When replacing Hart or Proctor switches

clicking sounds with no flame

Standard Compatibility: Features a 1/2" Male NPT connection for seamless integration into existing HVACR piping systems

Serviceable Design: Compatible with all Emerson T-Series Take-Apart valve bodies

Lochinvar & A.O. Smith 100208413 Pump 326010-701 When replacing Hart or ProctorThe Lochinvar & A. O. Smith 100208413 Pump is a critical bypass loop pump engineered for high demand hydronic heating and domestic hot water applications. Designed to maintain precise thermal equilibrium, this OEM circulation pump prevents uneven heat distribution and localized "hot patches" by ensuring continuous fluid movement through the secondary loop. This constant circulation protects the heat exchanger from thermal stress and stagnation,