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Weathermatic - SLDEC4 - Four Valve Decoder

Weathermatic SLDEC4 Four-Valve SmartWire Decoder Module

Brand: Weathermatic
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$731.52
$557.78
SKU SLDEC4

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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 SmartWire SLDEC series and programmable via the decoder module.
  • Operates on 24–28 VAC from the 2‑wire path; protected against shock and surge.
  • Sealed electrical components, 14‑gauge PVC‑coated leads, and freeze/heat rating −20° to 60°C.
  • Effective valve control up to 100' (30 m) from the decoder; reports failed solenoids and diagnostic status.
  • Auto shut-down if communication is lost; designed for indoor/outdoor valve box installation.
  • Ideal for commercial sites and large residential installs where reducing trenching and wire costs matters.

Includes downloadable wiring diagrams and the owner’s manual. Confirm compatibility with your SmartLine controller and use SLWIRE/SLCONN splice kits for buried installations. Warranty: SmartWire products carry a 3‑year warranty when used with SLWIRE/SLCONN connectors (2 years otherwise).

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Frequently Asked Questions

What controllers are compatible with the SLDEC4 decoder?
Compatible with SmartLine SL1600 family and SL9600TW controllers; programs addresses via the decoder module.
How far from a valve can the SLDEC4 operate reliably?
Controls valves up to 100' (30 m) from the decoder when installed with proper wiring and splice kits.
Does the SLDEC4 offer diagnostics and surge protection?
Yes — it reports failed solenoids, provides diagnostic status to the decoder module, and includes shock and surge protection.
What wiring and burial materials are recommended for SmartWire decoders?
Use 14‑gauge PVC‑coated SLWIRE with SLCONN splice kits for direct burial; follow the included wiring diagrams.

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