BUC Board Remove & Replace, Compact Chiller (CT 1.5, Sig CT 2.0)

Overview:

This guide will walk you through the step by step process to remove and replace the BUC Board (BUCB) in the compact chiller for Signature Countertop (CT 2.0) and Countertop 1.5 (CT 1.5).

In this article (click to jump)

• Required Tools & Parts
• Remove and Replace Procedure
  • Task 1: Depressurize the water system.
  • Task 2: Power Off the Bevi.
  • Task 3: Remove the chiller from the cabinet.
  • Task 4: Remove the left side panel.
  • Task 5: Remove the PCB panel.
  • Task 6: Remove the 24 V Power Supply.
  • Task 7: Removing the BUC Board.
  • Task 8: Install the new BUC Board.
  • Task 9: Reinstall the Chiller.
  • Task 10: Confirm Compact Chiller BUCB connection.
  • Task 11: Check For Updates
  • Task 12: Test the machine function.

Required Tools & Parts

• 720-0329 FRU - BUCB KIT
• #2 Phillips Screwdriver

Remove and Replace Procedure

Before Starting

• If the water supply tubing is long enough, you do not need to depressurize the water system.
• If you can verify the water supply tubing has enough slack to remove the chiller without disconnecting, you can start at Task 2.

Task 1: Depressurize the water system.

1. Turn off the water source to the Compact Chiller.
2. Open the front access panel.
3. Turn off the Buffer tank.
   • Rotate the shut off valve to the CLOSED position.

4. Turn off the CO2 tank.
5. Navigate to the Troubleshooting Tools screen.
   1. Touch the service icon in the upper left corner.
   2. Touch "Start Service"
   3. Enter the PIN to access the service panel.

6. On the left side of the screen, touch "Machine Alerts".
   • Touch "Troubleshooting Tools"

7. Place a container under the nozzle, and pour COLD and Sparkling water until water is no longer dispensing for either selection.

Task 2: Power Off the Bevi.

1. Power off the Bevi using the power switch on the front of the chiller.
2. Disconnect the power cord from the back of the chiller.

CAUTION: Do NOT disconnect the power cord before powering off the chiller.

Task 3: Remove the chiller from the cabinet.

1. Carefully lift the front of the chiller so the locating tabs on the bottom can come up and out of the ventilation holes.

2. Slide the chiller forward so the front hangs over the edge of the cabinet.
3. Remove the red locking clip and disconnect the 3/8" water supply line from the back of the chiller.
   • This step may not be necessary if there is enough slack on the water line to fully remove the chiller without putting tension on the tubing.

4. Lifting from the front and the rear grab handle, carefully lift the chiller out of the cabinet and place on the floor.
   • CAUTION: Take extra care to move the Chiller as carefully as possible. Keep the chiller flat and level as you move it to avoid any spillage from the Ice Bank.

Task 4: Remove the left side panel.

1. Using a #2 Phillips screwdriver, loosen the two screws securing the top panel of the chiller.
2. With the screws fully loosened, slide the panel up to release the locating tabs at the base.
3. Place the panel to the side.

Task 5: Remove the PCB panel.

1. Using a #2 Phillips screwdriver, loosen the two screws securing the PCB panel on the left side of the chiller.
2. With the screws fully loosened, lift the panel to release the lower locating tab and remove.
3. Place the panel to the side.

Task 6: Remove the 24 V Power Supply.

1. Remove the 24 V Power Supply from the PCB housing.
   1. Using a flathead screwdriver, push on the tab securing the power supply in the PCB housing and simultaneously pull on the power supply.
   2. Do not disconnect any wiring from the power supply.

Task 7: Removing the BUC Board.

1. Remove the BUC Board ground wire.
   1. Locate the ground wire at the bottom right corner of the BUC Board.
   2. Using a #2 Phillips screwdriver, remove the screw and disconnect the ground wire.
   3. Take care not to drop the mounting screw down into the chiller housing.

2. Disconnect the white four-pin Power Supply connector.
   1. There is a lock-latch on the right side of the connector.
   2. Depress the lock-latch to release the connector from the board.

