Modine 5H0735910006 Pressure Switch

The Modine 5H0735910006 Pressure Switch is a critical safety component designed for precise draft pressure monitoring in Modine gas-fired unit heaters. Calibrated to a fixed set point of .60" WC (Water Column), this SPST (Single Pole Single Throw) air pressure switch ensures that the inducer motor is generating sufficient static pressure to safely vent combustion gases before allowing the ignition sequence to proceed. As a direct OEM replacement for 5H73591-6, this part maintains system integrity by preventing operation during vent blockages or inducer assembly failures. It is commonly found in a wide range of Modine power-vented heaters, including popular commercial and industrial models such as the PDP30, PDP50, PDP100, BD125, BDP50, and BDP100 series. The switch features standard male spade terminals for quick electrical integration and a rugged housing built to withstand the high-cycle demands of professional HVAC environments.

• Precise .60" WC Set Point: Factory-calibrated to ensure exact unit heater safety thresholds without the need for field adjustment.
• Direct OEM Compatibility: Seamlessly replaces 5H73591-6 and 5H73591B6, reducing downtime during emergency service calls.
• Wide Model Support: Engineered specifically for Modine PDP and BDP series heaters, ensuring a perfect fit and reliable SPST switching.
• Safety Interlock Reliability: Prevents hazardous combustion gas buildup by verifying proper venting before the gas valve opens.

• Is this switch compatible with the Modine 5H73591-6? Yes, the 5H0735910006 is the current manufacturer-specified replacement for the older 5H73591-6 part number.
• What causes this pressure switch to trip? Frequent trips or "open switch" codes are often caused by restricted vent pipes, a failing inducer blower, or cracked pressure switch tubing.
• Can I use a universal adjustable switch instead? For OEM safety compliance, it is recommended to use the factory-set .60" WC switch to ensure the heater operates within its designed airflow parameters.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.