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Use a digital manometer to measure the actual draft produced by the inducer
Frequent tripping is often caused by restricted airflow
but the Trane blower door switch must be fully functional for permanent operation to meet code and safety requirements
as counterflow and direct-vent models may use different limit controls
Robertshaw 780-783 Ignition Module Els PW 17895 Use a digital manometer toThe Robertshaw 780 783 is a critical HSI ignition module engineered for high demand gas fired heating systems and commercial cooking applications. As a direct replacement for the HS78034PL308A, this unit utilizes standard 120V AC supply voltage and 24V AC control voltage to provide reliable hot surface ignition. Designed for versatile field application, it supports both local and remote flame sensing, ensuring a stable flame rectification signal
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