Bunn SRUA service manual Service, Component Access

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SERVICE

This section provides procedures for testing and replacing various major components used in this brewer should service become necessary. Refer to Troubleshooting for assistance in determining the cause of any problem.

WARNING - Inspection, testing, and repair of electri- cal equipment should be performed only by qualified service personnel. The brewer should be unplugged when servicing, except when electrical tests are re- quired and the test procedure specifically states to plug in the brewer.

COMPONENT ACCESS

WARNING - Disconnect the brewer from the power source before the removal of any panel or the replace- ment of any component.

The control thermostat, limit thermostat, pump, solenoid valve, liquid level probe, swing spout switch and tank heater are accessible by removal of the swing spout, side cupola covers and the cupola.

Disconnect the swing spout nut from the swing spout base fitting. Remove swing spout.

Remove the four #8-32 screws, two on each side, securing the side covers to the cupola.

Slip cupola off of the component bracket.

The on/off switch, selector switch, start switch, timer, contactor and liquid level control board are accessible by removal of the front access panel.

Remove the four #8-32 screws securing the front access panel to the base.

The fuse and fuse holder are accessible by removal of the rear utility cover.

Remove the six #8-32 screws securing the rear utility cover to the housing.

Contents

 

Contactor

14

Control Thermostat

15

Fuse and Fuse Holder

16

Limit Thermostat

17

Liquid Level Board and Level Probe

18

ON/OFF Switch

20

Pump

21

Selector Switch (Half Batch)

22

Solenoid

23

Start Switch (Brew)

24

Swing Arm Switch

25

Tank Heater

26

Thermal Fuse

27

Timer

28

Digital Timer

29

Wiring Diagram

31

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WARN

 

 

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COMPNEL OCE

 

 

 

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FIG. 1 COMPONENT ACCESS

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10067.3 070102

 

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Contents Post Office BOX SPRINGFIELD, Illinois Bunn SruaIntroduction BUNN-O-MATIC Commercial Product WarrantyUser Notices Electrical Requirements Electrical Installation InstructionsPlumbing Requirements Plumbing Hook-up Initial SetupAdjusting Brew Volumes Coffee Brewing CleaningFilter Holder Problem Probable Cause TroubleshootingRemedy Brew cycle will not start Tank not filling ProblemDirection of flow arrow must be pointing towards brewer Problem Probable Cause Remedy Pump tubing Refer to Service Solenoid Valve for testing procedures. SeeFunnel overflows Filters StructedCoffee reservoir overflows Brewer is making unusal noises Remove and clean lime off the tank heater. SeeComponent Access ServiceLocation ContactorBLK Thermal Block L1 Fuse to Tank Heater RED Thermal Fuse ThermostatControl Thermostat Disconnect the red wires from the control thermo- statFuse and Fuse Holder Fuse and Fuse HolderLimit Thermostat Limit ThermostatLiquid Level Board Liquid Level Board and Level ProbeService Liquid Level Board and Level Probe Disconnect all wires on the ON/OFF switch ON/OFF SwitchRED to Start Switch, Brew Pump Assembly Pump AssemblySelector Switch Half Batch Selector Switch Half Batch OptionSolenoid SolenoidLocation Start Switch BrewSwing ARM Switch Swing ARM SwitchTank Heater Tank HeaterThermal Fuses Thermal FusesTimer If voltage is as described, proceed to #7 Service Digital Brew Timer Late ModelsDigital Timer Terminals 10491.0004A 07/02 2002 BUNN-O-MATIC Corporation

SRUA specifications

The Bunn SRUA is an innovative coffee brewer that is designed to meet the needs of commercial environments, like restaurants, cafes, and office breakrooms. This machine is known for its efficiency, reliability, and exceptional brewing quality. The SRUA model is particularly popular for its ability to produce consistently great-tasting coffee with minimal effort.

One of the standout features of the Bunn SRUA is its unique brewing technology. The machine is equipped with a patented brewing system that allows for precise control over temperature and brewing time. This ensures that the coffee is brewed at the optimal temperature, extracting the maximum flavor from the coffee grounds. The SRUA also features a hot water faucet that provides instant hot water for tea or other beverages, enhancing versatility in beverage options.

The Bunn SRUA has a large capacity, able to brew multiple pots of coffee quickly. It can produce up to 3.8 gallons of coffee per hour, making it ideal for high-demand settings. The brewer has a built-in water tank that maintains the right temperature at all times, reducing wait times and allowing for quick service during busy hours.

In terms of design, the SRUA is built to withstand the rigors of daily use in commercial settings. It features high-quality stainless steel construction, ensuring durability and longevity. Additionally, the machine is relatively compact, allowing it to fit on countertops with limited space while still providing high-volume output. The user-friendly interface and clear indicator lights make operating the machine straightforward, even for staff with minimal training.

Moreover, the Bunn SRUA emphasizes easy maintenance. The machine comes with a removable brew basket and a stainless steel funnel that simplify cleaning and prevent residue buildup. Regular maintenance is streamlined, helping to keep the brewer functioning at peak performance.

Security features are also integrated into the Bunn SRUA, with options for water line connection and manual fill capabilities, allowing users to choose the most convenient setup for their needs.

In summary, the Bunn SRUA is a powerful, efficient, and durable commercial coffee brewing solution that delivers exceptional performance and versatility, making it an excellent choice for businesses that prioritize quality and service.
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