Adjustments

All adjustments to machine are accessible through the front display(s). Refer to specifics below and the Programming Routine section. All values are preset at the factory and may vary brewer to brewer.

Temperature Adjustment

Tank temperature can be adjusted from 170°F – 205°F (77°C – 96°C) through the front display. See Programming Routine section for procedure.

Brew Volume “br”

Brew time can be set for each size visually. See Setting Brew Volume Procedure below. Brew time can also be adjusted through the display. See Programming Routine section.

Setting Brew Volume Visually

1.Remove brew basket and place container under brew head.

2.Press and hold desired brew button for 5 seconds. Display will read “Pro”.

3.Within 20 seconds, press and release desired brew button. Water will dispense from spray head and time will count-up in display.

4.When volume is at desired amount, press and release brew button to stop flow. Time will flash in display.

5.Within 20 seconds, press and release desired brew button. Display will clear and brew time will be stored into memory.

Note: During this routine, no pulsing or bypass will occur.

Note: If the On/Off button is pressed during procedure, time setting will default to previous time.

Pulse Brewing “P-b”

Within the Programming Routine, the number of pulses, pulse-on-time, and pulse-off-time for each size brew cycle can be set. During the pulse-off cycle, water shuts off to the coffee grounds. During this period, the grounds in the brew basket absorb water causing the coffee bed to rise. With a larger bed of coffee in the brew basket, remaining water from spray head has more contact area with grounds causing greater extraction of finished coffee.

Note: Adjusting pulse values will not affect the finished brew volume. The brew time, however, will be automatically extended by the amount of total pulse OFF time.

See Brew Routine Section for examples.

Ratio “rto”

The ratio of the bypass flow rate versus the spray head flow rate is factory set. This number, however, rarely needs to be adjusted.

To find the proper value for the ratio:

1.Within the Programming Routine, set the bypass % to the maximum number allowable.

2.Remove the brew basket.

3.Prepare two containers to measure volume from both the spray head and bypass.

4.Press “Large” brew button to begin dispensing water.

5.After a minute or two, cancel the brew cycle by pressing the “Large” brew button or pressing the On/Off button.

6.Measure the volume of both containers.

7.Divide the bypass amount by the spray head amount. This number is to be entered as the new ratio (ex. “.45”).

8.Access the settings routine and adjust to the new ratio number.

Note: If the ratio number is accurate, changing the bypass percent will not require resetting brew time.

Note: Approximate ratio numbers:

.45 for standard spray head models

.64 for gourmet spray head models

Shuttle Brewers & Airpot/Shuttle Brewers

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Grindmaster AM-344-04 instruction manual Adjustments
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AM-344-04 specifications

The Grindmaster AM-344-04 is a robust and versatile appliance designed primarily for coffee brewing in commercial settings. This machine stands out in the industry due to its combination of advanced features, user-friendly design, and exceptional brewing capabilities, making it an essential addition for coffee shops, restaurants, and cafes that prioritize quality and efficiency.

One of the main features of the AM-344-04 is its programmable brewing system, which allows users to set precise brewing times and batch sizes. This customization ensures that each pot of coffee is brewed to perfection, catering to diverse customer preferences. The machine can brew up to 12 cups of coffee at a time, ideal for busy environments that demand high throughput.

The Grindmaster AM-344-04 is equipped with a digital control panel that simplifies operation for users. The intuitive interface provides real-time feedback on brewing cycles, water temperature, and brew times, enabling baristas to monitor the process closely. Additionally, the machine's high-efficiency heating element ensures rapid water heating, reducing wait times and increasing productivity, especially during peak hours.

Another notable characteristic of the AM-344-04 is its dual-funnel design, which allows for simultaneous brewing of different coffee blends. This feature is particularly beneficial for establishments that offer a variety of coffee types, as it enables operators to meet diverse customer needs without compromising on quality or service speed.

In terms of build quality, the Grindmaster AM-344-04 features a durable stainless-steel construction that not only enhances its aesthetic appeal but also ensures longevity. The machine is designed to withstand the rigors of daily use in a bustling environment, making it a reliable choice for coffee professionals.

Moreover, the AM-344-04 incorporates advanced brewing technology, including precision spray head systems that evenly distribute water over the coffee grounds. This feature enhances extraction, resulting in a richer and more flavorful brew. Additionally, the machine includes a built-in water filtration system, which helps to improve water quality, further enhancing the taste of the coffee.

Lastly, the Grindmaster AM-344-04 is designed with easy maintenance in mind. Its removable components facilitate quick cleaning, ensuring that the machine remains in optimal condition for high-quality brewing. This attention to ease of use and maintenance makes the AM-344-04 a smart investment for any coffee service operation looking to elevate its offerings. Whether you are a seasoned barista or a new coffee shop owner, the Grindmaster AM-344-04 promises to deliver an exceptional brewing experience.
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