Bunn G9WD-RH service manual Coffee Grinding, Adjustments

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COFFEE GRINDING

1.Visually inspect the hopper for an ample supply of whole bean coffee.

2.Place a paper filter into the brew funnel. The filter must not be folded-over or tilted to one side.

3.Insert the funnel into the funnel rails until it stops.

4.Select batch size desired (e).

5.Momentarily press the “START” switch (a). The grinding will begin after a moment. The actual weight of the coffee being ground into the funnel will be shown on the display during grinding. The grinder will automati- cally stop when the correct weight is reached. DO NOT TOUCH THE FUNNEL OR FUNNEL HANDLE DURING

GRINDING. THIS WILL CAUSE THE INCORRECT WEIGHT OF COFFEE TO BE GROUND.

6.Remove the funnel from the grinder and level the bed of grounds by gently shaking.

7.The loaded funnel is now ready for use in any commercial drip coffee brewer according to the manufac- turer’s instructions.

ADJUSTMENTS

The grind can be set from fine to very coarse. The grind may be adjusted for use in most commercial coffee brewers. The following procedures should be used to make adjustments.

Burr Adjustment

1.Unplug the grinder and remove the hopper by pulling forward with the handle.

2.Plug-in the grinder, place funnel with filter into the funnel rails. Momentarily press the “START” button and release, run grind cycles until all of the coffee in the grind chamber is dispensed.

3.Remove two black screws from the lower control panel bezel.

4.Remove the control panel and hang the control panel on front of grinder by inserting metal tabs on the back of control panel into slots on the front of grinder.

5.Make sure funnel with filter is still in place in the funnel rails. Go to the “GRIND MOTOR” menu under the level 1 “SERVICE TOOL?” menu, and press the button under “ON” to start the motor. Slowly turn the adjust- ing screw in a clockwise direction until a metallic whine is heard due to the rubbing of the grinding burrs. Reverse the adjusting screw just until the whining stops. Turn off the motor and exit to home screen.

6.Remove the white plastic cap, and replace it on the end of the grinder with the “0” aligned with the adjusting screw slot.

7.The following settings approximately correspond to the CBC recognized grinds.

FINE GRIND: Rotate the adjusting screw to the “7” in a counterclockwise direction.

DRIP GRIND: Rotate the adjusting screw to the “8” in a counterclockwise direction.

REGULAR (COARSE) GRIND: Rotate the adjusting screw to the “12” counterclockwise direction. NOTE: Exact adjustment will vary according to bean roast or added flavoring

8. Reinstall front control panel.

Tabs into slots on front of grinder.

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Contents G9WD-RH BUNN-O-MATIC Commercial Product Warranty User Notices ContentsIntroduction Operating Controls Electrical RequirementsCoffee Grinding AdjustmentsCleaning Glossary Noyes Switches Enable DisableGround Coffee Counter Batch Size SettingGrinder Scale Calibration Coffee CalibrationModify Show Next Communicating with the GrinderCommunicating with the Grinder Switches Enabl Disable Level 2 Functions Problem Probable Cause Remedy TroubleshootingStart, replace motor Schematic Wiring Diagram G9WD-RH

G9WD-RH specifications

The Bunn G9WD-RH is a premier commercial coffee grinder designed for high-demand environments, such as cafes, restaurants, and coffee shops. Renowned for its efficiency, durability, and consistency, this grinder is an essential piece of equipment for any establishment that values quality coffee.

One of the standout features of the Bunn G9WD-RH is its powerful grinding capabilities. Equipped with a 1.1 horsepower motor, it can easily handle high volumes of coffee beans, making it ideal for busy locations. This grinder operates at a speed of approximately 3,600 RPM, allowing for quick and uniform grinding, which is crucial for achieving optimal flavor extraction.

The G9WD-RH utilizes a unique patented design for its burrs. The burrs are made of high-quality stainless steel and provide a precise grind size that can be easily adjusted. This adjustment can be made on the fly to suit various brewing methods, from espresso to French press, allowing baristas to tailor their grind to the specific needs of each beverage. The grinder has an intuitive control panel that enables users to control grind time accurately, ensuring that the desired amount of coffee is ground each time.

Another notable technology integrated into the Bunn G9WD-RH is its Smart Hopper. This innovative feature allows the grinder to hold up to 1 pound of coffee beans while also providing a built-in grinder activation that stops the grinding process once the hopper is empty. This not only prevents waste but also enhances the overall efficiency of the grinding process.

Durability is a hallmark of the Bunn G9WD-RH, constructed with robust materials that can withstand the rigors of a commercial environment. The unit features a heavy-duty metal housing and a shock-absorbent design that minimizes vibrations, reducing wear and tear over time.

Moreover, the Bunn G9WD-RH is designed for easy maintenance. The grinding chamber can be easily accessed for cleaning, ensuring that the grinder remains sanitary, which is vital for maintaining the quality of the coffee.

In summary, the Bunn G9WD-RH coffee grinder is a reliable and efficient machine that combines advanced technology with practical features, making it an invaluable asset for any coffee-focused business. Its high-performance capabilities paired with user-friendly operations ensure that it stands out in the competitive market of commercial coffee grinders.
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