Lennox 78W57 ".57""wc SPST Pressure Switch"

".57""wc SPST Pressure Switch"

The Lennox "."57""wc SPST Pressure Switch" allows you to control your boiler. It comes with chrome finish for enhanced durability. Dual port pressure switches from Lennox are used on Lennox hot water or steam boilers for modulating gas valve power. The important thing to remember when shopping for the right boiler is that it has to be durable, as well as compatible with the other installed units.

A Lennox pressure switch is a self-contained unit developed to control a steam boiler. It maintains the regulator pressure under varying load conditions of normal start-up or shutdown sequences. The 78W57 switch, which is used on many of the Rheem and Ruud steam boilers, can be wired for SPST or SPDT operation.

The Lennox SPST pressure switch is manufactured with new technology to withstand the rigors of today's demanding industry. The new SIT (Superior Integrity Technology) provides the same reliability features and benefits as the traditional pressure switches, but adds increased resistance against salt water intrusion, environmental contaminants and damage from thermal shock.

The 78W57 pressure switch is a "wall mount" switch with built-in thermal overload protection. It is designed for use on gas furnaces and includes a two year limited warranty.

This Lennox 78W57 pressure switch is designed for installations where the electric heat is controlled by a wall thermostat. The unit is for use with gas furnaces and other heating systems that burn natural gas, propane, or oil. This pressure switch is capable of sensing high temperature levels within the home. When the thermostatic control senses a higher temperature, it opens its contacts to turn off your heating device until the temperature within your home drops below the pre-set point.

The Lennox 78W57 pressure switch has a latching handle and comes with a 10' grounded cord. It is compatible with the following furnace models: 1120, 1311, 1321, 1421, 1521, 1621, 1721, 1821M, 1822M, 1931M, 2007M, 2010M and 2521M.

With the 78W57, Lennox offers a pressure switch that's great for heating and cooling systems requiring two stage equipment for high humidity and other low flow applications.