gas-fired boiler. The company says the boiler is the ideal solution for commercial and industrial applications with multiple venting options and seamless integration in building management systems.
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.
Viega’s new 45-degree elbows for Viega PEX Press systems allow users to install larger tubing with Viega’s press technology, according to the company. The new, polymer PEX Press 45-degree elbows are available in 1.5-in and 2-in sizes. The elbows feature Viega’s patented Smart Connect® feature, which allows water to flow past an unpressed fitting.
Optimum Energy has released its new patented OptimumEDGE™ product. The company says the product is a quick-start HVAC optimization solution that shaves energy use by 13% on average — and cuts water use as well — without affecting building operations or occupant comfort.
Lochinvar is introducing an addition to its Power-Fin line with the Power-Fin High Efficiency Commercial Boiler. This product expansion of the original line, which launched in 1986 and just celebrated its 30th anniversary, now offers an input capacity from 2.5 to 5 million Btuh, more than doubling its previous capacity. The enhanced performance comes from a heat exchanger that features a double row of swept fins that delivers more than twice the output of the original model.
Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned. Read more in April issue