Weathermatic SLM12-1600 12-station Expansion Module

Product Description

The WEATHERMATIC SLM12-1600 is a 12-station expansion module designed to increase the zone capacity of the SL1600 irrigation controller. It connects directly to the base controller to add 12 additional control stations, allowing irrigation professionals and landscape contractors to manage larger properties or more complex zone layouts without replacing the existing controller. The module is built to integrate seamlessly with the SL1600 platform, maintaining centralized programming and scheduling from the host unit. At 20 pounds, it is a substantial hardware component suited for commercial and large residential irrigation installations.

This expansion module is used in irrigation systems where the base SL1600 controller has reached its native station capacity and additional zones are required. Typical applications include commercial landscapes, golf course perimeter irrigation, municipal grounds, and large residential estates where multiple valve zones must be managed from a single controller. Installation is performed by licensed irrigation contractors or qualified landscape irrigation technicians familiar with the SL1600 controller platform.

Key Features

• Adds 12 independent control stations to the SL1600 irrigation controller
• Designed as a direct expansion module for the SL1600 platform
• Enables larger zone counts without replacing the base controller
• Supports centralized scheduling and programming through the host SL1600 unit
• Order increment of 1 for straightforward single-unit purchasing

Compatibility

The SLM12-1600 is designed as an expansion module for the Weathermatic SL1600 irrigation controller. Do not attempt to use this module with other controller models or platforms outside of the SL1600 series.

Installation Notes

Installation should be performed by a licensed irrigation contractor or qualified technician familiar with the SL1600 controller system. Power down the SL1600 controller completely before connecting or disconnecting the expansion module. Follow the SL1600 installation manual for proper module seating, wiring terminal connections, and station address configuration. Verify all valve zone wiring before restoring power and running a system test.

Technical Specifications

• Number of Stations: 12
• Weight: 20 pounds
• UPC: 78053411562

Standard Information

• Brand: WEATHERMATIC
• Manufacturer Part Number: SLM12-1600