If using the Affinity Collection of controls, you will need to download the Bromic App to complete the installation and control the heaters.
Once set-up, the App account can be linked to your Google Home or Alexa account to enable voice controls, or the accessory board can be used to integrate with common home automation systems via 0-10V.
Alternatively, you can choose to install manual switches as an alternative to the App based controls [be sure to link to the switches].