The Irrigander 8 expander is an 8 zone irrigation expander designed to expand medium size systems that have enough outputs available on the irrigation controller to drive the additional zones.

The Irrigander 8 expander is comprised of two modules: an Encoder that is installed close to or inside the sprinkler controller; a Decoder that is installed close to the valves to be controlled.  The 4 field control wires attached to the irrigation controller's output controlling the 4 valves to be expanded are disconnected and connected to the 4 outputs on the Irrigander 8 expander's Encoder. The 8 inputs to the Encoder are connected to any available 8 irrigation controller outputs. The 4 field wires are connected to the Decoder and the outputs from the decoder are connected to the original 4 valves plus up to 4 additional valves (Irrigander 8 Expander diagram). The Irrigander 8 expander can drive up to 8 zones in the irrigation system depending on the number of field wires. For installations with more than 4 field wires to the valves, the Irrigander 8 expander will use 4 field wires to drive 8 zones allowing the additional wires to be used for additional valves. Detailed specifications and operating instructions are in the User Guide, available below. Application information is available on our Applications page.