Bunn CDS-3 service manual Temperature Sensor

Page 47

SERVICE (cont.)

TEMPERATURE SENSOR

FIG. 46 TEMPERATURE SENSOR

P1341

 

Location:

The temperature sensors are located inside the top rear of the cooling drum under the auger motor covers.

Test Procedures:

1.Position the DAY/NIGHT switch in the “NIGHT” position, check the L.E.D. on the control panel for flashes.

2.The L.E.D. for the temperature sensor is located between the appropriate auger switch and the ice switch.

3.If the temperature in the cooling drum is less than 20° F (-6˚C) or more than 120°F (73˚C) for

10 seconds the L.E.D. will flash twice every four seconds.

4.If flashing is present as described, replace the temperature sensor.

NOTE: Auger motor cover must be in place to give a correct reading.

Removal and Replacement:

1.Remove the two #8-32 securing the auger motor cover to cooling drum mount and remove the cover. Set aside for reassembly.

2.Disconnect the plug on the temperature sensor leads from the connector on the dispenser main wiring harness.

3.Pull the temperature sensor from the tube at the top rear of the cooling drum and discard.

4.Push new temperature sensor into the tube at the top rear of the cooling drum as far as it will go.

5.Refer to Fig. 47 and reconnect the wires.

6.Position auger motor cover on cooling drum mount and secure with two #8-32 locking screws.

FIG. 47 TEMPERATURE SENSOR

P1325

 

47

27646 122200

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Image 47
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Contents Post Office BOX SPRINGFIELD, Illinois CDS-2 CDS-3Introduction Contents28720.0000 27443.0000 User Notices12559.0003 00986.0002 CDSA-2 Only User Notices27664.0000 Electrical Requirements Site preparationPlace Inside of each auger shaft Initial setupHand Each cooling drum seal As shownApproximately Operating Controls Operating Controls DAY/NIGHT TimerSetting Time Setting Night Time ModeUsing 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 CleaningFaucet Handles DisassemblyAssembly LubricationSnap it onto the assembly Auger assembly & Disassembly Early Augers onlyProblem Probable Cause Remedy TroubleshootingHopper Display Lights not on Circuit Breaker Auger Motor won’t turn Auger ON/OFF SwitchesAuger Motor Capacitors Refer to Service Auger Motor Time DelayWith an extension cord. Refer to Compressor not running Power cordIng procedures. See With adjustment Board L.E.D.sProblem Probable Cause Become unusual. Auger Motors ProblemComponent Access ServiceLocation Test ProceduresAuger Motors 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 breakerCompressor Start Relay Refer to FIG Dispenser chassis Two wire 230 volt modelsConnect the black wire from the compressor Properly discharged before proceeding120V Dispensers Remove run capacitor and discard Refer to a and reconnect the wiresCompressor Thermal P1819 Overload Protector Location Compressor & Components CDS-3RED from Relay T2 WHI from Relay T4 BLK from Relay T-5 Disconnect the fan leads from the main wiring harnessRefer to a and reconnect the wires to the compressor 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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