SECTION 2

INSTALLATION

Electrical Junction

Cover Plate

Figure 2-12. Junction Connection Box

V. GAS SUPPLY FOR GAS HEATED OVENS

WARNING

During gas line pressure testing, observe the following precautions:

1.The oven and its individual shutoff valve MUST be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.45kPa).

2.The oven MUST be isolated from the gas supply piping system, by closing its individual shutoff valve, during any pressure testing of that system at test pressures equal to, or less than, 1/2 psig (3.45kPa).

3.If incoming gas line pressure exceeds

14w.c. (35mbar), a separate regulator MUST be installed in the line on the inlet side of the safety valve for the oven.

CAUTION

To prevent damaging the control valve regulator of the oven during initial turn-on of gas, the individual shutoff valve MUST be opened very slowly. After initial turn-on of gas, the individual shutoff valve should remain open except during gas line pressure testing (refer to the preceding WARNING) and during necessary servicing and maintenance procedures.

Check the oven data plate (Figure 2-11) before making any gas supply line connections. The type of gas (natural or propane) being supplied to the oven must agree with data on the oven data plate.

Certain safety code requirements exist for the installation of gas ovens; refer to the beginning of Section 2 for a list of the installation standards. In addition, because a PS540-Series oven is equipped with casters for accessi- bility during servicing, the gas line connection shall be made with a connector that complies with the Standard for Connectors for Movable Gas Appliances, ANSI Z21.69 (in U.S.A.), or, if applicable, Connectors for Movable Gas Appliances, CAN/CGA-6.16 (in Canada), as well as a quick-disconnect device that complies with the Standard for Quick-Disconnect Devices for Use With Gas Fuel, ANSI Z21.41 (in U.S.A.), or, if applicable, Quick-Discon- nect Devices for Use With Gas Fuel, CAN6.9 (in Canada).

One gas line connection method is shown in Figure 2-13; however, the preceding requirements must be satisfied. The 90-degree elbow and the union shown in Figure 2-13 are not furnished; however, the flexible gas line is part of the installation kit.

On an oven equipped with casters, a cable restraint assembly must be installed to limit the movement of the appliance, without depending on the connector and quick- disconnect device or its associated gas line installation. The location where the Cable Restraint Assembly is to be attached to the oven is illustrated in Figure 2-8.

20

Page 24
Image 24
Middleby Marshall PS540 installation manual GAS Supply for GAS Heated Ovens, Junction Connection Box

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.