IV. Electric Supply for GAS- Heated Ovens

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 brown wire terminal and the other 208 - 240V supply line to the blue wire terminal. Connect the electric supply ground wire to the oven ground lug located in the main junction box. If neces- sary, 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

PS540 specifications

The Middleby Marshall PS540 is a state-of-the-art conveyor pizza oven that has garnered significant attention in the commercial kitchen world due to its advanced features and capabilities. This oven is designed to meet the high-volume demands of pizzerias, restaurants, and food service establishments, offering efficiency without sacrificing quality.

One of the standout features of the PS540 is its innovative air impingement technology. This system utilizes powerful jets of hot air that circulate around the pizza, ensuring even cooking and browning. The result is a perfectly cooked pizza with a crispy crust and melting cheese, all while reducing cooking times significantly compared to traditional ovens. The efficiency of the PS540 allows operators to increase output, making it a valuable asset during peak hours.

Another key characteristic of the PS540 is its adjustable conveyor speed, which enables operators to customize cooking times based on the specific menu items being prepared. This flexibility ensures that various pizzas, from thick crust to thin crust, can be cooked to perfection. The conveyor design also facilitates a seamless workflow in busy kitchens, allowing for easy loading and unloading of pizzas.

In addition to its cooking capabilities, the PS540 boasts a user-friendly control panel, featuring intuitive digital controls for temperature and cooking times. This user-focused design simplifies operation, allowing staff members to easily program the oven for consistent results. Furthermore, the oven's durable construction and high-quality materials ensure reliability and longevity, minimizing maintenance needs and downtime.

Energy efficiency is a critical consideration in commercial kitchens, and the Middleby Marshall PS540 stands out in this area as well. By optimizing airflow and heat transfer, the oven reduces energy consumption while maintaining exceptional performance. This not only contributes to lowering operational costs but also aligns with sustainability efforts in food service.

Safety features, such as cool-touch exteriors and integrated ventilation systems, further enhance the PS540's appeal, ensuring that it meets the rigorous standards required in commercial kitchens. Overall, the Middleby Marshall PS540 not only elevates pizza quality but also enhances operational efficiency, making it an indispensable tool for any high-volume restaurant or pizza establishment. With its blend of technology, performance, and ease of use, the PS540 sets a new standard for conveyor pizza ovens in the culinary landscape.