Automation Components Inc (ACI) SM-501-P Detector 318172-701 significantly reducing demand on the

significantly reducing demand on the instrument air compressor

Common Questions: How do I troubleshoot a 3-flash LED error on this Fenwal module

The 63W56 is critical for detecting venting obstructions or inducer failures

Universal Voltage Input: Simplifies inventory and field replacement by supporting any supply voltage from 24V to 240V

Automation Components Inc (ACI) SM-501-P Detector 318172-701 significantly reducing demand on theThe Automation Components Inc (ACI) SM 501 P is a high performance photoelectric duct smoke detector designed to provide early detection of smoke and products of combustion in HVAC air handling systems. As the SM 501 P direct replacement for legacy SM 501 and SM 501 N models, this unit ensures seamless integration into existing fire safety infrastructures. Operating on multiple input voltages including 24VAC, 24VDC, 115VAC, and 230VAC, it offers