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Do I need to drill new holes for installation
this model features a built-in manual reset circuit breaker
ensuring efficient heat rejection across the coil
the HR54AL315 and HR54AL315A are technically identical components and can be used interchangeably in all documented applications
System Sensor D4120 Detector R-410A Do I need to drillThe System Sensor D4120 is an industrial grade 4 wire photoelectric duct smoke detector designed for high performance smoke detection in HVAC air handling systems. This InnovairFlex duct smoke detector operates across a wide air velocity range of 100 to 4,000 feet per minute, making it suitable for both low flow and high volume applications. It features a versatile pivoting housing that accommodates square or rectangular footprints and mounts easily