Skip to main content

Operating the R2

Panel Overview​

Panel_Overview_md

Operating Modes​

The PRS Button (Preheat / Roast / Stop) cycles through the different modes of the R2: Ready, Preheat, Charge, Roast, Cooling, Shut Down, and Back-to-back Roasting.

Ready Mode​

Ready_md

In Ready Mode, the R2 is ready to begin preheating. The following list decribes the functions for each buttons in Ready Mode:

  • A
    • Toggle between different information on the Info Display
  • B
    • Toggle the data presented in °/MIN Display in the following sequence:
      1. B-ROR
      2. Differential Air Pressue
      3. Bean Temp
  • Heating Buttons
    • Select Preheat Temperature
  • Fan/Drum Buttons
    • N/A
  • F1
    • Access Settings Menu
  • F2
    • N/A
  • PRS
    • Prompt to Preheat Mode

Preheat Mode​

Preheat_md

In Preheat Mode, the R2 will preheat the Drum to your designated IBTS Temp. The Info Display will show 'PREHEATING'. Once the B-ROR stabilizes (approximately 20 minutes), the R2 will automatically go to Charge Mode. You can otherwise manually press PRS to prompt to Charge Mode.

The following list decribes the functions for each buttons in Preheat Mode:

  • A
    • Toggle between different information on the Info Display
  • B
    • Toggle the data presented in °/MIN Display in the following sequence:
      1. B-ROR
      2. Differential Air Pressure
      3. Bean Temp
  • Heating Buttons
    • Select a new Preheat Temperature (only before Charging)
  • Fan/Drum Buttons
    • N/A
  • F1
    • N/A
  • F2
    • N/A
  • PRS
    • Prompt to Charge Mode

Charge Mode​

Charge_md

In Charge Mode, the R2 is ready to roast. The Info Display will blink and announce “I am ready to roast”. To begin roasting, simply pour green beans into the Drum through the Funnel. Once loaded, the R2 will automatically detect the beans and prompt to Roast Mode.

Roast Mode​

Roasting_md

Congratulations; You are roasting coffee! The Power, Fan, and Drum Settings can all be adjusted during the roasting process. Check the following list to find the functions for each buttons in Roast Mode:

  • A
    • Toggle between different information on the Info Display
  • B
    • Toggle the data presented in °/MIN Display in the following sequence:
      1. B-ROR
      2. Differential Air Pressure
      3. I-ROR
  • Heating Buttons
    • Adjust Power Settings
  • Fan/Drum Buttons
    • Adjust Fan, Drum, or Cooling Settings
  • F1
    • Mark the First Crack
  • F2
    • Toggle between Fan, Drum, and Cooling Settings
  • PRS
    • Prompt to Cooling Mode

Cooling Mode​

Cooling_md

To enter Cooling Mode, press the PRS Button during Roast Mode.The Drum will set to D1 so it's spinning at the optimal speed for unloading the beans. This means that you should enter Cooling Mode before unloading the beans into the (Pro) Cooling Tray. The Cooling Fan and Exhaust Fan will run at C5 and F5 respectively. The Drum Speed will be set to D1. The C, F, and D settings can be adjusted to your preference.

If you want to start preheating for the next roast while the beans are cooling, you can press F1 to start the Back-to-Back Roast Mode. Again, you can set the new Preheat Temp as long as the R2 hasn't go to Charge Mode.

  • A
    • Toggle between different information on the Info Display
  • B
    • Toggle the data presented in °/MIN Display in the following sequence:
      1. B-ROR
      2. Differential Air Pressure
      3. I-ROR
  • Heating Buttons
    • Select Preheat Temp (only after pressing F1)
  • Fan/Drum Buttons
    • Adjust Fan, Drum, or Cooling Settings
  • F1
    • Prompt the R2 to Back-To-Back Roast Mode
  • F2
    • Toggle between Fan, Drum, and Cooling Settings
  • PRS
    • Prompt to Back-To-Back Roast Mode or Shut Down Mode

Shut Down Mode​

R2_C_Panel_Coolingroastermode_006

Press the PRS Button while in Cooling Mode to enter Shut Down Mode. The Cooling Fan will turn off and the R2 will start cooling down. The R2 goes back to the Ready Mode once the Drum Temperature is below 80°C (176°F). You can manually press the PRS Button to prompt the R2 into Ready Mode. The Drum and Exhaust Fan will continue running if the Drum Temperature is above 120°C (248°F).

Back-to-Back Roast Mode​

Backtoback_md

Pressing F1 in the Cooling Mode will prompt the R2 into the Back-to-back Roast Mode. The Cooling Fan will continue to run until the C Settings is set to C0. Select the new Preheat Temperature by pressing the Heating +/- Buttons. The R2 will Preheat to the previous Preheat Temperature if it's not adjusted.

Aillio Logo
© 2025 Aillio Technology