Lochinvar & A.O. Smith 100110901 Window Observation 319847-401 5-digit LCD cycles through high-side

5-digit LCD cycles through high-side

Flexible SPDT Logic: Dual SPDT contacts allow for simultaneous alarm signaling and system shutdown

it integrates a 2000 IPER-HC gas valve with the 780-845 lockout ignition control

This model is technically identical to the MA51-7100 and features a critical manual override for manual valve positioning and preload adjustment during startup

) contact setup that triggers an alarm loop the moment incoming voltage drops

Lochinvar & A.O. Smith 100110901 Window Observation 319847-401 5-digit LCD cycles through high-sideUpgrade your system monitoring with the Lochinvar & A. O. Smith 100110901 Window Observation assembly. This genuine OEM sight glass replacement is a critical component for service technicians performing routine combustion analysis or checking burner flame quality in high efficiency Lochinvar boilers and A. O. Smith water heaters. Designed to withstand the thermal stress of sealed combustion chambers, this durable observation port ensures an airtight