Bunn CDS-3 service manual ICE/OFF/NO ICE Switches

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SERVICE (cont.)

ICE/OFF/NO ICE SWITCHES

FIG. 35 ICE/OFF/NO ICE SWITCHES

P1343

 

Location:

The ICE/OFF/NO-ICE switches are located inside the dispenser drawer.

Test Procedures:

1.Disconnect the dispenser from the power source.

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

3.With a voltmeter, check the voltage across the black wire and the white/black wire and all other switches in the down position (“ON”) to the center of the control panel. 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, 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/yellow wire and the white/violet wire from the right ICE/OFF/NO-ICE switch, the white/orange wire and the red/black from the left ICE/OFF/NO-ICE switch, or the brown/black wire and blue wire from the center ICE/OFF/NO-ICE switch.

6.With the switch to be tested pressed down on the right side, check for continuity between the center terminal and the left terminal. With the switch pressed down to the left, check for continuity be- tween the center terminal and the right terminal. Continuity must not be present when neither side of the switch is pressed down.

If continuity is present as described, the ICE/OFF/NO- ICE switch is operating properly.

If continuity is not present as described, replace the ICE/OFF/NO-ICE 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./adjustment board as an assembly.

4.Turn switch panel over and remove the wires from the ICE/OFF/NO-ICE switch that is to be replaced.

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 until the clips snap into position.

7.Reconnect the wires to the switch. Refer to Fig. 36 when reconnecting wires.

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

P1334

FIG. 36 ICE/OFF/NO ICE SWITCH TERMINALS

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27646 122200

 

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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 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 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 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-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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