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The module operates on a standard 24V AC 50/60 Hz input and requires a transformer with at least a 20 VA rating
This HVAC pneumatic indicator is a staple for maintaining legacy building automation systems where calibrated analog feedback is essential for system tuning and diagnostic troubleshooting
Integrated Safety Logic: Features a high-limit ECO switch to prevent overheating conditions automatically
Serviceable design: Features removable orifices and color-coded springs for simplified field maintenance
ensuring your T475
Laars Heating Systems RXD7198 Control Board 321894-706 The module operates on aThe Laars Heating Systems RXD7198 Control Board is a critical OEM replacement part engineered for precise thermal management and system logic within high efficiency hydronic systems. Specifically designed for the Laars NeoTherm NTH150 210 series, this HVAC control board integrates advanced microprocessor logic to regulate combustion air flow, ignition sequences, and variable firing rates. For contractors performing boiler control board replacement,