The Irrigander 4/8 expander is an 8 zone irrigation expander designed to expand systems that do not have additional outputs available on the irrigation controller. The Irrigander 4/8 irrigation expander has 4 inputs that drive four output zones normally. However while each of those four zones are running, the microprocessor in the Encoder records the run times on each zone. After the Zone 4 input completes the Irrigander 4/8 expander will run the second set of 4 zones with the recorded timings.

The Irrigander 4/8 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 4/8 expander's Encoder. The 4 inputs to the Encoder are connected to the 4 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 4/8 Expander diagram). Detailed specifications and operating instructions are in the User Guide, available below. Application information is available on our Applications page.