ITB/ITCB ICB/TWIN Infusion Series® PROGRAMMING MANUAL BUNN-O-MATIC CORPORATION POST OFFICE BOX 3227 SPRINGFIELD, ILLINOIS 62708-3227 PHONE: (217) 529-6601 FAX: (217) 529-6644 41581.
BUNN-O-MATIC 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 parts and 1 year labor.
ITB INTRODUCTION This equipment will brew tea into an awaiting dispenser or reservoir. It is only for indoor use on a sturdy counter or shelf. The ITB uses recipe settings to brew tea. It has an LCD for digital readout and programming. The user is able to select regular or quick brew for tea programming. Other features include Pre-Infusion and Pulse Brew, quick and standard brew, Energy Savings mode, BUNNLink compatible, Freshness Timer, Sanitation Alert, and brew counters.
ICB PROGRAMMING THE BREWER PROGRAMMING FUNCTIONS - FLOW CHART BREW LOCKOUT? PROGRAMMING FUNCTIONS - LEVEL I NO DONE YES PROGRAMMING FUNCTIONS - LEVEL 2 SET LANGUAGE? NO YES SET NEW RECIPE? NO YES ENABLE SANITATION NO DONE YES SPRAY OZ/M: XX.X (-) DONE (+) ENTER ASSET # NO YES REVIEW RECIPES UNITS METRIC DONE ENG NO DONE (+) (-) ENABL ENERGYSAVR NO DONE DONE YES NO (+) ENTER SERVICE # NO DONE (+) ENABLE FRESH TIMER BYPASS OZ/M: XX.
ICB TWIN PROGRAMMING THE BREWER (cont.
ITB PROGRAMMING FUNCTIONS - FLOW CHART BREW LOCKOUT? PROGRAMMING FUNCTIONS - LEVEL I NO DONE YES PROGRAMMING FUNCTIONS - LEVEL 2 SET LANGUAGE? NO YES REVIEW RECIPES UNITS METRIC DONE ENG MASTER TEMP 205° READY DEGREE 5° (-) (-) DONE (+) ENABL ENERGYSAVR NO DONE YES DONE NO NO DONE YES DONE YES XX REFILL XXX (-) DONE (+) DILUTE OZ/M: XX.X CALIBRATE FLOW? BREW COUNTERS? (-) NO NO DONE (+) ENTER SERVICE # NO YES YES YES YES NO DONE YES SPRAY OZ/M: XX.
ITCB PROGRAMMING FUNCTIONS - FLOW CHART BREW LOCKOUT? PROGRAMMING FUNCTIONS - LEVEL I NO DONE YES PROGRAMMING FUNCTIONS - LEVEL 2 SET LANGUAGE? NO YES REVIEW RECIPES UNITS METRIC DONE ENG NO YES SET NEW RECIPE? MASTER TEMP 205° READY DEGREE 5° NO (-) (-) YES ENABLE SANITATION NO DONE YES DONE (+) ENABL ENERGYSAVR NO DONE DONE (+) ENABLE FRESH TIMER YES NO DONE YES ASSIGN RECIPE NO YES ENABLE ADS? NO DONE YES XX REFILL XXX (-) DONE (+) SPRAY OZ/M: XX.
FACTORY DEFAULTS ICB Brew Lockout Enabled Enabled Disabled Disabled Set Language English English English English Units English English English English Review Recipes √ √ √ √ Assign Recipes √ √ √ √ Set New Recipe √ √ √ X Set (Master) Temp 200° 200° 205° 205° Ready Degree 5° 5° 5° 5° ICB Twin ITCB ITB Enable Ads Disabled Disabled Disabled Disabled Enable Sanitation Disabled Disabled Disable
PROGRAMMING WITH RECIPE CARD NOT AVAILABLE ON ITB Using a RECIPE CARD to load recipes: The RECIPE CARD includes all the information needed READY TO BREW to set up that particular coffee/tea name. The informaWATER TEMP XXX° tion from the RECIPE CARD is loaded into the brewer’s memory by holding the chip area up to the brewer’s POSITION CARD UNDER SENSOR COIL SENSING COIL. This information can include all the recipe settings for that particular name. These can all be loaded in seconds.
