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Bunn G9WD-RH - page 1
G9WD-RH INST ALLA TION & OPERA TING GUIDE BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 F AX: (217) 529-6644 T o ensure you have the latest revision of the Operating Manual, or to view the Illustrated Parts Catalog, Programming Manual, or Service Manual, please visit the Bunn-O-Matic webs ...
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Bunn G9WD-RH - page 2
2 41451.0001 041410 BUNN-O-MA TIC COMMERCIAL PRODUCT WARRANTY Bunn-O-Matic Corp. (“BUNN”) warrants equipment manufactured by it as follows: 1) All equipment other than as specified below: 2 years parts and 1 year labor . 2) Electronic circuit and/or control boards: parts and labor for 3 years. 3) Compressors on refrigeration equipment: 5 years ...
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Bunn G9WD-RH - page 3
3 USER NOTICES Carefully read and follow all notices on the grinder and in this manual. They were written for your protection. All notices on the grinder are to be kept in good condition. Replace any unreadable or damaged labels. #20545.0000 CONTENTS Introduction ...................................................................................... ...
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Bunn G9WD-RH - page 4
4 ELECTRICAL REQUIREMENTS This grinder has an attached cord set and requires 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz. OPERA TING CONTROLS Grind Pad (a) Pressing initiates a grind cycle. Stop Pad (b) Pressing ends the operation of the grinder . ® Pad (c) Pressing the copyright pad allows programming access. Pads (d) ...
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Bunn G9WD-RH - page 5
5 COFFEE GRINDING 1. Visually inspect the hopper for an ample supply of whole bean coffee. 2. Place a paper filter into the brew funnel. The filter must not be folded-over or tilted to one side. 3. Insert the funnel into the funnel rails until it stops. 4. Select batch size desired (e). 5. Momentarily press the “ST ART” switch (a). The grindi ...
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Bunn G9WD-RH - page 6
6 CLEANING WARNING – Unplug grinder before the removal of any panel or grind chamber -housing parts. 1. Clean all exterior surfaces using a damp cloth rinsed in any mild, nonabrasive, liquid detergent. Care should be taken not to scratch the grinder with any abrasive material. 2. Remove the hopper by sliding all the way forward. 3. Remove the lid ...
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Bunn G9WD-RH - page 7
7 GLOSSAR Y GRIND OZ: ##.## (-) DONE (+) Adjust current weight setting using (-) and (+) buttons Allows adjustment of current time setting Adjust current time setting us- ing (-) and (+) buttons Allows adjustment of other batch sizes (multiple batch size grinders only) T est individual inputs and out - puts Allow selection of grinder mo- tor test T ...
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Bunn G9WD-RH - page 8
8 GROUND COFFEE COUNTER The grinder will keep a running total of the pounds of coffee the grinder has ground. This running total is shown in the “PmBurrsLbs #” menu, under the “SERVICE TOOLS” menu. This running total can be used to determine when the grinding burrs need cleaning or replacement. Pressing the button under “RESET” will res ...
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Bunn G9WD-RH - page 9
9 COMMUNICA TING WITH THE GRINDER Press the hidden (copyright) button for 1 second Press right hidden (copyright) button to scroll to next screen Press right hidden (copyright) button to scroll to next screen Pressing “PREV” scrolls to the previous coffee name Pressing “NEXT” scrolls to the next coffee name Pressing “NEXT” scrolls to th ...
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Bunn G9WD-RH - page 10
10 COMMUNICA TING WITH THE GRINDER (Continued) From previous page Loop back to “COFFEE NAME” Press “GRIND” button to start coffee calibration The small batch size will flash, press (-) or (+) to adjust grind weight. After first batch size is set, additional batch sizes can be set by pressing appropriate batch size button. Press “DONE” a ...
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Bunn G9WD-RH - page 11
11 COMMUNICA TING WITH THE GRINDER (Continued) Pressing any switch in this mode will display the switch name in the grinder display . After the funnel is “tared” add a calibrated weight to check scale. return to “F ACTORY DEF AUL TS” screen TEST FREQUENCY ? NO YES TEST SWITCHES ? NO YES TEST GRIND MOTOR NO YES TEST SCALE ? NO YES SWITCHES E ...
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Bunn G9WD-RH - page 12
12 COMMUNICA TING WITH THE GRINDER (Continued) LEVEL 2 FUNCTIONS: Press the hidden (copyright) button for 3 seconds in “ENTER P ASSWORD” menu. Finished, returns to main screen MODIFY MAXBIT NO SPREAD? YES CALIBRA TE SCALE ? NO YES MACHINE TYPE WEIGHT TIMED SHUT off Bits ## (-) DONE (+) MaxBits read # (-) DONE (+) PLEASE WAIT CAL PLACE 8.00 oz E ...
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Bunn G9WD-RH - page 13
13 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 T echnical Ser vice Department. • Inspection,testing andrepair ofelectrical equipmentshould ...
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Bunn G9WD-RH - page 14
14 Check that relay contacts close when start switch is pressed. With a voltmeter , check that 120 volts AC is present across L1 and L2 on the rear of the motor when the Start switch is pressed. If volt- age is present, and motor does not start, replace motor . Use “TEST SWITCHES?” menu un- der “SERVICE TOOLS?” menu in level 1 functions to ...
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Bunn G9WD-RH - page 15
15 BLK WHT RED RED VIO BLK BLK VIO VIO K1 N.O. M K1 BLK WHT L1 N L1 L2 1 4 J1 CONTROL CIRCUIT BOARD LOAD TRANSDUCER BLK GRN WHT RED 1 4 J7 GRN SCHEMA TIC WIRING DIAGRAM G9WD-RH 120 VOL TS AC 2 WIRE SINGLE PHASE 60 HZ BLK VIO T1 LINE LOAD WHT BLK RED RED 1 2 4 5 YEL YEL BLK WHT J13 1 5 10 16 BUTTON BUTTON FUNNEL BrewWISE Models only SENSOR J12 1 5 V ...
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