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®
BUNNEspress
ESPRESSO/CAPPUCCINO
COFFEE BREWERS
DISCONTINUED VERSION
The information in this manual
is no longer current.
P-244/P-245
TM TM
E S • 2 A / E S • 2 S A
ES•2 A / ES•2S A
OPERATING & SERVICE MANUAL
BUNN-O-MATIC CORPORATION
POST OFFICE BOX 3227
SPRINGFIELD, ILLINOIS 62708-3227
PHONE: (217) 529-6601 FAX: (217) 529-6644
22700.0000A 11/93 ©1993 Bunn-O-Matic Corporation
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ES•2A™/ES•2SA™ INDEX BUNN Espress™ Warranty..............................................................2 User Notices........................................................3 Features .......................................................... 4-5 Installation Plumbing...............................................6 Electrical Requirments and Hook-up ....7 Initial Setup ...........................................8 Programming ........................................9 Brewing Procedures ........
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ES•2A™/ES•2SA™ WARRANTY BUNN Espress™ 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 was not manufactured by Bunn or that, in Bunn’s judgement, has been affected by misuse, neglect, alteration, improper installation or operation, improper maint
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ES•2A™/ES•2SA™ USER NOTICES BUNN Espress™ The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels. This equipment is to be installed to comply with the Basic Plumbing Code of the Building Officials and Code 24247.0000 Administrators International, Inc. (BOCA) and the Food Service Sanitation Manual of the Food and Drug Administration (FDA). 00656.0000 CAUTION HOT Liquid-Steam-Surfaces 24246.0000 ! WARNING Fill water tank before turning -on thermostat or
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ES•2A™/ES•2SA™ FEATURES BUNN Espress™ 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 controlled by knobs located on the left and right side of the brewer, right knob controls the right side steam tube and the left knob controls the left side steam t
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ES•2A™/ES•2SA™ BUNN Espress™ FEATURES 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 6 4 3 9 11 10 2 12 1 P-158 Group head (Espresso extraction chamber) The group head-espresso extraction chamber is where the coffee infusion takes place. After extrac
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ES•2A™/ES•2SA™ PLUMBING BUNN Espress™ 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. The water inlet fitting is a 3/8 flare. This equipment is to be installed to comply with the Basic Plumbing code of the Building Officials and Code Administrators
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ES•2A™/ES•2SA™ BUNN Espress™ ELECTRICAL 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 the voltage and color coding of each conductor at the electrical source. 3. The plug for the brewer is to be supplied by the installer. 4. Attach the plug
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INITIAL SETUP ES•2A™/ES•2SA™ BUNN Espress™ 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 the minimum water level zone (-). Connect the electrical system. Turn on the toggle switch located on the base (left side bottom). The indicator lam
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ES•2A™/ES•2SA™ BUNN Espress™ PROGRAMMING 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 operating. To Shut off the infusion injection process (STOP), press any of the push-buttons (A, B, C, D, or E) F D E A BC PROGRAMMING DOSIFICATIONS To ch
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BREWING ES•2A™/ES•2SA™ BUNN Espress™ 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 themselves into the group gasket. 3. Place the filter holder in the set and twist it to the right until tight. Do not force the filter holder excessively. 4. Press any
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ES•2A™/ES•2SA™ CLEANING BUNN Espress™ 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 detergent into filter basket. c) insert filter holder into group head d) run brew cycle e) repeatedly start and stop brew cycles while observing drain cup under drip t
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TROUBLESHOOTING ES•2A™/ES•2SA™ BUNN Espress™ 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 repair of electrical equipment should be performed only by qualified service personnel. • Solenoid removal requires interrupting the water supply to the valve. Damage may
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ES•2A™/ES•2SA™ TROUBLESHOOTING BUNN Espress™ Problem Probable cause Remedy Brew cycle will not Pump When starting switch is pressed, pump start (cont.) 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 shaft on the rear end of the motor to see if the pump itself is locked up. If the shaft dies no turn, replace pump assembly. Remove the solenoid valve and clear it of an
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BOARD REPLACEMENT ES•2A™/ES•2SA™ BUNN Espress™ 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 to right. Printed circuit Wiring connector board P-137 Terminals for locating the jumper on the push button board, depending on the unit being connected (See diagram be
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ES•2A™/ES•2SA™ BUNN Espress™ 15
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ES•2A™/ES•2SA™ REPLACEMENT PARTS BUNN Espress™ P-225 16 1 23 4 5 6 7 8 28 27 26 25 24 23 9 10 11 22 21 19 18 17 16 15 14 13 12 20
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ES•2A™/ES•2SA™ BUNN Espress™ REPLACEMENT PARTS Figure Description Part Number 1 .................. Vented top panel (hood) ......................... 22795.0000 2 .................. Top cup warmer panel ............................ 22319.0001 3.................. Divider panel.......................................... 22782.0000 4.................. Hood corner piece (left & right) .............. 22789.0000 5 .................. Cage nut (10-32) ..................................... 22851.0000 6 ...
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ES•2A™/ES•2SA™ BUNN Espress™ REPLACEMENT PARTS REPLACEMENT PARTS P-235 18 11 12 13 10 9 14 8 7 6 15 5 4 3 2 1 17 16 18 19 20 21 22 24 26 23 25 28 27 30 29 4 5
