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Lennox 14T66 Dual-Stage Combustion Air Pressure Switch Kit

Manufacturer

Picture for manufacturer Lennox

Part Number

14T66
9 reviews
Sale Price

$33.47

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Lennox 14T66 is a dual-stage combustion air pressure switch assembly designed for 90% efficiency modulating gas furnaces. This OEM replacement kit features set point high of 1.00 WC and set point low of 0.25 WC, ensuring the inducer motor pulls the required vacuum before the ignition sequence begins. The switch performs as a critical safety component by measuring the air pressure entering the combustion chamber.

Key Features:

  • Dual-stage precision with accurate 1.00" - 0.25" WC sensing for modulating furnace sequences
  • Rated for elevations from 0 to 7500 feet
  • Includes dual-switch assembly and mounting bracket
  • Manufacturer part number 104937-01
  • Direct OEM compatibility - replaces Lennox 14A41, 606569-15, and 606569-07

This pressure switch ensures the system meets modulating furnace specifications for flue gas venting and vacuum suction, preventing unsafe gas buildup or short-cycling due to inaccurate draft readings. This replacement kit is used with modulating furnaces and must be installed by a licensed professional service technician.

It was great, I purchased this hood from redline Motorsports & they never shipped it. So I bought through you guys & it went smooth!

Thanks for the product and getting it ready and delivered in a timely manner

Good service timely delivery

Very good so far.

Great service. Good prices

It was shipped fast, and was the right parts. Couldn't ask for more, thank you.

Definitely the lowest prices I've found for the parts I was looking for.

Everything was great however, I could not track the shipping. The link I was sent would not open to check status.

Nice and fast

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