Pay in 4 interest-free payments of $18.34 Learn more
Ships within 48 hours · Estimated delivery Sep 8 - Sep 13
Duotone terrace — saffron brief on the left, garden-folded ledger on the right.
Simplified Calibration: Features a field-adjustable zero to allow for easy recalibration during routine system maintenance
Standard HVAC hand tools are sufficient
Constructed from high-performance insulating material to resist thermal bridging in hollow wall installations
including the 80AF1UH and EL296UH series
Optimized Efficiency: Maintains precise refrigerant metering for superior heat pump performance
Resideo 50057547-003 Circuit Board 321142-301 Simplified Calibration: Features a field-adjustableThe Resideo 50057547 003 Circuit Board is the direct OEM replacement control module for the HE250 TrueEASE Large Advanced Bypass Humidifier. As the central processing logic for the humidification system, this board manages the solenoid valve timing, fan interlocks, and sensor feedback to ensure precise indoor air quality management. Designed for HVAC contractors, it facilitates seamless system troubleshooting and restores the advanced diagnostic