Bunn AXIOM 15-3T — Plumbed 120V Automatic Coffee Brewer with Variable Bypass Strength Control

A plumbed automatic brewer with adjustable strength

The Bunn AXIOM 15-3T is built for venues with a standard 120V electrical setup that want automatic, medium-volume brewing with the ability to adjust the strength of the coffee served.

Unlike the dual-voltage Axiom-DV-3T and AxiomP-DV-3T variants in this catalog, the 15-3T runs on 120V/15A only — a more affordable option for installations that don't need 120/208-240V flexibility. Like the other automatic Axiom brewers, it connects directly to plumbing.

What sets it apart

The large sprayhead distributes hot water more evenly over the coffee grounds, for more consistent extraction cup after cup.

Variable bypass lets you adjust coffee strength by diverting a small amount of hot water directly into the pot, without changing the recipe or grind — useful for tailoring taste to customer preference.

Key specifications

• 120V, 1800W, 15A power supply — single voltage, no dual-voltage option.
• Large sprayhead for more even extraction.
• Variable bypass for adjusting coffee strength.
• Three controlled warmers (two upper, one lower).
• 200oz (5.9L) tank — allows back-to-back brewing without waiting to refill.
• Built-in hot water faucet (requires an active plumbing connection).
• 213 W × 561 D × 480 H mm.

Day to day

The machine manages extraction automatically based on settings programmed from the front. Cold brew lock-out and automatic warmer time-out ensure consistently fresh coffee, while variable bypass lets you adjust strength to customer taste.

Who it's for / Who it's not for

• Ideal for: venues with a standard 120V electrical setup and an existing water line.
• Ideal for: those who want to adjust the strength of the coffee served based on customer preference.
• Less suited for: 208-240V electrical setups — see the dual-voltage Axiom-DV-3T or AxiomP-DV-3T in this catalog instead.
• Less suited for: locations without plumbing — see our portable Bunn VP17 or VPR pourover brewers instead.

Category positioning

At $1,401.43, the AXIOM 15-3T is the most affordable of the three 2-upper/1-lower-warmer Axiom brewers in this catalog, below the dual-voltage Axiom-DV-3T ($1,681) and the AxiomP-DV-3T with pourover backup ($1,771). A solid entry point for a standard 120V electrical setup.

Included / Compatible with

Includes the black plastic SplashGard® funnel. Servers are sold separately — compatible with Easy Pour® decanters and 64oz (1.9L) glass decanters available at L'Heureux.