Heil Quaker ICP 1174684 Pressure Switch

The Heil Quaker ICP 1174684 Pressure Switch is an essential safety component designed for high-pressure monitoring in ICP HVAC systems. Engineered as a 610/420# High Pressure Switch, this control opens the electrical circuit when internal system pressures reach 610 PSI and resets automatically when pressure drops to 420 PSI. This precise refrigerant pressure cutout prevents compressor damage due to restricted airflow, overcharging, or condenser fan failure. As an OEM ICP replacement part, it ensures direct mechanical compatibility with existing flared or soldered connections, maintaining the factory-specified safety parameters of the unit. For contractors performing a furnace or AC repair, utilizing this genuine high pressure limit switch ensures long-term reliability and prevents nuisance tripping often associated with substandard aftermarket alternatives. It is vital to verify these HVAC pressure switch specifications against the data plate to ensure system protection during peak thermal loads.

• Precision Calibration: Factory-set 610 PSI cutout and 420 PSI cut-in for accurate high-pressure protection.
• System Longevity: Prevents catastrophic compressor failure by monitoring discharge pressure levels.
• OEM Standards: Genuine Heil Quaker ICP part ensures exact fitment and electrical ratings for residential HVAC units.
• Durability: Built to withstand high-vibration environments typical of outdoor condenser units.

What causes this switch to trip in an ICP system?
A trip usually indicates a high-pressure condition caused by a dirty condenser coil, a failing condenser fan motor, or a refrigerant overcharge.

Can I bypass the 1174684 switch for testing?
While practitioners may briefly jump the switch to diagnose a control circuit, the system should never be operated without a functional high pressure switch as it risks internal compressor damage.

Is this switch compatible with R-410A systems?
Yes, the 610 PSI trip point is specifically calibrated for the higher operating pressures of R-410A air conditioning and heat pump systems.

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.