Weil McLain 511-624-657 Pressure Switch Set at 1.36″ WC

Description

Weil McLain 511-624-657 Pressure Switch — Set at 1.36″ WC

The Weil McLain 511-624-657 is a genuine OEM pressure switch factory-set at 1.36 inches water column (WC). Designed as a direct replacement component for compatible Weil McLain boiler systems, this pressure switch plays a critical role in monitoring system pressure and ensuring safe, reliable boiler operation. When system pressure deviates from the preset threshold, the switch interrupts the control circuit to protect the equipment and prevent unsafe operating conditions.

Key Features

• Factory preset switching point at 1.36″ WC (inches water column)
• Genuine Weil McLain OEM replacement part
• Designed for use in compatible Weil McLain boiler systems
• Provides critical pressure-based safety control and circuit interruption
• Helps protect boiler equipment from operating outside safe pressure parameters
• Direct drop-in replacement for simplified installation

Application

This pressure switch is intended for use in Weil McLain boiler systems requiring a pressure sensing device set at 1.36″ WC. Always consult your boiler’s installation and service manual to confirm compatibility before installation. Installation should be performed by a qualified HVAC/R or boiler technician in accordance with all applicable local codes and manufacturer guidelines.

Product Details

• Brand: Weil McLain
• Part Number / SKU: 511-624-657
• Set Point: 1.36″ WC (inches water column)
• Type: Pressure Switch
• Application: Boiler safety and control