Bunn IMIX-3S+ Installation & Operating Manual page 23

DRAINING THE HOT WATER TANKS
14. The screen will display SYSTEM WET TEST. Press the button under YES.
15. Press the button under COOL ESP TANK.
16. Press the button under START in the COOL ESP TANK screen.
17. The pump will begin running, and hot water will dispense into the container. After 4 minutes, the pump will
automatically stop.
18. Immediately disconnect the dispenser from the power source.
19. Remove the tube from the connector in the bottom of the espresso tank.
20. Swivel the tube towards the outside of the machine.
21. Empty the container used to capture the hot water from the tank, and place it on the right side of the machine.
22. Insert a 6mm OD tube into the bottom tank fitting, place the other end into the container.
23. Using a 4mm hex wrench, loosen the plug on the top of the espresso tank until the tank begins to drain.
24. After the tank is drained, retighten the plug.
25. Remove the drain tube from the bottom tank fitting.
26. Rotate the fitting towards the inside of the tank. Compressing the release sleeve on the fitting, fully insert the
pump tube.
27. Replace the left and right side panels.
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