Articles Tagged with ''variable speed''

ClimateMaster Breaks the 40 EER Barrier

April 16, 2012
ClimateMaster recently announced its Trilogy™ 40 series has exceeded 40 EER at ground-loop conditions and been certified by the Air-Conditioning, Heating, and Refrigeration Institute (AHRI).


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Danfoss VLT Drives: Variable-Speed Drive

March 26, 2012
Minimizing wear on HVAC equipment and maximizing system uptime is the VLT® HVAC Basic drive. It is a robust variable-speed drive solution that delivers highly reliable HVAC performance for basic fan and pump operations, the company said.


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Taco: Commercial Wet-Rotor Pumps

March 26, 2012
With a working pressure of 175 psi, the Viridian line of wet-rotor pumps with an ECM motor offers an 80 percent decrease in energy consumption compared to a standard commercial pump of the same size, says the company.


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Johnson Controls - Unitary Products: Multiposition Gas Furnaces

February 6, 2012
Expanding the TM9X and TM9V families, two models have been added to the Luxaire® LX Series of multiposition gas furnaces. An input rate of 40,000 Btuh enables the furnaces to provide better heat load matches, avoiding oversized equipment selection.


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International Comfort Products: Gas Furnaces

January 30, 2012
The Tempstar® SmartComfort® 96 percent-plus AFUE gas furnace line is available. The SmartComfort® VC 97 features a modulating gas valve, variable-speed ECM blower motor, 97 percent AFUE, and stainless steel primary and secondary heat exchangers. The SmartComfort VT 96 is a two-stage variable-speed model at 96 percent AFUE.


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Monday, Jan. 23, 2012: Taco Introduces High Efficiency Commercial Pump Line

January 23, 2012
Taco’s Viridian pump line makes its first appearance at the 2012 AHR Expo in Chicago. The wet-rotor pump with an ECM motor offers an 80 percent decrease in energy consumption compared to a standard commercial pump of the same size, the company says.


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Power Trends Drive Change at Danfoss

January 23, 2012
Time of use (TOU) rate structures have long been touted as a necessity for utility companies to incentivize homeowners and building owners enough to embrace demand response systems. According to John Galyen, president of Danfoss North America, “Smart meters will change the game.”


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Explaining Variable Speed to Customers

January 16, 2012
When consumers are buying a new or replacement furnace from an HVAC contractor, it shouldn’t be surprising that many get that “deer in the headlights” expression on their faces when a tech or salesperson is trying to explain the concept of variable speed. Is there help?


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Motors, Drives, Variable-Speed Products

April 4, 2011
This product roundup highlights a variety of motors, drives, and variable-speed products.
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Defining Variable Speed for Customers

April 4, 2011
One of the most common HVAC technologies - common to people inside the trade - is variable speed. Although most HVAC people know its definition and how it affects equipment performance, chances are that most customers have limited or no understanding of how it affects the equipment in their basement or attic.
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