PROGRAMMING WITH AD CARD NOT AVAILABLE ON ITB Using an AD CARD to load ADS: The information is loaded into the brewer’s memory by holding the chip area up to the brewer’s SENSING COIL. NOTE: Instructions to program the brewer are printed on the AD CARD. Procedure to program the AD: 1. Remove the funnel(s) if present. 2. Position the RECIPE CARD vertically, so that the top end of the CHIP is beneath the (Left on Twins) SENSING COIL (located on the underneath side of the front display panel). 3.
PROGRAMMING THE BREWER PROGRAMMING FUNCTIONS - LEVEL 1 * BREW LOCKOUT This function allows the operator to prevent or allow brewing if the water temperature is less than the set READY temperature. Procedure for setting Brew Lockout: 1. To access this function screen press and hold the right hidden button. Release when the display reads: BREW LOCKOUT? NO DONE YES Press here Press here Press here for DONE for YES for NO 2. The YES or NO should be flashing.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * UNITS This function allows the operator to select if numeric settings are displayed in English or Metric units. Procedure for setting the Units: 1. Press and hold the right hidden button until the display reads SET LANGUAGE? Press and release the right hidden button until the display reads UNITS. The METRIC or ENG should be flashing. 2. Select METRIC to have settings displayed in Metric units. Select ENG for English units.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 3. Select SHOW. The screen will scroll through all the brew settings for that particular recipe. When finished, the display will return to the recipe name just viewed. 4. To see the settings again, select SHOW. To change settings, select MODIFY. Then the screen will display BREW OZ and a batch light will be blinking. 5. Using (-) or (+), set the amount of brew water to be dispensed for that batch size. 6.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 9. If both batch sizes are correct, press YES. This will advance to the DILUTE OZ (ITCB) or BYPASS % (ICB) 10. Using (-) or (+), set the amount of dilution water for that particular batch size to be dispensed through the dilution nozzle into the tea dispenser (ITCB) or % bypass water to be dispensed around the filter/ grounds (ICB). 11. When finished, press the other batch size and repeat step #10. 12. When finished setting both batch sizes, press and release DONE.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 34. When finished, press the other batch size and repeat step # 33. 35. When finished setting both batch sizes, press and release DONE. 36. The display should now read LAST ON:. Adjust the LAST ON TIME using (-) or (+). If PREINFUSION is desired, set the LAST ON TIME to PreI. 37. When finished, press the other batch size and repeat step # 36. 38. When finished setting both batch sizes, press and release DONE. 39. The display will show the three times just entered.
PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) ICB ITB/ITCB REVIEW RECIPES REVIEW RECIPES NO NO YES NO NAME COFFEE TEA 1 MODIFY SHOW NEXT MODIFY SHOW NEXT BREW OZ: (-) DONE 64 BREW OZ: (+) (-) % BYPASS: 20 (-) DONE NO DRIP TIME: 0:30 DONE (+) DONE 76 (+) DILUTE OZ: 320.0 (+) (-) DONE (+) DILUTE DELAY 00.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * ASSIGN RECIPE to or disable BREW SWITCH(S) This function allows the operator to assign a recipe to (or disable) each of the 3 brew switches (A, B, C). Any saved recipes listed under "REVIEW RECIPES" can be assigned to a brew switch. Only one recipe per brew switch is allowed. Procedure to select switch recipes 1. Press and hold the right hidden switch until the display reads SET LANGUAGE.
