Bunn CDS-3 service manual Torque Sensor Circuit Board P1341 Location

Page 48

SERVICE (cont.)

TORQUE SENSOR CIRCUIT BOARD

FIG. 48 TORQUE SENSOR CIRCUIT BOARD P1341 Location:

The torque sensor circuit board is located on the rear of the cooling drum mount just left of center.

Test Procedures:

1.With the ON/OFF switch and Auger switch in the “ON” position and the ICE/OFF/NO-ICE switch in the “ICE” position check the L.E.D. on the control panel.

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

3.If the L.E.D. flashes one time every four seconds the auger is not turning. If the L.E.D. flashes three times every four seconds the torque is less than possible. If the L.E.D. flashes four times every four seconds the torque is greater than possible.

4.If the L.E.D. flashes three times every four seconds, four times every four seconds or one time every four seconds with the auger turning, replace the torque sensor circuit board.

Removal and Replacement:

1.Remove the two #8-32 locking screws securing the auger motor cover to the cooling drum mount.

2.Remove the cover and set aside for reassembly.

3.Remove the #8 locking screw on the lower right side of the auger motor mounting bracket securing the auger motor run capacitor. Set capacitor aside with wires attached.

4.Disconnect the auger motor plug from the connector on the main wiring harness.

5.Remove the three remaining #8 locking screws securing the auger motor mounting bracket to cooling drum mounting bracket.

6.Remove motor with mounting bracket, drip tray, split pin and torsion spring bearings as an assembly and set aside for reassembly.

NOTE: When removing or installing the motor be sure the split pin in the motor shaft is turned to a position that will clear the torque sensor circuit board.

7.Disconnect the plug from the dispenser main wiring harness to the torque sensor circuit board.

8.Remove the #8-32 locking screw and washer secur- ing torque sensor circuit board to the cooling drum mount.

9.Remove torque sensor circuit board and discard.

10.Install new torque sensor circuit board in the slot in the rear of the cooling drum mount and secure with a #8-32 locking screw and washer.

11.Refer to Fig. 49 and reconnect the wires.

12.Reinstall motor with mounting bracket, drip tray, split pin and torsion spring bearings using three #8 locking screws onto the cooling drum bracket.

13.Install the auger motor capacitor on the lower right side of the auger mounting bracket using the remaining #8 locking screw.

14.Connect the auger motor terminal to the terminal on the main wiring harness.

15.Refer to Fig. 49 when reconnecting the wires.

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

FIG. 49 TORQUE SENSOR CIRCUIT

P1328

 

BOARD TERMINALS

 

48

27646 122200

 

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Contents CDS-2 CDS-3 Post Office BOX SPRINGFIELD, IllinoisContents IntroductionUser Notices 12559.0003 00986.000228720.0000 27443.0000 User Notices 27664.0000CDSA-2 Only Site preparation Electrical RequirementsInitial setup Hand Each cooling drum sealAs shown Place Inside of each auger shaftApproximately Operating Controls DAY/NIGHT Timer Setting TimeSetting Night Time Mode Operating ControlsUsing the Dispenser for GRANITA-TYPE Products Using the Dispenser for Cold Liquid ProductsOther Recommendations for Your Dispenser Recommended Daily Cleaning Sugar & Alcohol products Recommended Weekly Cleaning LubricationDisassembly AssemblyLubrication Faucet HandlesAuger assembly & Disassembly Early Augers only Snap it onto the assemblyTroubleshooting Problem Probable Cause RemedyAuger Motor won’t turn Auger ON/OFF Switches Auger Motor Capacitors Refer to Service Auger MotorTime Delay Hopper Display Lights not on Circuit BreakerCompressor not running Power cord Ing procedures. SeeWith adjustment Board L.E.D.s With an extension cord. Refer toProblem Probable Cause Problem Become unusual. Auger MotorsService Component AccessTest Procedures Auger MotorsLocation Auger Motor Capacitor Auger Motor CapacitorsAuger Shaft Assembly Auger Shaft AssemblyService Auger Shaft ASSEMBLYcont Auger ON/OFF Switches Volts ac for 120 volt models Volts ac for 230 volt modelsRemove the wires from the circuit breaker Circuit BreakerDispenser chassis Two wire 230 volt models Connect the black wire from the compressorProperly discharged before proceeding Compressor Start Relay Refer to FIG120V Dispensers Refer to a and reconnect the wires Remove run capacitor and discardCompressor & Components CDS-3 Compressor Thermal P1819 Overload Protector LocationDisconnect 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 Symptoms Cooling Drum AlignmentDAY/NIGHT Switch Dispenser ON/OFF Switch Dispenser ON/OFF SwitchElectronic Control Electronic ControlUse cable ties to secure wires away from fan blades FANFuse and Fuse Holder Fuse HolderICE/OFF/NO ICE Switches ICE/OFF/NO ICE SwitchesLamp Cord Assy Lamp Cord AssyLamp Cord Connector Upper left side of the auger covers Test ProceduresLamp HOLDER/SOCKET Assembly Inside the hopper coversD./ADJUSTMENT Board E.D./ Adjustment BoardSolenoids SolenoidsTemperature Sensor Temperature SensorTorque Sensor Circuit Board Torque Sensor Circuit Board P1341 LocationTransformer Remove transformer and discardService Voltage DividerCoolant Schematic Diagram CDS-2 Coolant Schematic Diagram CDS-3 Prior to S/N CDSCDS 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.

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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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