Bunn ITCB Single Series Installation guide

BUNN®TECHNICAL TRAINING
ITCB

Index
Unit 1: Installation
Site Requirements .............................................................................................................. 4
Location of the Serial Number .......................................................................................... 4
Water Supply Install ...........................................................................................................4
Electrical Install ..................................................................................................................5
Initial Start-Up ..................................................................................................................... 5
Unit 2: Setup
Setup and Programming.................................................................................................... 7
Programming Lockout................................................................................................. 7
Level 1 Programming ......................................................................................................... 7
Level 2 Programming ......................................................................................................... 8
Uploading a Recipe Using a Recipe Card ........................................................................ 10
Calibrating the Sprayhead Flow Rate ............................................................................... 10
Calibrating the Dilution Flow Rate .................................................................................... 11
Default Values ..................................................................................................................... 11
Unit 3: Machine Composition
Exterior Overview ............................................................................................................... 13
Product Outlets and Removable Parts ......................................................................13
User Interface ...............................................................................................................13
Accessing the Inside of the Brewer.................................................................................. 13
Machine Function and Operations.................................................................................... 13
Main Control Board......................................................................................................13
Filling System...............................................................................................................14
Heating System ............................................................................................................14
Dispensing System...................................................................................................... 14
Dilution System ............................................................................................................ 15
Unit 4: Preventive Maintenance
Preventive Maintenance..................................................................................................... 17
Draining the Tank ...............................................................................................................17
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

Unit Objectives
Un i t 1 in s t a l l a t i o n
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.
The learner will be able to verify that the site requirements have been met.
The learner will be able to locate and document the serial number.
The learner will be able to hook up the water supply.
The learner will be able to hook up the electrical supply.

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Installation
Site Requirements
Space
Height clearance for either 30.87” or 34.04” depending on model•
Footprint able to accommodate 11W x 24D•
Counter able to support 100lbs. (operating weight of the brewer with a full 5 gallon tea server)•
Level installation surface, brewer level on the surface•
Water Treatment
Sedimentltrationtoreducelargeparticles•
Tasteandodorltertoremovechlorine•
Scaleltrationasneeded•
For best results a Bunn Easy Clear• ®ltrationsystemshouldbeused
Plumbing
.75-11.5NH(hosethread)tting(¼”areadapterincluded)•
Dedicated water supply with shut-off•
Connected to the cold water supply•
Water pressure 20-90psi•
Minimumwaterowof1.25GPM•
Electrical (120VAC)
120VAC•
2-wire plus ground (L1, neutral, ground)•
15 amp dedicated circuit (breaker, plug, and receptacle)•
Receptacle within 5 feet of the machine•
Electrical (208VAC or 240VAC)
120/208VAC or 120/240VAC•
3-wire plus ground (L1, L2, neutral, ground)•
20 amp dedicated circuit (breaker, plug, and receptacle)•
Receptacle within 5 feet of the machine•
Location of the Serial Number
The machine’s serial number is located on the data plate which is adhered to the front panel below
the dilution nozzle. The complete serial number will need to be documented on all work orders and
warranty tags. The serial number is also stored in memory on the control board.
Water Supply Install
Step 1:Removetheshippingcapfromthettingontherearofthebrewer.
Step 2:Installthe.75-11.5NHto¼”areadapterontherearofthebrewer;besuretousetheincludedrubber
washer.
Step 3: Flush the water line.
Step 4:Attachthewaterlinetothe¼”arettingonthebackofthemachine.
Step 5: Turn on the water supply.

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Electrical Install
Anelectricianmustprovideelectricalserviceasspeciedinconformancewithalllocal,state,and
federal electrical codes.
The ITCB is a dual voltage unit. There is a voltage switch located on the back of the brewer. The
brewer is wired from the factory with a 2-wire+ground power cord and plug rated for 120VAC at
15amps.For208VACor240VACcongurations,the3-wire+groundpowercordmustbeordered
fromBUNN:P/N:01699.0000.Thetechnicianmustsupplya20amprated,4-wireplug.
For 120V brewers:
Step 1: Plugbrewerintothepowersource.
For 120/208VAC or 120/240VAC brewers:
Step 1: Remove the rear panel.
Step 2: Disconnect the 2-wire+ground cord from the terminal block.
Step 3: Feed the 3-wire+ground power cord through the strain relief.
Step 4: Attach the wire ends to the terminal block.
Step 5: Attach the ground wire to connector below the terminal block.
Step 6: Check that all connections are tight.
Step 7:Placethedualvoltagetoggleswitchinthecorrectposition.
Step 8: Tighten the strain relief and replace the rear panel.
Step 9:Plugtheunitintothepowersource.
Initial Start-Up
Step1:PlacethemainpowerswitchintotheOnposition.
WhenthemachineisturnedonandtheEnableBrewOn/Offswitchispressed,itwillbegintollthetank.
Afterthetankllsthemachinewillautomaticallybegintheheatingcycle.Thiswilltakeapproximately20minutes.
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.
PLEASE WAIT
TANK FILLING
HEATING
WATER TEMP XXXXº
READY TO BREW
WATER TEMP: 205º

