Bunn CDS-3, CDS-2 service manual Service, Component Access, Contents

Page 12

SERVICE

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

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

COMPONENT ACCESS

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

All components are accessible by opening the door, removal of the door panel, removal of the dispenser rear panel, hopper, hopper support plate and top wrap- around cover. Refer to Fig. 1

P1891

FIG. 1 COMPONENT LOCATIONS

Contents

 

Auger Drive Components

13

Auger Motor

14

Frother and Mixing/Whipper Chamber

15

Whipper Motor

16

Control Board and Level Probes

18

TEST/SERVICE Switch

21

Main Power ON/OFF Switch

22

Door Panel Assembly

 

Lamp Cord Assembly

23

Lamp Cord Connector

24

Lamp Holder/Socket

25

Transformer

26

Potentiometer

27

Hopper Level Indicator

28

Hopper Switch

29

Door Switch

30

Pressure Regulator and Needle Valve

31

Dispense Solenoid

32

Wiring Diagrams

33

12

29793 061599

 

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Contents Post Office BOX SPRINGFIELD, Illinois Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty IntroductionInitial SET-UP User Notices Operating Instructions Adjustments Cleaning Recommended Daily Cleaning and Maintenance TipsRemoving and cleaning the whipper chamber once a day Thorough cleaning of the hopper once a weekFault List Normal operation Powder Auto-Fill ready toDispense Door not closedTroubleshooting Problem Probable CauseTroubleshooting ProblemRemedy CDS product tastes watery or sugaryProblem Probable Cause Remedy Procedures. See Improper adjustment of productInstall a regulator if necessary to Product overflows CDS hopper Control Board and ProbeService Component AccessContents Auger Drive Components Hopper LidRetainer Clip Spacer Dust Seal Hopper BaseDiagrams and check wiring harness Auger Drive MotorFrother and MIXING/WHIPPER Chamber Mixing ChamberWhipper Motor Volts ac for 120 volt models Volts ac for 230 volt CE modelsInstall dispense tip into the bottom of the whipper chamber Whipper MotorControl Board and Level Probe If voltage is present as described, proceed to #5If voltage is present as described, proceed to #9 Test Procedure Low Product Detect Instal the new control board using the four #6-32 keps nuts Remove the control boardTEST/SERVICE Switch Disconnect the wires from the switch terminalsLocation Main Power ON/OFF Switch Main Power ON/OFF SwitchLamp Cord Assembly Refer to when reconnecting the wiresLamp Cord Connector Disconnect the lamp cord from the lamp cord connectorRemove new nut and washer from new lamp cord connector Lamp HOLDER/SOCKET Assembly Close the dispenser doorTransformer TransformerPotentiometer PotentiometerHopper Level Indicator Hopper Level IndicatorHopper Switch Hopper SwitchDoor Switch Door SwitchAdjustments Pressure Regulator and Needle ValveDispense Solenoid Valve Dispense Solenoid Valve LocationWiring Diagrams Schematic Wiring Diagram PAFSchematic Wiring Diagram Pafa
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CDS-2, CDS-3 specifications

The Bunn CDS-3 is a commercial coffee brewer renowned for its reliability, efficiency, and high-quality performance. Designed for busy environments such as cafés, restaurants, and convenience stores, it offers the perfect balance of capacity and functionality, making it ideal for high-demand situations.

One of the standout features of the Bunn CDS-3 is its ability to brew up to 3.8 gallons of coffee per hour. This impressive capacity meets the needs of busy establishments where a constant supply of fresh coffee is crucial. The brewer’s stainless steel construction not only ensures durability but also maintains temperature, thus preserving the coffee’s rich flavor and aroma.

The CDS-3 incorporates Bunn's patented brewing technology, including the "Pour-Over" method. This feature allows for easy operation and contributes to the even extraction of coffee grounds. The machine is equipped with a pre-infusion mode that saturates coffee grounds before brewing, enhancing extraction for a fuller, more complex flavor profile.

Temperature control is another vital characteristic of the Bunn CDS-3. It maintains the water temperature between 195°F to 205°F, the ideal range for optimal coffee brewing. The brewer’s internals are designed for rapid heating, ensuring that the water reaches the desired temperature quickly and consistently, which is essential for high-quality coffee production.

In terms of usability, the Bunn CDS-3 offers an intuitive interface, allowing staff to operate it with minimal training. The front-access design not only simplifies maintenance, but also makes it easy to refill water and perform routine cleaning. Furthermore, the large capacity coffee pots ensure that the brewed coffee can be stored efficiently, minimizing waste.

Equipped with a unique spray head system, the Bunn CDS-3 ensures uniform saturation of the coffee grounds. This feature supports optimal extraction, allowing users to produce a rich and flavorful brew that keeps customers coming back for more.

In summary, the Bunn CDS-3 is a well-engineered, commercial-grade coffee brewer that excels in high-demand environments. Its robust construction, advanced brewing technology, consistent temperature control, and user-friendly design make it a favorite among coffee enthusiasts and professionals alike, affirming its reputation as a reliable and effective solution for coffee brewing needs. Whether for a bustling café or a catering service, the Bunn CDS-3 delivers a consistently great cup of coffee every time.