Lennox has expanded its Energence® rooftop unit line with new ultra-high-efficiency models that the company says are the most efficient, lightest, and quietest rooftop units in its class. Energence units feature efficiencies of up to 21.5 IEER and 13.9 EER resulting in low operating costs and service.
‘Early Retirement’ Provides Rebates for Replacing Old Rooftop Units
May 12, 2014
Southern California Edison (SCE) has announced the addition of a new incentive for commercial contractors participating in its HVAC Optimization program. Called “Early Retirement,” for a limited time contractors can earn rebates for the immediate replacement of qualifying old — but still operational — rooftop HVAC units.
Accepts Demand Response Load Limit Factor Signal from Any Third Party’s Demand Response Controller
March 7, 2014
Bes-Tech Inc. has announced a demand response option for its Digi-RTU™ HVAC rooftop unit optimization technology. The new feature accepts the demand response load limit factor signal from any third party’s demand response controller.
Added to the WeatherExpert™ Series of commercial rooftop units are 6 to 23-ton sizes. They are designed to maintain product familiarity by taking advantage of common parts from existing Carrier rooftop designs and were designed in collaboration with customers.
Computer Model Used with Algorithm That Mimics the Laws of Evolution
September 26, 2013
Played out on a computer over hundreds of generations, a survival-of-the-fittest programming method adapted by National Institute of Standards and Technology (NIST) researchers has created a design for a more efficient rooftop air conditioning system.