HFB12

Overview

The Hobart HFB12 is an electric FlashBake oven that uses visible and infrared light energy for high-speed cooking. The manual explains that infrared energy browns the food’s surface while visible light penetrates and heats it internally. This radiative cooking process can brown and crisp bread products while helping vegetables retain their colour and texture.

The HFB12 has stainless steel front, sides and top, plus a stainless steel door with a viewing window. Its electronic digital control accepts 20 recipe programs. The oven is listed in corded and non-corded electrical configurations; check the rating plate on the specific unit before installation.

Key Features

• Seven cooking lamps: Seven 2,000-watt quartz halogen lamps, with four at the top and three at the bottom.
• No preheat time: The lamps switch on and off instantly, according to the equipment listing.
• Programmable controls: Stores 20 recipe programs using standard, two-step or term-pulse cooking methods.
• Rotating grill: The manual identifies a 16-inch stainless steel grill and describes the grill assembly’s rollers.
• Stainless steel construction: The listing identifies stainless steel on the front, sides and top, and a stainless steel door with a viewing window.
• Cooling blower: The blower turns off automatically after approximately four minutes of non-use, according to the manual.

Specifications

• Manufacturer and model: Hobart HFB12 Electric FlashBake Oven.
• Model identifiers in the manual: ML-114906 without power cord; ML-114909 with power cord.
• Lamp arrangement: Seven quartz halogen lamps; four upper and three lower.
• Lamp rating: 2,000 watts per lamp.
• Recipe storage: 20 programs.
• Cooking methods: Standard, two-step and term pulse.
• Listed cooking-area dimensions: 18 inches wide × 18 inches deep × 7¾ inches high.
• Electrical details reported in the equipment listing: 208–240 volts, 60 Hz, three phase, 11.9 kW.
• Electrical configurations described in the manual: Single-phase or three-phase; corded or direct line connection. The supply must agree with the oven’s rating plate.
• Exterior: Stainless steel front, sides and top.
• Grill: 16-inch stainless steel.

Installation & Requirements

Before installation, the manual instructs the installer to compare the electrical service with the specifications on the rating plate at the rear of the oven. If they do not agree, the manual says not to proceed with installation and to contact Hobart. The oven may be ordered with a six-foot power cord for receptacle installation or for direct line electrical connection, in single-phase or three-phase service. The ML-114906 identifier refers to the version without a power cord, and ML-114909 to the version with a power cord.

Install the oven on a level countertop. The manual specifies three inches of clearance on each side. Keep the area behind the oven around the blower clear so cooling air can circulate; obstructed or heated inlet air can prevent proper operation. The manual states that HFB12 ovens must not be stacked.

In Canada, the manual calls for installation in accordance with local codes and the Canadian Electrical Code, Part 2, CSA Standard C22.1, latest edition. It also lists local codes and the National Electrical Code, ANSI/NFPA-70, latest edition, for the United States.

For a 240-volt single-phase oven, the manual states that both hot legs must read 120 volts to ground and that the stinger leg must not be connected to a single-phase oven. For a 240-volt three-phase oven only—not a 208-volt oven—the manual specifies connecting the stinger to the blue pigtail for hard-wired units or to the receptacle pin opposite the ground lug for cord-connected units. It describes the stinger as reading approximately 210 volts to ground, while the other two legs read approximately 120 volts. These instructions do not replace checking the unit’s rating plate and applicable electrical requirements.

The manual includes an exhaust-duct installation section, but the provided excerpt does not state duct dimensions or a specific ventilation arrangement. It does specify that the blower area and inlet airflow must remain unobstructed.

Operation

The HFB12’s digital controls use saved recipe programs to set cooking methods. In the manual’s startup test, the operator turns on the oven and waits for the display to settle on Recipe 1. A lamp test can then be started through the control buttons; the door locks and each lamp turns on briefly. The display reports whether each lamp passes the test.

