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Bunn ES2SA manual

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Table of contents for the manual

  • Page 1

    B UNN E spr ess TM OPERA TING & SER VICE MANU AL B UNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 22700.0000A 11/93 ©1993 Bunn-O-Matic Corporation ES•2A ES•2A TM / ES•2SA / ES•2SA TM ESPRESSO/CAPPUCCINO COFFEE BREWERS P-244/P-245[...]

  • Page 2

    [...]

  • Page 3

    1 BUNN E spr ess™ ES•2A™/ES•2SA™ INDEX W arranty .............................................................. 2 User Notices ........................................................ 3 F eatures .......................................................... 4-5 Installation Plumbing ............................................... 6 Electrica[...]

  • Page 4

    BUNN E spr ess™ ES•2A™/ES•2SA™ 2 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. This warranty does not apply to any equipment, component or part that w[...]

  • Page 5

    3 BUNN E spr ess™ ES•2A™/ES•2SA™ USER NO TICES The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels. 00831.0000 NOTICE This “ Manual Fill Valve” is to be used during installation ONLY! Watch the sight gage during use and do not fill past normal line! 24245.0000 24246.0000 24247.0000 00656.0[...]

  • Page 6

    BUNN E spr ess™ ES•2A™/ES•2SA™ 4 HOT WATER RINSE DISPENSING TUBE AND STEAM DISPENSING TUBE The ES•2A™ ES•2SA™are equipped with a hot water rinse dispensing tube and two steam dispensing tubes. The Hot Water rinse dispensing tube is controlled by a knob centrally located on the front of the brewer. The Steam dispensing tubes are co[...]

  • Page 7

    5 BUNN E spr ess™ ES•2A™/ES•2SA™ FEA TURES IMPORTANT : None of the high pressure pumps found on the market can operate without water for a period of more than approximately ONE MINUTE, After one minute of dry operation the pump will seize and become unserviceable. Should water be shut off disconnect pump from power supply immediately. 7 1[...]

  • Page 8

    BUNN E spr ess™ ES•2A™/ES•2SA™ 6 PLUMBING PLUMBING REQUIREMENTS This brewer must be connected to a cold water system with an operating pressure between 20 and 90 psi. A shut-off valve should be installed before the pump. Install a pressure regulator in the line when the pressure is greater than 90 psi. to reduce the pressure to 50 psi. Th[...]

  • Page 9

    7 BUNN E spr ess™ ES•2A™/ES•2SA™ ELECTRICAL SPECIFICATIONS This brewer requires a 2-wire grounded service rated 208 to 240 volts ac, 20 amp, single phase, 60 Hz. ELECTRICAL HOOKUP CAUTION: Improper installation will damage electronic components. 1. An electrician must provide electrical service as specified. 2. Using a voltmeter, check th[...]

  • Page 10

    BUNN E spr ess™ ES•2A™/ES•2SA™ 8 START-UP Retighten the tank cover bolts, nuts, flat section strips, tank heaters, and the individual tank section lids (at upper part of the tank). Fill the tank with water to the optimum water level zone (N) using the water feed tap. In the models with and electronic water level control fill the tank to t[...]

  • Page 11

    9 BUNN E spr ess™ ES•2A™/ES•2SA™ PUSH-BUTTON SET (AUTOMATICS ONLY) This set is made up of five push-buttons (A,B,C,D, and E) and one pilot light (F). The A, B, C, and D push-buttons are used to select the four possible water dosed and the E push-button is for continuous infusion injection. The F pilot light indicates that the unit is oper[...]

  • Page 12

    BUNN E spr ess™ ES•2A™/ES•2SA™ 10 BREWING COFFEE EXTRACTION 1. Place ground coffee in the filter holder, shake it level, and compress the bed of coffee with the tamper on the grinder. 2. Clean the edge of the filter holder with the palm of the hand before locking it on to the set. This will prevent any coffee particles from imbedding them[...]

  • Page 13

    11 BUNN E spr ess™ ES•2A™/ES•2SA™ CLEANING CLEANING 1. The use of a damp cloth rinsed in any mild, nonabrasive, liquid detergent is recommended for cleaning all surfaces on Bunn-O-Matic equipment. 2. A cleaning cycle must be ran nightly. To do this: a) insert solid filter basket into filter holder. b) Put 1 teaspoon of Cascade cleaning de[...]

  • Page 14

    BUNN E spr ess™ ES•2A™/ES•2SA™ 12 TR OUBLESHOO TING 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 1-800-637-8606. • Inspection, testing, and r[...]

  • Page 15

    13 BUNN E spr ess™ ES•2A™/ES•2SA™ TR OUBLESHOO TING Probable cause Pump Start switch Limit thermostat Tank heaters Remedy When starting switch is pressed, pump should turn on immediately. If this dies not happen, check voltage at terminal block on the pump.. If correct voltage is present, use a flat-blade screwdriver to turn the motor sha[...]

  • Page 16

    BUNN E spr ess™ ES•2A™/ES•2SA™ 14 BO ARD REPLA CEMENT PUSH-BUTTON BOARD CONNECTIONS All the set push-button boards are the same and are to be coded only according to the place they occupy with respect to the infusion units. The numbering order of the infusion units (lst, 2nd, 3rd and 4th), always counted facing the machine and from left t[...]