3. Carefully disconnect all remaining connectors from the the BUC Board.
   1. Each connector has lock-latch on one side of the connector.
   2. Depress the lock-latch to release the connectors from the board.

TIP: It is helpful to work your way from the top down when disconnecting.

4. Once all connectors have been removed, release the BUC Board from the PCB housing.
   1. At the bottom edge of the board, firmly press down on the mounting tab to release the board.
   2. Carefully pull the bottom of the board forward to release it from the tab.
   3. Slide the board down and out of the PCB housing.

Task 8: Install the new BUC Board.

1. Unpackage the new BUC board.
2. Install the BUC Board into the PCB housing.
   1. Slot the top edge of the BUC Board into the clips at the top of the PCB housing.
   2. Firmly press in the bottom of the board until it audibly clicks into the bottom tab.

3. Reconnect all cable connectors to the BUC Board, with the exception of the white 4-pin Power Supply connector and the green/yellow ground wire.
   1. Each connector is unique, and cannot be plugged into the incorrect location.
   2. Ensure the connectors are fully seated, and click securely into place.

4. Using a Phillips screwdriver, reconnect the green/yellow ground wire to the BUC Board.
   • Securely tighten the screw, but do not overtighten.
5. Reconnect the white 4-pin Power Supply connector.
   • Ensure the connector is fully seated, and clicks securely into place.

6. Reinstall the 24 V Power Supply into the PCB housing.
   • Slide the power supply back into the PCB housing until the power supply clicks into place and the metal tab is secure.

Task 9: Reinstall the Chiller.

1. Reinstall the left side panel, and the PCB panel.
   1. Take care not to pinch any wiring in the panels.
   2. Ensure the locating tabs slot into place
   3. Tighten the screws to secure the panel.
2. Reconnect the chiller power cord.
3. Carefully lift the chiller into place in the cabinet.
   • Ensure the locating tabs on the bottom of the chiller fit into the ventilation holes and the chiller sits flush on the base of the cabinet.
4. If it was disconnected during removal, reconnect the 3/8" water supply tube.
   1. Ensure the tubing is fully seated into the push to connect fitting.
   2. Reinstall the red locking clip.
   3. Turn on the water supply.
5. If it was closed, open the Buffer tank.
6. Power on the chiller.

Task 10: Confirm Compact Chiller BUCB connection.  

1. Navigate back to the Service Panel.
   1. Touch the Service button in the top left, or bottom right corner of the main dispense screen.
   2. Touch "Start Service" on the right side of the screen.
   3. Enter the access code “1986”.
2. From the Service Panel, navigate to the Troubleshooting Tools menu.  
   1. Touch “Alerts & Maintenance” 
   2. Touch “Troubleshooting Tools”
3. In the “Data” column under the Electrical tab, verify the BUCB is connected.  
   1. You should see BUC Board Connected = YES. 
   2. If the BUC Board is not connected, power off the machine and troubleshoot the USB connections between the BUC Board and the SBC in the head unit.

Task 11: Check For Updates

After installing the new BUC Board, it is important to be sure the firmware is up to date. 

1. In the upper left corner of Troubleshooting Tools, check if there is an update available.  
   1. Touch the “UPDATE” button if present.  
   2. The Bevi will download the BUC Board firmware update. 

2. After downloading an update, the Bevi may need a restart. Touch “Restart” if a popup appears. 
3. Confirm that there are no updates available. 
   1. If the “UPDATE” button is still showing, press it again. 
   2. Once completed, it should read “Up To Date” in the top left corner of the Troubleshooting Tools menu.  

4. If you are unsure if the updates went through successfully, or if you need any assistance in confirming that the machine is up to date, please contact Bevi Support at 866-704-2384.  
   1. Bevi Support can assist in checking that the current software and firmware versions are up to date, and assist in pushing a remote update if required.

Task 10: Test the machine function.

1. Once updated, perform a full functionality test.
   1. Test all dispense options to verify the Bevi is functioning properly.
      1. Still Dispense
      2. Sparkling Dispense

If you have any questions or need further assistance, please contact Bevi Technical Services at support@bevi.co, or call our support line at 866-704-2384 (BEVI)