Bunn ITB Owner's Manual
6
ELECTRICAL HOOK-UP (All Models)
CAUTION
– Improper electrical installation will damage electronic components. Damage caused by incor-
rect electrical connections is not covered by warranty.
1. An electrician must provide electrical service.
2. Determine the available on-site electrical service.
3. (Steps 3 & 9 apply to DV models only) Select the desired unit voltage based on the available on-site elec-
trical service.
4. Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.
5. Remove the front panel to gain access to the terminal block.
6. Feed the power cord through the strain relief and connect it to the terminal block.
7. Connect the power cord to the terminal block as shown.
8. Before proceeding, verify the voltage at the field wiring terminal block.
9. Set voltage switch to the appropriate position and replace the access panel.
10. If plumbing is to be hooked up later be sure the brewer is disconnected from the power source. If plumb-
ing has been hooked up, the brewer is ready for Initial Set-Up.
ELECTRICAL REQUIREMENTS ITCB-DV HV & TWIN
DUAL VOLT
TOGGLE SWITCH
WARNING - The brewer must be disconnected from the power source until specified.
WARNING - The power cord must be UL Listed, Flexible Cord Type SO, SJO, SJTO, HSJO or SJOW, Rated 90° C,
and the attachment plug cap must be UL Listed, in order to avoid a hazard. The Power Supply Cord must be at
least 3 feet long and maximum 6 feet long (measured from Strain Relief to end of the Attachment Plug Cap).
ITCB HV TWIN - requires 3-wire, grounded service rated 120/208-240 volts AC, 30 amp, single phase,
60Hz.
ITCB-DV HV - 120V models require 2-wire, grounded service rated 120 volts AC, 15 amp, single phase,
60Hz. or 3-wire, grounded service rated 120/208-240 volts AC, 20 amp, single phase, 60Hz.
Refer to Data Plate on the Brewer, and local/national electrical codes to determine circuit
requirements.
N
L1
G
L2 RED
L2 RED
POWER CORD
WHITE
GREEN
NEUTRAL
L1 BLACK
WHITE
NEUTRAL
L2
L1 BLACK
WHITE
NEUTRAL
L1 BLACK
N
L1
G
POWER CORD
GREEN
WHITE
NEUTRAL
L1 BLACK
L2 RED
L2 RED
L2
L1 BLACK
L1
G
POWER CORD
GREEN
L1 BLACK
120/208-240V 3 WIRE + GROUND
120V 2 WIRE + GROUND
240V 2 WIRE + GROUND
ITCB-DV HV
L2 RED
NEUTRAL BLUE
N
L1 BLACK
L1
G
POWER CORD
GREEN/YELLOW
L1 BROWN
230V 2 WIRE + GROUND
ITCB-DV HV & TWIN
ITCB-DV HV ONLY
Terminal
Block
ITCB-DV HV TWIN
36748.3 113010
“Optional Field Wiring ratings are located on the machine near the dataplate.”