Unit Objectives
Un i t 2 se t u p
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.
The learner will be able to power on the machine.
The learner will be able to access and scroll through the programming options.
The learner will be able to perform the calibrations.

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SetupandProgramming
Accessing and using the brewer’s programming features is done from the front panel and requires no special tools.
The programming menu is accessed through a hidden switch located on the right side of the display. The hidden
switch on the left side will allow you to scroll backwards.
A. Right Hidden Switch:This is used to access the programming mode and is also used to scroll forward through the
function list.
B. Left Hidden Switch: This is used to scroll backwards through the function list.
C. Brew A: This is used to select options that appear on the display during programming.
D. Brew B: This is used to select options that appear on the display during programming.
E. Brew C: This is used to select options that appear on the display during programming.
To exit the programming mode at any time, press and release the ON/OFF button located on the user interface. The
display will return to the main screen.
Programming Lockout
If the programming cannot be access then the programming lockout switch is in the Lock position. The switch is
located on the control board. Remove the top panel, locate the switch and place it into the Unlock position.
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
less than the Set Ready temperature.
BREW LOCKOUT ?
ON OFFDONE
HALF
FULL
BREW
A
BREW
B
BREW
C
®
ENABLE
ON / OFF
BREW
A
B
C D E
READY TO BREW
WATER TEMP: 200°
MEMORY
LOCK UNLOCK
PROGRAMMING
LOCKOUT SWITCH
P3048

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Level 2 Programming
Pressandholdthehiddenswitchfor5seconds
This function allows the operator to select the language used for the display.
This function allows the operator to select if numeric settings are displayed in English or
Metric units.
This function allows the operator to view the brew settings for the carious coffee recipes
stored into the brewer. It also allows the operator to modify any of the brew settings for a
particular recipe stored in the brewer.
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.
ThisfunctionallowstheoperatortosetBrewVolumes,Bypass%,PulseBrew/Preinfu-
sion Times and Drip Out Times for each coffee name stored in the grinder’s memory.
This function allows the operator to adjust the brew water temperature in the tank. This
also sets the hot water faucet dispense temperature.
This function allows the operator to set the minimum temperature allowable to start a
brew cycle. The range can be from 2° to 20° F below the set temperature. The water
must be at the Ready temperature or higher for the display to indicate Ready To Brew. If
brew lockout is enabled, the brewing process won’t start below this Ready temperature.
This function allows the operator to choose whether or not to display an advertising mes-
sage. An ad can be saved to the brewer by either writing the ad using the programming
commands, or by entering the ad into the brewer using an Ad Card. This message will
be displayed when the brewer is not in use.
This function allows the operator to enable the sanitation function and set the time be-
fore a cleaning alert will be displayed.
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).
This function allows the operator to enable the Freshness Alert and set the expiration
time. The expiration time is the amount of time the product is allowed to sit in the server/
dispenser before a fresh batch is brewed.
UNITS
Metric ENG
DONE
REVIEW RECIPES ?
NO YES
ASSIGN RECIPE ?
NO YES
SET NEW RECIPE ?
NO YES
MASTER TEMP 205
O
(-) (+)DONE
ENABLE ADS ?
NO YESDONE
ENABLE SANITATION
NO YESDONE
ENABL ENERGYSAVR
NO YES
DONE
ENABLE FRESH TIMER
NO YESDONE
Set Language?
NO YES
READY DEGREE 5
O
(-) (+)DONE

