Bunn SRUA service manual Pump Assembly

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SERVICE (cont.)

PUMP ASSEMBLY

FIG.14 PUMP ASSEMBLY

P2180

 

Location:

The pump is located on the right of the upper component bracket.

Test Procedures:

1.Disconnect the brewer from the power source.

2.Disconnect the black wire from the black lead on the pump and the red wire from the black lead on the pump.

3.With a voltmeter, check the voltage across the black wire and the red wire with the swing arm switch plunger depressed. Connect the brewer to the power source. The indication must be 230 volts ac.

4.Disconnect the brewer from the power source.

If voltage is present as described, reconnect the wires to the pump. Install swing spout and position over the reservoir. Place the ON/OFF in the "ON" (upper) posi- tion and push the start switch and release. If pump does not run, replace the pump.

If voltage is not present as described, refer to the wiring diagrams and check the brewer wiring harness.

Removal and Replacement (Refer to Fig. 15):

1.Disconnect the wires from the pump assembly.

2.Loosen the #8-32 screw (2) securing the clamp (3) on the fill tube (1) and slide the clamp (3) up the fill tube (1).

3.Disengage the fill tube (1) from the pump assem- bly (4).

4.Remove the four #8-32 screws (6) securing the pump assembly (4) to the component bracket (7).

5.Remove pump assembly (4).

6.Remove pump gasket (5) and inspect, replace if necessary.

7.Position gasket (5) on component bracket (7).

8.Install new pump assembly (4) on component bracket (7) and secure with four #8-32 screws (6).

9.Install fill tube (1) on pump assembly (4).

10.Slide clamp (3) down into position on the fill tube

(1) and tighten screw (2).

11.Refer to Fig. 15 and reconnect the wires.

RED from Brew Timer

BLK from Swing Arm

1Switch

2

 

3

6

 

4

 

5

 

 

7

FIG.15 PUMP INSTALLATION

P2177

 

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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 Installation Instructions Electrical RequirementsPlumbing Requirements Plumbing Hook-up Initial SetupAdjusting Brew Volumes Cleaning Coffee BrewingFilter Holder Troubleshooting Problem Probable CauseRemedy Problem Brew cycle will not start Tank not fillingDirection 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 ON/OFF Switch Disconnect all wires on the 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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