Its manual reset functionality is a vital safety feature

the 031780500 TXV power head modulates refrigerant flow through the expansion valve assembly

while the threaded coupling simplifies field installation

20" WC to maintain strict airflow safety parameters and prevent delayed ignition

High Temperature Tolerance: Rated for medium temperatures up to 266°F

Lochinvar & A.O. Smith 100167817 Ignition Module THPU32HP7Y Its manual reset functionality isThe Lochinvar & A. O. Smith 100167817 Ignition Module is a critical OEM replacement for RLY3006 and S8610H30 18, engineered to handle sequence control in high efficiency gas fired appliances. This 24V intermittent pilot ignition control manages the gas valve, detects flame presence, and provides safety shutoff for residential and commercial heating systems. Operating at 24 VAC (50 60Hz) with a 150mA current draw, it is the direct factory authorized