Choose your product's manual for setup, everyday controls, maintenance, and troubleshooting.

Serin ControllerThe Wi-Fi controller connected to your indoor unit's CN105 port. Serin LinkThe dial for controlling your rooms.

Serin Controller

New controller? Start with the quick start. Already connected? Go directly to the task you need.

Quick startFrom checking your model to controlling the indoor unit. Choose your firmwareFind the route for the smart-home app you use. InstallationConnect the controller to CN105 and position the board and cable. Web interfaceOpen the web interface and adjust everyday controls. Room temperature sensorsUse a reading from the occupied part of the room. Customize ESPHomeConfigure optional features and build firmware for your controller. Updates, Wi-Fi and resetsMaintain an installed controller or recover its connection. TroubleshootingFind the cause of a flashing, pairing, or control problem.

Reference: controls, entities and diagnostics, status lights and buttons, DIY parts and supported boards, and CN105 wiring.

Serin Link

New dial? Start with setup and controls. Already connected? Go directly to the task you need.

Setup and controlsPair your dial, select rooms, and adjust temperature and airflow. Room and remote sensorsSelect the temperature source and configure a remote sensor. Firmware updatesCheck versions and update the dial's firmware. TroubleshootingResolve connection, pairing, sensor, and update problems.

Tools

These run in your browser. The setup and configuration guides link to them when you need them.

• Flash controller firmware: install firmware over USB from a computer.
• Flash Serin Link firmware: install the dial's firmware over USB.
• ESPHome YAML generator: create a configuration for your indoor unit and optional features.

Get help

Check compatibility, browse the FAQ, or contact support. For shared reference information, read safety, licenses and compliance, and security.