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ensure the sealing surface is wire-brushed clean for the best metal-to-gasket contact
What do the orange wires indicate
Known as the 3TA223 model
What does 'Open Low' mean for this switch
Modine 5H0735910008 Pressure Switch 30067439-890 ensure the sealing surface isThe Modine 5H0735910008 Pressure Switch is a critical safety component designed for precise combustion air monitoring in high efficiency heating systems. This SPST furnace pressure switch is factory calibrated to a . 8" WC set point, ensuring reliable performance by verifying proper inducer motor operation and venting pressure before allowing the ignition sequence to proceed. As the 5H73591 8 direct replacement, this OEM component maintains system