SERVICE (cont.)

COMPRESSOR & COMPONENTS (CDS-2) (cont.)

Compressor Start Capacitor:

1.Check for continuity across the terminals on the compressor start capacitor.

If continuity is present as described, the start capacitor is operating properly.

If continuity is not present as described, replace the capacitor.

NOTE: If all the electrical components are operating properly and the compressor does not operate, there is an internal mechanical problem. Replace the compressor.

Removal and Replacement:

Compressor Assy:

NOTE: Before removal of any refrigeration component the refrigerant in the system must be reclaimed by a licensed refrigeration repair person.

1.Disconnect the tubes from the condenser and the accumulator.

2.Disconnect the compressor wiring harness from the dispenser main wiring harness.

3.Remove the four .25-20 keps nuts and washers se- curing the compressor to the chassis. Set nuts and washers aside for reassembly.

4.Remove the four #8-32 locking screws securing the component bracket to the dispenser chassis.

5.Disconnect the wires from the circuit breaker, fuse holder, transformer, electronic control and the con- tactor.

6.Remove component bracket with circuit breaker, fuse holder, transformer, electronic control and contactor as an assembly. Set component bracket and screws aside for reassembly.

7.From the right side of the dispenser lift the compres- sor assembly over the four studs in the chassis and remove compressor.

8.Install new compressor over the four studs in the dispenser chassis with the fill valve to the left side of the dispenser.

9.Secure compressor to the dispenser chassis using four .25-20 keps nuts and washers.

10.Reconnect the wires to the components on the com- ponent bracket and plug the main wiring harness into the electronic control.

NOTE: When reconnecting wires refer to Fig. 10 for circuit breaker, Fig. 34 for fuse holder, Fig. 51 for trans- former and Fig. 22 for contactor.

11.Position the component bracket in the chassis and secure with four #8-32 locking screws.

12.Reconnect tubes from the condenser and the ac- cumulator to the compressor.

13.Evacuate the system.

NOTE: When replacing the compressor it is recom- mended that the dryer also be replaced.

14.Recharge 120V system with 8.4 oz. of Type R22 refrigerant. Design Pressures: High 210 - Low 32 Recharge 230V system with 9.5 oz. of Type 404A refrigerant. Design Pressures: High 215 - Low 40

NOTE: The charging of the system must be done by a licensed refrigeration repair person.

Compressor Start Capacitor: Refer to FIG. 12

WARNING: The compressor start capacitor must be properly discharged before proceeding.

1.Remove terminal cover retainer (6) and terminal cover (5). Set aside for reassembly.

2.Disconnect the two leads from the capacitor.

3.Pry the end of the capacitor mounting bracket off of the boss on the capacitor and remove the capaci- tor.

4.Install new capacitor on the capacitor mounting bracket.

5.Refer to Fig. 13 and reconnect the wires to the ca- pacitor.

6.Reinstall terminal cover (5) and cover retainer (6).

120V DISPENSERS

 

 

230V DISPENSERS

P1340

 

 

FIG. 13 COMPRESSOR START CAPACITOR

 

 

 

 

29

 

TERMINALS

27646 122200

 

 

 

 

 

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Bunn CDS-3 service manual 120V Dispensers
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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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