Commercial-Grade Expandable AC Control for Large Landscapes
The Galcon 800248 AC-24 Controller (TGL8M) is a powerful, commercial-grade irrigation timer designed to handle extensive and growing landscape projects. Housed in a durable exterior cabinet built for hardwired outdoor installation, this base model controls 8 stations out of the box but is easily expandable up to a massive 24 stations using 4-station add-on modules (TGLMOD4). When paired with standard 24V AC irrigation valves, the Galcon 800248 provides unmatched reliability for large-scale residential, municipal, and commercial agricultural setups.
What makes the Galcon 800248 truly exceptional is its incredible versatility. It features two distinct modes of operation: you can group valves together using standard weekly/cyclical programming (up to 3 programs), or you can program each valve completely independently. Need to manage more than just water? This controller includes a unique auxiliary program specifically designed to automate landscape lighting or water features. With extensive watering durations from 1 minute up to 9 hours, water budgeting, and a dedicated master valve port, this AC timer delivers professional-level control for any application.
- Highly Expandable: Starts with 8 base stations and effortlessly scales up to 24 total stations by installing 4-station add-on modules as your landscape grows.
- Auxiliary Program: Features a dedicated auxiliary program perfect for automating outdoor landscape lighting, fountains, or other water features.
- Two Operation Modes: Choose between standard 3-program weekly/cyclical grouping, or enjoy total flexibility with independent programming for every single valve.
- Water Budgeting: Make quick, global adjustments to the watering durations of all stations on a program at once to easily adapt to changing seasonal weather.
- Extended Durations: Provides massive flexibility with station run times ranging from just 1 minute up to 9 continuous hours.
- Hardwired Reliability: Designed for permanent, hardwired exterior installation, supplemented by a 9-volt battery backup to save settings during power outages.
Detailed specifications for system planning.
| Specification | Details |
|---|---|
| Controller Type | AC Powered, Expandable Multi-Station |
| Stations | 8 Base Stations (Expandable up to 24) |
| Power Requirement | Hardwired AC Power |
| Programs & Start Times | 3 Programs (or Independent), up to 4 start times per day |
| Run Time Duration | 1 Minute to 9 Hours |
| Watering Intervals | 1 to 30 Days |
| Backup Power | One 9-Volt Alkaline Battery (Not Included) |
| Compatible Valves | Standard 24V AC Solenoid Valves |
| Sensor & Pump Ports | Rain Sensor and Master Valve / Pump Start |
| Warranty | 3-Year Manufacturer Warranty |
| MPN | 800248 (TGL8M) |
Get your commercial AC controller running smoothly.
Step 1: Mount & Hardwire the Enclosure
Secure the exterior housing to an outdoor wall. Since this is a hardwired model, connect the internal transformer directly to your AC electrical supply strictly following local electrical codes (professional installation recommended).
Step 2: Install Backup Battery
Install a fresh 9-volt alkaline battery inside the control panel to maintain your clock and programming memory during power outages.
Step 3: Wire Valves & Modules
Run multi-strand wire from your 24V AC valve manifolds to the controller. Connect the common wire and individual station wires. If expanding beyond 8 stations, snap in your 4-station add-on modules (TGLMOD4) and wire accordingly.
Step 4: Select Mode & Program
Choose whether to use standard weekly/cyclical programming or set the controller to operate each valve independently. Input your desired intervals and durations (from 1 minute up to 9 hours).
