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This flue box is designed for specific 80% AFUE and mid-efficiency units
monitoring the heat exchanger temperature to prevent dangerous overheating
Optimized Compatibility: Specifically designed for York Chiller model 42FL28 and compatible air-cooled screw units
and FX industrial heaters
making it an essential component for monitoring boilers
Modine 5H0780340011 Pressure Switch 30067439-890 This flue box is designedThe Modine 5H0780340011 Pressure Switch is a critical safety component engineered specifically for Modine LP gas unit heaters. As the authorized replacement for the legacy 5H78034 11, this OEM switch ensures proper venting and combustion airflow before allowing the gas valve to energize. Built for low pressure gas applications, this HVAC air pressure switch features a precision calibrated set point to maintain system integrity and prevent hazardous
US$ 29.97
US$ 28.00
US$ 29.97