Lennox 22J88 – DiversiTech Asurity CS-3 Condensate Safety Overflow Switch, Pan Switch

 

The Lennox 22J88, featuring the DiversiTech Asurity CS-3 Condensate Safety Overflow Switch, is a reliable overflow protection device engineered to prevent water damage caused by clogged or backed-up condensate drain systems. Designed for residential and light commercial HVAC units, this pan-mounted safety switch shuts off the system instantly when rising water is detected in the drain pan, helping protect air handlers, furnaces, and surrounding property.

This switch is built with durable materials, simple wiring connections, and a universal design for quick installation in secondary drain pans. With a compact form factor and dependable trigger action, the CS-3 helps maintain system safety and supports HVAC contractor best practices for condensate management.

 

Key Features

 

• Fits directly into secondary drain pans for fast installation
• Automatically shuts down the HVAC system when water rises in the pan
• Prevents costly water damage from condensate overflow
• Simple two-wire connection compatible with most HVAC systems
• Compact, durable, and suitable for residential or commercial setups
• Ideal upgrade or replacement safety switch for air handlers and furnaces

 

Technical Specifications

 

• Model: Asurity CS-3 (Pan Switch)
• Type: Condensate safety overflow switch
• Connection: Two-wire normally closed circuit
• Application: Secondary drain pans on HVAC systems
• Action: Opens circuit when water level rises