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INTRODUCTION This equipment dispenses hot beverages or soup on demand from powdered product. It has three hoppers. This equipment may also dispense cold beverages from powdered product from the left dispense station. 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 o
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USER NOTICES Carefully read and follow all notices on the equipment and in this manual. They were written for your protection. All notices are to be kept in good condition. Replace any unreadable or damaged labels. 28301.0003 28328.0000 This equipment must be installed to comply with the Basic Plumbing Code of the Building Officials and Code Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). For models installed outs
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INITIAL SET-UP 1. Locate the drip tray assembly above the dispenser nested in the packing material. 2. Remove the drip tray and the drip tray cover and set them aside. 3. Remove the water strainer assembly from the drip tray and set it aside. 4. Remove the four legs from the packaging material, apply non-skid pads to the bottom of the legs and securely install the legs in the dispenser base. ELECTRICAL REQUIREMENTS CAUTION - The dispenser must be disconnected from the power source until specif
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INITIAL FILL & HEAT CAUTION - The dispenser must be disconnected from the power source throughout the initial fill & heat, except when specified in the instructions. 1. Turn on the water supply and connect the dispenser to the power source. 2. Water will automatically flow into the tank to the proper level and then shut off. This will take less than five minutes. 3. When the tank is full of water, open the front door and place the heater switch in the “ON” (lower) position. A tank full of col
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COLD BEVERAGE SET-UP (OPTIONAL) Cold beverages may be dispensed from the left dispense position. Simply place the HOT/COLD switch near the left whipper chamber in the “COLD” (upper) position. CLEANING Refer to the decal inside the hopper access door for cleaning recommendations and procedures. The use of a damp cloth rinsed in any mild, non-abrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. ADJUSTMENTS 9 The hot or cold beverage solenoids are preset
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HOPPER THROW TEST(cont.) 4. Press and hold the dispense switch of the appropriate chamber for 5 seconds. The hopper motor will run for 10 seconds at the programmed speed. 5. Remove the cup and weigh the dispensed product. To calculate the throw rate (g/s or oz./s), divide the total weight of the dispensed product by 10. 6. Replace the mixing chamber and steam collector, and return the rinse/run switch to the run position. DRAINING THE HOT WATER TANK CAUTION - The dispenser must be disconnected
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TROUBLESHOOTING (cont.) REMEDY PROBLEM PROBABLE CAUSE Water lines and valves to the dis- Product will not dispense 1. No water penser must be open. (A1) Check for 120 volts across 2. No power or incorrect voltage to the black and white wires on two the dispenser wire 120 volt dispenser. (A2) Check for 120 volts across the red and white wires and the black and white wires and 240 volts across the red and black wires on three wire 120/240 volt dis- penser. (A3) Check for 240 volts across the wh
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Product will not dispense (cont.) 9. Water Strainer (A) Direction of flow arrow must be pointing towards dispenser. (B) Remove the strainer and check for obstructions. Clear or replace. 10. Lime build-up Inspect the tank assembly for exces- CAUTION - Tank and tank compo- sive lime deposits. Delime as re- nents should be delimed regularly quired. depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can
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TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dripping from dispense tip 1. Lime build-up Inspect the tank assembly for exces- CAUTION - Tank and tank compo- sive lime deposits. Delime as re- nents should be delimed regularly quired. depending on local water conditions. Excessive mineral build-up on stain- less steel surfaces can initiate corro- sive reactions resulting in serious leaks. 2. Dispense Solenoid Valve Remove the dispense solenoid valve (Hot or Cold) and clear any obstruction
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TROUBLESHOOTING (cont.) PROBLEM REMEDY PROBABLE CAUSE Weak product 1. Water temperature Place an empty container beneath the dispense tip. Initiate a dispense cycle and check the water tempera- ture immediately below the dispense tip with a thermometer. (A) Reading for mechanical thermo- stat models should be 180°F(82°C) to 200°F (93°C) (see thermostat tem- perature settings decal in USER NO- TICES on page 3. (B) Reading for electronic thermo- stat should be185°F(85°C) to190°F (88°C). Adjust t
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TROUBLESHOOTING (CONT.) PROBABLE CAUSE PROBLEM REMEDY Dispenser is making unusual 1. Plumbing Lines Plumbing lines should not be rest- noises ing on the counter top. 2. Water Supply (A) The dispenser must be connected to a cold water line (B) Water pressure to the dispenser must not exceed 90 psi (620 kPa) Install a regulator if necessary to lower the working pressure to ap- proximately 50 psi (345 kPa). 3. Tank Heater Remove and clean lime off the tank heater. See page 36 Excess dust 1. Fan Ref
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SERVICE AUGER DRIVE COMPONENTS (CONT.) 1 2 14. Install hopper assy (20) in the dispenser by sliding 4 hopper assy in the guides on the hopper support plate (19) until the slot in the bottom rear the 3 hopper seats against the shoulder screw (18) in 5 the hopper support plate. Removal, Cleaning and Replacement: 6 Hopper & Auger (Late Models): 9 10 1. Open the dispenser door and raise the top front 7 cover. 8 2. Lift the front edge of hopper assy (17) over the tab on hopper support plate (16
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SERVICE (cont.) AUGER DRIVE COMPONENTS (cont.) Auger Drive Motor (Refer to Fig. 2 & 3): 6. Remove dust seal (17,14) from auger motor (16,13). 1. Remove all hopper assemblies (20,17) and set 7. Remove the four #8-32 screws securing the auger aside for reassembly. motor to the auger motor mounting bracket. 2. Remove the four #8-32 screws securing the hop- 8. Remove auger motor and discard. per support plate (19,16), remove plate and set 9. Using four #8-32 screw install new auger motor aside for
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6. Disconnect the four pin connector from J4 of the SERVICE (cont.) control board. CONTROL BOARD 7. With a voltmeter, check the voltage across pins 1 & 4 of the four pin connector on the wiring harness. Connect the dispenser to the power source. The indication must be: a) 120 volts ac for two wire 120 volt models, three wire 120/208 volt and 120/240 volt models. b) 240 volts ac for two wire 240 volt models. 8. Disconnect the dispenser from the power source. If voltage is present as described, p
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SERVICE (cont.) CONTROL BOARD (cont.) 5. Reconnect the six pin connector of the wiring harness to J3 of the control board. 17. Gently pull the liquid level probe out of the tank lid 6. Check that the rinse/run switch is in the run and inspect for corrosion. Replace it if necessary. position. 18. Place the probe so that neither end is in contact 7. With a voltmeter, check the voltage across the red with any metal surface of the dispenser. (+) terminal and the black (-) terminal of the auger 19.
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