Bunn TB3Q-LP service manual Electrical Requirements, Plumbing Requirements, Proceed as follows

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ELECTRICAL REQUIREMENTS

CAUTION - The brewer must be disconnected from the power source until specified in Initial Set-Up.

120V model brewers require 2-wire, grounded service rated 120 volts ac, 15 amp, single phase, 60 Hz. "A" model brewers require 2-wire, grounded service rated 230 volts ac, 10 amp, single phase, 50 Hz. "B" model brewers require 2-wire, grounded service rated 100 volts ac, 15 amp, single phase, 60 Hz.

WARNING - If the power cord is ever damaged, it must be replaced by the manufacturer or its service agent with a special cord available from the manufacturer or its service agent in order to avoid a hazard.

Proceed as follows:

Electrical Hook-Up

CAUTION - Improper electrical installation will damage electronic components.

1.An electrician must provide electrical service as specified.

2.Using a voltmeter, check the voltage and color coding of each conductor at the electrical source.

3.Remove top cover from the brewer.

4.Rotate the control thermostat knob fully counterclockwise to the "OFF" position and replace the top cover.

5.Connect the brewer to the power source.

6.If plumbing is to be hooked up later be sure the brewer is disconnected from the power source. If plumbing has been hooked up, the brewer is ready for Initial Set-Up.

PLUMBING REQUIREMENTS

These brewers must be connected to a cold water system with operating pressure between 20 and 90 psi (138 and 621 kPa) from a 1⁄2" or larger supply line. A shut-off valve should be installed in the line before the brewer. Install a regulator in the line when pressure is greater than 90 psi (621kPa) to reduce it to 50 psi (345 kPa). The water inlet fitting is 1⁄4" flare.

NOTE: Bunn-O-Matic recommends 1⁄4" copper tubing for installations of less than 25 feet and 3⁄8" for more than 25 feet from the 1⁄2" water supply line. A tight coil of copper tubing in the water line will facilitate moving the brewer to clean the countertop. Bunn-O-Matic does not recommend the use of a saddle valve to install the brewer. The size and shape of the hole made in the supply line by this type of device may restrict water flow.

This equipment must be installed to comply with the Basic Plumbing Code of the

Building Officials and Code Administrators International, Inc. (BOCA)

and the Food Service Sanitation Manual of the Food and Drug Administration (FDA).

1.Remove the shipping cap from the bulkhead fitting on the rear of the brewer.

2.Flush the water line and securely attach it to the bulkhead fitting on the rear of the brewer.

3.Turn on the water supply.

NOTE: TheFlow Control/Strainer assembly is internal, located inside the back panel.

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Contents TB3Q TB3Q-LP Phone 217 529-6601 FAX 217BUNN-O-MATIC Commercial Product Warranty ContentsIntroduction User Notices #37881.0000#06064.0000 #32540.0000Electrical Requirements Plumbing RequirementsProceed as follows Electrical Hook-UpInitial SET-UP Centrate Machines will Yield only 76 OZAuto Sweetener SET-UP Adjusting Brew Volumes Auto Sweetener Cleaning CleaningOperating Controls TEA Brewing Troubleshooting Problem Probable Cause RemedyTroubleshooting ProblemProbable Cause RemedyDrip-out time too long Funnel Tip Ticles clogging the drip-out tipSweetener is not working Sweetener box is empty Sure it is not out of productBrew Timer Dripping from sprayheadSyphon System Lime Build-up Beverage overflows dispenser Brew Solenoid ValveProblem Probable Cause Remedy Service Component AccessService Test Procedures Disconnect the brewer from the power sourceBrew Solenoid Valve Solenoid valveDigital Brew Timer If voltage is as described, proceed to #7Service Digital Brew Timer Digital Timer WiringControl Thermostat Control ThermostatRemove the blue/black wire from the limit ther- mostat Limit ThermostatON/OFF Switch Refer to when reconnecting the wires LocationSwitch terminals On the switch terminalStart Switch Start SwitchUNSWEET/OFF/SWEET Switch Sweetner Option Sweetner Solenoid Valve Sweetner Solenoid ValveTank Heater Volts AC Wire Single Phase Volts ACSchematic Wiring Diagram TB3QA
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TB3Q, TB3Q-LP specifications

The Bunn TB6Q, TB3-LP, TB6, TB3Q, and TB3Q-LP coffee brewers are a popular series of commercial machines designed for high efficiency and optimal performance in busy environments such as cafes, restaurants, and offices. These machines are crafted with a focus on quality, dependability, and advanced brewing technology to deliver a superior coffee experience.

One of the standout features across the Bunn TB series is the ability to brew large quantities of coffee quickly. The TB6Q, for instance, can brew up to 6 gallons of coffee per hour. This high volume brewing capability ensures that establishments can keep up with demand, especially during peak hours. Additionally, the machines come with a unique design that incorporates a pre-infusion feature, allowing for the coffee grounds to be evenly saturated before brewing begins, enhancing the flavor extraction process.

The TB3-LP model is designed for low-profile applications where counter space may be limited. Despite its compact design, it still offers impressive performance, brewing up to 3.8 gallons per hour. The low-profile feature makes it an ideal choice for settings that require efficiency and space optimization without compromising on the quality of the brew.

Another notable member of the series, the TB3Q and TB3Q-LP, feature a quick brew ratio, allowing users to brew up to 3 gallons of coffee in just a few minutes. These models are equipped with easy-to-use controls for simplified operation, making them perfect for staff training and user accessibility.

All models in the TB series include a hot water faucet, allowing users to dispense hot water for tea or other hot beverages quickly. This versatility adds significant value, especially in multi-beverage settings.

Regarding durability, the Bunn TB series is constructed with high-quality materials, ensuring longevity and reliability. The machines also feature internal components that are easy to access for maintenance, thus reducing downtime and improving the overall efficiency of the machine.

In terms of technology, these brewers often incorporate advanced diagnostics to promptly identify service needs or issues. The machines come with a precise brewing temperature control system that ensures each cup is brewed at the optimal temperature for maximum flavor extraction.

Overall, Bunn's TB6Q, TB3-LP, TB6, TB3Q, and TB3Q-LP coffee brewers represent the culmination of advanced brewing technology and practical design for commercial coffee solutions. Their efficiency, quality, and ease of use make them a staple in many establishments, solidifying Bunn's reputation as a leader in the coffee brewing industry.
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