The internal interrupter in this MARS unit is designed to disconnect the capacitor if internal pressure builds

the board requires replacement

optimizing overall system airflow performance

and 325-7A series gas regulators

This RIB2421B relay is UL listed for energy management and fire alarm applications

Schneider Electric (Erie) VS2317 Valve Body Els PW 17895 The internal interrupter in thisThe Schneider Electric (Erie) VS2317 Valve Body is a rugged, two position steam valve body designed for high performance fluid control in HVAC zone valve applications. Engineered with a 3 4" sweat connection, this 2 way zone valve body features a high 7. 5 Cv flow coefficient, making it ideal for low pressure steam up to 15 psig and high temperature hydronic systems. As part of the Erie PopTop series, it utilizes a forged brass construction with a