Bunn AFPO-2 SL, AFPO-3 SL manual Circuit Board

Page 10

SERVICE

CIRCUIT BOARD

O

 

O

 

O

 

O

 

FIG. 2 CIRCUIT BOARD

P1520

 

Location:

The circuit board is located inside the autofill box, mounted on the right side of the solenoid mounting bracket under the switch panel.

Test Procedure:

1.Disconnect the dispenser from the power source.

2.Disconnect the ten pin plug on the main wiring harness from the connector on the circuit board.

3.Connect the dispenser to the power source. With a voltmeter, check the voltage across the black wire(#3) and the white wire (#6). The indication must be:

a)120 volts ac for two wire 120 volt models.

b)200 to 240 volts ac for two wire 200 or 240 volt models.

c) 230 volts ac for two wire 230 volt models.

4.Disconnect the dispenser from the power source.

If voltage is present as described, replace the circuit board.

If voltage is not present as described, refer to the Wiring Diagrams and check main wiring harness.

Removal and Replacement:

1.Remove the four #8-32 keps nuts securing the switch mounting bracket. Set aside with the wires attached.

2.Remove the circuit board shield and set aside for reassembly.

3.Disconnect the ten pin plug from the main wiring harness to the circuit board.

4.Remove the six #4-40 screws and spacers securing the circuit board to the solenoid mounting bracket. Remove circuit board and discard.

5.Install new circuit board using #4-40 screws and spacers to secure the circuit board to the solenoid mounting bracket. The spacers must be between the solenoid mounting bracket and the circuit board.

6.Place circuit board shield over the circuit board.

7.Install switch panel assembly and secure with four #8-32 keps nuts.

8.Refer to Fig. 3 for circuit board ten pin connector.

 

J4

 

J1

 

J2

 

J3

 

P1528

 

FIG. 3 CIRCUIT BOARD CONNECTOR LOCATION

10

41093 040408

 

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Contents AFPO-3 SL BUNN-O-MATIC Commercial Product Warranty User Notices Cleaning Recommended Weekly Cleaning MIX Ratio AdjustmentsMIX Ratio ADJUSTMENTScont TEST/OPERATE Main Power ON/OFFRefill Circuit ON/OFF Probe Control BOX LOW/OFF/HIGHTroubleshooting Problem Probable Cause RemedyTroubleshooting Service Component AccessCircuit Board Circuit BoardFuse and Fuse Holder LocationService Main ON/OFF SwitchProbe Switches Probe SystemPump Flavor ON/OFF Switches #3 AFPO-3 onlyRefill Switches Refill SwitchesWhite wire from the solenoid OnlySolenoid Water ON/OFF Switches Solenoid Water ON/OFF SwitchesTEST/OPERATE Switch VACUUM/SUPPLY Pump Assembly VACUUM/SUPPLY Pump AssemblyVACUUM/SUPPLY Pump Tube Installation Tubing Start PositionVacuum Switches Vacuum SwitchesPiping Diagram AFPO-2 Schematic Wiring Diagram AFPO-2 41093 Schematic Wiring Diagram AFPOA-2
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AFPO-3 SL, AFPO-2 SL, AFPO-3 specifications

The Bunn AFPO-2 SL, AFPO-3 SL, and AFPO-3 are advanced coffee brewing systems that cater to the needs of commercial establishments seeking efficiency and high-quality coffee production. These machines are designed for ease of use, high throughput, and flexibility, making them ideal for coffee shops, restaurants, and workplaces.

The Bunn AFPO-2 SL is known for its dual-brew capabilities, allowing users to brew coffee and tea simultaneously. This model features a sleek, stainless-steel design that fits well in various settings. It comes equipped with an electronic controls interface that ensures precise brewing temperatures and times, enabling baristas to consistently produce flavorful coffee. The AFPO-2 SL has a brewing capacity of up to 3.8 gallons per hour, making it suitable for high-demand environments.

Another standout model is the Bunn AFPO-3 SL, which builds upon the features of the AFPO-2 SL with an increased brewing capacity of up to 4.5 gallons per hour. This model includes a programmable digital control module, which allows users to customize brew cycles for different coffee blends, enhancing versatility. The AFPO-3 SL is designed with stainless-steel construction, ensuring durability and longevity while maintaining easy cleaning and maintenance routines.

The hallmark of the Bunn AFPO-3 is its single-serve capability, which provides a fresh-brewed experience for every cup. With advanced technology that ensures optimal water temperature and flow rate, the AFPO-3 guarantees rich and robust flavors in every pour. This model is ideal for establishments that want to offer their customers a variety of coffee options without sacrificing quality or speed. It also features an intuitive user interface, allowing staff to operate the machine with minimal training.

All three models are equipped with a built-in hot water tap, providing instant access to hot water for tea or other beverages, further increasing their utility in busy environments. The Bunn AFPO series is known for its reliability, with heavy-duty components that withstand the rigors of daily use.

In summary, the Bunn AFPO-2 SL, AFPO-3 SL, and AFPO-3 represent the pinnacle of brewing technology in the commercial coffee market. With their advanced brewing capabilities, user-friendly designs, and robust construction, these machines are perfectly suited for any establishment that values quality coffee and operational efficiency.
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