Resideo 137980A Test Button Assembly 340793-762 Optimized Airflow: The 28-inch 5-blade

Optimized Airflow: The 28-inch 5-blade configuration is designed for maximum airflow efficiency and heat rejection capabilities

this specific diaphragm switch is typically rated for a proof pressure of 1000 psi to prevent failure during system surges

while the self-aligning sleeve bearing system provides quiet

though technicians must ensure proper oil type (POE is typically required for R-407C) before startup

Resideo 137980A Test Button Assembly 340793-762 Optimized Airflow: The 28-inch 5-bladeThe Resideo 137980A Test Button Assembly is a critical field service component designed for diagnosing and maintaining Honeywell electronic air cleaners. This OEM replacement part allows technicians to verify high voltage power supply operation by manually triggering a momentary arc to the ground, confirming that the collector cells and power box are functional. Engineered for a direct fit, it mounts securely into the access door, ensuring consistent