Bunn AFPO-3, AFPO-2 SL service manual TEST/OPERATE Switch Terminals

Page 18

SERVICE (cont.)

TEST/OPERATE ON/OFF SWITCH

 

 

 

 

 

 

 

 

 

 

1

 

 

 

REFIL

L

 

2

 

 

 

 

 

 

 

 

 

3

 

MAIENR

 

 

 

 

 

 

POW

 

 

 

 

R

 

 

 

 

 

 

ATET

 

 

 

 

 

 

WINPU

 

 

 

 

 

1

1

 

 

 

 

 

FLUATVPOURT

OR

 

 

 

 

 

FILNAPVUT

 

 

 

 

 

O

2

 

 

 

 

2

ER

 

 

 

 

 

WATPUT

3

 

 

 

 

 

OUT

 

 

 

 

R

 

 

 

 

 

 

AVOUT

 

 

 

 

 

 

OFLUTP

 

 

 

 

 

3

ER

 

 

 

 

 

WATPUT

 

 

 

 

 

 

OUT

 

 

 

 

 

OR

 

 

 

 

 

 

FLAVPUT

 

 

 

 

 

 

OUT

 

 

 

 

 

 

ER

 

 

 

 

 

 

WATPUT

 

 

 

 

 

 

OUT

 

 

 

 

 

 

FIG. 20 TEST/OPERATE SWITCH

P1521

 

Location

The test/operate switch is located inside the autofill box on the right side.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Remove the black wire from the top center switch terminal.

3.Connect the dispenser to the power source. With a voltmeter, check the voltage across the black wire removed from the test/operate switch and the white wire from one of the solenoids. The indica- tion 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.

5.Disconnect the dispenser from the power source.

If voltage is present as described, proceed to #6.

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

6.Disconnect the wires from the left and center terminals.

7.Check for continuity across the left and center terminals in rows one, two, three and four with the switch in the “operate” position. Continuity should not be present across the left and center terminals with the switch in the “center” or “Test” position.

If continuity is present as described, replace the wires. The switch is operating properly.

If continuity is not present as described, replace the switch.

Removal and Replacement:

1.Disconnect the dispenser from the power source.

2.Remove the wires from the switch terminals.

3.Compress the clips inside on the back of the switch panel and gently push the switch through the opening.

4.Push the new switch into the opening and spread the clips to hold the switch in the switch panel.

5.Refer to FIG. 21 when reconnecting the wires.

BLK to Circuit

Board J4-3

BLU from Solenoid Switch #1

VIO from Solenoid Switch #2

WHI/VIO from Solenoid Switch #3

BLK from Main

ON/OFF Switch

RED/BLK from Pump Switch #1

RED/BLK to Refill Switch #1

BRN/BLK from Pump Switch #2

BRN/BLK to Refill Switch #2

WHI/RED from Pump Switch #3

WHI/RED to Refill Switch #3

FIG. 21 TEST/OPERATE SWITCH TERMINALS

P1525

 

18

28791 040501

 

Image 18
Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217Warranty IntroductionUser Notices Plumbing Requirements Electrical RequirementsElectrical Hook-Up Initial SET-UPCleaning Recommended Weekly Cleaning MIX Ratio AdjustmentsInitial SET-UP MIX Ratio ADJUSTMENTScont Time for Flavor Output 1/2 cup Time for Water Output 1 cupTEST/OPERATE Main Power ON/OFFRefill Circuit ON/OFF Probe Control BOX LOW/OFF/HIGHTroubleshooting Problem Probable Cause RemedyTroubleshooting Component Access ContentsCircuit Board Connector Location Circuit BoardFuse and Fuse Holder LocationService Main ON/OFF SwitchProbe System Moving#2 AFPO-2 Pump Flavor ON/OFF Switches#1 AFPO-2 #3 AFPO-3 onlyRefill Switches Refill Switches#2 AFPO-2 #3 AFPO-3 OnlySolenoid Water ON/OFF Switches Solenoid Water ON/OFF SwitchesTEST/OPERATE Switch Terminals VACUUM/SUPPLY Pump Assembly Pump Motor Removal and ReplacementVACUUM/SUPPLY Pump Tube Installation Tubing Start PositionVacuum Switches Vacuum SwitchesPiping Diagram AFPO-2 Schematic Wiring Diagram AFPO-2 Schematic Wiring Diagram AFPO-3 Schematic Wiring Diagram AFPOA-2
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AFPO-2, 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.