Instruction/ maintenance manual of the product CDBC-APS 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 BU N N ® CEZ-APS, CDBC.
Page 2 INTRODUCTION This equipment will automatically brew a half-gallon batch of coffee into an awaiting server at the press of a button. A hot water faucet may be included for allied beverage use. Most functions of the brewer are digitally controlled.
Page 3 USER NOTICES Carefully read and follow all notices in this manual and on the equipment. All labels on the equipment should be kept in good condition.
Page 4 ELECTRICAL REQUIREMENTS CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up. Model 15 has an attached cordset and requires 2-wire grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz.
Page 5 OPERA TING CONTROLS Model CEZ-APS/TS/TSR ON/OFF SWITCH Placing the "ON/OFF" switch in the "ON" upper position enables the brew circuit, and energizes the tank refill circuit. Placing the switch in the "OFF" lower position stops tank refilling and brewing.
Page 6 INITIAL SET -UP 1. Insert an empty funnel into the funnel rails. 2. Place an empty server under the funnel. 3. Connect the brewer to the power source. 4. Model CDBC-APS/TS/TSR – Press the "ON/OFF" switch (indicator glowing). Model CEZ-APS/TS/TSR – Place the "ON/OFF" switch in the "ON" upper position.
Page 7 CEZ-APS/TS/TSR ADJUSTMENTS & OPTIONAL SETTINGS.
Page 8 CDBC-APS/TS/TSR ADJUSTMENTS & OPTIONAL SETTINGS Setting Brew Temperature The brewer is factory set to brew at 200 ° F(95 ° C). To change this setting, press and hold the "HIDDEN" switch beneath the "®".
Page 9 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 10 Will not fill or refill PROBABLE CAUSE REMEDY PROBLEM 1. Power off to brewer (CDBC- APS/TS/TSR & CEZ-APS/TS/TSR) 2. Water shut off (CDBC-APS/TS/ TSR & CEZ-APS/TS/TSR) 3. Display flashing (CDBC-APS/ TS/TSR) or ready light flashing (CEZ-APS/TS/TSR) 4.
Page 11 TROUBLESHOOTING (cont.) Fill or refill does not shut "OFF" (ON/OFF Switch "ON") Fill or refill does not shut "OFF" (ON/OFF Switch "OFF") PROBABLE CAUSE REMEDY PROBLEM 1. Lime build up on probe (CDBC- APS/TS/TSR & CEZ-APS/TS/TSR) 2a.
Page 12 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY HEATING CIRCUIT 1. Display flashing (CDBC-APS/ TS/TSR) or ready light flashing (CEZ-APS/TS/TSR) 2. Water not touching tempera- ture probe 3a. Dry Plug In Probe Sensing System (CDBC-APS/TS/TSR) 3b.
Page 13 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water does not heat to proper temperature (cont.) IMPORTANT: Make sure no tem- perature tests are taken before the ready light is "ON". Tank tempera- ture must be stabilized before read- ings are taken.
Page 14 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Spitting or excessive steaming (cont.) Brewer is making unusual noises 2a. Temperature Probe (CDBC- APS/TS/TSR) 2b. Temperature Probe (CEZ-APS/ TS/TSR) 3. Control Board (CDBC & CEZ) 1. Plumbing lines 2.
Page 15 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY BREWING CIRCUIT Brew cycle will not start 1. Display flashing (CDBC-APS/ TS/TSR) or ready light flashing (CEZ-APS/TS/TSR) 2. No water 3. No power or incorrect voltage to the brewer 4. ON/OFF switch not in the "ON" position 5.
Page 16 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY BREWING CIRCUIT (cont.) If the start switch (CEZ-APS/TS/ TSR) or switch panel (CDBC-APS/ TS/TSR) is operating properly, proceed as follows. Attach a volt- meter to the terminals of the dis- pense valve solenoid.
Page 17 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY BREWING CIRCUIT (cont.) Dripping from sprayhead Weak beverage 1. Lime build up 2. Dispense valve 1. Sprayhead 2. Water temperature 3. Filter type 4. Coffee grind 5. Funnel loading Inspect the tank assembly for ex- cessive lime deposits.
Page 18 TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY BREWING CIRCUIT (cont.) Dry coffee grounds remain in the funnel 1. Sprayhead 2. Funnel loading Make sure sprayhead is present and holes are clear and unob- structed. There should be six sepa- rate streams of water coming out of the sprayhead.