NOT AVAILABLE ON ITB PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * SET NEW RECIPE (COFFEE ONLY) To set a new COFFEE recipe using a Smart Funnel and a G9-2T DBC or MHG Grinder: This function allows the operator to set BREW VOLUMES, BYPASS %, PULSE BREW/PREINFUSION TIMES AND DRIP OUT TIMES for each coffee name stored in the grinder’s memory. Certain coffee names are stored in the grinder’s memory.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * SET TEMP - ICB (MASTER TEMP - ITCB) This function allows the operator to adjust the brew water temperature in the tank. This also sets the hot water faucet dispense temperature. Procedure for setting the Set Temp Range: 185° to 205° F (85° - 96° C) 1. Press and hold the right hidden button until the display reads SET LANGUAGE. Press the right hidden button until the display reads SET TEMP. 2.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 12. Select DONE. The display should now read WRITE BTM LINE?. 13. To write the bottom line, select YES. 14. To skip the bottom line, select NO. a. If neither a top nor bottom line was written, the display should now read ENABL SANITATION. b. If only a top line was written, the ad will be displayed followed by SAVE? Proceed to step 18. 15. The display will now read A with a flashing cursor below it.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * ENABLE ENERGY SAVER This function allows the operator to enable the ENERGY SAVINGS mode function and set the idle time. Once the set idle time has expired, the operator can choose to have the heaters either turn off, or reduce the tank holding temp to 140° F (60° C). Procedure to enable energy savings mode: Range: 0.5 to 24.0 hrs If enabled, default setting is 140° F (60° C) tank temperature after 4.0 hrs. idle time. 1.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * REFILL Range: 0 to 155 This function allows the operator to adjust the sensitivity of the refill circuit. This is mainly a troubleshooting feature. Water in different geographical locations can have different conductivities. By adjusting the sensitivity of the refill circuit, this will allow the brewer to operate under various water conditions.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) 2. If the actual flow rate of the nozzle is known but is different than the number on the display, use the (-) and (+) to enter the correct flow rate. 3. When finished, select DONE. This saves the new setting and advances to the next screen, CALIBRATE FLOW. To exit programming and return to the MAIN SCREEN, press ENABLE BREW ON/OFF switch. NOTE: If the flow rate is unknown, proceed to the CALIBRATE FLOW screen.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * CALIBRATE FLOW (cont.) ICB Series ITB/ITCB Series CALIBRATE FLOW? CALIBRATE FLOW? NO YES NO BREW COUNTERS BREW COUNTERS SPRAYHEAD CAL SPRAYHEAD CAL NO NO BYPASS CAL? QUIT YES CONTAINER READY? QUIT YES YES CONTAINER READY? QUIT 60 SEC TO FINISH QUIT (-) DONE (+) (+) (-) DONE (+) NEW DILUTE FLOW XX.X OZM XX.X OZM 5 sec CALIBRATE FLOW? NO YES CALIBRATE SPRAY QUIT START CALIBRATE SPRAY SPRAYHD OZ XX.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) NOTE: If the display is already on the DILUTION CAL screen, skip steps 2-3 and proceed directly to step 4. 2. Press and hold the right hidden switch until the display reads SET LANGUAGE. Press and release the right hidden switch until the display reads CALIBRATE FLOW? 3. Select YES to advance to SPRAY HEAD CAL screen. Select NO to advance to DILUTION CAL. 4. Select YES.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * BREW COUNTERS This function allows the operator to track the total number of brew cycles completed, as well as the number of batches brewed using each of the brew buttons. There are (up to) six resettable counters, and one life counter that is not resettable. Procedure to view/reset the brew counters: 1. Press and hold the right hidden switch until the display reads SET LANGUAGE.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * SET RECIPE TEMPS (ITCB only) This function allows the operator to set separate temperatures for each selected recipe. NOTE: Setting recipe temps will override the MASTER TEMP. The tank will hold at the lowest temperature between the three selected recipes stored in the brew buttons.
PROGRAMMING THE BREWER (cont.) PROGRAMMING FUNCTIONS - LEVEL 2 (cont.) * ASSET NUMBER This function allows the operator to enter the machine's asset number. This can be useful for tracking the usage or service of an individual machine within a group. Procedure to enter the asset number: 1. Press and hold the right hidden switch until the display reads SET LANGUAGE. Press and release the right hidden switch until the display reads ENTER ASSET #? 2. Select YES. The display will now read ANXXXXXX. 3.
