Heil Quaker ICP 1175187 Gas Valve

The Heil Quaker ICP 1175187 is a high-performance 2-stage DSI gas valve engineered for precision fuel regulation in residential and commercial ICP heating systems. More commonly recognized by its White Rodgers 36H54-470 manufacture number, this OEM replacement gas valve is a direct-spark ignition (DSI) component designed to manage manifold pressure across low and high fire stages. For technicians performing a furnace gas valve replacement, this unit supports a standard 1/2" x 1/2" NPT configuration and operates on a 24V redundant solenoid platform. Integrating this two-stage gas valve ensures the burner assembly receives calibrated flow, typically factory-set for 1.7" W.C. on low fire and 3.5" W.C. on high fire for natural gas applications. When troubleshooting HVAC gas valve 36H54-470 issues such as intermittent ignition or coil resistance failures (OL readings), replacing with a genuine 1175187 gas valve maintains the original equipment?s profile and combustion safety parameters without the need for manifold modifications.

• Dual-Stage Precision: Provides seamless transitions between heating stages to optimize fuel economy and indoor comfort levels.
• OEM Compatibility: Identified as an exact drop-in for Heil Quaker 1175187 and 36H54-470, ensuring matched port alignment and electrical connectors.
• Direct Spark Ignition (DSI): Engineered specifically for non-piloted systems, providing reliable main burner light-off via high-voltage electrode signals.
• Redundant Safety Solenoids: Features dual internal shut-off valves for enhanced leak protection and operational safety during the ignition cycle.
• Field Adjustable: Includes accessible pressure taps for verifying inlet and outlet (manifold) pressures during commissioning.

• Is the 1175187 compatible with LP (Propane) systems? Most 36H series valves ship for natural gas; a specific conversion kit is required to adjust spring tension and orifice sizing for liquid propane.
• How do I confirm the solenoid coil is functional? Use a multimeter to check for 24V at the terminals during the ignition trial. If voltage is present but the valve fails to click or open, check for an open internal coil.
• Can this replace a single-stage gas valve? No. This is a 2-stage component designed for logic boards that provide separate high/low fire signals. Swapping stages can lead to improper combustion and limit switch tripping.

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.