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the DFS-221-228 provides stable performance across diverse HVAC ventilation environments
The model number and temperature rating are clearly printed in large alphanumeric lettering on the face of the detector for quick field verification
How do I wire the unused primary leads
Field Interchangeable: Standardized design allows for quick removal and installation during regulator troubleshooting or capacity adjustments
as a genuine International Comfort Products part
McDonnell & Miller FS8-WJ Switch R-410A the DFS-221-228 provides stable performanceThe McDonnell & Miller FS8 WJ Flow Switch (Part Number: 120602) is a heavy duty, NEMA 4X rated flow switch engineered for high demand hydronic and industrial fluid monitoring. This liquid flow switch features a 1" BSPT connection and is built with sealed Monel bellows to ensure reliable operation in corrosive or wash down environments where standard enclosures fail. Operating at a maximum pressure of 160 PSI and temperatures up to 225F, the FS8 WJ