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Thisfunctionallowstheoperatortoadjustthesensitivityoftherellcircuit.Thisis
mainly a troubleshooting feature. Water in different geographical locations can have
differentconductivities.Byadjustingthesensitivityoftherellcircuit,thiswillallowthe
brewer to operate under various water conditions.
Thisfunctionallowstheoperatortovieworentertheactualowratecomingoutofeach
sprayhead.ThisisNotusedtocontroltheactualowrate,buttotelltheinternalproces-
sorhowfastthewaterisowing.
Thisfunctionallowstheoperatortoviewortoentertheactualowratecomingoutof
thedilutionnozzle.Thisisnotusedtocontroltheactualowrate,buttotelltheinternal
processorhowfastthewaterisowing.
Thisfunctionallowstheoperatortotestandentertheactualowrateofthe
sprayhead(s) and the bypass/dilution for each side of the brewer by dispensing each
separately for one minute. The volumes are then entered into the brewer.
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)
three resettable counters, and one life counter that is not resettable.
This function allows the operator to set separate temperatures for each selected recipe.
This function allows the operator to enter the machine’s asset number. This can be use-
ful for tracking the usage or service of an individual machine within a group.
This function allows the operator to enter in the telephone number to call if service is
needed. The service number will be displayed anytime there is a fault message dis-
played.
(ForAuthorizedServicePersonelOnly)
This function allows the testing of individual components and the ability to check
switches for proper function. This function also tests the funnel sensor coil’s frequency
(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
messages. Factory-set default values will replace All previous settings.
XX REFILL XXX
(-) (+)DONE
SPRAY OZ/M: XX.X
(-) (+)DONE
DILUTE OZ/M: XX.X
(-) (+)DONE
CALIBRATE FLOW?
NO YES
BREW COUNTERS?
NO YES
SET RECIPES TEMPS
NO YES
ENTER ASSET #
NO YES
ENTER SERVICE #
NO YES
SERVICE TOOLS
NO YES
FACTORY DEFAULTS
NO YES

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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. These can all be loaded in seconds.
Note: Instructions to program the brewer are printed on the recipe card, along with the tea or coffee name that is be-
ing programmed.
Procedure to program the coffee name:
Step 1: Remove the funnel.
Step 2:Positiontherecipecardvertically,sothatthetopendofthechipisbeneaththesensingcoil(locatedonthe
under side of the front panel).
Step 3: After a short pause the display will read “Card Contains Recipe For” then will change to “Recipe Name”
(SHOW-QUIT-SAVE). All brewing parameters for that recipe are now transferred from the card to the brewer.
Step 4: To show (view) this information, press and release SHOW. The display will scroll through all of the brew set-
tings for that recipe. This display will then return to “Card Contains Recipe For” then will change to “Recipe Name”
(SHOW-QUIT-SAVE).
Step 5: If all brew settings are correct, press SAVE. The display will read “Recipe Name Setup Complete”. All brew
settings for that name are now stored in the Brewer’s memory.
Step 6: If the brewing information is not correct, or it is desired to exit the setup before the settings are loaded into
the brewer’s memory, press QUIT. The display will read “Recipe Name Not Saved”. The display will then return to the
main screen.
Note: This just saves the recipe in the brewer’s memory. To use for brewing, you must still assign the recipe
to a brew button.
Calibrating the Sprayhead Flow Rate
Step 1:Placeameasuringcontainerwithaminimumcapacityof60ouncesbeneath
the funnel of the brewer. Water can also be dispensed into the server and then into
the measuring container.
Step 2:Pressandholdtherighthiddenswitchtoenterlevel2programming.Continue
to press the right hidden switch until the display reads “Calibrate Flow?”.
Step 3:PressYEStoadvancetothe“SprayHeadCal?”functionscreen.
Step 4:PressYES.Thedisplaywillread“ContainerReady?”Ifthecontainerisunderthe
funnel,pressYES.Thedisplaywillread“CalibrateSpray…PressBrewtoStart”.
Step 5:PressandreleasetheBREWswitch(onthesidetobecalibratedforDualBrewers).
Thedisplaywillread“CalibrateSpray…60SectoFinish”.The60secondtimeronthe
display will count down to zero. When the counter reaches zero, the display will change to OZ,
along with the existing ounces per minute.
Step 6: Measure the amount of water in the container and using the (-) or (+), adjust the amount
on the display to match the amount in the container. Then press DONE.
Step 7:Thedisplayshouldnowread“NewSprayFlow”alongwiththecorrectowrateofthe
sprayhead in ounces per minute. After 5 seconds, the display will return to the “Calibrate Flow?”
screen.
SPRAYHEAD CAL
NO YES
CALIBRATE FLOW?
NO YES
BREW
COUNTERS
CONTAINER READY ?
QUIT YES
CALIBRATE SPRAY
QUIT START
CALIBRATE SPRAY
60 SEC TO FINISH
SPRAYHD OZ XX.X
(-) DONE (+)
NEW SPRAY FLOW
XX.X OZM
CALIBRATE FLOW?
NO YES
5 sec