United Electric J21K-140 Pressure Switch 318172-701 Quiet Operation: Soft-start and variable

Quiet Operation: Soft-start and variable speed capabilities minimize 'duct thumping' and ambient operational noise

The Carrier LA01AD022 Fan Blade is a critical OEM replacement part engineered for high-static pressure applications in commercial and industrial HVACR systems

Diagnostic LED flashes will typically pinpoint internal logic or communication failures

while the 25 µm internal filter ensures minimal pressure drop with high dirt retention

A: Bent or damaged grilles can restrict airflow and expose fan blades to debris or accidental damage

United Electric J21K-140 Pressure Switch 318172-701 Quiet Operation: Soft-start and variableThe United Electric J21K 140 Pressure Switch is a high sensitivity differential pressure switch engineered for precise monitoring in demanding HVAC and industrial environments. This unit utilizes opposing brass bellows to accurately detect the pressure drop across filters, coils, or heat exchangers. With an adjustable range of 0 to 6 PSID and a tight deadband of 0. 1 to 0. 4 PSI, it provides the low end resolution required for airflow proving and high