Can be added to any digital board (C-2001, C-2003, C-2006, C-2013, and C-2022), giving new functionally to older boards.
It is a drop in replacement for existing boards. There are no other changes needed.
All existing functionality of the C-2013 board is provided, with over-temp protection, IPS and P01 errors, special temp mode, and economy and overnight modes. The safety of the original design is kept.
It will keep the set temperature if power is lost, so you can put the tub on a timer.
The maximum temperature is configurable, so you aren’t limited to 104F (40C). Also, you can adjust the temperature to match the real tub temperature, if desired.
You can hold down the up or down arrows to rapidly change the tub temperature.
You can pause the pump for 20 minutes, even if it is calling for heat by pressing the jets button. You can have silence when you soak if you so desire.
It can optionally display the tub temperature even when the pump is off, and can provide a more accurate estimate of the actual tub temperature compared to the stock firmware.
It can be monitored and controlled with Wi-Fi using a Sonoff Elite, or a Shelly Uni Plus, along with an optional Wi-Fi adapter board. It works in conjunction with the existing control panel, keeping the safety and functionality of the system intact.
You can add additional or replacement buttons to control your hot tub.
There is a service menu that lets you change many of the parameters, like changing from Fahrenheit to Celsius.
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