Heil Quaker ICP 1191551 Pressure Switch

The Heil Quaker ICP 1191551 Pressure Switch is an OEM dual pressure switch assembly specifically engineered for high-efficiency ICP furnace systems. This component serves as the direct replacement for 1184414 and is critical for monitoring draft inducer performance to ensure safe ignition sequences. With precise setpoints of 0.30" WC and 0.75" WC, this switch detects the specific vacuum levels required to close the circuit and allow the gas valve to energize. Built to handle the demanding environments of condensing furnaces, it replaces legacy models like the BA20267-2 and 1539D1/B. For HVAC professionals, this drop-in replacement maintains system integrity across brands including Tempstar, Comfortmaker, and KeepRite. The robust diaphragm design is calibrated to prevent nuisance trips while ensuring the vent pressure switch accurately responds to flue obstructions or inducer failure, keeping the equipment within manufacturer safety parameters during heavy heating cycles.

Key Benefits:

• Exact OEM Match: Provides a seamless direct replacement for 1184414, eliminating the need for field modifications.
• Dual-Stage Precision: Calibrated with 0.30" and 0.75" WC setpoints for accurate multi-stage furnace monitoring.
• Broad Compatibility: Fits an extensive range of ICP, Heil, and Quaker gas furnaces, ensuring versatile truck stock utility.
• Enhanced Reliability: Features a resilient diaphragm construction designed to withstand temperature fluctuations and moisture in condensing systems.
• Safety Compliance: Maintains original agency listings and safety standards critical for HVAC technician liability and system performance.

Common Questions:

• How do I know if my furnace pressure switch is bad? Technicians should check for a 3-flash error code on the control board or use a manometer to verify if the inducer is pulling enough vacuum to meet the 0.30/0.75" WC requirements.
• Can I use this to replace a single-stage switch? This is a dual pressure switch assembly; it must be replaced with the exact OEM equivalent to ensure both stages of the furnace operate correctly.
• Does it matter how the switch is mounted? Yes, these switches are typically position-sensitive. Gravity can affect the diaphragm's calibration, so always mirror the original vertical or horizontal mounting orientation.

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.