  • Page 17

    15 BUNN E spr ess™ ES•2A™/ES•2SA™[...]

  • Page 18

    BUNN E spr ess™ ES•2A™/ES•2SA™ 16 1 23 4 6 5 7 13 14 15 16 17 18 19 20 27 28 26 12 11 10 9 8 P-225 21 22 25 24 23 REPLA CEMENT P AR TS[...]

  • Page 19

    17 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................. Vented top panel (hood) ......................... 22795.0000 2 .................. Top cup warmer panel ............................ 22319.0001 3 .................. Divider panel .......................................... 22782.0000 4 .................. H[...]

  • Page 20

    BUNN E spr ess™ ES•2A™/ES•2SA™ 18 24 9 12 13 14 15 16 17 18 19 20 21 22 23 26 28 P-235 5 4 29 30 7 6 5 4 3 1 2 10 8 11 27 25 REPLA CEMENT P AR TS REPLA CEMENT P AR TS[...]

  • Page 21

    19 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................. Inlet water fitting ..................................... 22849.0000 2 .................. Brew water inlet tube .............................. 22614.0000 3 .................. Heat exchanger bulkhead ....................... 22835.0000 4 ..................[...]

  • Page 22

    BUNN E spr ess™ ES•2A™/ES•2SA™ 20 Figure Description Part Number 1 .................. Solenoid mounting screws ...................... 24005.0400 2 .................. Solenoid assembly .................................. 22712.0000 3 .................. Group head end plug .............................. 22806.0000 4 .................. Group [...]

  • Page 23

    21 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................... Tank drain screw .......................................... 24006.0400 2 .................... Tank drain screw gasket .............................. 22836.0000 3 .................... Lower sight gauge elbow ............................. 22644.0000 4 ..[...]

  • Page 24

    BUNN E spr ess™ ES•2A™/ES•2SA™ 22 2 3 4 5 1 7 6 15 14 13 12 11 10 9 8 22 21 20 16 17 18 19 23 26 28 27 29 34 33 30 31 32 24/25 Complete v alv e assy .– Part # 22685.0000 P-240 REPLA CEMENT P AR TS[...]

  • Page 25

    23 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................. Actuator shaft - steam valve .................... 22684.0000 2 .................. Steam valve collar nut ............................. 22824.0000 3 .................. Insert washer ........................................... 22862.0000 4 ................[...]

  • Page 26

    BUNN E spr ess™ ES•2A™/ES•2SA™ 24 REPLA CEMENT P AR TS 1 2 2 3 4 4 5 6 14 13 12 11 10 8 7 9 15 16 19 20 18 17 21 22 23 25 24 26 27 28 29 30 31 32 30 Complete v alv e assy .– (items 1-14) Part # 22637.0000 Complete assy .– Part # 22658.0000 P-239[...]

  • Page 27

    25 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................. Hex nut – plunger shaft ........................... 22863.0000 2 .................. Black thrush washer ................................ 22624.0000 3 .................. Faucet valve detent pins .......................... 22845.0000 4 ..................[...]

  • Page 28

    BUNN E spr ess™ ES•2A™/ES•2SA™ 26 2 3 4 5 11 1 9 8 7 6 12 13 14 15 17 10 16 P-238 REPLA CEMENT P AR TS[...]

  • Page 29

    27 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................. Dispense nozzle - 2 cup ......................... 22802.0000 2 .................. Nozzle seal washer ................................. 22803.0000 3 .................. Filter holder ............................................ 22801.0200 4 ...............[...]

  • Page 30

    BUNN E spr ess™ ES•2A™/ES•2SA™ 28 38 P-237 27 28 37 39 19 22 21 20 23 30 31 34 33 32 11 12 13 14 2 3 4 5 1 15 16 17 9 7 8 10 18 6 24 25 26 29 35 36 REPLA CEMENT P AR TS[...]

  • Page 31

    29 BUNN E spr ess™ ES•2A™/ES•2SA™ Figure Description Part Number 1 .................. Pressure switch - heater control .............. 22574.0000 2 .................. Pressure gauge mounting bracket ............ 22645.0000 3 .................. Front hood face plate - 2 group ............... 22796.0000 4 .................. Pump pressure gau[...]

  • Page 32

    BUNN E spr ess™ ES•2A™/ES•2SA™ 30 Figure Description Part Number 1 .................. Red push button on/off switch ................. 22687.0000 2 .................. Brew indicator light ................................ 22689.0000 3 .................. Switch/lamp mounting bracket screw ...... 24005.0200 4 .................. Switch/lamp mo[...]

  • Page 33

    31 BUNN E spr ess™ ES•2A™/ES•2SA™ Replacement Parts Not Illustrated Figure Description Part Number 1 .......... Water strainer 3 ⁄ 8 ” x 3 ⁄ 8 ” mflrd ............................................... 01245.0000 2 .......... Cordset ............................................................................... 01699.0000 3 ........[...]

  • Page 34

    BUNN E spr ess™ ES•2A™/ES•2SA™ 32 P-243 SCHEMA TIC ES•2SA[...]

  • Page 35

    33 BUNN E spr ess™ ES•2A™/ES•2SA™ P-244 SCHEMA TIC ES•2A[...]