Lennox 86M36 Pressure Switch

The Lennox 86M36 High Pressure Switch is an essential OEM safety component designed for precise refrigerant monitoring in residential and commercial HVACR systems. As a normally closed (N.C.) switch, this unit provides critical compressor protection by initiating a system cut-out when discharge pressures exceed 590 PSIG. Engineered for high-stakes environments, the 86M36 features an automatic reset that restores circuit continuity once the pressure drops back to 418 PSIG, ensuring operational stability without manual intervention.

This Lennox 86M36 is built with gold flash contact material for superior electrical conductivity and features 45-inch wire leads to accommodate various cabinet configurations. The 1/4" SAE female flare connection ensures a secure, leak-free integration with the refrigerant line. Utilizing a genuine Lennox 100087-01 pressure switch in your HVAC repair or maintenance routine prevents catastrophic compressor failure and maintains the technical integrity of the cooling circuit.

Key Benefits

• High-Pressure Cut-Out: Pre-calibrated to actuate at 590 PSIG to prevent equipment damage during overpressure events.
• Automatic System Recovery: Integrated auto-reset at 418 PSIG reduces downtime by allowing the system to resume normal operation once safe levels are reached.
• Technical Durability: Features gold flash contacts and a robust housing to withstand frequent pressure fluctuations and vibration.
• Direct Compatibility: Designed as a specific OEM replacement part for Lennox air conditioning and heat pump units, ensuring exact fitment.
• Simplified Installation: Equipped with 45-inch leads and a standard 1/4-inch flare fitting for efficient field replacement.

Common Questions

What are the specific trip and reset points for the Lennox 86M36?
This switch is engineered to open the circuit (trip) at 590 PSIG and automatically close the circuit (reset) when the pressure falls to 418 PSIG.

Is the 86M36 compatible with R-410A systems?
Yes, the 590 PSIG rating is specifically designed to handle the higher operating pressures associated with R-410A refrigerant applications.

Does this switch require a manual reset button?
No, the Lennox 86M36 is an automatic reset high-pressure control, meaning it will reset itself once the system pressure stabilizes within the safe range.

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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.