Bunn AFPO-2 SL user manual

User manual for the device Bunn AFPO-2 SL

Device: Bunn AFPO-2 SL
Category: Ice Tea Maker
Manufacturer: Bunn
Size: 1.97 MB
Added : 4/22/2014
Number of pages: 25
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Abstracts of contents
Summary of the content on the page No. 1



AFPO-2
AFPO-2 SL
AFPO-3
AFPO-3 SL
SERVICE & REPAIR MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644

41093.0000B 06/12 ©2008 Bunn-O-Matic Corporation
1
REFILL
2
2 1
FLAVOR FLAVOR
OUTPUT OUTPUT
WATER MAIN
INPUT POWER
WATER WATER
OUTPUT OUTPUT
1
FLAVOR
INPUT
2
REFILL 1
3 2
3 2 1
FLAVOR FLAVOR FLAVOR
OUTPUT OUTPUT OUTPUT
WATER MAIN
INPUT POWER
WATER WATER WATER FLAVOR
OUTPUT OUTPUT OUTPUT INPUT
1
2

Summary of the content on the page No. 2

BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) Airpots, thermal carafes, decanters, GPR servers, iced tea/coffee dispensers, MCP/MCA pod brewers thermal servers and Thermofresh servers (mechanical and digital)- 1 year parts and 1 year labor. 2) All other equipment - 2 years parts and 1 year labor plus added warranties as specified below: a) Electronic circuit and/or control boards - parts and labor for 3 years. b) C

Summary of the content on the page No. 3

CONTENTS User Notices ..............................................................................................................................3 Preventive Maintenance Cleaning .....................................................................................................................................4 Adjustments ...............................................................................................................................4 Operating Controls ...................

Summary of the content on the page No. 4

CLEANING RECOMMENDED WEEKLY CLEANING: This should be done in conjunction with the recommended weekly cleaning of your machine. The Hoppers must be empty before starting. 1. Prepare a 1 gallon cleaning solution consisting of 1 gallon of hot water and a sanitizing cleaner which contains 3-5% chlorine based sanitizer. Mix per manufacturers instructions 2. Remove connectors from each concentrate container and place them directly into the cleaning solution. 3. Energize each refill station and allo

Summary of the content on the page No. 5

MIX RATIO ADJUSTMENTS(cont.) Mix ratio (water/flavor) Time for FLAVOR OUTPUT (1/2 cup) Time for WATER OUTPUT (1 cup) 1+1 assume 20 sec. or obtain time per note below 40 sec. or 2 times flavor output time 2+1 assume 20 sec. or obtain time per note below 20 sec. or equal to flavor output time 3+1 assume 20 sec. or obtain time per note below 13.3 sec. or 0.67 times flavor output time 4+1(see below) assume 20 sec. or obtain time per note below 10 sec. or 0.5 times flavor output time 5+1 a

Summary of the content on the page No. 6

OPERATING CONTROLS C B A P1949 A. MAIN POWER ON/OFF The main power ON/OFF switch is located on the right of the front panel just above the power cord. B. REFILL CIRCUIT ON/OFF The refill circuit ON/OFF switches are located on the right of the front panel just above the main power switch. These allow each circuit to operate independently. C. TEST/OPERATE The TEST/OPERATE switch is located inside the auto-fill box just below the top access cover. For setting flow rates and mix ratios for fl

Summary of the content on the page No. 7

TROUBLESHOOTING A troubleshooting guide is provided to suggest probable causes and remedies for the most likely problems encountered. If the problem remains after exhausting the troubleshooting steps, contact the Bunn-O-Matic Technical Service Department. • Inspection, testing, and repair of electrical equipment should be per formed only by qualified ser vice person- nel. • All electronic components have 120 volt ac and low voltage dc potential on their terminals

Summary of the content on the page No. 8

TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Product will not dispense (cont.) 6. Main ON/OFF switch Refer to Service - Main ON/OFF Switch for testing procedure. See page 13 7. Probe box LOW/OFF/HIGH switch- Refer to Service - Probe system. es See page 14 8. Circuit board Refer to Service - Circuit Board for testing procedures. See page 11 9. Vacuum switch Refer to Service - Vacuum switch for testing procedures. See page 22 10. Vacuum/Supply pump Refer to Service - Vacuum/Supply

Summary of the content on the page No. 9

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 sta

Summary of the content on the page No. 10

SERVICE CIRCUIT BOARD 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. Disconnec

