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POWDER
™
AUTO FILL
For CDS-2 & 3
DISCONTINUED VERSION
The information in this manual
is no longer current.
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
To obtain the Illustrated Parts Catalog, visit the Bunn-O-Matic website, at www.bunn.com. This is absolutely FREE,
and the quickest way to obtain the catalog. Contact Bunn-O-Matic Corporation at 1-800-286-6070 to obtain a paper
copy of th
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INTRODUCTION This equipment supplies a liquid mix to the hoppers on the CDS-2 or 3 dispensers. It is for indoor use only on a sturdy counter or shelf. BUNN-O-MATIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor. 2) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 years parts and 1 year labor
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10. Slowly feed the door support arms through the slots located on the front of the Powder Auto-Fill. 11. Continue to slowly feed the door support arms through the slots until the magnet strikes on the back of the door engage the magnets on the Powder Auto-Fill. 12. Locate the #8-32 x .375” truss head screws and brass spacers set aside earlier. 13. Place one brass spacer on each screw. 14. Insert one screw/spacer assembly through the door hinge, locating the spacer inside the hinge bushing and
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OPERATING INSTRUCTIONS 1. On the CDS control panel, make the following switch 9. After checking the CDS and Powder Auto-Fill set-up, settings: the 5 minute refill fault may be cleared by simply a) POWER- “ON” opening and closing the Powder Auto-Fill door. b) DAY/NIGHT- “DAY” 10. Once the product level in the CDS covers the au- 2. Pull the Powder Auto-Fill fully forward on its sup- ger, make the following switch settings at the CDS port rails and open the door. control panel: 3. Fill the P
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ADJUSTMENTS When using the Powder Auto-Fill with a new powdered granita mix, follow the procedure outlined below to adjust the Powder Auto-Fill to produce the correct recipe. 1. Determine the mix ratio of powdered granita mix. i) Remove the hole plug on the whipper panel. Using Convert the recipe so that it is expressed in terms of a screwdriver, set potentiometer to approximately weight units [grams (g), dry ounces (oz), or pounds mid range. (lbs)] of powdered granita mix to fluid ounces (
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CLEANING RECOMMENDED DAILY CLEANING AND MAINTENANCE TIPS This should be done in conjunction with the recommended weekly cleaning of your CDS-2 or CDS-3 machine. Removing and cleaning the whipper chamber (once a day): 1. Open the cabinet door. 2. Pull the mixing chamber out of the whipper cham- ber. 3. Twist the whipper chamber clockwise and pull it off the whipper chamber receptacle. Mixing Chamber 4. Pull the frother off the motor shaft. Notice the flat keyway on the shaft and the matching k
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FAULT LIST Door Lamp Fault ON Normal operation - Powder Auto-Fill ready to dispense Flashes ON/OFF at 50% duty cycle Low product level in Powder Auto-Fill hopper Two flashes about every 2 seconds CDS/Powder Auto-Fill probe circuit open Three flashes about every 2 seconds Powder Auto-Fill hopper not in place Four flashes about every 2 seconds CDS refill exceeded 5 minutes OFF Door not closed 29793 061599 7
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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
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Product level in CDS is lower than 1. Powder Auto-Fill not pulled com- 1. Check that the Powder Auto-Fill level Probe - CDS running; Powder pletely forward. is pulled completely forward until Auto-Fill door lamp flashes two the guide rails roll into the indented times position. 2. CDS level probe misaligned. 2. Position the CDS level probe so that it is located in the notch of the CDS hopper and touching the contact protruding from the
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Powder Auto-Fill will not dispense 1. No water Water lines and valves to the dis- product penser must be open and free of obstructions. 2. No power or incorrect voltage to Check that the power cord is con- the dispenser. nected to the CDS dispenser and for voltage from the CDS dispenser. 3. Dispense Solenoid Valve Refer to Service- Dispense Solenoid Valve for testing procedures. See page 32 4. Control Board and Probe Refer to Service- Con
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Product overflows CDS hopper 1. Control Board and Probe Refer to Service- Control Board and Probe for testing procedures. See page 18 2. Dispense Solenoid Valve Refer to Service- Dispense Solenoid Valve for testing procedures. See page 32 Weak product 1. Whipper Motor Refer to Service- Whipper Motor for testing procedures. See page 16 2. Frother Refer to Service- Frother for testing procedures. See page 15 3. Dispense Solenoid Valve Ref
