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Diagnostic LED patterns on the 325878-751 provide rapid identification of limit switch trips
Precision Climate Control: Optimizes geothermal heat pump performance through accurate digital logic for fan and valve plate management
It delivers a consistent 25-35 mV open circuit millivolt range
Robust Construction: Built to withstand commercial duty cycles in hydronic heating systems
Bard HVAC 8406-075 Pressure Switch Refrigerant Diagnostic LED patterns on theThe Bard HVAC 8406 075 Pressure Switch is a critical safety and operational control designed specifically for Bard wall mount units, heat pumps, and air conditioning systems. This high precision air pressure switch is factory calibrated to a setpoint of . 65" WC + . 05", ensuring that your system maintains appropriate airflow and venting conditions before allowing the ignition or cooling cycle to proceed. For technicians troubleshooting short cycling
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