Bunn U3 Installation And Operating Guide

Page 4
ELECTRICAL REQUIREMENTS - U3, U3A, U333, U38, U3833
CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.
U333 & U3833 requires 3-wire, grounded ser-
vice rated 240 volt ac, 440 volts ac, for U333,three
phase, 60 Hz or 380 volts ac, for U3833, three phase,
50 Hz.
U3 & U38 requires 3-wire, grounded service rated
120/208 or 120/240 volts ac, single phase, 60 Hz.
U3A models require 2-wire, grounded service rated
230 volts ac, single phase, 50 Hz.
U3833 requires 4-wire, grounded service rated 380
volts ac or 440 volts ac, three phase, 50 Hz.
GREEN GREEN
L1, L2, L3, are the 3 phases
V1 = Phase to phase voltage,
between any 2 phases.
V2 = Phase to neutral voltage,
any phase to neutral.
SYSTEM
VOLTAGE V1 V2
208 208 120
240 240 139
380 380 220
440 440 254
P1842
P1844
42769 041910
GREEN GREEN
L2 RED
WHITE
NEUTRAL
L1 BLACK
120V A.C.
208 OR
240V A.C.
RED
BLACK
BLUE
120V A.C.
208V OR 240V
380V OR 440V
208V OR 240V
380V OR 440V
208V OR 240V
380V OR 440V
P1841
P1843
L2
L3
L1
RED
BLACK
L1
L2
L3
N
WHITE
BLUE
(NEUTRAL)
GREEN GREEN
RED
BLACK
L1
L2
230V A.C.
SRUA-CE Models require 2-wire,
grounded service rated 230 volts ac,
single phase, 50 Hz.
P1842
SRU Models require 2-wire,
grounded service rated 208 or 240
volts ac, single phase, 60 Hz.
GREEN GREEN
230V A.C.
RED
BLACK
P1842
L1
L2
GREEN GREEN
RED
BLACK
L1
L2
208 OR
240V A.C.
ELECTRICAL REQUIREMENTS - SRU, SRUA
CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.

Bunn U3 Specifications

General

Brand	Bunn
Model	U3
Category	Coffee Maker
Language	English