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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 electrical equipment should be performed only by qualified service personnel. The dispenser should be unplugged when servicing, except when electrical tests are required and the test procedure specifically states to
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SERVICE (cont.) AUGER DRIVE COMPONENTS 12. Rinse and dry each item thoroughly. 13. Check for damaged or broken components, replace any if necessary and reassemble hopper assem- bly. 14. Install hopper assembly in the dispenser by slid- ing hopper assy on the hopper support plate (12) until the hopper base (9) seats firmly behind the retainer plates (16) on the hopper support plate (12). 1 2 3 4 5 6 13 7 P1922 FIG. 2 AUGER DRIVE COMPONENTS 14 8 9 Location 20 10 The auger drive components ar
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SERVICE (cont.) AUGER DRIVE MOTOR Removal and Replacement: 1. Remove hopper assembly and set aside for reas- sembly. 2. Remove six #8-32 screws securing the rear cover and remove the rear cover. 3. Remove the four #8-32 screws located inside the dispenser housing on the lower right front of the auger motor mounting panel, securing the auger motor mounting bracket and auger motor to the rear of the auger motor mounting panel. 4 Disconnect the wires from the auger drive motor. 5. Remove the a
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SERVICE (cont.) FROTHER AND MIXING/WHIPPER CHAMBER 10. Slide whipper chamber receptacle with seal (6) and O-ring (4) on to the motor shaft. 11. Rotate the receptacle with seal (6) counterclockwise until it snaps into place on the motor mounting nuts (7). 12. Push frother (5) onto the motor shaft, making sure the flat in the frother (5) lines up with the flat on the motor shaft. 13. Install whipper chamber (3) on the whipper chamber receptacle (6) by twisting counterclockwise until tabs on
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SERVICE (cont.) WHIPPER MOTOR Removal and Replacement: 1. Disconnect the dispenser from the power source. 2. Open the dispenser door and remove the hopper assembly out the front of the dispenser. 3. Remove the four #8-32 screws securing the hopper support panel to the auger motor mounting panel and the whipper motor mounting panel. 4. Slowly lift the hopper support panel up and discon- nect the red/black and green wires from the hopper switch. 5. Pull the mixing chamber out of the whipper ch
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SERVICE (cont.) WHIPPER MOTOR (cont.) 21. Install dispense tip into the bottom of the whipper chamber. when reconnecting wires. 22. Slip the mixing chamber onto the mixing chamber 13. Slide the slinger onto the motor shaft flush against water inlet tube far enough so the mixing chamber the front panel. will seat inside the whipper chamber. 14. Wash whipper chamber components in a mild 23. Install hopper assembly in the dispenser by slid- solution of dish detergent using a bristle brush. ing
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8. Select the “OFF” position of the main power switch and SERVICE (cont.) disconnect the dispenser from the power source. CONTROL BOARD and LEVEL PROBE If voltage is present as described, proceed to #9. If voltage is not present as described refer to the wiring diagram and check the dispenser wiring harness. 9. Reconnect the four pin connector to the control board (J7). 10. Disconnect the twelve pin connector (J1) from the control board. 11. Measure the resistance between pins 8 & 12 of the
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If voltage is present as described, proceed to #12. SERVICE (cont.) If voltage is not present as described, replace the photo CONTROL BOARD and LEVEL PROBE (cont.) transistor. Test Procedure: Low Product Detect 12. Check the voltage across pins 1 (positive) & 3 1. Disconnect the dispenser from the power source. (negative) of the four pin connector on the control 2. Disconnect the twelve pin connector (J1) from the board with a voltmeter. Remove the hopper from control board. the dispenser,
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SERVICE (cont.) CONTROL BOARD and LEVEL PROBE (cont.) Removal and Replacement: 1. Disconnect the dispenser from the power source. 2. Remove the two plugs (J1 and J7) from the main wiring harness, the potentiometer plug (J3), the J7 photo transistor plug (J6), and the photo LED plug J1 (J2) from the control board. J3 3. Remove the four #6-32 keps nuts securing the con- trol board to the hopper motor mounting panel. 4. Remove the control board. 5. Remove the four spacers from the old control bo
