Bunn AF PR-3 service manual VACUUM/SUPPLY Pump Tube Installation, Head cavity

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SERVICE (cont.)

VACUUM/SUPPLY PUMP TUBE INSTALLATION

ROLLERS

PUMP

HEAD

TUBING

KEY

EXIT

ENTRY

PORT

PORT

1.

Separate the pump head from the pump body.

 

Hold pump head as shown in Fig. 18, with roller

 

in the 2, 6 10 o’clock positions.

2.

Wrap tubing around rollers and hold as shown in

 

Fig. 18.

3.

Insert the slot of the tubing key (supplied), as

 

shown in Fig. 18 on the rotor so the bottom edge

 

of the key is pressing the tubing into the pump

 

head cavity.

4.

Push down and turn the key counterclockwise to

 

guide the tubing deep into the pump head cavity

 

as shown in Fig. 19.

5.

Hold the tubing and rotor in the pump head and

 

remove key carefully.

6.

Place pump body on the rotor shaft.

7.

Squeeze the pump body and pump head together

 

simultaneously until pump body and pump head

 

are touching on all sides. Be careful not to pinch

 

the tubing between the pump body and the pump

FIG. 18 TUBING START POSITION

ROTOR

ROTOR

SHAFT

P1542

head.

FIG. 19 TUBING LOADED

P1541

 

14

28791.1 011500

 

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Contents Bunn AF PR-2 AF PR-3 User Notices WarrantyIntroduction Electrical Hook-Up Initial SET-UPElectrical Requirements Recommended Weekly Cleaning CleaningTroubleshooting Probe Control BOX LOW/OFF/HIGH Main Power ON/OFFRefill Circuit ON/OFF Troubleshooting Problem Probable Cause RemedyService Component AccessCircuit Board Circuit BoardFuse and Fuse Holder Fuse HolderService Main ON/OFF SwitchRefer to when reconnecting the wires Probe SystemRefill Switches #3 AFPR-3 onlyVACUUM/SUPPLY Pump Assembly VACUUM/SUPPLY Pump AssemblyVACUUM/SUPPLY Pump Tube Installation Head cavityVacuum Switches #3#128791.1 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.