Lennox 57M66 "1.41""wc SPST Pressure Switch" "1.41""wc SPST Pressure Switch"

"1.41""wc SPST Pressure Switch"

Install the 57M66 "1.41""wc SPST Pressure Switch" by Lennox to your furnace's 1.4""wc port. For use with gas furnaces, it features an adjustable pressure relief mechanism that helps prevent potential damage to your gas furnace.

The Lennox 57M66 is an 1.41""wc SPST Pressure Switch. This unit can be installed as a direct replacement for the following product.

The Lennox 57M66 is for use with 1.41""wc, up to 1.91""wc, and 2.41"" wc venting systems. Use with Gas & Electric Units. Single Pole - Pressure Switch - SPST Switch (25 Amp)

Pressure Switch, Fitting: 1.41""wc (with cap for 1.00""wc) GP, Tappet: 120mm SPL3, Primary Seal 019-008, Secondary Seal 019-010, Connector: 3/8"" FNPT ASA or BSPT ASA, Mounting Stud: M12-1.75 x 20mm, Function: High Pressure Cut Off

Standard Normally Closed Pressure Switch is a single pole on/off pressure switch used to operate any appliance requiring 1.41"" WC at 70 PSI setting. It has a chrome plated brass stem with 15/32"" O.D. handle and includes mounting hardware.

This is the pressure switch kit for Lennox 57M66 1-41, 57M65 1-41, and 57M64 1-41 Air Conditioners. This model number is normally on the left side of the air handler near the control boxes.

This safety pressure switch has a water comp