Lochinvar & A.O. Smith 100157703 Adjustable High Limit with Manual Reset

Description

Lochinvar & A.O. Smith Adjustable High Limit with Manual Reset — Part #100157703

The Lochinvar & A.O. Smith 100157703 is an adjustable high limit control with manual reset, engineered as a genuine OEM replacement component for compatible Lochinvar and A.O. Smith water heaters and boiler systems. This safety device monitors water or fluid temperature and interrupts system operation when a preset high-temperature threshold is exceeded, protecting equipment and connected systems from damage caused by overheating.

Key Features

• Adjustable high limit setpoint allows field calibration to match system requirements
• Manual reset design requires deliberate operator action before the system can resume operation, adding an extra layer of safety
• Genuine OEM replacement part for Lochinvar and A.O. Smith equipment
• Designed for reliable, long-term performance in demanding heating applications
• Helps protect water heaters and boilers from unsafe operating temperatures

Application

This high limit control is intended for use as a direct OEM replacement in Lochinvar and A.O. Smith water heating and hydronic boiler equipment. Always consult your equipment’s service manual or a qualified HVAC/plumbing technician to verify compatibility before installation.

Specifications

• Part Number: 100157703
• Type: Adjustable High Limit with Manual Reset
• Brand: Lochinvar & A.O. Smith
• Application: Water Heaters / Boilers