III.ELECTRICAL CONNECTION INFORMATION FOR PS540-SERIES OVENS.

WARNING

Authorized supplier personnel normally accom- plish the connections for the ventilation system, electric supply, and gas supply, as arranged by the customer. Following these connections, the factory-authorized installer can perform the initial startup of the oven.

Check the oven data plate (Figure 2-11) before making any electric supply connections. Electric supply connections must agree with data on the oven data plate.

NOTE: The electric supply installation must satisfy the requirements of the appropriate statutory authority, such as the National Electrical Code (NEC), ANSI/NFPA70, (U.S.A.); the Canadian Electrical Code, CSA C22.2; the Australian Code AG601; or other applicable regulations.

A fused disconnect switch or a main circuit breaker (customer furnished) MUST be installed in the electric supply line for each oven; it is recommended that this switch/ circuit breaker have lockout/tagout capability. The electric supply connection must meet all national and local electrical code requirements. Copper is the recommended material for the electrical supply conductors.

IV. ELECTRIC SUPPLY FOR GAS- HEATED OVENS

Supply voltages for all gas ovens (except one 200 - 220V oven for export) can range from 208 to 240VAC, 1 phase. Ampere requirements for each oven can be handled via a fused disconnect switch or main circuit breaker.

NOTE: The electric supply installation must satisfy the requirements of the appropriate statutory authority, such as the National Electrical Code (NEC), ANSI/NFPA70,

SECTION 2

INSTALLATION

(U.S.A.); the Canadian Electrical Code, CSA C22.2; the Australian Code AG601; or other applicable regulations.

The supply conductors must be of the size (#14 AWG, copper) recommended. (Refer to the wiring diagrams of Section 7.) All gas oven electric supply connections are made via the electrical junction box on the rear of the oven (Figure 2-12). The power lines then connect through an oven safety switch (on the control console door frame) to the oven circuits. Opening the door interrupts electric power to the oven.

CAUTION

Before connecting incoming power to the oven, measure the voltage of each input leg to neutral. The expected voltage is approximately 120 volts. Any voltage reading exceeding 130 volts indicates that the supply has a ‘high’ leg.

CONNECTING A ‘HIGH’ LEG TO THE OVEN VOIDS ALL OVEN WARRANTIES. Connecting a ‘high’ leg to the black lead of the oven can severely damage the oven’s electrical and electronic components.

CAUTION

DO NOT CONNECT BLACK

WIRE TO HIGH LEG.

VOLTAGE OF THE BLACK AND

WHITE WIRES MUST BE NO

HIGHER THAN 130 VAC

Contact an electrician or the electric power supply com- pany to remove the ‘high’ leg from the electric supply line(s) to the oven.

In the junction box on the rear of the oven, connect one 208 - 240V supply line to the black wire and the other 208 - 240V supply line to the red wire. Connect the supply neutral line to the white wire. Connect the electric supply ground wire to the oven ground screw located in the main junction box. If necessary, have the electrician supply the ground wire. Do NOT use the wiring conduit or other piping for ground connections!

Figure 2-11. Typical Gas Oven Data Plate

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Middleby Marshall PS540G installation manual IV. Electric Supply for GAS- Heated Ovens, Typical Gas Oven Data Plate
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PS540G specifications

The Middleby Marshall PS540G is a cutting-edge conveyor oven designed to meet the diverse cooking needs of commercial kitchens and food service operations. Known for its efficiency and reliability, the PS540G combines advanced technology with innovative design to deliver consistent cooking results while optimizing energy use.

One of the standout features of the PS540G is its high-efficiency impingement cooking system. This technology utilizes powerful jets of hot air that quickly and evenly circulate around the food, ensuring thorough cooking while significantly reducing cooking times. This results in faster service and improved throughput, making it an excellent choice for busy restaurants, cafes, and catering operations.

The oven is equipped with a unique dual-fuel option, allowing operators to choose between natural gas or propane. This flexibility helps businesses adapt to their specific requirements and preferences, providing both cost and energy-saving benefits. Additionally, the PS540G is designed with a fully insulated structure, minimizing heat loss and further enhancing energy efficiency.

Another key characteristic of the Middleby Marshall PS540G is its user-friendly control interface. The digital controls offer precise temperature settings and adjustable conveyor speeds, allowing chefs to customize the cooking process for various food items. This versatility ensures optimal results, whether baking pizzas, roasting vegetables, or toasting sandwiches.

The spacious cooking chamber of the PS540G is designed with a wide conveyor belt that accommodates large batches of food, making it particularly suitable for high-volume establishments. The oven's compact footprint allows it to fit into tight kitchen spaces without sacrificing cooking capacity.

Safety is also a priority in the design of the PS540G. The oven features automatic shut-off mechanisms and cool-to-the-touch exterior surfaces, allowing for safer operations. Additionally, the durable construction with stainless steel components ensures longevity and ease of maintenance.

In conclusion, the Middleby Marshall PS540G is a state-of-the-art conveyor oven that offers outstanding performance for commercial kitchens. With its advanced impingement cooking technology, flexible dual-fuel options, user-friendly controls, and robust safety features, the PS540G stands out as an essential tool for any food service operation looking to enhance efficiency and food quality.
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