BUNN DV APS Axiom Dual Voltage Airpot Coffee Brewer User Manual

1. Introduction

This manual provides detailed instructions for the safe and efficient operation, installation, and maintenance of your BUNN DV APS Axiom Dual Voltage Airpot Coffee Brewer. Please read this manual thoroughly before operating the brewer and retain it for future reference. This brewer is designed for commercial use, brewing directly into 1.9 to 3.0 liter airpots (airpots not included).

Figure 1: Front view of the BUNN DV APS Axiom Coffee Brewer, showing the main unit with an airpot placed underneath the brew funnel.

2. Important Safety Information

Always follow basic safety precautions when using electrical appliances to reduce the risk of fire, electric shock, and injury to persons.

• Electrical Safety: This appliance is dual voltage adaptable and can operate at 120V/15 amp or 120/208-240V/20 amp. Ensure the correct voltage and amperage are used as specified on the product label. Improper electrical connection can cause severe damage or injury.
• Hot Surfaces: The brewer contains hot water and surfaces that can cause burns. Exercise caution when operating, cleaning, or performing maintenance.
• Water Connection: Connect the brewer to a potable water supply only. Ensure all water connections are secure to prevent leaks.
• Proposition 65 Warning: This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
• Maintenance: Disconnect power before cleaning or servicing. Only qualified personnel should perform maintenance beyond routine cleaning.

3. Setup and Installation

3.1 Unpacking

Carefully remove the brewer from its packaging. Inspect for any shipping damage. Retain packaging for future transport or storage.

3.2 Placement

Place the brewer on a level, stable surface capable of supporting its weight when full. Ensure adequate clearance around the unit for ventilation and access.

3.3 Water Connection

Connect the brewer to a cold water supply with a minimum flow pressure of 20 psi (138 kPa) and a maximum of 90 psi (620 kPa). Use a shut-off valve and a water filter for optimal performance and longevity.

3.4 Electrical Connection

The brewer is designed for dual voltage operation. It can be configured for 120V/15A or 120/208-240V/20A. Consult a qualified electrician for proper wiring and voltage conversion if necessary. The main ON/OFF switch is located on the back of the unit.

Figure 2: Rear view of the BUNN DV APS Axiom Coffee Brewer, showing the main ON/OFF switch and electrical connection points.

3.5 Initial Fill and Heating

1. Ensure the brew funnel is empty and properly seated.
2. Turn on the water supply.
3. Flip the main ON/OFF switch (located on the back) to the 'ON' position.
4. The tank will begin to fill and heat. This process may take 15-20 minutes for the first fill. The LCD display will show 'READY TO BREW' and the water temperature when ready.

4. Operating Instructions

4.1 Control Panel Overview

The front panel features an LCD display and control buttons for programming and operation. The BrewWIZARD technology simplifies programming.

Figure 3: Close-up of the control panel on the BUNN DV APS Axiom Coffee Brewer, showing the LCD display and brew buttons.

4.2 Brewing Coffee

1. Place a clean airpot under the brew funnel.
2. Insert a BUNN coffee filter into the brew funnel.
3. Add the desired amount of ground coffee to the filter.
4. Slide the brew funnel into position.
5. Press the 'BREW' button on the control panel. The brewing cycle will begin.
6. Once brewing is complete, carefully remove the brew funnel and discard the used grounds and filter.

4.3 Hot Water Dispensing

The brewer is equipped with a hot water faucet. To dispense hot water, simply press the lever on the faucet. Exercise caution as the water is very hot.

4.4 Programming Settings

The BrewWIZARD technology and LCD display allow for precise control over brewing parameters:

• Brew Level: Adjust the volume of coffee brewed per cycle.
• Cold Brew Lock-out: Prevents brewing if the water temperature is below optimal.
• Tank Temperature: Fine-tune the water temperature for optimal extraction.
• Pre-infusion: Allows coffee grounds to bloom before full brewing, enhancing flavor.
• Pulse Brew: Controls the flow of water over the coffee grounds for improved extraction.
• Energy-Saver Mode: Reduces tank temperature during idle periods to conserve energy.

Refer to the on-screen menu via the LCD display for detailed programming steps.

5. Maintenance and Cleaning

Regular cleaning and maintenance are crucial for the longevity and performance of your brewer.

5.1 Daily Cleaning

• Wipe down the exterior surfaces with a damp cloth. Do not use abrasive cleaners.
• Clean the brew funnel and sprayhead after each use.
• Empty and clean the drip tray regularly.

5.2 Descaling

Mineral deposits from water can build up over time, affecting performance. Descale the brewer periodically (frequency depends on water hardness) using a commercial descaling solution designed for coffee brewers. Follow the descaling product's instructions carefully.

5.3 Filter Replacement

Ensure you use appropriate paper filters for brewing. Replace the water filter (if installed) according to the manufacturer's recommendations to maintain water quality and prevent scale buildup.

6. Troubleshooting

Refer to the table below for common issues and their solutions.

7. Specifications

8. Warranty and Support

BUNN products are manufactured to the highest quality standards. This product comes with a limited warranty covering defects in materials and workmanship. For specific warranty terms and conditions, please refer to the warranty card included with your product or visit the official BUNN website.

For technical assistance, troubleshooting not covered in this manual, or to order replacement parts, please contact BUNN Customer Service. Have your model number (38700.0010) and serial number ready when contacting support.

BUNN Customer Service:
Website: www.bunn.com
Phone: Refer to your product documentation for regional contact numbers.