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Summary of Contents for Bunn ITCB Series
- Page 1 BUNN TECHNICAL TRAINING ® ITCB...
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Page 2: Table Of Contents
PM Steps ..........................17 Unit 5: Troubleshooting Service Tools ........................20 Test Outputs ......................... 20 Test Switches ....................... 21 Test Frequency ......................21 Service Fault Messages ..................... 21 Triac Map ..........................22 © 2009 Bunn-O-Matic Corporation. All Rights Reserved Rev. A... -
Page 3: Unit 1: Installation
nstallation Unit Objectives Given a realistic scenario depicting a new site install, the learner will be able to install and setup the brewer for retail turnover without error. Given a new machine, all the necessary tools and safety equipment, the learner will be able to install the brewer without error. -
Page 4: Site Requirements
Level installation surface, brewer level on the surface Water Treatment • Sediment filtration to reduce large particles • Taste and odor filter to remove chlorine • Scale filtration as needed • For best results a Bunn Easy Clear filtration system should be used ® Plumbing • .75-11.5 NH (hose thread) fitting (¼” flare adapter included) • Dedicated water supply with shut-off • Connected to the cold water supply •... -
Page 5: Electrical Install
WATER TEMP XXXXº Once the water temperature has reached the programmed Brew Lockout temperature it will display the ready screen. The machine will continue to heat until it reaches its programmed shut-off temperature. READY TO BREW WATER TEMP: 205º Bunn-O-Matic Corporation... -
Page 6: Unit 2: Setup
etup Unit Objectives Given a realistic scenario depicting a new site install, the learner will be able to install and setup the brewer for retail turnover without error. Given an installed machine, all the necessary tools and safety equipment, the learner will be able to set the machine up for initial operation. -
Page 7: Setup And Programming
Remove the top panel, locate the switch and place it into the Unlock position. MEMORY PROGRAMMING LOCKOUT SWITCH P3048 Note: Prior to serial number ICB00007479, the lockout switch will be located on the memory module board. Level 1 Programming Press the hidden switch for one second to access. This function allows the operator to prevent or allow brewing if the water temperature is BREW LOCKOUT ? less than the Set Ready temperature. DONE Bunn-O-Matic Corporation... -
Page 8: Level 2 Programming
Level 2 Programming Press and hold the hidden switch for 5 seconds Set Language? This function allows the operator to select the language used for the display. UNITS This function allows the operator to select if numeric settings are displayed in English or Metric units. Metric DONE This function allows the operator to view the brew settings for the carious coffee recipes REVIEW RECIPES ? stored into the brewer. - Page 9 (diagnostic tool for troubleshooting purposes only). Refer to Service Manual for in depth procedures. This function allows the operator to erase all of the previously entered recipes and ad FACTORY DEFAULTS messages. Factory-set default values will replace All previous settings. Bunn-O-Matic Corporation...
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Page 10: Uploading A Recipe Using A Recipe Card
Uploading a Recipe Using a Recipe Card The recipe card includes all the information needed to set up that particular tea/coffee name. The information from the recipe card is loaded into the brewer’s memory by holding the chip area up to the brewer’s sensing coil. This information can include all the recipe settings for that particular name. -
Page 11: Calibrating The Dilution Flow Rate
Disabled Set Language English Units English Master Temp 205º Ready Degree 5º Enable Ads Disabled Enable Sanitation Disabled Enable EnergySavr Disabled Enable Fresh timer Disabled Refill Spray Oz. 24.0 Dilution Oz. 71.0 Set Recipe Temps Coffee: 200º/Tea: 205º Bunn-O-Matic Corporation... -
Page 12: Unit 3: Machine Composition
achine oMposition Unit Objectives Given a realistic scenario in which the learner has access to the machine’s internal components the learner will understand the composition and functions of the brewer. Given a realistic scenario requiring the learner to access the internal components of the machine the learner will be able to remove rear panel and top panel. -
Page 13: Exterior Overview
G. BATCH SELECTOR PADS Pressing the pad corresponding to the Half or Full batch selects the amount of product to be brewed. Pressing a different pad after a brew cycle has been initiated does not change the brew batch in progress. Light indicates the selected batch to brew. Also used in programming to adjust settings on both batch sizes. Bunn-O-Matic Corporation... -
Page 14: Accessing The Inside Of The Brewer
Accessing the Inside of the Brewer The majority of service work to the ITCB brewer will require the removal of either the rear panel or the top panel. The top panel is secured with 1 flathead screw. The rear panel is secured with either 6, 7 or 10 flathead screws, depend- ing on the age of the machine. Machine Function and Operations Main Control Board The main control is the brain of the brewer. -
Page 15: Dispensing System
The ITCB features quick brew by default, but a delay can be programmed. The brewer will dump water directly into the tea server to dilute the tea concentrate during the tea brew cycle. The dilution solenoid is a 120VAC valve mounted onto the same body as the inlet solenoid. During a tea brew cycle, the dilution solenoid will open; water will flow through a .50GPM flow control washer and out of the dilution nozzle. Bunn-O-Matic Corporation... -
Page 16: Unit 4: Preventive Maintenance
reventive aintenance Unit Objectives Given a realistic scenario depicting a machine requiring a preventive maintenance, the learner will be able to identify which elements of a component need to be serviced without error. Given a machine, all the necessary tools and safety equipment, the learner will be able to identify the components that need to be serviced for the PM. -
Page 17: Preventive Maintenance
In order to maintain proper operation and long service life BUNN recommends performing the preventative main- tenance every 6 months. Individual customers will vary with some customers choosing not to receive preventative maintenance. Tools Required: • Flat blade screwdriver • Channel lock pliers • Needle nose pliers • Deliming tool (BUNN P/N: 38227.0000) Prior to servicing the brewer: • Disconnect the electrical supply •... - Page 18 Step 6: Replace the seat cup in the hot water faucet: □ Unscrew the faucet bonnet from the assembly. □ Remove the old faucet seat cup. □ Install the new seat cup BUNN P/N: 02766.0000. □ Reassembly is the opposite of disassembly. □ Visually examine the power cord for any damage. □...
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Page 19: Unit 5: Troubleshooting
roubleshooting Unit Objectives Given a realistic scenario depicting a broken machine, the learner will be able to effectively troubleshoot, diagnosis, and repair the problem returning the machine to normal operation. Given a machine displaying an error message, all the necessary tools and safety equipment, the learner will be able to diagnosis the problem. -
Page 20: Service Tools
Service Tools The ITCB brewer features on-board troubleshooting. Since all of the machine’s components are controlled or activat- ed by the control board you can activate and test components individually from the user interface. This allows you to listen to solenoid valves opening, observing the flow of water or test to see if a component is receiving voltage using a meter. The Service Tools option is located in Level 2 of the programming. -
Page 21: Test Switches
HEATING TIME temperature with 60 minutes. TOO LONG This message will be shown if the control board does not see the tank fill within 30 min- FILL TIME TOO utes. LONG TEMP SENSOR This message will be shown if the control board looses contact with the temperature sensor or senses a short in the connection. OUT OF RANGE Bunn-O-Matic Corporation... -
Page 22: Triac Map
Triac Map 1. TH10 = Sweetener 2. TH9 = Dilution Valve 3. TH6 = Brew Valve 4. TH4 = Refill Valve 5. TH2 = Funnel Lock Solenoid 6. TH7 = Heater Triac ITCB Training Manual...
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