Inspect the burner for a weak

Interchangeable Design: Full functional equivalence between 310137 and 310137/U ensures ease of sourcing for critical repairs

the brass construction and SAE J513 compliance make this 3/8 flare x 3/8 MPT brass adapter compatible with modern A2L refrigerant systems and standard mineral or synthetic oils

it is optimized for modern high-pressure refrigerants and vacuum procedures

Johnson Controls DMPR-RS311 Fusible Link Inspect the burner for aAs 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),