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Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
It functions as a safety interlock
indicates the seal has failed
provided the horsepower (3/4 HP)
Common indicators include the inducer motor running continuously without ignition
Mechanical Reliability: Built to resist pilot tube clogging and slide-valve sticking
Lochinvar & A.O. Smith 100111317 Pressure Switch 319848-301 It functions as a safetyThe Lochinvar & A. O. Smith 100111317 Pressure Switch is a critical OEM safety component engineered for precise airflow verification in high efficiency water heaters and boilers. This normally open air pressure switch is calibrated to a fixed set point of 0. 20" WC (Water Column), ensuring the combustion blower is generating sufficient negative pressure before the ignition sequence initiates. As a genuine 100111317 replacement part, it provides the
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