Summary of the content on the page No. 11

SERVICE FUSE AND FUSE HOLDER Removal and Replacement: Fuse: 1. Remove the cap from the fuse holder. 2. Remove fuse from the fuse holder and inspect. If blown, discard. 3. Install new 10 amp fuse in the fuse holder. 4. Reinstall fuse holder cap. Fuse Holder: 1. Disconnect the dispenser from the power source. 2. Disconnect the wires from the rear of the fuse holder. 3. Remove the nut securing the fuse holder to the front of the main mounting panel. 4. Push the fuse holder through the hole

Summary of the content on the page No. 12

SERVICE (cont.) MAIN ON/OFF SWITCH 5. Check for continuity across the switch terminals with the switch in the “ON” position. Continuity must not be present when the switch is in the “OFF” position. If continuity is present as described, reconnect the wires to the switch terminals. If continuity is not present as described, replace the switch. Removal and Replacement: 1. Remove the wires from the switch terminals. 2. Compress the clips inside the autofill box and gently push the switch

Summary of the content on the page No. 13

Moving Parts. Risk Of Electrical Shock. Do not operate Disconnect power before un p ia t n we ilt re h th m is oved. servici ng uni t. CHARGE Type R22, Amount _ _ OZ. Design Pressures: High _ _ Low _ _ Suction Pressure _ _ SERVICE (cont.) PROBE SYSTEM Probe Boxes: 1. Disconnect the signal cable from the probe boxes. 2. Remove probe box from CDS hopper. 3. Place the switch on the probe box in the “HIGH” position. 4. Check the resistance across the box cable pins, see Fig. 10. AFPO-2 &

Summary of the content on the page No. 14

SERVICE (cont.) PUMP (FLAVOR) ON/OFF SWITCHES Removal and Replacement: 1. Disconnect the dispenser from the power source. 2. Remove the wires from the switch terminals. 3. Compress the clips inside the autofill box and gently push the switch through the opening. 4. Push the new switch into the opening and spread the clips to hold switch in the autofill box. 5. Refer to Fig. 13 when reconnecting the wires. #1 AFPO-2 & 3 P1521 FIG.12 PUMP (FLAVOR) START SWITCHES BLK from Solenoid Switch

Summary of the content on the page No. 15

SERVICE (cont.) REFILL SWITCHES If continuity is present as described, reconnect the wires to the switch terminals. If continuity is not present as described, replace the switch. Removal and Replacement: 1. Remove the wires from the switch terminals. 2. Compress the clips inside the autofill box and gently push the switch through the opening in the front of autofill box. 3. Push the new switch into the opening and spread the clips to hold switch in the autofill box. 4. Refer to Fig. 15

Summary of the content on the page No. 16

6. Check the solenoid valve for coil action. Connect the SERVICE (cont.) dispenser to the power source. Press the solenoid SOLENOIDS (water) switch and listen carefully in the vicinity of the solenoid valve for a “clicking” sound as the coil magnet attracts. 7. Disconnect the dispenser from the power source. If the sound is heard as described and water will not pass through the solenoid valve, there may be a block- age in the water inlet before the solenoid valve or, the solenoid valv

Summary of the content on the page No. 17

SERVICE (cont.) SOLENOID (WATER) ON/OFF SWITCHES Removal and Replacement: 1. Remove the wires from the switch terminals. 2. Compress the clips inside the autofill box and gently push the switch through the opening. 3. Push the new switch into the opening and spread the clips to hold switch in the autofill box. 4. Refer to Fig. 19 when reconnecting the wires. #1 AFPO-2 & 3 BLK from Pump Switch #2 P1521 BLK to Pump Switch #1 FIG.18 SOLENOID (WATER) ON/OFF SWITCHES BLU to Test/Operate Swi

Summary of the content on the page No. 18

SERVICE (cont.) 5. Disconnect the dispenser from the power source. TEST/OPERATE ON/OFF SWITCH 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

Summary of the content on the page No. 19

SERVICE (cont.) a) 120 volts ac for two wire 120 volt models. VACUUM/SUPPLY PUMP ASSEMBLY 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 dispenser from the power source. If voltage is present as described, replace the pump. If voltage is not present as described, refer to the Wiring Diagrams and check main wiring harness. Pump Motor Removal and Replacement: NOTE: Do not disconnect or damage tubing. Tubing is not r

Summary of the content on the page No. 20

SERVICE (cont.) VACUUM/SUPPLY PUMP TUBE INSTALLATION ROLLERS 2. Separate the two halves of the pump and carefully remove the tubing from within. PUMP 3. Hold the new pump head as shown in Fig. 24, with HEAD rollers in the 2, 6, and 10 o’clock positions. 4. Reinstall tubing in the new pump head by wrap- ping the tubing around the rollers as shown in Fig. 24. 5. Insert the slot of the tubing key (supplied), as TUBING KEY shown in Fig. 24, on the rotor so the bottom edge of the key is pressing


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