Universal Air SW11219C HVAC Binary Switch

Universal Air Binary HPCO/LPCO Switch SW11219C

Universal Air SW11219C is a binary HVAC switch for air conditioning systems that require high-pressure cutout and low-pressure cutout protection. It is a direct-fit style service part for select Nissan applications, including 1989-1994 Nissan 240SX, 1990-1994 Nissan Sentra, and 1991-1993 Nissan NX.

Key Features

• Binary HPCO/LPCO switch for HVAC refrigerant circuit protection
• Fits 1989-1994 Nissan 240SX, N/A
• Fits 1990-1994 Nissan Sentra, N/A
• Fits 1991-1993 Nissan NX, N/A
• Part number SW11219C for ordering and catalog lookup

Product Details

This Universal Air Binary HPCO/LPCO Switch is used in automotive air conditioning systems to monitor refrigerant pressure and trigger compressor protection logic when pressure moves outside the normal operating range. For Nissan 240SX, Nissan Sentra, and Nissan NX applications, SW11219C supports HVAC service work where the original binary switch has failed or the system requires a correct replacement for pressure safety control. The part number SW11219C is also useful when cross-checking HVAC switch listings for these Nissan models.

Common Issues It Can Address

• Compressor cycling problems caused by a faulty pressure switch
• A/C system shutdown from incorrect high-pressure or low-pressure signal
• Intermittent cooling performance related to switch failure
• HVAC diagnostic trouble related to pressure protection input
• Replacement needs during A/C system repair or retrofit service

Installation Notes

Verify the existing switch style, connector, and system pressure requirements before installation. Recover refrigerant and follow proper HVAC service procedures before removing or replacing the switch. Confirm correct operation after installation by checking compressor engagement and pressure-related cutout behavior. Compatible With 1989-1994 Nissan 240SX, 1990-1994 Nissan Sentra, and 1991-1993 Nissan NX applications listed for this part.

Quality Assurance

Universal Air supplies HVAC service components for automotive air conditioning repair. This part cross-references common HVAC service listings for the same application under part number SW11219C.