The manual also describes a system-voltage display that reports the voltage and whether the oven is single- or three-phase. For three-phase service it reports phasing as CW or CCW; the manual says either phasing is acceptable for this check. The displayed voltage should match the nominal supply to the oven: 208 or 240 volts.

Follow the operating precautions in the manual: do not try to open the door during a cook cycle or operate with the door open; do not run the oven without food, the grill, or properly installed, undamaged lamp shields. The oven and its parts become hot. Use appropriate heat protection and prepare a safe surface for hot pans before removing them.

The manual recommends FlashWare Pyroceram pans in 9- and 12-inch sizes, as well as metal, aluminum and Silverstone pans. Consult the manual’s utensil guidance for any cookware not listed here.

Cleaning & Maintenance

Disconnect the electrical supply before cleaning or maintenance, and allow the oven to cool before cleaning. The manual recommends cleaning after each shift; it notes that a busy operation may need interim wipe-downs. At least once each day, while the oven is cool, visually inspect the cavity and check that both lamp shields are present, clean and unbroken, with no obvious damaged, worn or broken parts.

The manual lists mild non-caustic dish soap, Citrus 2000 Multi-Purpose Ready To Use, Pro Formula 409 for interior walls, Windex Powerized Formula for the door window, Norcross Bar-Be-Que and Grill Cleaner for the grill, and an FDA food-quality sanitizer for cooking surfaces. Listed tools include a foodservice-quality terry towel, a certified non-abrasive pad, a small wire brush for the grill rollers and the FlashBake lamp shield scraper. Rinse cleaned surfaces to remove cleaning products and wipe them dry. Do not pour cleaning liquid into the oven; apply it with a damp cloth. The manual warns against abrasive materials and chemicals not recommended for aluminum on the reflective cavity surfaces, and against abrasives on the reflective inside door surface.

To clean the grill, remove it from the oven first. Brush its rollers so they spin freely, then wash the rollers with mild soap and water, rinse and dry them. Wipe food debris from the cavity from back to front. The upper lamp shield can be removed with the door open after the oven is turned off; clean it when food or grease begins to build up and reinstall it fully seated behind its retaining feature. The lower lamp shield is identified in the manual illustration as non-removable.

Never touch the cooking lamps: skin oils can cause premature lamp failure. If a lamp is touched, the manual says to wipe it gently with a clean, lint-free cloth dampened with rubbing alcohol. Replace lamps through a local Hobart service representative. The manual says not to remove oven covers or open the control cabinet; there are no user-serviceable parts inside. Two replaceable fuses and two resettable circuit protectors are located at the rear. The manual specifies Class CC 3-amp fuses only.

Troubleshooting

• No power to the oven: Check whether the power cord is unplugged or the main branch circuit breaker has tripped, as listed in the manual.
• No power to controls or display: The manual lists a tripped circuit protector or blown fuse. It says the rear circuit protector can be reset by pressing its button and specifies Class CC 3-amp replacement fuses.
• Blower not operating: Check for an obstruction in the blower airflow path; the manual also lists blown fuses as a possible cause.
• Oven not cooking: Check recipe settings and make sure the time and power-level settings are not zero.
• Display does not light, grill does not rotate, door does not lock or high power is unavailable: The manual lists circuit protector 1 or 2 at the rear as a possible cause for these symptoms. It directs the operator to press the reset button when a protector has tripped.

The manual lists display messages including “DOOR IS OPEN,” “DOOR IS NOT CLOSED,” “OVEN OVERHEATED ALLOW TO COOL,” “LAMPS ARE ON,” “H.V. IS TURNED OFF” and “OVEN TOO HOT NOW ITEM MAY OVERCOOK.” If an alarm sounds, check the display for the reported condition and follow the manual’s operating guidance.

Applications

The HFB12 is suited to foodservice operations that need rapid cooking or finishing of items such as pizza, sandwiches, bread products and vegetables. The manual describes browning and crisping bread products while helping vegetables retain colour and texture. Its stored recipe programs support repeatable cooking methods, while its rotating grill accommodates food placed on the included grill. Confirm cookware compatibility and program settings for the food being prepared.