Bunn AF PR-3 service manual Service, Component Access

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SERVICE

This section provides procedures for testing and replacing various major components used in this dispenser should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel. The dispenser should be unplugged when servicing, except when electrical tests are re- quired and the test procedure specifically states to plug-in the dispenser.

COMPONENT ACCESS

WARNING - Disconnect the dispenser from the power source before the removal of any panel or the replace- ment of any component.

All components are accessible by removing the eight #8-32 screws (five on the front and three on the rear) securing the main housing to the main mounting panel. Refer to Fig. 1

Refer to the contents listing for component loca- tion.

Contents

 

Circuit Board

8

Fuse & Fuse Holder

9

Main ON/OFF Switch

10

Probe LOW/OFF/HIGH Switches

11

Refill ON/OFF Switches

12

Vacuum/Supply Pump Assembly

13

Vacuum/Supply Pump Tubing Installation

14

Vacuum Switches

15

Wiring Diagrams

16,17

 

 

P1561

 

FIG. 1 COMPONENT ACCESS

 

 

 

 

 

 

 

7

28791.1 011500

 

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Contents Bunn AF PR-2 AF PR-3 Introduction WarrantyUser Notices Electrical Requirements Initial SET-UPElectrical Hook-Up Troubleshooting CleaningRecommended Weekly Cleaning Refill Circuit ON/OFF Main Power ON/OFFProbe Control BOX LOW/OFF/HIGH Problem Probable Cause Remedy TroubleshootingComponent Access ServiceCircuit Board Circuit BoardFuse Holder Fuse and Fuse HolderMain ON/OFF Switch ServiceProbe System Refer to when reconnecting the wires#3 AFPR-3 only Refill SwitchesVACUUM/SUPPLY Pump Assembly VACUUM/SUPPLY Pump AssemblyHead cavity VACUUM/SUPPLY Pump Tube Installation#3#1 Vacuum Switches28791.1 28791.1

AF PR-3 specifications

The Bunn AF PR-3 is a high-performance coffee brewer designed for commercial use, particularly in cafés, restaurants, and other settings where quality coffee must be brewed quickly and efficiently. Known for its exceptional reliability and innovative features, the Bunn AF PR-3 has become a popular choice among coffee professionals.

One of the standout features of the AF PR-3 is its ability to brew up to 3 gallons of coffee per hour. This capacity makes it ideal for busy environments where a quick turnaround is essential. The brewer uses a patented technology that ensures optimal brewing temperature and extraction time, resulting in a rich, full-bodied flavor profile in each cup.

Another significant aspect of the Bunn AF PR-3 is its automatic features. With a programmable digital display, users can easily select brew settings and adjust individual preferences. This user-friendly interface simplifies operation and allows baristas to focus on crafting the perfect coffee every time. The unit also comes with a built-in hot water faucet that enables the brewing of other beverages, such as tea or instant soups, further enhancing its versatility.

Additionally, the Bunn AF PR-3 incorporates advanced brewing technology, including its unique "infusion" brews system. This system allows water to saturate coffee grounds evenly, promoting even extraction. As a result, the coffee brewed with the AF PR-3 exhibits a well-balanced taste with vibrant aroma, catering to the sophisticated palate of coffee aficionados.

Durability is another characteristic of the Bunn AF PR-3. The brewer is built with high-quality stainless steel, making it resistant to wear and tear, and ensuring that it can withstand the demands of a bustling café environment. The machine's components are designed for easy maintenance, allowing operators to clean and service the brewer with minimal downtime.

Moreover, the Bunn AF PR-3 is energy efficient, designed to reduce energy consumption without compromising performance. This feature not only helps in keeping operational costs down but also makes it an environmentally friendly choice for coffee businesses.

In conclusion, the Bunn AF PR-3 is a leading coffee brewer that combines speed, quality, and user-friendly technology, making it an essential piece of equipment for any commercial coffee establishment. Its ability to brew large quantities of rich, flavorful coffee efficiently, along with its durability and ease of operation, solidifies its position as a top contender in the coffee brewing market.