Bunn ITCB-DV Installation guide

BUNN®TECHNICAL TRAINING
ITCB High Volume

Index
Unit 1: Overview
ITCB-DV
Overview .......................................................................................................................4
ITCB-DV HV
Overview .......................................................................................................................5
ITCB-DV HV
Overview .......................................................................................................................5
Unit 2: Machine Composition
Exterior Overview ............................................................................................................... 7
Product Outlets and Removable Parts ......................................................................7
User Interface ...............................................................................................................7
Interior Overview ................................................................................................................9
Internal Components Review...................................................................................... 10
Machine Function and Operations.................................................................................... 11
Main Control Board...................................................................................................... 11
Filling System...............................................................................................................12
Heating System ............................................................................................................ 13
Dilution System ............................................................................................................ 14
Dispensing System ...................................................................................................... 14
Unit 3: Programming
Programming Lockout ....................................................................................................... 17
Level 1 Programming ......................................................................................................... 17
Level 2 Programming ......................................................................................................... 17
Calibrating the Sprayhead Flow Rate ............................................................................... 19
Calibrating the Bypass Flow Rate..................................................................................... 20
Calibrating the Dilution Flow Rate .................................................................................... 20
Master Tank Temperature .................................................................................................. 21
Calibrating the Temperature Probe...................................................................................21
Unit 4: Troubleshooting
Service Tools ......................................................................................................................23
Test Outputs ................................................................................................................. 23
Test Switches ............................................................................................................... 24
Test Frequency............................................................................................................. 24
Service Fault Messages ..................................................................................................... 24
Triac Map .............................................................................................................................25
© 2011 Bunn-O-Matic Corporation. All Rights Reserved
Rev. A

Unit Objectives
Unit 1 OVERViEW
Given an ITCB-DV, ITCB-DV HV, and an ITCB Twin HV, the learner will be able to perform the following tasks
successfully:
The learner will be able to discuss key features of the ITCB-DV.
The learner will be able to discuss key features of the ITCB-DV HV.
The learner will be able to discuss key features of the ITCB Twin HV.
The learner will be able discuss similarities and differences between the three ITCB models.

ITCB-DV HV Training
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BUNN ITCB (Infusion Series® Tea and Coee Brewer)
BUNN innovation makes it possible to brew iced tea, hot tea and hot or iced coffee from one model, the ITCB. Fea-
turing BrewWISE®with pre-infusion and pulse brew technology, the Infusion Tea and Coffee Brewer gives the opera-
tor complete control over the brewing process.
Recently, BUNN has modied the ITCB to accommodate high volume brewing. The ITCB-DV HV was designed to
achieve a larger brew volume than the ITCB-DV. In addition to the high volume brewing system, components and
features were affected during the transformation.
First, we will take a look at the key features of an ITCB-DV. Most of the features can be found on all ITCB models
and others will be specic to that machine.
Key Features
Model: ITCB-DV & ITCB-DV with Flip Tray
Note: Features listed below with an asterisk* only apply the ITCB-DV model. The remaining features relate to all
ITCB models.
• *Models available with integrated ip tray that converts to three positions: thermal carafe, airpot and tea dispenser.
• Large tank provides back-to-back brewing capacity and allows 3 or 5 gallon (11.4 to 18.9 litres) tea batches.
• Dual voltage adaptable. Can operate at 120V/15 amp or 208-240V/20 amp.
• Programmable batch switches allow full and half batches of iced tea.
• Brews into all BUNN iced tea dispensers (except T DS-5),1.9 to 3.8 litre airpots, thermal carafes and can
accommodate BUNN ThermoFresh® Servers.
• BrewWISE® intelligence with pre-infusion and pulse brew for maximum avor extraction. Digital temperature
control and cold brew lockout.
• Easy Pulse interface allows automatic programming of pulse routine.
• Energy-saver mode reduces tank temperature during idle periods.
• Display advertising messages and machine status.
• Brew counter keeps track of how many batches brewed.
• Most models include graphic overlays for customizing user interface.
• English and Spanish alphanumeric display.
Plumbing: 20-90 psi (138-621 kPa). Model supplied with a 1⁄4” male are tting.
*Requires minimum 1GPM water ow.
Dimensions (Tall): 34.37” H x 11.53” W x 23.78” D
(87.3cm H x 29.3cm W x 60.4cm D)
*Dimensions (Short): 31.12” H x 11.53” W x 23.78” D
(79.1cm H x 29.3m W x 60.4cm D)

