SERVICE (cont.)

FAN

 

FIG. 30 FAN

P1342

 

Location:

The fan is located inside the dispenser chassis just in front of the condenser.

Test Procedures:

1.Disconnect the dispenser from the power source.

2.Disconnect the yellow and white/black wires from the main harness to the fan leads.

3.With a voltmeter, check the voltage across the yellow and the white/black wires 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, replace the fan.

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

Removal and Replacement (Refer to Fig. 31)

NOTE: Leave the hopper in place. This keeps it in align- ment while the condenser shroud is removed.

1.Disconnect the fan leads from the wiring har- ness.

2.Remove the four #6 crimptite screws securing the condenser shroud and fan assy (1) to the condenser and the two #8-32 locking screws securing the condenser shroud and fan assy (1) to the chassis base.

3.Remove the condenser shroud and fan assy from the right side of the dispenser.

4.Remove the three #6 thread cutting screws securing the fan assy to condenser shroud (7). Set condenser shroud and screws aside for reassembly.

5.Remove the three #8-32 thread forming screws securing motor (5) to condenser fan shroud/mount

(6). Set shroud and screws aside for reassembly. 39

 

 

 

 

1

2

3

4

 

 

 

 

5

6

 

7

 

 

 

P1345

FIG. 31 FAN COMPONENTS

 

6.Remove speed nut (2) from the motor shaft.

7.Remove fan (3).

8.Remove silencer (4).

1. Condenser Shroud and Fan Assy

2.

Speed Nut

3.

Fan Blade

4.

Silencer

5.

Motor

6.

Shroud/Mount

7.

Condenser Shroud

9.Install silencer (4) on new motor assy.

10.Install fan (3) on new motor assy.

11.Install speed nut (2) on new motor assy.

12.Using three #8-32 thread forming screws secure new motor assy to shroud/mount (6).

13.Using three #6-32 thread cutting screw new motor and shroud/mount to the condenser shroud (7).

14.Using two #8-32 locking screws secure condenser shroud and fan assy (1) to the chassis base.

15.Using four #8-32 crimptite screws secure the con- denser shroud and fan assy (1) to the condenser.

16.Refer to Fig. 32 and reconnect the leads on the new motor to the dispenser wiring harness.

17.Use cable ties to secure wires away from fan blades.

BLK to Main Harness WHI/BLK

BLK to Main Harness YEL

 

P1326

FIG. 32 FAN MOTOR TERMINALS

 

27646 122200

 

 

Page 38 Page 40
Page 39
Image 39
Bunn CDS-3 service manual Fan, Use cable ties to secure wires away from fan blades
Page 38 Page 40

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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