Antunes, AJ MS-150/155 owner manual Technical Theory of Operation

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MIRACLE STEAMER

MAINTENANCE (continued)

Technical Theory of Operation

When the Rocker Switch (power On/Off) is ON, line voltage flows to the primary side of the step down transformer. The transformer’s secondary side supplies 12 and 24 VAC to the Control Board.

Once powered, and provided that the Generator tem- perature is below 380° F (193° C), the Control Board calls for heat by supplying 10 - 15 VDC to the Solid State Relay terminals 3(+) 4(-). Once powered, the Solid State Relay closes terminals 1 and 2 which allows line voltage to flow to the Generator.

As the Generator begins to heat up, a type “K” thermo- couple monitors the internal Generator temperature. As the heat continues to increase, so does the thermocou- ple’s DC millivolts. Once the Generator’s temperature rises to 380-420° F (193 - 215° C), the thermocouple is generating approximately 7.5 - 9.0 DC millivolts.

The Control Board receives these millivolts and pro- ceeds to remove the 10 - 15 VDC to the Solid State Relay since the heating circuit has now become sat- isfied. Then, relay terminals 1 and 2 open, and the Generator stops heating.

When the Operate, Single Shot, or Start/Stop button is pressed, the Control Board is signaled to supply 24 VAC to the solenoid valve used in models MS-250/255 or the water pump used in models MS-150/155/355 for a split second.

The solenoid valve opens, or the water pump runs, and allows a shot of water (approximately 25ml or 3-4 table- spoons) to flow onto the generator surface for steam- ing.

NOTE: If the display is in a Timed Cycle (counting down), the Control Board will continue to activate the solenoid valve or water pump for repeated shots of water, once every 20 seconds, and for the duration of the cycle time displayed. See the Programming section of this manual for more infor- mation.

Since the Generator Cover is secured in place with a wing nut, the steam is forced downward through the Generator Steam Ports and onto the product.

The Control Board’s parameters can be custom pro- grammed for the over all cycle steam time (CYC), as well as the interval time in seconds (SHO) when each shot of water occurs, and also the water volume (H2O) used per each shot of water. This Control Board also incorporates several Status Indicator LEDs. See the Operating and Programing sections of this manual).

An audio signal will sound for 3 seconds at the end of a Time Cycle. If the heating circuit continues to call for heat and the Generator overheats, a manual, resettable Hi-Limit Thermostat will trip and open the generator circuit.

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P/N 1010699 Rev. M 12/06

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Contents Miracle Steamer Table of Contents Owner InformationImportant Safety Information Service/Technical AssistanceImportant Safety Information DeathElectrical Ratings SpecificationsElectrical Cord & Plug Configurations Model Designation MS-150XXSpecifications DimensionsInstallation UnpackingInstallation Model MS-150/155 & MS-355Plumbing Connecting Water Supply to MS-250/255 Models MS-250/255Single Shot OperationGeneral All Units Except MS-150/250 Mfg. #9100424, 432, 433 Timed CycleOperation ProgrammingSHO Hi-Limit Reset Button Fault CodesStatus Indicator LEDs Maintenance DailyMonthly Maintenance Cleaning Steam GeneratorMiracle Steamer Components Water Tank FILTER-MODELS MS-150/155 only Water Tank Filter-MS-150/155 OnlyTechnical Theory of Operation Troubleshooting Problem Possible Cause Corrective ActionTroubleshooting Miracle Steamer Replacement Parts Replacement Parts MS-150/155 Service CompartmentMS-250/255 Service Compartment MS-150/155/250/255 Item Part No Description QtyItem Part No Description MS-355 Service Compartment MS-355 Item Part No Description Qty Part Description Qty Wiring Diagrams Unless Otherwise SpecifiedLimited Warranty

MS-150/155 specifications

The Antunes AJ MS-150/155 series is a premium line of commercial food service equipment designed to meet the evolving needs of the fast-paced food industry. Known for its reliability and efficiency, this series includes innovative features that cater to both high-volume and diverse menu offerings.

One of the standout attributes of the Antunes AJ MS-150/155 is its advanced cooking technology. Equipped with a precise digital control system, it allows for accurate temperature settings and time management, ensuring consistent cooking results with every use. This precision is crucial for maintaining food quality and meeting safety standards, particularly in busy kitchen environments.

The AJ MS-150/155 series incorporates a user-friendly interface with intuitive controls, making it easy for staff to operate even during rush hours. The digital display provides real-time monitoring of cooking processes, reducing the risk of errors and enhancing operational efficiency. Moreover, the units feature programmable cooking cycles, allowing operators to save specific settings for different menu items, thereby streamlining the food preparation process.

Durability is a hallmark of the Antunes brand, and the AJ MS-150/155 does not disappoint. Constructed with high-grade stainless steel, these units are built to withstand the rigors of a commercial kitchen. The materials used not only contribute to the longevity of the equipment but also make cleaning and maintenance straightforward, ensuring that hygiene standards are upheld.

In terms of versatility, the AJ MS-150/155 is suitable for various cooking applications, including toasting, baking, and even grilling. This multifunctionality provides food service operators with the flexibility they need to cater to a broad range of menu options, from sandwiches and wraps to baked goods and snacks.

Energy efficiency is another notable feature of the AJ MS-150/155 series. Designed to minimize energy consumption without compromising performance, the equipment can help businesses reduce their energy costs and environmental impact.

In summary, the Antunes AJ MS-150/155 series stands out as a reliable solution for commercial kitchens seeking efficiency, durability, and versatility. With its advanced technology and user-friendly features, this equipment is poised to enhance food preparation processes and support culinary creativity, making it an invaluable asset for any food service operation.
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