Bunn CDS-3 service manual DAY/NIGHT Switch

Page 36

SERVICE (cont.)

DAY/NIGHT SWITCH

FIG. 25 DAY/NIGHT SWITCH

P1343

 

Location:

The DAY/NIGHT switch is located inside the dis- penser drawer on the right front of the control panel.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the white/green wire from the switch and the white/black wire from contactor located on the outside bottom of the component bracket .

3.With a voltmeter, check the voltage across the white/green and the white/black and the ”ON/OFF“ switch in the “ON” position. Connect the dispenser to the power source. The indication must be:

a)120 volts ac for 120 volt models.

b)230 volts ac for 230 volt models.

4.Disconnect the dispenser from the power source. If voltage is present as described, reconnect the white/ black wire to the contactor and proceed to #5.

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

5.Remove the white/red wire from the transformer.

6.With the DAY/NIGHT switch in the “DAY” position check for continuity across the terminals. Continu- ity must not be present when the switch is in the “NIGHT” position.

If continuity is present as described, the day/night switch is operating properly.

If continuity is not present as described, replace the day/night switch.

Removal and Replacement:

1.Pull the dispenser drawer out until the drawer hits the drawer stop. Using a screwdriver gently pry up on the drawer stop and remove the drawer from the dispenser.

2.Remove the four #8-32 locking screws securing the switch panel to the drawer.

3.Lift switch panel with wires and L.E.D. board as an assembly.

4.Turn switch panel over and remove the wires from the DAY/NIGHT switch.

5.Compress the clips on the back of the control panel and gently push switch through the opening.

6.Push the new switch into the opening, with the “o” on the switch to the outside, until the clips snap into position.

7.Reconnect the wires to the switch. Refer to Fig. 26 when reconnecting wires.

8.Position the switch panel inside the drawer and secure with four #8-32 locking screws.

9.Reinstall drawer.

FIG. 26 DAY/NIGHT SWITCH TERMINALS P1335

36

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.

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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