SECTION 2 - INSTALLATION

 

IX. GAS SUPPLY (gas ovens only)

 

 

 

 

 

CAUTION

3. If incoming pressure is over 14” W.C. (35mbar), a sepa-

 

DURINGPRESSURETESTINGNOTEONEOFTHEFOLLOWING:

rate regulator MUST be installed in the line BEFORE the

 

1. The oven and its individual shutoff valve must be discon-

individual shutoff valve for the oven.

 

 

 

nected from the gas supply piping system during any pres-

WARNING: To prevent damage to the control valve regula-

ENGLISH

sure testing of that system at test pressure in excess of 1/

tor during initial turn- on of gas, it is very important to open

 

2 psi (3.45 kPa).

the manual shutoff valve very slowly.

 

2. The oven must be isolated from the gas supply piping

After the initial gas turn-on, the manual shutoff valve must

 

system by closing its individual manual shutoff valve during

remain open except during pressure testing as outlined in

 

any pressure testing of the gas supply piping system at test

the above steps or when necessary during service mainte-

 

pressure equal to or less than 1/2 psi (3.45 kPa).

nance.

 

 

 

 

A.Gas Utility Rough-In Recommendations

The following gas system specifications are STRONGLY RECOMMENDED. Deviating from these recommendations may affect the baking performance of the oven.

Gas Meter

•One or two oven cavities: 750 cfh meter

•Three or four oven cavities: 1200 cfh meter

Gas Line

•DEDICATED LINE from the gas meter to the oven

•2" (50.8mm) pipe for natural gas

•1-1/2" (38.1mm) pipe for propane

•Maximum length: 200' (61m). Each 90° elbow equals 7' (2.13m) of pipe.

B.Connection

Check the oven’s gas supply requirements before making the gas utility connection. Gas supply requirements are listed on the oven’s serial plate (Figure 2-23) and in the Gas Orifice and Pressure Specifications table (Page 5 of this manual).

Check the serial plate to determine the type of gas (Propane or Natural) to be used with the oven.

Refer to the instructions in the gas hose package (included in the Installation Kit) before connecting the gas line. One gas line connection method is shown in Figure 2-25; however, compliance with the applicable standards and regulations is mandatory.

Inlet, regulated, and pilot gas pressure readings can be taken using a “U” tube manometer at the tap locations shown in Figure 2-26.

NOTE

The installation must conform with local codes or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1- latest edition.

In Australia, the installation must conform with AGA Code AG601 and with any requirements of the appropriate statutory authority.

CANADIAN:

CAN/CGA-B 149.1 Natural Gas Installation Code CAN/CGA-B 149.2 Propane Installation Code

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 the oven is equipped with casters, 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 appli- cable, 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- Disconnect Devices for Use With Gas Fuel, CAN1-6.9 (in Canada).

C.Gas Conversion

Where permitted by local and national codes, it is possible to convert ovens from natural to propane gas, or from propane to natural gas. Use the appropriate Middleby Marshall Gas Conversion Kit for the specific oven model.

WARNING

The terms of the oven's warranty require all start-ups, conversions and service work to be performed by a Middleby Marshall Authorized Service Agent.

Figure 2-26 - Gas Burner and Piping Assembly

 

 

 

Model PS360EWB Only

 

Manifold pressure tap

Burner

Modulating gas valve

 

(where manifold gas

Blower

 

pressure is measured)

 

NOTE: PS360EWB ovens use a

 

 

 

modulating gas valve INSTEAD OF

 

 

 

a high flame solenoid valve and

 

 

 

low-flame bypass line.

Inlet pressure tap

On/Off Knob

 

 

Always leave in

 

 

(where incoming

“ON” position

Gas Burner

 

gas pressure is

 

 

 

measured)

High Flame

Pilot pressure tap

 

 

 

 

Solenoid Valve

(where pilot gas

 

 

Combination Gas

pressure is measured)

 

 

 

 

 

Control Valve

 

 

 

(Safety Regulator)

 

 

Manual

 

Low Flame

 

shutoff valve

 

Bypass Line

 

15

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Image 15
Middleby Marshall PS360S If incoming pressure is over 14 W.C mbar, a sepa, Duringpressuretestingnoteoneofthefollowing
Page 14 Page 16

PS314, PS310, PS360S, PS360Q, PS360 specifications

The Middleby Marshall PS360 is a cutting-edge conveyor oven that revolutionizes the way restaurants and commercial kitchens approach food preparation. Specifically designed to enhance efficiency and optimize cooking processes, this oven has gained recognition for its ability to deliver consistently high-quality results in a fast-paced environment.

One of the standout features of the PS360 is its innovative design that incorporates advanced forced air technology. This technology ensures even heat distribution throughout the cooking chamber, resulting in perfectly cooked pizzas, sandwiches, and other menu items without the need for frequent rotation. The forced air system also reduces cooking times, allowing for increased output, making it ideal for high-demand settings such as pizzerias and fast-casual dining establishments.

The PS360 is equipped with a user-friendly digital control panel that allows chefs to easily monitor and adjust cooking temperatures and times. This interface offers precise control over the cooking process, enabling users to customize settings based on specific recipes and customer preferences. Additionally, the oven features a range of programmable settings, allowing for quick adjustments that cater to varying menu items.

Another notable characteristic of the PS360 is its durable construction. Built with high-quality materials, it is designed to withstand the rigors of a busy kitchen environment. Its stainless steel exterior not only adds to its aesthetic appeal but also ensures easy cleaning and maintenance.

Safety is also a paramount concern for the Middleby Marshall PS360. The oven is designed with built-in safety features, including safety locks and temperature alerts, which help prevent accidents and ensure safe operation. The design also accommodates ventilation needs while maximizing energy efficiency, offering a sustainable solution for restaurants looking to reduce their carbon footprint.

Moreover, the PS360 is capable of handling a wide variety of menu items, from traditional pizzas to baked goods and roasted vegetables, making it a versatile addition to any kitchen. The ability to cook multiple items simultaneously streamlines kitchen operations and increases productivity.

In summary, the Middleby Marshall PS360 is a powerful and versatile conveyor oven that combines advanced technology, user-friendly features, and durable design. It enhances cooking efficiency, ensures consistent quality, and supports restaurants in delivering exceptional dishes to their customers. Whether for high-volume operations or varied menu needs, the PS360 stands out as an invaluable tool in commercial kitchens.
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