Bunn U3/SRU Electrical Requirements U3, U3A, U333, U38, U3833, Electrical Requirements U3A UK

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ELECTRICAL REQUIREMENTS - U3, U3A, U333, U38, U3833

CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.

L2 RED

 

WHITE

120V A.C.

208 OR

 

NEUTRAL

240V A.C.

120V A.C.

L1 BLACK

 

P1841

RED

L2

BLUE

L3

BLACK

L1

GREEN

208V OR 240V

380V OR 440V

208V OR 240V 380V OR 440V

208V OR 240V

380V OR 440V

GREEN

P1843

U3 & U38 requires 3-wire, grounded service rated 120/208 or 120/240 volts ac, U3/SRU-30 amp,U38-40 amp, single phase, 60 Hz.

U333 & U3833 requires 3-wire, grounded service rated 240 volt ac, 35 amp or 440 volts ac, 30 amp for U333,three phase, 60 Hz or 380 volts ac, 30 amp for U3833, three phase, 50 Hz.

BLACK L1

RED

230V A.C.

L2

 

GREEN

GREEN

P1842

WHITE

(NEUTRAL) N

RED L2 BLUE L3 BLACK L1

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.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

GREEN

 

 

 

 

 

 

 

 

 

SYSTEM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VOLTAGE

V1

V2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1844

208

208

120

 

 

 

 

240

240

139

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

380

380

220

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

440

440

254

 

U3A models require 2-wire, grounded service rated 230 volts ac, 30 amp, single phase, 50 Hz.

U3833 requires 4-wire, grounded service rated 380 volts ac or 440 volts ac, 30 amp, three phase, 50 Hz.

ELECTRICAL REQUIREMENTS - U3A (UK)

CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.

U3A Requires 2-wire, gorunded service rated 230 volts ac, 32 Amps, single phase, 50 Hz.

FACTORY WIRED

U3A Requires 4-wire, 3-phase grounded service rated 400 volts ac, 15 amp, 3 phase, 50 Hz.

FIELD WIRING

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Contents U3/SRU BUNN-O-MATIC Commercial Product Warranty Introduction ContentsUser Notices Electrical Requirements U3, U3A, U333, U38, U3833 Electrical Requirements U3A UKElectrical Requirements SRU, Srua CE RequirementsInitial Setup U3 Plumbing RequirementsInitial Setup SRU Adjusting Brew Volumes Coffee BrewingCleaning Filter Holder

U3/SRU specifications

The Bunn U3/SRU coffee maker is a well-regarded brewing machine known for its efficiency and quality in commercial settings. Designed primarily for use in cafés, restaurants, and other high-demand environments, the U3/SRU ensures that coffee lovers are treated to fresh, flavorful coffee consistently.

One of the most notable features of the Bunn U3/SRU is its capacity to brew large quantities of coffee simultaneously. It can produce three gallons of coffee per hour, making it ideal for establishments that require high throughput without sacrificing quality. This machine is equipped with an innovative brewing system that utilizes multiple brewing heads, allowing operators to serve different coffee blends or styles all in one brewbasket.

The U3/SRU comes with an advanced onboard water heating system that ensures optimal brew temperatures. This feature contributes to consistent extraction, which is crucial for achieving the best flavor profiles from coffee beans. The machine also employs an automatic refill capability, allowing it to maintain the ideal water level for brewing without manual intervention.

In addition to its efficiency, the Bunn U3/SRU incorporates user-friendly controls, making it simple to operate for both experienced baristas and novice staff. The interface is designed to be intuitive, with clear indicators for the brewing process. Furthermore, quick-release components facilitate easy cleaning and maintenance, crucial for busy environments where downtime must be minimized.

Durability is another hallmark of the Bunn U3/SRU. Constructed with high-quality materials, this coffee maker is built to withstand the rigors of commercial use. Its design features robust stainless steel components that resist wear and tear, ensuring a long service life.

Moreover, the Bunn U3/SRU allows for customization in brewing strength and volume, catering to diverse customer preferences. This versatility, combined with its capacity to brew multiple pots at once, makes it a reliable choice for establishments that want to offer a wide variety of coffee options.

In conclusion, the Bunn U3/SRU is a standout coffee brewing machine designed for high-volume commercial use. With its efficient brewing capabilities, user-friendly operation, and durable construction, it meets the needs of coffee shops and restaurants, delivering a consistent cup of coffee that keeps customers coming back for more.