Bunn AXIOM 4/2 Twin 15 Gallons Per Hour Coffee Brewer - BU387000014

Bunn AXIOM 4/2 Twin 15 Gallons Per Hour Coffee Brewer - BU387000014

The Bunn 38700.0014 AXIOM 4/2 Twin Coffee Brewer has a 15-gallon per hour capacity. This unit features a double brewer, LCD display, and touchpad to set pot level and tank temperature. This medium-volume brewing solution features Digital Brewer Control for precise extraction control. Decanters are sold separately (they must be ordered separately).

Features 

• Adjusts automatically to varying water pressure
• Automatic warmer shut-off
• For high lime areas, BrewLOGIC technology calculates flow rate and adjusts brew time to maintain consistent pot levels
• Electronic diagnostics and built-in tank drain make service easier
• Large 200oz. (5.9L) tank provides back-to-back brewing capacity
• Ensure coffee quality with programming for brew level, cold brew lock-out, and tank temperature, set easily from the front of the machine
• Coffee extraction controlled with programmable pre-infusion, pulse brew, and digital temperature precision
• Energy-saver mode reduces tank temperature during idle periods
• Hot water faucet
• SplashGard funnels deflect hot liquids away from the hand
• Six individually controlled warming stations
• Twin brew head system
• Decanters are not included

Specifications

What our Experts Think

• Built for high-volume commercial coffee service, ideal for hotels, cafeterias, offices, and large beverage stations needing continuous output.
• Delivers up to 15 gallons per hour (≈240 cups/hour), making it suitable for peak-demand environments with nonstop service needs.
• Features a twin brew head system, allowing simultaneous brewing for higher throughput and faster service times.
• Equipped with a 200 oz (5.9 L) internal hot water tank, enabling rapid back-to-back brewing with minimal recovery time.
• Includes six individually controlled warming stations (4 upper / 2 lower) to keep multiple decanters ready for service.
• Uses BrewLOGIC technology, automatically adjusting brew time based on water flow to maintain consistent pot levels even under variable water pressure.
• Includes BrewWIZARD digital controls, allowing easy programming of brew volume, temperature, and cold brew lockout settings.
• Supports pre-infusion and pulse brew extraction, improving flavor consistency and overall coffee quality across batches.
• Built with heavy-duty stainless steel construction, designed for long-term durability in demanding commercial environments.
• Includes energy-saver mode, hot water faucet, and electronic diagnostics, improving efficiency, versatility, and maintenance simplicity.

Q&A

Q: What is the Bunn AXIOM 4/2 Twin 15 Gallons Per Hour Coffee Brewer (BU387000014)?
A: The Bunn AXIOM 4/2 is a high-volume commercial automatic decanter coffee brewer featuring two brewing heads and six warming stations, designed for continuous coffee service in busy cafés, hotels, and foodservice operations.

Q: How much coffee does it brew per hour?
A: It delivers up to 15 gallons per hour (about 240 8-oz cups/hour), making it suitable for high-demand environments.

Q: What does the “4/2 Twin” configuration mean?
A: It has four upper and two lower independently controlled warming stations, allowing multiple decanters of coffee to stay hot and ready for service at the same time.

Q: What is the tank capacity and why does it matter?
A: It includes a 200 oz (5.9 L) hot water tank, which keeps water at brewing temperature so the machine can brew back-to-back without recovery delays.

Q: Does it support different brew settings?
A: Yes. It offers programmable brew levels, pulse brew, pre-infusion, and digital temperature control, helping maintain consistent flavor across batches.

Q: What is BrewLOGI technology?
A: BrewLOGIC automatically adjusts brew time based on water flow conditions, helping maintain consistent pot levels even in areas with varying water pressure or mineral buildup.

Q: Does it require plumbing?
A: Yes. It is a plumbed automatic brewer, designed for continuous operation in commercial environments.

Q: What are the electrical requirements?
A: It typically runs on 120/208–240V power, 60Hz, single-phase, with high power draw (around 6700W / 27.9A) for heavy-duty operation.

Q: What is the Bunn AXIOM 4/2 best used for?
A: It is best suited for high-volume foodservice operations like large restaurants, hotels, cafeterias, and events where continuous decanter coffee production and multiple warm holding stations are required.

Maintenance Tips

• Daily sprayhead cleaning (critical): Remove and clean both sprayheads to keep all ports clear for even water distribution. This ensures balanced extraction across both brew heads and prevents weak or inconsistent pots.
• Regular deliming (1–3 months): Use a deliming spring in the sprayhead tube to remove mineral scale buildup that reduces flow rate, slows brew cycles, and causes underfilled decanters.
• Clean brew funnels daily: Wash thoroughly to remove coffee oils that cause bitterness, slow drainage, and flavor contamination between batches.
• Flush hot water faucet weekly: Run the faucet to prevent mineral blockage and ensure reliable hot water output for tea or cleaning.
• Wipe exterior & warming stations daily: Clean warming plates, splash zones, and control panels with mild detergent to prevent residue buildup and overheating wear.
• Check BrewLOGIC/BrewWIZARD performance alerts: Monitor diagnostics for flow adjustments, temperature drift, or scale warnings—these systems compensate but still need clean water pathways.
• Maintain water pressure (20–90 PSI): Stable pressure is essential for consistent 15 GPH output and accurate automatic volume adjustment.
• Descale internal tank periodically: Prevents slow recovery time, reduced temperature stability, and inconsistent brew strength in high-volume operation.
• Inspect warmers and auto shut-off functions: Ensure all 6 warming stations cycle correctly to avoid overheating or dry burning decanters.
• Keep brewer level and properly ventilated: Ensures accurate batch fill levels and protects electronic diagnostics and heating components.