Bunn RL00006929 service manual Service Relay

Page 22

SERVICE (cont.)

Relay

P1478

FIG. 22 RELAY

Location:

The relay is located under the top cover or top warmer housing, FIG. 22.

Test Procedure:

1.Disconnect the plug terminal from the relay to the main wiring harness. Check the voltage across the pins of the black wire (P3) and white wire (P2) on the main harness with a voltmeter when the On/Off brew station warmer switch is in the upper “ON” position. Connect the brewer to the power source. The indication must be:

a)120 volts ac for two wire 120 volt models and three wire 120/240 volt models,

b)200 or 240 volts ac for two wire 200 volt or 240 volt models,

c)100 volts ac for two wire 100 volt models.

2.Disconnect the brewer from the power source.

3.Check the voltage across the pins of the blue wire (P1) and white wire (P2) on the main harness with a voltmeter when the On/Off brew station warmer switch is in the upper “ON” position and the start switch is pressed to the lower posi- tion and held. Connect the brewer to the power source. The indication must be as described in step 1.

4.Disconnect the brewer from the power source.

If voltage is present as described, reconnect relay plug to harness and proceed to #5.

If voltage is not present as described, refer to the Wir- ing Diagrams and check the brewer wiring harness.

5.Disconnect the plug terminal from the relay to the solenoid jumper wire. Check the voltage across the pins of the black wire (P3) and white wire (P2) on the relay with a voltmeter when the On/ Off brew station warmer switch is in the upper “ON” position. Connect the brewer to the power source. The indication must be as described in step 1.

6.Disconnect the brewer from the power source.

7.Check the voltage across the pins of the blue wire (P1) and white wire (P2) on the relay with a voltmeter when the On/Off brew station warmer switch is in the upper “ON” position and the start switch is pressed to the lower position and re- leased. Connect the brewer to the power source. The indication must be as described in step 1.

8.Disconnect the brewer from the power source.

If voltage is present as described, the relay is operat- ing properly.

If voltage is not present as described, remove and replace the relay.

Removal and Replacement:

1.Disconnect the brewer from the power source.

2.Remove the top cover or top warmer housing.

3.Disconnect both plug terminals from the relay.

4.Remove the two #8-32 screws attaching the relay and bracket assembly to the component bracket.

5.Remove the #6-32 screw attaching the relay to the bracket.

6.Securely attach the new relay to the bracket using the #6-32 screw.

7.Attach the new relay and bracket assembly to the component bracket using the two #8-32 screws.

8.Reconnect the relay wire terminals to their respec- tive plugs in the main harness and the jumper wire at the solenoid valve.

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Contents OL & RL Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty Contents Introduction User NoticesElectrical Requirements Electrical Hook-UpPlumbing Requirements Plumbing Hook-UpInitial Setup Repeat steps 13-16 until 64 oz water volume is achievedOperating Controls Cleaning Coffee BrewingTroubleshooting Problem Probable Cause RemedyTroubleshooting Problem Probable Cause Remedy MentTroubleshooting Problem Probable Cause Troubleshooting cont. Problem Probable Cause RemedyComponent Access ServiceContents Service Control Thermostat Control ThermostatService Warmers WarmersService Warmer Switches Model Warmer Switch Wiring RL Left Rear, Left Front, Right Rear & Right FrontService Start Switch Start Switch Model OLService Indicator Lamps See belowService Limit Thermostat Limit ThermostatService Solenoid Valve Solenoid ValveService Relay RelayService Tank Heater Tank HeaterService Water Level and Overflow Safety Switch If voltage is present as described, proceed to #6Service Master ON/OFF Switch Master ON/OFF Switch Model OLSchematic Wiring Diagram Schematic Wiring Diagram OLA SOL WHISchematic Wiring Diagram OL25B Schematic Wiring Diagram OL35B Schematic Wiring Diagram RL L1 L2 N Schematic Wiring Diagram RLA Schematic Wiring Diagram RL35B

RL00006929 specifications

The Bunn RL00006929 is a commercial-grade coffee brewer that exemplifies innovation, efficiency, and durability, making it a preferred choice for coffee shops, restaurants, and large offices. This model is designed to meet high-volume demands while ensuring consistent quality and flavor in every cup.

One of the most notable features of the Bunn RL00006929 is its capacity to brew up to 3.8 gallons of coffee per hour. This remarkable output is facilitated by its dual-funnel design, which allows for simultaneous brewing, reducing wait times and enhancing service speed. The brewer is equipped with a precise temperature control system, ensuring that water is heated to the optimal brewing temperature of 200°F. This consistency in temperature plays a crucial role in extracting the full flavor profile from coffee grounds.

In terms of design, the Bunn RL00006929 boasts a compact footprint, making it suitable for various settings, including kitchens with limited space. The unit features a stainless steel construction, which not only provides a sleek appearance but also contributes to its durability and resistance to corrosion. Additionally, the easy-access design makes maintenance straightforward, allowing operators to clean and service the unit with minimal effort.

The RL00006929 incorporates advanced technologies that enhance its functionality. For instance, the machine features a digital control panel that provides real-time feedback on brewing status, water temperature, and other critical parameters. This intelligent system allows operators to make quick adjustments and ensures that brewing conditions are always optimal.

Another standout characteristic is the integrated brew basket that holds filters securely in place, preventing spills and ensuring a smooth brewing process. This feature minimizes mess and simplifies the coffee-making process, making it user-friendly for both experienced baristas and novice operators.

In summary, the Bunn RL00006929 stands out for its high brewing capacity, precise temperature control, compact design, and user-friendly features. Its combination of advanced technology and durability makes it an excellent investment for any establishment that demands quality coffee at high volumes. With Bunn's reputation for excellence, the RL00006929 is a reliable choice for delivering exceptional coffee experiences.
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