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[Guide] Bevi Standup 2.0 CO2 Regulator Assembly - Remove and Replace

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[Guide] Bevi Standup 2.0 CO2 Regulator Assembly - Remove and Replace

Overview

This guide will walk you through the step by step process for removing and replacing the CO2 Regulator Assembly in a Bevi 2.0 Standup unit.

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Frequently Asked Questions

Q: Where is the CO2 Regulator Assembly located?

A: The CO2 Assembly is at the plumbing shelf in the back side of the Bevi 2.0

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Q: What components does the CO2 Regulator Assembly include? 

A: The CO2 Regulator Assembly is made up of 3 main components

  1. High Pressure Hose with CGA-320 tank connection
  2. CO2 Pressure and Temperature Sensor
  3. CO2 Pressure regulator

 

Q: When would I need to replace the CO2 Regulator Assembly

A: Add hyperlinks for co2 leak and carbonation troubleshooting guides

Required Tools & Materials

  • #2 Phillips screwdriver
  • Large adjustable wrench
  • ⅜” Combination wrench or socket wrench
  • Flush cut cable snips
  • Zip ties
  • Small bucket
  • Spray bottle with soapy water solution

Removing the CO2 Regulator Assembly

Task 1: Enter the Service Panel to open the door to the Bevi 2.0

  1. Select Explore on the main dispense screen.
  2. Once in the Explore Area, look for the Service panel button in the upper left corner of the screen and press to enter the service panel. 

  1. Enter the access code “1986”.
  2. The door should open.  If it doesn't, press the “Open Door” button.

Task 2: Disconnect CO2 tank

  1. Once the door is opened, locate the CO2 tank.  
    1. CO2 tank is located inside the door at the base of the machine
  2. Turn off co2 tank
    1. Turn tank valve clockwise to turn off
  3. Using and adjustable wrench, disconnect high pressure hose from tank

Task 3: Access the Troubleshooting Tools menu

  1. From the main Service Panel screen, press the “Machine Alerts” button
  2. On the lower left hand side of the Machine Alerts screen, press “Troubleshooting Tools”

Task 4: Depressurize the CO2 Regulator Assembly

  1. In the Troubleshooting Tools menu, locate the Dispense controls in the lower left corner
  2. Place a small bucket under the dispense nozzle
  3. Press and hold the “POUR” button for sparkling water
  4. Pour ~1 Liter of sparkling water
    1. This will depressurize the CO2 supply to make it easier to disconnect the tubing from the push-to-connect fitting on the CO2 assembly

 

Task 5: Power off and remove both the top and center panels from the back of the Bevi 2.0

  1. Power off the Bevi
    1. At this point you will be working closely around some delicate electronics inside the machine. It is important the machine is turned off to avoid damaging any electrical components.  
  2. Loosen the #2 Phillips screws in the corners of the panels
    1. You do not need to fully remove the screws, only loosen a few turns
  3. Once loose, you can lift the panels up and off of the mounting screws

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Task 6: Disconnect the CO2 tubing from the CO2 Regulator Assembly

  1. Remove the locking clip from the push-to-connect fitting
  2. Disconnect the ¼” CO2 tubing from the Regulator Assembly

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Task 7: Disconnect the CO2 Pressure Sensor wiring

 

  1. Disconnect the CO2 Pressure Sensor cable from the BUC Board
    1. The Pressure Sensor connector is located along the bottom, far right corner of the BUC Board

 

  1. Cut any zip ties securing the Pressure Sensor cable
    1. The Pressure Sensor cable runs from the CO2 assembly up to the BUC Board.  
    2. Cut zip ties securing the Pressure Sensor cable to any other wiring
    3. Pull the Pressure Sensor cable through the access hole 

NOTE: BE EXTREMELY CAREFUL NOT TO CUT OR DAMAGE ANY WIRING

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Task 8: Removing the CO2 Regulator Assembly

  1. Remove mounting hardware for CO2 Regulator Assembly
    1. The CO2 Regulator Assembly is secured with two P-Clamps, attached to the chassis with two ⅜” nylock nuts
  2. Using a ⅜” wrench or socket, remove the two nuts holding the p-clamps to the chassis
    1. Note the orientation of the p-clamps for reinstallation
  3. Once mounting hardware is removed, the CO2 Regulator Assembly can be removed by carefully pulling the co2 assembly out from the back of the machine
    1. Note the routing of the high pressure CO2 hose for reference during reinstallation