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. • • • • • • • Inspection, testing, and repair of electrical equipment should be performed only by qualified service personnel. All electronic components have 120-240 volt ac and low voltage dc potential on their terminals.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Temperature Too Low 1. Water temperature in the tank does not meet the ready temperature. A) Wait for the brewer to heat to the proper temperature. 1. Tank Heater failure. Service required 2. Control Board/Thermistor failure Service required 1. Water shut off to brewer Check water supply shut-off 2. Inlet Solenoid failure Service Required 3. Control Board Failure Service Required 4.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Brew cycle will not start 1. No water Check plumbing and shut-off valves 2. No power or incorrect voltage to the brewer Check for voltage across the terminals at the terminal block. 3. ON/OFF switch Test the ON/OFF switch. Refer to the test switch procedures on page 50. 4. Brew switch Test the BREW switch. Refer to the test switch procedures on page 50. 5. Brew valve Test the brew valve. Refer to the test outputs procedures on page 48. 6.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Automatic refill will not operate or display shows FILL TIME TOO LONG 1. No water Check plumbing and shut-off valves 2. Refill probe or Sensitivity setting Remove the strainer and check for obstructions. Clear or replace. 3. Refill valve Check the sensitivity setting. Refer to the REFILL function on page 40. If the left three digit number is less than the right number, the machine “thinks” it is full and the refill valve should be off.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE Automatic refill will not operate or display shows FILL TIME TOO LONG (Continued) REMEDY Refill valve – Disconnect the brewer from the power source and remove wires from refill valve coil. Check for continuity across the terminals of the solenoid coil. If continuity is not present, replace the refill valve. If continuity is present, the coil may be stuck closed. Shut water off to brewer. Press the ON/OFF switch to turn off the brewer.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water flows into tank continuously with power removed from brewer. 1. Refill valve Foreign material lodged in valve, holding it in open state. 2. Refill probe or sensitivity setting Check the sensitivity setting. Refer to the REFILL function on page 40. If the left three digit number is less than the right number, the machine “thinks” it is full and the refill valve should be off.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Water will not heat or display shows HEATING TIME TOO LONG. 1. Limit Thermostat Remove power from the brewer. Check for continuity through the limit thermostat. CAUTION: Do not eliminate or bypass limit thermostat. Use only replacement part 29329.0001. 2. Temperature probe Remove the probe from the grommet and submerge in a water bath of approximately 70°F (21°C). Connect an ohmmeter to the pins in the connector.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY No bypass water 1. Bypass valve Test the bypass valve. Refer to the test outputs procedures on page 48. 2. Recipe settings 1. Lime buildup Check to make sure bypass % has been set for the current recipe. Inspect the probe and tank assembly for excessive lime deposits. Delime as required. 2. Temperature probe Remove the probe from the grommet and submerge in a water bath of approximately 70°F (21°C).
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Inconsistent beverage level in server/dispenser 1. Improper water pressure Check operating water pressure to the brewer. It must be between 20 and 90 psi (138 and 620 kPa). 2. Brew valve Test the brew valve. Refer to test outputs on page 48. Turn the valve on for 30 seconds and collect the water dispensed from the sprayhead. Repeat the test several times to confirm a consistent volume of dispensed water.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Dripping from sprayhead. 1. Brew valve Repair or replace leaky valve Water overflows filter. 1. Type of paper filter BUNN paper filters should be used for proper extraction 2. No sprayhead Check sprayhead 1. Beverage left in server from previous brew The brew cycle should be started only with an empty server under the funnel. 2.
TROUBLESHOOTING (cont.) PROBLEM PROBABLE CAUSE REMEDY Weak beverage. 1. Type of paper filter BUNN paper filters should be used for proper extraction 2. Coffee For coffee, a sufficient quantity of fresh drip or regular grind should be used for proper extraction. 3. Sprayhead Bunn-O-Matic sprayhead should be used to properly wet the bed of ground coffee in the funnel 4. Funnel Loading The BUNN paper filter should be centered in the funnel and the bed of grounds leveled by gently shaking. 5.
