Johnson Controls DMPR-RS311 Fusible Link This ACR tube fitting is

This ACR tube fitting is compatible with copper

System Integrity: Eliminates bypass leakage between pneumatic control modules and the backplate interface

This genuine HVAC OEM replacement part is critical for regulating the manifold pressure and gas flow rate across the burner assembly

and CGi boilers

Johnson Controls DMPR-RS311 Fusible Link This ACR tube fitting isAs a direct replacement for the legacy DMPR RS201, the Johnson Controls DMPR RS311 is a critical fire safety component engineered specifically for FD 1300 Series dynamic multi blade fire dampers. This 165 degree fusible link is designed to provide thermal triggered closure in high velocity HVAC systems, ensuring compliance with UL 555 and NFPA 90A standards. The DMPR RS311 functions as a mechanical release; once ambient temperatures reach 165F (74C),