Heil Quaker ICP 1172116 Run Capacitor

As a seasoned tech, you know that a weak starting torque or a humming compressor usually points straight to a failing dual run capacitor. The Heil Quaker ICP 1172116 is a mission-critical 35/5 MFD 370V component specifically designed for ICP HVAC equipment. This round, metal-can capacitor provides the exact 35 microfarad boost for the compressor and 5 microfarad for the fan motor, ensuring synchronized performance in condensing units and heat pumps. Rated for 370VAC, it handles the back-EMF of residential systems without the premature dielectric breakdown common in off-brand alternatives. This OEM replacement part is the direct successor to legacy part number 1172110 and has been superseded in some catalogs by 1186257. For contractors, using this HVAC capacitor replacement ensures 1172116 compatibility with brands like Tempstar, Comfortmaker, and Heil, maintaining the original design specs of the motor circuit and preventing over-amping or winding damage.

Key Benefits for Technicians

• Precise 35+5 MFD Tolerance: Maintains the required phase shift for dual-motor startups, preventing internal terminal overheating.
• 370V Dielectric Strength: Built to withstand commercial-grade voltage spikes in residential 208/230V applications.
• OEM Fitment: Eliminates the need for universal mounting brackets; the round ICP 1172116 matches standard factory strap dimensions.
• Environmental Protection: Features a pressure-sensitive interrupter and non-PCB oil for safe operation under high ambient temperatures.

Common Questions & Technical Support

Can I use a 440V capacitor to replace this 370V unit?
Yes. While you should never go lower than the 370V rating, a 440V rated capacitor is a suitable upgrade as it offers a higher insulation breakdown threshold.

What are the symptoms of a bad ICP 1172116 capacitor?
Look for a bulging top cap, "leaking" oil, or a fan that requires a manual push to start. Always discharge the terminals before testing with your multi-meter's capacitance setting.

Is this part compatible with my specific Heil or Tempstar model?
This part is the standard for many 1.5 to 3-ton units. However, verifying the MFD requirements on the motor nameplate is essential before installation.

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.