Searchanise add-on is shipped with CS-Cart distributions by default starting from version 2.2.5 (CS-Cart 3.0.1 does not have it).
To install the Searchanise add-on in CS-Cart:
In the store administration panel, go to Add-ons → Manage Add-ons
Find Searchanise and click the Install button next to the add-on name:
Activate the add-on:
Click the gear button, then click Settings
Click Connect Store to Searchanise:
Your store will be automatically registered in the Searchanise database and a request for the initial indexation will be added to the scheduled task queue.
After the indexation is finished, you can immediately start using Searchanise.