Genuine OEM Lochinvar HLC2910 High Limit Switch, 175°F (100171241)

This is an Genuine OEM Lochinvar SPDT Water Pressure Switch used in EnergyRite (model ERN/ERL) pool & spa heaters, which acts as a safety switch that protects the heat exchanger from catastrophic overheating and prevents boiling water from entering the pool or spa by shutting off the heater if the water temperature exceeds 175°F.

• p/n: HLC2910, 1100171241
• Temperature Rating: 175°F (79.4°C) fixed trip point
• Reset Type: Automatic (closes back up once the water cools below the differential threshold)
• Normally Closed (NC) Operation: Under normal pool-heating conditions, the electrical contacts inside the switch remain closed, allowing power to complete the safety circuit loop.
• Operating Voltage: 24 VAC (Low Voltage)