Lochinvar & A.O. Smith 100166242 .27″wc SPDT Pressure Switch

Description

Lochinvar & A.O. Smith 100166242 .27″wc SPDT Pressure Switch

The Lochinvar & A.O. Smith 100166242 is an OEM replacement SPDT (Single-Pole, Double-Throw) pressure switch engineered to deliver reliable, precise pressure sensing in residential and commercial water heating and boiler applications. Rated at 0.27″ water column (wc), this switch is designed to monitor system pressure and protect equipment by opening or closing circuits at the correct setpoint — helping prevent unsafe operating conditions and ensuring your heating system runs efficiently.

Key Features

• OEM replacement part for Lochinvar and A.O. Smith water heaters and boilers
• SPDT (Single-Pole, Double-Throw) switching action for versatile circuit control
• Rated setpoint: 0.27″ water column (wc)
• Monitors system pressure to protect equipment from unsafe operating conditions
• Designed for accurate, dependable pressure actuation
• Direct-fit replacement for simplified installation and reduced downtime

Application

This pressure switch is a critical safety and control component used in Lochinvar and A.O. Smith heating equipment. It senses changes in air or gas pressure within the system and signals the control board to allow or interrupt operation accordingly. Proper pressure switch function is essential for safe ignition sequencing and ongoing burner operation.

Why Choose OEM Replacement Parts?

Using genuine OEM replacement components like the 100166242 ensures compatibility, maintains equipment warranty integrity, and delivers the performance specifications your system was designed around. Avoid costly callbacks and mismatched aftermarket parts by specifying the correct OEM switch every time.