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The TORO rd900-int-r is a 9-station indoor irrigation controller from the Rain Dial-R series, designed for residential and light commercial irrigation systems. Operating on 24V AC, it controls up to nine individual valve zones, with one valve per station. The plastic enclosure is rated for indoor use and mounts directly to the wall, making it a straightforward replacement or new-installation choice for irrigation professionals and landscape contractors who need a reliable, low-voltage zone controller.
The rd900-int-r is suited for indoor installation in garages, utility rooms, mechanical spaces, or covered enclosures where the controller is protected from direct weather exposure. It supports a rain sensor input and a pump start relay input, allowing integration with rain shutoff devices and pump-driven systems. This makes it a practical fit for drip, spray, or rotor-based irrigation layouts where sensor-based water conservation is a system requirement.
Designed as an OEM-style replacement or new-installation controller for indoor-mounted 24V AC irrigation systems with up to 9 zones using standard solenoid valves.
Installation is typically performed by a licensed irrigation contractor or qualified electrician. Power down the existing controller and disconnect all zone wiring before beginning any replacement work. Low-voltage wiring connections should be made per the terminal labeling on the controller and in accordance with local irrigation and electrical codes. Verify rain sensor and pump start wiring compatibility before powering the system on.
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