Bunn CDS-3 service manual D./ADJUSTMENT Board, E.D./ Adjustment Board

Page 45

SERVICE (cont.)

L.E.D./ADJUSTMENT BOARD

 

 

 

 

 

 

 

 

 

 

 

 

 

 

P1343

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

FIG. 43 L.E.D./ ADJUSTMENT BOARD

 

 

 

 

 

 

 

 

Location:

 

 

The L.E.D./adjustment board is located in the dis-

penser drawer attached to the bottom of the control panel.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the connector at the rear of the L.E.D./ adjustment board from the dispenser main wiring harness.

3.With a voltmeter, check the voltage between pin hole #1 (black wire) and pin hole #8 (pink wire) with the ON/OFF switch in the “ON” position. Connect the dispenser to the power source. The indication must be 5 volts dc.

4.Disconnect the dispenser from the power source. If voltage is present as described, replace the L.E.D./ adjustment board.

If voltage is not present as described, refer to the Wiring Diagram and check the dispenser wiring harness.

Removal and Replacement:

1.Pull the dispenser drawer out far enough to expose the four #8 -32 locking screws securing the switch panel to the drawer.

2.Remove the four #8-32 locking screws.

3.Lift switch panel with wires and L.E.D. /adjust- ment

board as an assembly and turn over.

4.Disconnect the connector on the dispenser wiring harness from the pin connector on the rear of the L.E.D./adjustment board.

5.Remove the #4 keps nut from the right rear stud on the control panel and remove the green ground wire.

6.Remove the remaining five #4 keps nuts from the studs on the control panel.

7.Remove the #6 stainless steel washer and the #6 nylon washer from the front stud on the control panel.

8.Remove board and discard.

9.Position a new board on the studs and spacers.

10.Install the #6 nylon washer and the #6 stainless steel washer on the front stud of the control panel. Be sure the nylon washer is installed first.

11.Secure the new board to the control panel using five #4 keps nuts.

12.Connect the green lead from the dispenser main harness to the right rear stud of the control panel and secure with a #4 keps nut.

13.Reconnect the connector from the dispenser main wiring harness to the pin connector at the rear of new L.E.D./adjustment board.

14.Turn board and panel over and position in the dis- penser drawer and secure with four #8-32 locking screws.

45

27646 122200

 

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Contents Post Office BOX SPRINGFIELD, Illinois CDS-2 CDS-3Introduction ContentsUser Notices 12559.0003 00986.000228720.0000 27443.0000 User Notices 27664.0000CDSA-2 Only Electrical Requirements Site preparationHand Each cooling drum seal Initial setupAs shown Place Inside of each auger shaftApproximately Operating Controls Setting Time DAY/NIGHT TimerSetting Night Time Mode Operating ControlsUsing the Dispenser for Cold Liquid Products Using the Dispenser for GRANITA-TYPE ProductsOther Recommendations for Your Dispenser Recommended Daily Cleaning Sugar & Alcohol products Lubrication Recommended Weekly CleaningAssembly DisassemblyLubrication Faucet HandlesSnap it onto the assembly Auger assembly & Disassembly Early Augers onlyProblem Probable Cause Remedy TroubleshootingAuger Motor Capacitors Refer to Service Auger Motor Auger Motor won’t turn Auger ON/OFF SwitchesTime Delay Hopper Display Lights not on Circuit BreakerIng procedures. See Compressor not running Power cordWith adjustment Board L.E.D.s With an extension cord. Refer toProblem Probable Cause Become unusual. Auger Motors ProblemComponent Access ServiceTest Procedures Auger MotorsLocation Auger Motor Capacitors Auger Motor CapacitorAuger Shaft Assembly Auger Shaft AssemblyService Auger Shaft ASSEMBLYcont Volts ac for 120 volt models Volts ac for 230 volt models Auger ON/OFF SwitchesCircuit Breaker Remove the wires from the circuit breakerConnect the black wire from the compressor Dispenser chassis Two wire 230 volt modelsProperly discharged before proceeding Compressor Start Relay Refer to FIG120V Dispensers Remove run capacitor and discard Refer to a and reconnect the wiresCompressor Thermal P1819 Overload Protector Location Compressor & Components CDS-3Disconnect the fan leads from the main wiring harness Refer to a and reconnect the wires to the compressorRED from Relay T2 WHI from Relay T4 BLK from Relay T-5 Compressor Relay Terminals Contactor Electronic Control Cooling Drum Alignment SymptomsDAY/NIGHT Switch Dispenser ON/OFF Switch Dispenser ON/OFF SwitchElectronic Control Electronic ControlFAN Use cable ties to secure wires away from fan bladesFuse Holder Fuse and Fuse HolderICE/OFF/NO ICE Switches ICE/OFF/NO ICE SwitchesLamp Cord Assy Lamp Cord AssyUpper left side of the auger covers Test Procedures Lamp Cord ConnectorInside the hopper covers Lamp HOLDER/SOCKET AssemblyE.D./ Adjustment Board D./ADJUSTMENT BoardSolenoids SolenoidsTemperature Sensor Temperature SensorTorque Sensor Circuit Board P1341 Location Torque Sensor Circuit BoardRemove transformer and discard TransformerVoltage Divider ServiceCoolant Schematic Diagram CDS-2 Prior to S/N CDS Coolant Schematic Diagram CDS-3CDS 0019500 Up 27646 27646 Schematic Wiring Diagram for CDS-2 PAF Schematic Wiring Diagram for CDSA-2 PAF 27646 27646 27646
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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.
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