Supports up to four valves per decoder location for streamlined multi-zone control
Operates on standard 24-28 VAC from the two-wire path for broad compatibility
Shock and surge protected electrical components ensure durability in harsh environments
Freeze and heat rated for reliable performance in extreme climates
Reports failed solenoids and diagnostic status for proactive maintenance
Summarized by Shop
The Weathermatic SLDEC4 is a four-valve SmartWire decoder module designed for SmartLine controllers (SL1600 family and SL9600TW). It converts controller signals over a two‑wire path to operate up to four irrigation valves at each decoder location, simplifying wiring and reducing installation costs.
Four-valve decoder compatible with Smar
Valve Control Range
Up to 100 ft (30 m) from decoder
Input Voltage
24-28 VAC (from two-wire path)
Lead Gauge
14 AWG PVC-coated
Operating Temperature
-20 to 60°C
Installation
Indoor and outdoor valve box
Warranty
3 years with SLWire/SLCONN connectors, 2 years otherwise