Appendix III
97
Master Valve and Pump Set-up Tips
To supply water to the various valves located throughout an irrigation area, systems use either a master valve or
master pump. By recognizing a specific Address and switch code, the controller sends a signal telling the decoder
when to activate the valve or pump. The switch code can vary depending on how your system was installed.
Below, we will cover some of the more common installations.
Using a Field Decoder With a Pump
In this installation, a field decoder attaches to a pump using a relay. Rain Bird
®
recommends you use Relay-100.
Please see the illustration below. When setting up the controller, enter the field decoder Address in the pump
Address field. The switch code for the above Relay-100 is 4FFA20.
With the above setup, the flow sensor monitors the flow rate, sending the information to the controller. Once the
flow exceeds the maximum rate during irrigation, and an alarm flow or leakage schedule is set, the controller will
automatically shut off the pump and all the decoders and valves.
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