Smith 100110176 Limit Switch is a critical safety component designed for high-performance commercial and residential water heating systems

Rugged Construction: Durable metal sampling tube design provides long-term stability in high-velocity air streams

Industrial Standards: Fully UL Recognized and CSA Certified

Note that brass trim models like the VG1241CL are not rated for steam service

the 73W85 sensor offers seamless HVAC replacement part compatibility

Fenwal 35-655605-013 Control 321142-301 Smith 100110176 Limit Switch isThe Fenwal 35 655605 013 Control is a microprocessor based 24V Hot Surface Ignition (HSI) module engineered for precise sequence management in gas fired heating equipment. This OEM grade ignition board features a three trial ignition (3TRY) sequence and 7 second Trial for Ignition (TFI) period, ensuring reliable burner light off even in demanding environments. Designed with 0 seconds of pre purge (0sPP), it provides immediate ignitor heat up upon a