BUNN Axiom DV-3 Dual Voltage Automatic Commercial 12-Cup Coffee Maker Instruction Manual

1. Product Overview

The BUNN Axiom DV-3 is a dual voltage automatic commercial coffee maker designed for high-volume environments. It features a large 200 oz (5.9 L) tank for continuous brewing and three lower warmers to keep coffee at optimal serving temperature. This model incorporates advanced technologies like BrewWIZARD for simplified programming and BrewLOGIC for consistent brew levels, adapting to varying water pressure.

Image 1.1: Front view of the BUNN Axiom DV-3 Commercial Coffee Maker, showcasing its stainless steel construction and control panel.

2. Key Features

• Dual Voltage Adaptability: Operates at 120V/15 amp or 120/208-240V/20 amp.
• Large Tank Capacity: 200 oz (5.9 L) tank for back-to-back brewing.
• Three Lower Warmers: Maintains coffee temperature.
• Digital Brewer Control (BrewWIZARD): Simplifies programming of brew level, cold brew lock-out, and tank temperature via an LCD display.
• Automatic Water Pressure Adjustment: Adapts to varying water pressure for consistent performance.
• BrewLOGIC Technology: Calculates flow rate and adjusts brew time in high lime areas to maintain consistent pot levels.
• Digital Temperature Control: Ensures precise temperature for optimal coffee extraction.
• Pre-infusion and Pulse Brew: Controls coffee extraction for enhanced flavor.
• SplashGard Funnel: Deflects hot liquids away from the hand for safety.
• Automatic Warmer Shut-off: Enhances safety and energy efficiency.
• Energy-Saver Mode: Reduces tank temperature during idle periods.
• Electronic Diagnostics: Facilitates easier service and troubleshooting.

3. Setup

Before initial use, ensure the coffee maker is placed on a stable, level surface. This unit requires a direct water line connection for automatic filling. Consult a qualified plumber for proper installation of the water line to prevent leaks and ensure optimal performance. The unit is dual voltage adaptable; ensure it is connected to the appropriate power supply (120V/15 amp or 120/208-240V/20 amp) as per local electrical codes.

Refer to the dimensions diagram for space planning and installation requirements.

Image 3.1: Technical diagram illustrating the dimensions of the BUNN Axiom DV-3 coffee maker, crucial for installation planning.

4. Operating Instructions

4.1 Initial Start-up and Filling

1. After water line connection, turn on the main power switch. The tank will automatically begin to fill.
2. Allow the tank to heat to the set temperature (displayed on the LCD).

4.2 Brewing Coffee

1. Place a paper filter (#4 size recommended) into the SplashGard funnel.
2. Add desired amount of ground coffee to the filter.
3. Slide the funnel into the brew head.
4. Place an empty decanter (not included) on a warmer plate below the funnel.
5. Press the 'BREW' button on the control panel. The brewing cycle will begin.
6. Once brewing is complete, remove the decanter and place it on an available warmer.

4.3 Using Warmers

The unit features three warmers: one directly under the brew head (front) and two additional lower warmers (front and rear). Use the 'ENABLE ON/OFF WARMER' buttons on the control panel to activate or deactivate each warmer as needed. The automatic warmer shut-off feature will engage after a period of inactivity.

4.4 Hot Water Dispenser

A hot water dispenser is located on the front of the unit. To dispense hot water, push the red lever. Exercise caution as the water is hot.

Image 4.1: The BUNN Axiom DV-3 coffee maker in operation, with three carafes on the warming plates, demonstrating its capacity.

5. Maintenance

Regular maintenance ensures optimal performance and longevity of your coffee maker. Always unplug the unit and allow it to cool before cleaning.

5.1 Daily Cleaning

• Wipe down exterior surfaces with a damp cloth. Do not use abrasive cleaners.
• Clean the brew funnel and decanters with mild soap and water. Note: The item is not dishwasher safe.

5.2 Descaling (for High Lime Areas)

If operating in high lime areas, periodic descaling is necessary. The BrewLOGIC technology helps manage this, but manual descaling may still be required. Refer to the full product manual for detailed descaling procedures using appropriate descaling solutions. The built-in tank drain facilitates this process.

6. Troubleshooting

The BUNN Axiom DV-3 is equipped with electronic diagnostics to assist in identifying and resolving operational issues. If a problem occurs, check the LCD display for error codes or messages.

• No Water Flow: Check water line connection and ensure water supply is on. Verify the tank is filling.
• Coffee Not Hot Enough: Ensure warmers are activated and the tank temperature is set correctly via BrewWIZARD.
• Inconsistent Brew Levels: If in a high lime area, BrewLOGIC should compensate. If issues persist, descaling may be required.
• Error Messages: Consult the comprehensive product manual for specific error code interpretations and recommended actions.

For issues not resolved by basic troubleshooting, contact customer support or a certified service technician.

7. Specifications

Image 7.1: The BUNN Axiom DV-3 coffee maker positioned on a kitchen countertop, illustrating its compact commercial design.

8. Warranty and Support

For warranty information, please refer to the documentation included with your product or visit the official Bunn website. Bunn offers various protection plans for extended coverage, including 3-Year and 4-Year options, as well as a Complete Protect monthly plan.

For technical assistance, service, or to purchase replacement parts, please contact Bunn customer support. Ensure to have your model number (38700.0009) and serial number available when contacting support.