How do I install the Skydrop Expansion Module?

In by Mack Dalley

The Expansion Module will allow you to increase your Skydrop Controller from 8-zones to 16-zones. It will also allow the addition of a Rain or Flow Sensor to your existing system.

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For assistance with installation of your Skydrop Controller, please click here for our video.

The Expansion Module can be installed after installation of the Skydrop Controller is complete.


Follow these steps for assistance with the Expansion Module installation:

1- Ensure the wall plate from the Skydrop Controller is installed securely. Check that zones 1-8 are properly connected.
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*Prior to connecting the Expansion to the wall plate, you can select to feed the wiring through the bottom or from the back side of the Expansion plate.

2- Connect the Expansion Module to the wall plate as shown: Align the snap pegs on the back with the holes on the wall plate, then press firmly until secure:

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3- Feed the wires into the Expansion module; either through the bottom or the back. Push each valve wire firmly into the zone posts and tug slightly to ensure they are secure:


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4- Place the Controller on to the Expansion. Align the snap pegs on the back of the Controller to the holes in the Expansion Module, then push firmly until it’s secure.

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*The Skydrop logo on the front of the Controller will illuminate once it is powered on.   

Congratulations! You have successfully installed the expansion module!