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Infusion Tea and Coffee High Volume Brewer
Model: ITCB-DV HV
Note: Bullet points will only list additional features of the machine when compared
to the preceding model, which is the ITCB-DV.
High Volume Transformation Includes:
• Large 3-gallon (11.36 litre) tank provides back-to-back brewing capacity.
• Brews 5.1 to 11.9 gallons (19.3 to 45 litres) of perfect coffee per hour and 26.7
gallons (10.2 litres) of iced tea per hour.
• Includes both tea and coffee Smart Funnel®.
• Includes hot water bypass.
• Removable front panel.
• Optional side mount for hot water faucet.
• Rail locator for TF Server and TDO-N Dispenser. Invert rails to accommodate
regular tea dispensers.
• Tall trunk only.
Plumbing: 20-90 psi (138-621 kPa). Supplied with 3⁄8” male are tting. Requires
minimum of 1.5 gpm water ow.
Dimensions: 34.4”H x 10.1”W x 23.8”D
(87.4cm H x 25.7cm W x 60.5cm D)
Infusion Tea and Coffee Twin High Volume Brewer
Model: ITCB Twin HV
Note: Bullet points below will only list additional features of the machine
when compared to the preceding model, which is the ITCB-DV HV.
ITCB Twin HV Transformation Includes:
• Large 5.5 gallon tank compared to 3 gallon tank (ITCB).
• Brews 18.9 gallons (71.5 litres) per hour compared to 11.9 gallons per
hour.
• Additional hood fan and thermistor.
• Different CBA part number.
• Dimensions- Reference Spec Sheet.
• Additional relays in hood (d/c).
• Additional inlet valve for tank lling.
• No Dual Volt option. Requires 3-wires plus ground service rated
120/240V, single phase 60Hz..
• 20-90 psi (138-621 kPa). Supplied with 3⁄8” male are tting. Requires
minimum of 2.0 gpm water ow compared to 1.5 gpm.

Unit Objectives
Unit 2 MachinE cOMpOsitiOn
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 an operating machine the learner will be able to give a general explanation of how the BUNN
ITCB HV brewer operates.
The learner will be able to identify the functions of the main control board .
The learner will be able to identify the components and functions of the lling system.
The learner will be able to identify the components and functions of the heating system.
The learner will be able to identify the components and functions of the dispensing system.
The learner will be able to identify the components and functions of the dilution system.

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Machine Composition
Exterior Overview
Product Outlets and Removable Parts
A. User Interface
B. Display
C. Hot Water Outlet
D. High Lime Sprayhead
E. Dilution Nozzle
F. Funnel Sensing Coil
G. Data Plate
H. Rail Locator
I. Top Cover Vents
J. Optional Hot Water Outlet
K. Bypass Outlet
L. Ventilation Hole
On/off switch (on the right panel)
User Interface
The user interface is a membrane switch adhered to the front of the brewer. The membrane is connected to the
control board by a ribbon cable. The user interface allows the user to select the product, batch size and to begin
the brew cycle.
The machine’s display is mounted to the control board. The display is visible on the front of the machine and
provides information to the user and to the technician.
I
HALF
FULL
BREW
A
BREW
B
BREW
C
®
ENABLE
ON / OFF
BREW
A
B
C D E
READY TO BREW
WATER TEMP: 200°
F
G
A
B
C
E
G
H
J
D
F
K
L

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A. Programming (right)
Pressing and holding this pad allows entry into the programming menus. Pressing and releasing the pad steps
through each function screen while in the programming mode.
B. Programming (left)
This hidden pad can be used to scroll backwards through the function list while in programming mode.
C. Brew A Switch
When the ON/OFF is ON and the brewer is on the main screen (not in programming mode), momentarily pressing
and releasing this pad will begin a brew cycle for regular coffee. The Brew A switch is also used to select options that
appear on the display during programming such as “NO/( - )”.
D. Brew B Switch
When the ON/OFF is ON and the brewer is on the main screen (not in programming mode), momentarily pressing
and releasing this pad will begin a brew cycle for Decaf coffee. The Brew B switch is also used to select options that
appear on the display during programming such as “DONE”.
E. Brew C Switch
When the ON/OFF is ON and the brewer is on the main screen (not in programming mode), momentarily pressing
and releasing this pad will begin a brew cycle for Tea. The Brew C switch is also used to select options that appear
on the display during programming such as “YES/( + )”.
F. On/Off Switch
Pressing the “ON/OFF” pad will alternately turn the brewer on and off. Pressing this pad during the brew cycle will
interrupt the brew cycle, stopping the ow of water. Pressing this pad during programming of the brewer will exit the
setup and return to the main screen.
G. Full Batch Selector Switch
Pressing the switch corresponding to the Full batch selects the maximum amount of product to be brewed. Press-
ing a different batch switch 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.

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Rail Locators
The rail locators are factory set to accommodate Thermal Fresh servers and TDO-N dispensers. The rails can be
inverted to t with regular tea dispensers by detaching the screws on the bottom of the brewer that secure the rails.
ITCB HV Interior Overview
Internal Components
TF Servers and TDO-N Dispensers Regular Tea Dispensers
*Thermistor
CBA
Solenoid for Bypass System
Solenoid
(Dispense Valve)
120 VAC Fan Thermistor
*Transformer
(Relocated)
Dual Inlet
Solenoid
Dillution Hose

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ITCB Twin HV Interior Overview
Internal Components
Thermistor
Realy
Solenoid for Bypass System
Solenoid
(Dispense Valve)
120 VAC Fan
Transformer
(Relocated)
Dual Dilution
Solenoid
Dillution Hose
Inlet Solenoid