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These motors are sometimes called DC motors, sometimes EC motors and occasionally DC/EC motors. DC stands for direct current and EC stands for electronically commutated.. DC motors allow the speed of the fans within a fan coil unit to be controlled by means of a 0-10 Volt input control signal to the motor/s, the transformers and speed switches associated with AC fan coils are not required.
Such a system contains a boiler, furnace, or heat pump to heat water, steam, or air in a central location such as a furnace room in a home, or a mechanical room in a large building. The heat can be transferred by convection, conduction, or radiation. Space heaters are used to heat single rooms and only consist of a single unit.
In lieu of payment, Lennox accepted their patent, obtaining rights to the idea and founded the Lennox Furnace Co. [2] In 1904, DW Norris acquired the company. He managed the company until his death in 1949. [3] From 1964-65, Lennox produced a small crawler tractor and mower called the Lennox Kitty Track 600.
The fourth category of furnace is the high-efficiency condensing gas furnace. High efficiency condensing gas furnaces typically achieve between 90% and 98% AFUE. [3] A condensing gas furnace includes a sealed combustion area, combustion draft inducer and a secondary heat exchanger. The primary gain in efficiency for a condensing gas furnace, as ...
David Lennox (April 15, 1855 – February 15, 1947) was an American inventor and businessman. A furnace manufacturing business he founded in 1895 in Marshalltown, Iowa evolved into what is today known as Lennox International, a global corporation specializing in air conditioning, heating, and commercial refrigeration.
Lennox-Gastaut syndrome, a difficult-to-treat form of childhood-onset epilepsy; Lennox and Addington, an electoral district in Ontario, Canada; Zion & Lennox, a reggaeton music duo from Carolina, Puerto Rico; Lenox (disambiguation) Linux, an open-source Unix-like operating-system kernel
The resistance per wire length (Ω/m) of a heating element material is defined in ASTM and DIN standards. [ 2 ] : 2 [ 3 ] [ 4 ] In ASTM, wires greater than 0.127 mm in diameter are specified to be held within a tolerance of ±5% Ω/m and for thinner wires ±8% Ω/m.
Lennox has three different series of air conditioners, Elite, Dave Lennox Signature Collection and Merit series. [1] The Merit series is the lowest cost Lennox air conditioner, and there are 4 models of Single-stage with a 13, 14, 15 or 16 Seasonal energy efficiency ratio (SEER) rating. [2]
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