Instruction/ maintenance manual of the product SH Bunn
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BUNN-O-MA TIC CORPORA TION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 www .bunnomatic.com OPERA TING & SER VICE MANU AL B UNN ® CAUTION CAUTION DISCARD DECANTER DISCARD DECANTER IF: IF: . C R A C K E D .
Page 2 W ARRANTY 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.
Page 3 00656.0000 ! WARNING HOT WATER 00831.0000 00658.0000 20201.5600 USER NOTICES The notices on this brewer should be kept in good condition. Replace unreadable or damaged labels. 32248 100500 INTRODUCTION This brewer utilizes BUNN® DBC™ technology to control most of its functions.
Page 4 32248 100500 PLUMBING HOOK-UP 1. Flush the water line and securely attach it to the flare fitting located on bottom of brewer. 2. Turn on the water supply. PLUMBING REQUIREMENTS This brewer must be connected to a cold water system with operating pressure between 20 and 90 psi (138 and 620 kPa) from a 1 ⁄ 2 " or larger supply line.
Page 5 INITIAL SET -UP CAUTION – The brewer must be disconnected from the power source throughout the initial set-up, except when specified in the instructions. 1. Insert an empty funnel into the funnel rails of one of the brew stations. 2. Place an empty server under the funnel.
Page 6 32248 100500 DBC CONTROLLER General This brewer utilizes BUNN® DBC™ technology to control most of its functions. The controller is factor y set to brew in accordance with accepted coffee industr y standards, yet may be customized by the owner to achieve a variety of coffee flavor profiles.
Page 7 32248 100500 Setting or adjusting the brewer’ s controls Refer to the function list for the accessible screen numbers and their values. Scroll to the desired function screen and change the value by pressing either the “+” or “–“ keys.
Page 8 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.
Page 9 Brew cycle will not start (cont.) Automatic refill will not operate Beverage level will not adjust (Selector switch in any position) Remedy 4. Start switch 5. Dispense valve 6. Brew selector switch 7. Defective DBC 1. No water 2. Water strainer 3.
Page 10 Water flows into tank continuously . Water from tank is not hot 1. Solenoid valve 2. Defective DBC 3. Overflow protection switch 1. Limit thermostat CAUTION - Do not eliminate or by- pass limit thermostat. Use only B.O.M. part #23717.0001 2. Defective DBC 3.
Page 11 TROUBLESHOOTING (cont.) Spitting or unusual steaming from sprayhead or airvents. Inconsistent beverage level in server. Consistently high or low beverage level in server. Dripping from sprayhead. Water overflows server. 1. Lime build-up CAUTION - Tank and tank compo- nents should be delimed regularly depending on local water conditions.
Page 12 TROUBLESHOOTING (cont.) Water overflows filter (cont.) Beverage overflows server. Weak beverage 2. Type of paper filters 3. No sprayhead 1. Beverage left in server 2. Volume adjustment needed 3. Dispense valve 1. Type of paper filters 2. Coffee 3.
Page 13 TROUBLESHOOTING (cont.) Brewer is making unusual noises. Server will not heat 1. Solenoid valve 2. Plumbing lines 3. Water supply 4. Tank heaters 1.
Page 14 C A U T I O N CAUTION D I S C A R D D E C A N T E R DISCARD DECANTER I F : IF: . C R A C K E D . CRACKED . S C R A T C H E D . SCRATCHED . B O I L E D D R Y . BOILED DRY . H E A T E D W H E N E M P T Y . HEATED WHEN EMPTY . U S E D O N H IG H F L A M E .
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Page 16 SERVICE (cont.) BREW SELECTOR SWITCH Location: The brew selector switches are located in the front left and right side of the hood. Test Procedure: Timer: Left or Right 1. Disconnect the brewer from the power supply. 2. Separate the connector on the selector switch harness from the brew timer circuit board.
Page 17 P2233 FIG. 5 BREW SELECTOR SWITCH TERMINALS BREW SELECTOR SWITCH (cont.) SERVICE (cont.) Removal and Replacement: 1. Disconnect the connector on the selector switch harness from the DBC controller. 2. Disconnect wires from the selector switch, inter- face socket and dispense valve.
Page 18 CIRCUIT BREAKERS.
Page 19 SERVICE (cont.) DBC DISPLAY 32248 100500 CAUTION D IS C A R D D E C A N T E R DISCARD DECANTER IF : IF: . CR A CK ED . CRACKED . SC R A TC HED . SCRATCHED . BO ILED DR Y . BOILED DRY . H EA TED WHE N EM PTY . HEATED WHEN EMPTY . USED ON H IG H FLA ME .
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Page 22 SERVICE (cont.) FUNNEL LOCK SOLENOID 32248 100500 FIG. 14 FUNNEL LOCK SOLENOID P2232 Location: The Funnel Lock Solenoids are located inside the hood and to the front right of each dispense valve. Test Procedures: 1. Disconnect the dispenser from the power source.
Page 23 SERVICE (cont.) GRINDER INTERFACE CIRCUIT BOARD 32248 100500 FIG. 16 GRINDER INTERFACE CIRCUIT BOARD P2232 Location: The Grinder Interface Circuit Board is located inside the trunk housing on a bracket just below the Tank Assy. Test Procedures: 1.
Page 24 GRINDER SELECTOR SWITCH FIG. 18 GRINDER SELECTOR SWITCH C A U T I O N CAUTION D I S C A R D D E C A N T E R DISCARD DECANTER I F : IF: R A C K E D . CRACKED C H E D . SCRATCHED Y . BOILED DRY M P T Y . HEATED WHEN EMPTY . USED ON HI GH FLAME .
Page 25 Location: The limit thermostat is located inside the hood on the tank lid just to the left of the right tank heater. Test Procedure: 1. Disconnect the brewer from the power supply.
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Page 27 SERVICE (cont.) RECEPTACLE ASSEMBLIES.
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Page 30 SERVICE (cont.) START/STOP SWITCHES Location: The momentary START/STOP switches are lo- cated in front of hood just left and right of center. Test Procedure: 1. Disconnect the brewer from the power source. P2235 CAUTION DISCARD DECANTER DISCARD DECANTER IF: IF: .
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Page 33 FIG. 36 TRANSFORMER TERMINALS.
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An important point after buying a device Bunn SH (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Bunn SH yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Bunn SH - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn SH you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn SH will certainly help you make a decision on the purchase.
If you already are a holder of Bunn SH, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Bunn SH.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn SH. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn SH along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
