Rectorseal SMD-SS2AP Condensate Overflow Switch

Product Description

The RECTORSEAL SMD-SS2AP is a float-activated condensate overflow safety switch built for plenum and confined space installations. It monitors primary or secondary drain lines and closes a low-voltage control contact when rising condensate reaches the activation threshold, triggering HVAC equipment shutdown or a remote alarm signal. The plenum-rated housing meets fire and smoke compliance requirements for air-handling space installation. Lead wires are included for direct integration into low-voltage control circuits. Licensed HVAC technicians install this switch as part of standard condensate protection practice on residential and light commercial systems.

The SMD-SS2AP fits residential and light commercial HVAC applications where condensate overflow protection is required. It is suited for installation in plenum spaces, attic air handlers, horizontal units, and other confined locations where a standard non-rated switch would not meet code. The mechanical float assembly operates without external power, relying solely on rising condensate to activate the control contact and interrupt the equipment circuit or signal an alarm.

Key Features

• Float-activated mechanical design requires no external power to operate
• Plenum-rated housing approved for installation in air-handling and confined spaces
• Closes low-voltage control contact on condensate rise for equipment shutdown or alarm integration
• Lead wires included for straightforward low-voltage control wiring hookup
• Supports both primary and secondary drain line overflow detection

Compatibility

Designed as an OEM-style replacement and new-installation condensate overflow switch for residential and light commercial HVAC systems requiring plenum-rated overflow protection.

Installation Notes

Installation should be performed by a licensed HVAC technician familiar with low-voltage control wiring and local mechanical codes. Power down the air handler and disconnect the control circuit before wiring the switch leads into the shutdown or alarm loop. Ensure the switch is mounted level so the float operates freely and activates at the correct condensate level. Follow manufacturer instructions and applicable local codes for plenum-space wiring and condensate management.

Technical Specifications

• Switch Type: Float-activated condensate overflow safety switch
• Housing Rating: Plenum-rated
• Contact Function: Closes on condensate rise (low-voltage control circuit)
• Installation Environment: Plenum and confined spaces
• Application: Primary and secondary condensate drain overflow detection

Standard Information

• Brand: RECTORSEAL
• Manufacturer Part Number: SMD-SS2AP