BUNN ® AF PR-2 AF PR-3 1 2 FILL RE IN MA ER W PO R TE WA U T P IN 1 1 R O AV FL UT P IN 2 M IX ED PR OD UC T OU TP 2 UT 1 2 FILL RE 3 IN MA ER W PO R TE WA U T P IN 1 1 R O A AV FL UT P IN 2 2 3 M IX ED PR OD UC 3 T OU TP UT OPERATING & SERVICE MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 28791.
INTRODUCTION This equipment supplies a premixed liquid product to the hoppers on the CDS-2 or 3 dispensers. It is for indoor use only on a sturdy counter or shelf. WARRANTY Bunn-O-Matic Corp. (“Bunn”) warrants the equipment manufactured by it to be commercially free from defects in material and workmanship existing at the time of manufacture and appearing within one year from the date of installation. In addition: 1.
INITIAL SET-UP NOTE: This refill unit should not be used to initially fill the hopper. Running the motor for extended periods will trip the thermal switch. The thermal switch will reset, but requires up to 30 minutes of cooling time. NOTE: Hoses, clamps and product container connectors are not supplied. Fittings and labels are supplied. Make hose assemblies as required. 1. Assemble hoppers with probe housing assemblies to CDS-2, CDS-3 or modify existing hoppers using template provided. 2.
CLEANING RECOMMENDED WEEKLY CLEANING: This should be done in conjunction with the recommended weekly cleaning of your CDS-2 or CDS-3 machine. The CDS 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.
OPERATING CONTROLS 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 of the other.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Product will not dispense 1. Empty product container Replace or refill 2. No power or incorrect voltage to the dispenser (A1) Check the outlet for 120 volts on two wire 120 volt dispenser. (A2) Check the outlet for 200 volts or 240 volts ac for two wire 200 volt or 240 volt dispensers. (B) Check circuit breakers or fuses. 3. Signal cable unplugged Signal cable must be plugged in. 4. Hopper is full Product must not be touching probes to fill.
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. 1 2 L LL FI FIL RE 3 N M AIER W PO R ER TE WAT T PU IN WARNING - Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel.
CIRCUIT BOARD FFO Removal and Replacement: 1. Disconnect the ten pin plug from the main wiring harness to the circuit board. 2. Remove the six #4-40 screws and spacers securing the circuit board to the solenoid mounting bracket. Remove circuit board and discard. 3. Install new circuit board using #4-40 screws and spacers to secure the circuit board to the vacuum switch mounting bracket. The spacers must be between the solenoid mounting bracket and the circuit board. 4. Refer to Fig.
SERVICE FUSE AND FUSE HOLDER Removal and Replacement: Fuse: 1. Remove the cap from the fuse holder. 2. Remove fuse from the fuse holder, inspect, if blown discard. 3. Install new 10 amp fuse in the fuse holder. 4. Reinstall fuse holder cap. 1 2 FILL LL RE FI RE 3 N N M AI AIER MW ER PO W PO R TEER T WAT PU T IN PU IN 1 11 OR A R T FL AVO FL PU T IN PU IN 2 22 3 UT TP UT TP 3 ED ED M IX M IX Fuse Holder: 1. Disconnect the wires from the rear of the fuse holder. 2.
SERVICE (cont.) MAIN ON/OFF SWITCH If voltage is present as described, proceed to #5. If voltage is not present as described, refer to the wiring diagrams and check the dispenser wiring harness. 1 2 L FILL FIL RE 3 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.
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. 8B. FIG.
1 2 L LL FI FIL RE 3 N M AIER W PO R ER TE WAT T PU IN 1 1 OR AV A FL T INPU 2 2 PR 3 M IX OD UC 3 T OU TP UT ED 12
SERVICE (cont.) a) 120 volts ac for two wire 120 volt models. b) 200 to 240 volts ac for two wire 200 or 240 volt models. If voltage is present as described, replace the pump. If voltage is not present as described, refer to the wiring diagrams and check the main wiring harness.
SERVICE (cont.) VACUUM/SUPPLY PUMP TUBE INSTALLATION 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.
L1 SCH EMA TIC BLK WIR AF ING PR- DIA 3 GRA M MAIN BLK ON/OFF SWITCH BLK 10 AMP GRN RED RED N REFILL SWITCH ON/OFF PUMP #3 #3 WHI ORN ORN WHI/RED REFILL SWITCH ON/OFF PUMP #2 #2 WHI YEL YEL BRN/BLK W H I REFILL BLK SWITCH ON/OFF #1 PUMP #1 RED/BLK C I R C U I T 2 3 4 5 6 B 7 O 8 A J4-10 9 R D VACUUM SW ITCH #3 J4-1 WHI/RED BLK BRN/BLK RED/BLK WHI ORN GRY VIO YEL WHI VACUUM SWITCH #2 VACUUM SWITCH #1 120 VOLT SING AC LE 28814.
SCHEMATIC WIRING DIAGRAM AFPR-2 L1 N GRN BLK MAIN ON/OFF SWITCH BLK BLK REFILL ON/OFF SWITCH #2 10 AMP ORN BRN/BLK REFILL ON/OFF SWITCH #1 ORN PUMP #2 YEL WHI RED/BLK YEL WHI PUMP #1 BLK VACUUM SWITCH #2 VACUUM SWITCH #1 C I R C U I T B O A R D J4-1 2 3 4 5 6 7 8 9 J4-10 BLK BRN/BLK RED/BLK WHI ORN WHI VIO YEL 1 2 4 3 GRN RED 1 2 BLK 4 3 1 BLK 2 GRN 1 120 VOLT AC 2 WIRE SINGLE PHASE 1 2 GRN 1 BLK BLK 2 2 28814.
SCHEMATIC WIRING DIAGRAM AFPR-3 N GRN L1 BLK MAIN ON/OFF SWITCH BLK BLK REFILL ON/OFF SWITCH #3 10 AMP RED WHI/RED RED REFILL ON/OFF SWITCH #2 PUMP #3 WHI ORN BRN/BLK REFILL ON/OFF SWITCH #1 ORN PUMP #2 YEL WHI RED/BLK W H I VACUUM SW ITCH #3 YEL WHI PUMP #1 BLK VACUUM SWITCH #2 VACUUM SWITCH #1 C I R C U I T B O A R D J4-1 2 3 4 5 6 7 8 9 J4-10 WHI/RED BLK BRN/BLK RED/BLK WHI ORN GRY VIO YEL WHI 1 2 2 4 3 3 GRN RED 1 BLK 4 1 1 1 BLK 2 BLK 2 2 WHI 1 GRN GRN 1 120