Heil Quaker ICP 1186278 Run Capacitor

The Heil Quaker ICP 1186278 Run Capacitor is a high-performance 45/7.5 MFD 440V dual-run component engineered for demanding HVACR applications. Designed for maximum reliability in air conditioning and heat pump systems, this 440Vac round dual run capacitor provides the precise phase shift required to optimize both the compressor and condenser fan motor. As a direct replacement for 1172291, it ensures seamless compatibility for technicians servicing International Comfort Products equipment including brands like Arcoaire, Comfortmaker, and Tempstar. Rated for both 370V and 440V applications, it features a rugged aluminum housing and 10,000 AFC internal protection to handle transient voltage spikes and thermal stress. This HVAC dual run capacitor is built to maintain tight capacitance tolerances, preventing common failure points such as motor overheating or intermittent short-cycling. For trade professionals, this OEM-spec part is the standard for restoring full torque and efficiency to residential cooling units.

• Dual-Circuit Versatility: Supports both the compressor (45 MFD) and fan (7.5 MFD) with a single, space-saving round assembly.
• Optimized Voltage Range: Rated for up to 440Vac, offering superior longevity compared to lower-rated 370V alternatives.
• Drop-In Serviceability: Specifically cross-referenced to replace legacy ICP part 1172291 without wiring modifications.
• Industrial Standard Compliance: Meets EIA-456-A standards for reliability and safety in high-cycle environments.
• Non-PCB Construction: Utilizes environmentally safe, high-grade metallized polypropylene film for stable electrical performance.

What are the signs that my 45/7.5 440V capacitor has failed?
Technicians typically look for a bulging or "domed" top, leaking dielectric fluid, or a humming sound from the compressor without start-up. Using a multimeter, a reading more than 5% or 6% away from the 45 or 7.5 microfarad rating indicates the part needs immediate replacement.

Can I use the 1186278 to replace a 370V capacitor?
Yes. You can always "upsize" the voltage rating. This 440V model will replace a 370V unit safely and often lasts longer due to its higher dielectric strength, provided the microfarad (45+7.5 MFD) ratings match.

Is this part compatible with non-Heil units?
While branded for Heil/ICP, this is a universal-standard capacitor. If your unit calls for a 45/7.5 MFD round dual capacitor at 370V or 440V, this technical specification will meet those requirements.

Item is Non Cancelable / Non Returnable

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.