Four Seasons 20987 HVAC Binary Switch

Overview of Four Seasons Pressure Switch 20987

The Four Seasons Pressure Switch 20987 is designed for precise pressure monitoring in automotive HVAC systems. Specifically compatible with Nissan Maxima models, this system-mounted pressure switch ensures reliable operation within the vehicle's air conditioning system.

• Connector Shape: Round with female connector gender
• Color: Gray
• Material: Durable steel construction
• Fitting Thread Size: 3/8 in. x 24 with female fitting gender
• Operates at low pressure on/off points: 34 psi on, 33 psi off
• Includes 2 terminals and Weather Pack connector for secure connections
• Meets or exceeds OEM specifications

Detailed Product Description

The Four Seasons Pressure Switch 20987 is a binary HVAC pressure switch designed to monitor refrigerant pressure within the air conditioning system of Nissan Maxima vehicles. Featuring a round, female connector and a 3/8 in. x 24 female fitting thread, this switch mounts directly on the system to provide accurate pressure readings. The switch operates by opening at 33 psi and closing at 34 psi, ensuring the HVAC system maintains optimal pressure levels. Constructed from steel and equipped with a Weather Pack connector, it offers durability and reliable electrical connections in various driving conditions.

About the Four Seasons Pressure Switch Product Line

The Four Seasons Pressure Switch line focuses on HVAC binary switches engineered for precise pressure control and system protection. This product line is designed to meet or exceed OEM standards, providing dependable performance for vehicle air conditioning systems. The 20987 model exemplifies this line by combining robust materials and accurate pressure operation tailored for Nissan Maxima applications.

Common Applications and Issues Addressed

• Prevents compressor damage by monitoring refrigerant pressure
• Helps avoid system shutdowns caused by low or high pressure
• Ensures proper cycling of the air conditioning compressor
• Maintains consistent HVAC system performance
• Replaces faulty or worn pressure switches in Nissan Maxima models

Installation Notes and Tips

When installing the Four Seasons Pressure Switch 20987, ensure the system is depressurized and the vehicle is off. The switch mounts directly on the HVAC system using the 3/8 in. x 24 female fitting thread. Confirm the round female connector aligns properly with the vehicle wiring harness. Tighten fittings securely to prevent leaks but avoid over-tightening to protect threads. Verify electrical connections are clean and secure, utilizing the Weather Pack connector for a weather-resistant seal.

Quality Assurance and Warranty

This Four Seasons Pressure Switch 20987 meets or exceeds OEM specifications for Nissan Maxima HVAC systems. Manufactured with steel components and designed for system-mounted installation, it offers durability and reliable performance. The product includes a warranty that covers defects in materials and workmanship, providing confidence in its long-term use.