Bunn service manual Board Replacement, Push-Button Board Connections, BUNN Espress, ES2A/ES2SA

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BUNN Espress™

BOARD REPLACEMENT

ES•2A™/ES•2SA™

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.

Wiring connector

Printed circuit board

Terminals for locating the

P-137

jumper on the push button board, depending on the unit being connected

(See diagram below)

Location of the jumper when placing the push-button board on unit No. 1

Location of the jumper when placing the push-button board on unit No. 2

Location of the jumper when placing the push-button board on unit No. 3

Location of the jumper when placing the push-button board on unit No. 4

Image 16

Contents BUNNEspress E S 2A TM / ES 2SA TMESPRESSO/CAPPUCCINO COFFEE BREWERS DISCONTINUED VERSION The information in this manualPage BUNN Espress INDEXES2A/ES2SA InstallationWARRANTY USER NOTICES READ THE ENTIRE OPERATING MANUAL BEFORE BUYING OR USING THIS PRODUCTLiquid-Steam-Surfaces 00831.0000F 3/98 1988 BUNN-O-MATIC CORPORATIONFEATURES HOT WATER RINSE DISPENSING TUBE AND STEAM DISPENSING TUBEWATER FEED TAP LEVELGroup head Espresso extraction chamber WATER TREATMENTPLUMBING REQUIREMENTS PLUMBINGPLUMBING HOOK-UP ELECTRICAL SPECIFICATIONS ELECTRICALELECTRICAL HOOKUP L1 240V or L2 GndINITIAL SETUP START-UPPROGRAMMING PUSH-BUTTON SET AUTOMATICS ONLYPROGRAMMING DOSIFICATIONS PREINFUSION PROGRAMMINGCOFFEE EXTRACTION BREWINGOBSERVATIONS CLEANING CLEANINGTROUBLESHOOTING ProblemWARNINGS Probable causeDOSAGE PULSOMETER MALFUNCTION ALARM AUTOMATIC WATER LEVEL MALFUNCTION ALARMBOARD REPLACEMENT PUSH-BUTTON BOARD CONNECTIONSBUNN Espress ES2A/ES2SA REPLACEMENT PARTSBUNN EspressREPLACEMENT PARTS DescriptionBUNN Espress REPLACEMENT PARTS ES2A/ES2SAP-235 REPLACEMENT PARTS Solenoid rebuild kit 22811.0000Group assy.items 22711.0000REPLACEMENT PARTS 22685.0000 Complete valve assyP-240 REPLACEMENT PARTS 22637.0000 Complete assyComplete valve assy.- items 22658.0000REPLACEMENT PARTS P-238 Water inlet hose supply to pump in P-237 REPLACEMENT PARTS 1 .................. Red push button on/off switch Replacement Parts Not Illustrated DescriptionES2SA SCHEMATICP-243 ES2A P-244