and medium-to-low temperature refrigeration systems

it ensures the venting system is clear and the heat exchanger has proper airflow before allowing ignition

it provides reliable overpressure protection for commercial and industrial water heating equipment

901374 is the direct replacement for 6208180

Can I use an 8201-008BX to replace a different SPDT relay

Lochinvar & A.O. Smith 100208570 Limit 322057-301 and medium-to-low temperature refrigeration systemsAs a veteran tech, you know that a nuisance trip is one thing, but a failed high limit is a direct threat to the heat exchanger. The Lochinvar & A. O. Smith 100208570 Limit is a critical safety component calibrated for a 175F high limit set point. This genuine OEM part, which is identical to TST2052, provides the precision needed to prevent runaway temperatures in residential pool heaters and water heaters. Designed with a 1 4 NPT connection, this 175