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the Warrick 3Z1B is specifically designed to adapt 3W series wire-suspended probes
The rugged construction makes it a staple for contractors maintaining Johnson Controls and York equipment
ensuring a drop-in fit without requiring modifications to the existing valve body or plumbing
Utilizing a robust diaphragm and high-grade electrical contacts
Field-Ready Installation: Includes the threaded bonnet adapter and stem retainer
Lochinvar & A.O. Smith 100290350 Rollout Switch 30067439-890 the Warrick 3Z1B is specificallyThe Lochinvar & A. O. Smith 100290350 Rollout Switch is a mission critical safety component designed for high efficiency commercial and residential water heaters and boilers. This manual reset (M R) thermal switch is calibrated for a 325F trip point, functioning as a fail safe to interrupt the burner circuit if flame rollout or excessive heat is detected near the burner vestibule. As the direct 100148397 replacement, this updated OEM part ensures