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Bunn ES.2C manual

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Table of contents for the manual

  • Page 1

    OPERA TING & SER VICE MANU AL BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 10837.0000C 6/96 ©1994 Bunn-O-Matic Corporation B UNN E spr ess ® ES•2C ES•2C ™ Espresso Brewer O F F O N 0 0 , 5 0,5 1 1 , 5 1,5 2 2 , 5 2,5 0 4 8 1 2 12 1 6 16 C L 2 CL 2 b a r bar C[...]

  • Page 2

    BUNN E spress ® ES•2C ™ 2 User notices ......................................................................................................................... 3 Site Requirements .............................................................................................................. .4 Installation .....................................[...]

  • Page 3

    B UNN Espr ess ® ES•2C ™ 3 The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels. 00656.0000 00831.0000 24246.0000 24247.0000 USER NOTICES CAUTION HOT Liquid-Steam-Surfaces[...]

  • Page 4

    BUNN E spress ® ES•2C ™ 4 SITE REQUIREMENTS PHYSICAL The brewer is for indoor use only on a sturdy counter. It is 26 1 ⁄ 2 ” (67 cm) wide,16” (40.5 cm) tall, and 19 1 ⁄ 2 ” (49 cm) deep. The brewer weighs approximately 142 pounds (64.5 kg) when the water tank is filled. PLUMBING The brewer must be connected to a cold water source wit[...]

  • Page 5

    B UNN Espr ess ® ES•2C ™ 5 PLUMBING Install the brewer as indicated below INST ALLA TION WATER STRAINER ASSY. INLET HOSE BUNN 9 0 p s ig m a x o p e r a tin g p r e s s u r e B O M S t r a in e r F L O W From Water T reatment 24682.0000 Adaptor 24684.0000 Sealing Washer 23820.0000 Strainer Assy . 24684.0000 Sealing Washer 24683.0000 Adapter T [...]

  • Page 6

    BUNN E spress ® ES•2C ™ 6 OPERA TING CONTROLS 1 .............. Tank/Boiler Manual Fill Button 2 .............. Pressure Gage 3 .............. Hot Water Wand 4 .............. Tank Water Level Gage 5 .............. Hot Water Wand Control Knob 6 .............. Espresso Group Head 7 .............. Cup Warmer Tray 8 .............. Steam Wand Contro[...]

  • Page 7

    B UNN Espr ess ® ES•2C ™ 7 ADJUSTMENTS INFUSION The brewer leaves the factory set to yield these approximate amounts of water: One Half-Cup ................... 50 cc. Two Half-Cups ................. 100 cc. One Full-Cup .................... 100 cc. Two Full-Cups .................. 200 cc. To change the factory set amounts: 1. Place the program[...]

  • Page 8

    BUNN E spress ® ES•2C ™ 8 OPERA TION ESPRESSO BREWING 1. Determine the batch size to be made. 2. Place the desired amount of espresso grind coffee in the appropriate filter holder (1 or 2 cups), shake it gently to level the bed, and using a tamper, compress the coffee. 3. Clean all coffee particles from the edge of the filter holder. 3. Raise [...]

  • Page 9

    B UNN Espr ess ® ES•2C ™ 9 BREWING TIPS GENERAL Good espresso is identified by its taste, aroma, and the manner in which it is served. All of these elements can be improved-upon to serve your customers a better product. BEAN SELECTION The selection of a blend of coffee is a matter of personal choice. A blend with a high proportion of Central a[...]

  • Page 10

    BUNN E spress ® ES•2C ™ 10 CLEANING FIL TER HOLDER CLEANING Bunn-O-Matic recommends daily cleaning for your espresso brewer using the following steps: 1. Place the one-cup basket into the filter holder. 2. Put a teaspoon of any granular espresso cleaner or automatic dish washing detergent (such as Cascade ® ) into the basket. 3. Lock the filt[...]

  • Page 11

    B UNN Espr ess ® ES•2C ™ 11 ALARMS ONE BREW INDICA TOR FLASHING (EITHER SIDE) This alarm flashes when either flow meter has not sent impulses to the electronic control unit for more than five seconds. All functions will stop and the lamp will begin to flash if brewing a programmed amount. Check the following: A. Coffee ground too fine. B. Obst[...]

  • Page 12

    BUNN E spress ® ES•2C ™ 12 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 at (800) 637-8606. • Inspection, testing, and repair of elect[...]

  • Page 13

    B UNN Espr ess ® ES•2C ™ 13 TROUBLESHOOTING PROBLEM PROBABLE CAUSE REMEDY Will not brew when any of the batch buttons is pressed. (Continuous brew works as well as automatic refill.) Water is not hot or long re- covery time. Flowmeter Solenoid valve Pump Solenoid valve Limit thermostat(s) Tank heater Check connections between the flowmeter and[...]

  • Page 14

    BUNN E spress ® ES•2C ™ 14 TROUBLESHOOTING PROBLEM PROBABLE CAUSE REMEDY Short brew time(less than approximately 20 seconds per half-cup). Weak coffee. No crema. Brewer does not reach oper- ating pressure or does so very slowly. Coffee ground too coarse Coffee not fresh Too little coffee used Coffee not tamped into filter basket Check coffee g[...]

  • Page 15

    B UNN Espr ess ® ES•2C ™ 15 TROUBLESHOOTING PROBLEM PROBABLE CAUSE REMEDY problem problem problem[...]

  • Page 16

    BUNN E spress ® ES•2C ™ 16 PLUMBING DIAGRAM TO STEAM WAND TO HEATER CONTROL Hot Water (surrounding tank heater) PRESSURE SWITCH TANK HEATER LEGEND Cold Water Brew Water Steam Components and Item Numbers FILTER HOLDER COLD WATER FILL LINE FLOWMETER FROM WATER SUPPLY VALVE COLD WATER PUMP W/ADJUSTABLE PRESSURE RELIEF VALVE SET TO ~150 PSI HEAT E[...]

  • Page 17

    B UNN Espr ess ® ES•2C ™ 17 WIRING DIAGRAM J6-1 ES•2C 10839.0000A 10/94 © 1994 BUNN-O-MATIC CORPORATION GREEN 220 VOLTS AC 2 WIRE SINGLE PHASE 60 HZ L1 L2 ELECTRONIC CONTROLLER SOL GROUP SOL REFILL J8-1 PROGRAM SWITCH J9-1 J2-1 LIMIT THERMOSTAT TANK HEATER (RIBBON CABLE) J1 J3-1 J4-1 J5-1 J7-1 FLOW METER SOL GROUP FLOW METER CONTROL & I[...]