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Precision Machined: Ensures a perfect 45-degree SAE flare seat for metal-to-metal sealing
This genuine HVAC OEM replacement part is critical for regulating the manifold pressure and gas flow rate across the burner assembly
If the new unit is smaller
System Integrity: Eliminates bypass leakage between pneumatic control modules and the backplate interface
ensuring that the pneumatic actuator can modulate the stem without premature wear or friction-induced failure
Johnson Controls DMPR-RS311 Fusible Link Precision Machined: Ensures a perfectAs 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),
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