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it meets the exact tolerances required for lead-free compliance and backflow prevention standards
Specialized Sealing: High-grade EPDM elastomers are specifically chosen for long-term resilience in hot water and steam service
Enhanced Diagnostics: Integrated test jacks allow technicians to verify flame signal strength using a standard multi-meter during commissioning or troubleshooting
Technicians typically look for a clicking sound without circuit engagement
the kit utilizes the existing 24V transformer
Trane BRD6641 Control Board 320735-701 it meets the exact tolerancesThe Trane BRD6641 Control Board is a high performance direct digital zone controller designed for precise regulation of multi family and commercial HVAC systems. This OEM Trane PCB (Printed Circuit Board) replaces legacy control modules, offering integrated algorithms for optimized airflow, humidity, and temperature management within water terminal units, fan coils, and chilled beams. Engineered for compatibility with LonMark HVAC profiles, the