Installing the new CO2 Regulator Assembly

 

Task 1: Mounting the new CO2 Regulator Assembly

  1. Feed the high pressure hose through the access hole to the front of the machine
    1. The high pressure hose fits through between the chassis and the buffer tank
    2. Feeds out the front of the machine from access hole behind the filter

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  1. Mount the new CO2 Regulator Assembly to the chassis
    1. Install the new p-clips onto the CO2 Regulator Assembly
    2. Mount the p-clips onto the threaded studs in the chassis
      1. The CO2 Regulator assembly should “hang” from the studs
      2. Installing the hardware upside down will cause the CO2 supply tube to be too short
  2. Reinstall the two ⅜” nylock nuts and tighten

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Task 2: Reconnect CO2 supply tubing

  1. Connect ¼” CO2 supply tube to the CO2 Regulator 
    1. Ensure that the tubing is fully seated into push-to-connect fitting
    2. Reinstall red locking clip

 

Task 3: Reconnect pressure sensor cable

  1. Route the new cable through the access hole to the BUC Board
  2. Plug pressure sensor connector into the BUC Board
    1. Ensure connector is fully seated and clicks into place
  3. Install new zip ties to secure cabling

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Task 4: Reconnect high pressure hose to CO2 tank

  1. Tighten the high pressure hose onto the CO2 tank
    1. The tank connection has a new gasket already installed, do not add an additional washer
  2. Turn the tank valve counter clockwise to open the CO2 tank

Task 5: Power on the Bevi

  1. Now that we have completed the work inside the Bevi, it is safe to power the machine back on

Task 6: Confirm that you have adequate CO2 pressure

  1. Once the new CO2 Regulator Assembly is fully installed and pressurized, it is important to check the system for any leaks and that the pressure sensor is working properly
  2. With the CO2 tank turned on, check the the CO2 pressure reading
    1. Locate the “Data” section of the Troubleshooting Tools menu
    2. In the “Chiller” data, you will find the CO2 pressure reading
    3. You should see at least 700psi
      1. If you have NO CO2 pressure, make sure your CO2 tank is open
      2. If your CO2 pressure is much lower than 700psi, check both the high pressure hose, and the CO2 supply tubing for any twist or kinks
      3. If the are no issues with the high pressure hose or the supply tubing, your CO2 tank may be low

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Task 7: Check for leaks

  1. Using soapy water, spray down all fittings and connections for the CO2 Regulator assembly.  Leaks will present with small bubbles coming from the fitting or connection
    1. Check the high pressure hose and all connection points at and around the tank
      1. If leaking from the tank connection, recheck that the nut is properly tightened onto the tank
      2. If leaking from any of the other fittings shown below, the high pressure hose assembly may be faulty

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  1. Check the CO2 Pressure Sensor and Regulator Assembly for leaks
    1. Repeat the soapy water test on all connections and fittings

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Task 8: Test your sparkling dispense

  1. From the Troubleshooting Tools menu, pour sparkling water using the dispense controls
    1. Check and make sure your sparkling dispense is functioning properly
    2. Dispense ½ liter of sparkling water

  1. If sparkling dispense is functioning, reinstall back panels, and close door
  2. If sparkling dispense has little or no carbonation, purge the carbonator
    1. Turn off buffer tank
    2. Turn off source water
    3. Dispense sparkling from TT tools until only CO2 gas is coming out from nozzle
    4. Turn on buffer tank
    5. Turn on source water 
  3. Dispense SPARKLING for 5 seconds, then wait 30 seconds (demand pump will run attempting to fill carbonation tank, then shut off). 
  4. Repeat the 5-second dispense + 30 second wait until the Carbonator Fill reads "Yes" (this should take 5 - 10 cycles)
  5. Dispense COLD water purge any trapped air
  6. Dispense a drink to ensure all is working properly
  7. Replace Back Panels

 

If after following the above steps and you cannot resolve the issue please escalate your issue to support@bevi.co