High-efficiency rooftop units

Lennox has added 7.5- to 10-ton gas/electric and electric/electric rooftop units that feature an isolated compressor and a slide-out blower for more efficient operations.


Lennox has added high-efficiency 7.5- to 10-ton, gas/electric and electric/electric models to its existing line of Landmark rooftop units. This factory-installed technology uses a variable frequency drive (VFD) to deliver supply fan power savings of up to 61% while still meeting comfort requirements. Additionally, high-efficiency Landmark models may help businesses qualify for state and local utility rebates. The Landmark unit’s flexible design offers more than 100 field customizable options and more than 30 features designed to reduce installation and service time. This includes an isolated compressor compartment for easier, more accurate charge confirmation; a slide-out blower that offers quick belt tensioning, adjustment, or replacement and easier cleaning of the blower wheel; and an accessible gas compartment that simplifies analysis and service.



No comments
Consulting-Specifying Engineer's Product of the Year (POY) contest is the premier award for new products in the HVAC, fire, electrical, and...
Consulting-Specifying Engineer magazine is dedicated to encouraging and recognizing the most talented young individuals...
The MEP Giants program lists the top mechanical, electrical, plumbing, and fire protection engineering firms in the United States.
HVAC and building envelope: Efficient, effective systems; Designing fire sprinkler systems; Wireless controls in buildings; 2015 Product of the Year winners
2015 MEP Giants: MEP Giants annual report; Mergers and acquisitions; NFPA 2001; Fiber-optic cables; LED specifications
Hospital IAQ: Indoor air quality in health care facilities; NFPA 72; Water use and conservation; Net-zero buildings
Designing positive-energy buildings; Ensuring power quality; Complying with NFPA 110; Minimizing arc flash hazards
Implementing microgrids: Controlling campus power generation; Understanding cogeneration systems; Evaluating UPS system efficiency; Driving data center PUE, efficiency
Optimizing genset sizing; How the Internet of Things affects the data center; Increasing transformer efficiency; Standby vs. emergency power in mission critical facilities
As brand protection manager for Eaton’s Electrical Sector, Tom Grace oversees counterfeit awareness...
Amara Rozgus is chief editor and content manager of Consulting-Specifier Engineer magazine.
IEEE power industry experts bring their combined experience in the electrical power industry...
Michael Heinsdorf, P.E., LEED AP, CDT is an Engineering Specification Writer at ARCOM MasterSpec.