The RectorSeal AquaGuard AG-1250E is an electronic condensate overflow switch designed to protect HVAC equipment by detecting water in auxiliary drain pans or other secondary containment areas. It utilizes solid-state sensing with no moving parts, offering a dependable solution for shutting down HVAC systems in the presence of water and preventing potential property or equipment damage.
System Application
This unit is used primarily in residential and light commercial HVAC systems to monitor water accumulation due to condensate line blockages or equipment drainage failure. It is field-configurable as either normally open or normally closed, supporting integration with system controllers or external alarm devices.
Key Features
Electronic Sensor: Solid-state probe detects water at a trigger depth of 1/16 inch
Universal Mounting: Can be installed horizontally or vertically in pans, on walls, or directly to equipment
Low-Profile Housing: Compact form factor supports tight-space installations
LED Status Indicator: Visual confirmation of moisture detection for service verification
Field-Selectable Output: Switch can be wired for normally open or normally closed operation
Adjustable Mounting Bracket: Allows control over sensing height to accommodate varied system layouts
Technical Specifications
Model: AquaGuard AG-1250E
Voltage: 24 VAC
Max Current: 5 Amps
Control Wire Length: 6 feet
Sensing Trigger Level: 1/16 inch water depth
Dimensions: Approx. 14" L x 8.27" W x 9.25" H (packaged)
Installation Notes
Unit should be installed by qualified HVAC technicians in accordance with local codes. The switch can be wired directly to low-voltage safety circuits in the air handler or connected to an isolation relay. Ensure that sensor surface is clear of debris and installed level with the pan floor or designated sensing area. Confirm polarity and control circuit logic before energizing the system.
Contractor Considerations
Solid-state design reduces failure rates compared to float-type switches
Supports integration into both new installations and retrofit service upgrades
Compatible with overflow safety protocols required by most building codes
Adjustable bracket enhances versatility across coil types and configurations
Summary
The RectorSeal AG-1250E electronic condensate safety switch offers solid-state reliability and flexible installation options for condensate overflow protection. Its compact design, fast response time, and field-adjustable mounting make it a preferred solution for preventing moisture-related HVAC system shutdowns or damage. Suitable for horizontal or vertical evaporator installations where secondary drain pans are used.