Page 19 DIAGNOSTICS Intermittent flashing of the READY indicator (Model CEZ) or the bank of temperature indicators (Model CDBC) indicates that a fault exists. Count the number of flashes between pauses and use this chart as a guide to investigating the fault.
Page 20 BUNN M A N U F A C T U R E D B Y B U N N - O - M A T IC C O R P O R A T IO N S P R I N G F I E L D , I L L I N O I S , U . S . A . M O D E L S / N V O L T S A .
Page 21 BUNN M A N U F A C T U R E D B Y B U N N - O - M A T I C C O R P O R A T I O N S P R IN G F IE L D , I L L I N O I S , U .S . A . M O D E L S / N V O L T S A .
Page 22 TRM2 J1 J2 J3 J4 J5 J6 J7 TRM1 C A U T IO N : W A R M E R S A N D S U R F A C E S A R E H O T SERVICE (cont.) CONTROL BOARD - Model CEZ-APS/TS/TSR Location: The Control Board is located inside the trunk behind the front access panel.
Page 23 BUNN MANUFACTURED BY BUNN-O-MATIC CORPORATION SPRINGFIELD, ILLINOIS, U.S.A. MODEL S/N VOLTS A.C. AMP WATTS PHASE WIRE HERTZ COVERED UNDER ONE OR MOREOF THE FOLLOWING PATENTS : ONE OR MORE OTHER PATENTS MAY BE PENDING SERVICE (cont.) SWITCH PANEL - Model CDBC-APS/TS/TSR Location: The Switch Panel is located in the front of the hood.
Page 24 BUNN MANUFACTURED BY BUNN-O-MATIC CORPORATION SPRINGFIELD, ILLINOIS, U.S.A. MODEL S/N VOLTS A.C. AMP WATTS PHASE WIRE HERTZ COVERED UNDER ONE OR MOREOF THE FOLLOWING PATENTS : ONE OR MORE OTHE.
Page 25 BUNN M ANUFACTURED BY BUNN -O-MATIC CORPORATION SPRINGFIELD, ILLINOIS, U.S.A. MODE L S/N VO LTS A.C. AMP W ATT S PHA SE W IRE HERTZ CO VERED UNDER ONE O R MOREOF THE FO LLOW ING PATENTS : ONE .
Page 26 B U N N M A N U F A C T U R E D B Y B U N N - O - M A T I C C O R P O R A T I O N S P R I N G F I E L D , I L L I N O I S , U . S . A . M O D E L S / N V O L T S A .
Page 27 B U N N M A N U F A C T U R E D B Y B U N N - O - M A T I C C O R P O R A T I O N S P R I N G F I E L D , I L L I N O I S , U . S . A . M O D E L S / N V O L T S A .
Page 28 Location: The tank heater is located inside the tank and secured to the tank bottom. Test Procedures: 1. Disconnect the brewer from the power supply. 2. With a voltmeter, check the voltage across the white or red wire from the terminal block and the black wire from the control board.
Page 29 P1856 SERVICE (cont.) TANK HEATER (Cont.) BLK to Control Board WHI or RED to Terminal Block FIG. 14 TANK HEATER WIRING 29253 071599 17. Install tank assembly onto mounting brackets and secure in place with four #8-32 nuts. 18. Install tank lid and secure in place with eight #8-32 nuts.
Page 30 T R M 2 J1 J2 J3 J4 J5 J6 J7 T R M 1.
Page 31 SOL 29257.0000B 12/99 ©1998 BUNN-O-MATIC CORPORATION TANK HEATER L1 GRN GRN RED-14 (MODEL 35) WHI-14 (MODELS 15 & 20) N L2 BLU-14 BLU-14 "KEEP WARM" HEATER WHI WHI LIMIT THERMOSTAT WHI WHI WHI WHI SOL REFILL DISPENSE J1-1 J1-2 J1-1 J1-5 J1-10 C O N T R O L P C B O A R D COM N.
Page 32 SCHEMA TIC WIRING DIAGRAM CEZ-APS/TS/TSR WHI 29341.0000B 6/99 ©1998 BUNN-O-MATIC CORPORATION WHI WHI BREW SWITCH TANK HEATER.
An important point after buying a device Bunn CDBC-APS (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 CDBC-APS 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 CDBC-APS - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Bunn CDBC-APS you will learn all the available features of the product, as well as information on its operation. The information that you get Bunn CDBC-APS will certainly help you make a decision on the purchase.
If you already are a holder of Bunn CDBC-APS, 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 CDBC-APS.
However, one of the most important roles played by the user manual is to help in solving problems with Bunn CDBC-APS. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Bunn CDBC-APS 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
