Middleby Marshall PS53GS Gas manual Checking the Gas Supply Inlet Pressure

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1.Checking the Gas Supply (Inlet) Pressure

a. With the main gas supply valve closed and the circuit

breaker/fused disconnect in the OFF ("O") position, open

the inlet pressure tap shown in Figure 2-16 and attach a

manometer to the tap.

SECTION 2 - INSTALLATION

b.Volumetric Method

1.Determine the time of 0.1m3 (100 liters) of gas usage as follows.

b. Depress the safety switches to allow the oven to operate.

Consumption (m3/hr.) =

NB (Rated input in kW)

c.

Open the main gas supply valve. Switch the circuit breaker/

 

fused disconnect to the ON ("I") position.

d.

Start the oven according the directions in the Operation

 

section of this Manual. Adjust the temperature controller to

 

the maximum setting (316°C).

e.

Measure the supply (inlet) pressure.

f.

Switch the oven off. Close the main gas supply valve, and

 

switch the circuit breaker/fused disconnect to the OFF ("O")

 

position. Remove the manometer, and close the inlet tap.

g.

Compare the measured supply (inlet) pressure to the

 

nominal pressures shown in Table 1-5 (in the Description

 

section of this Manual).

If the supply pressure is lower or higher than the nominal pressure, the reason should be investigated and the gas supplier contacted.

For natural gas ovens, if the measured supply pressure is lower than 0.247psi, or higher than 0.363psi, contact the gas supplier. DO NOT OPERATE THE OVEN or adjust the oven controls.

2.Adjusting the Orifice (Manifold) Pressure and Heat Input

To use the orifice pressure method, you must know the specific gas type and quality used. If using the orifice pressure method, you should double-check the input using the volumetric method.

To use the volumetric method, you must know the heat value (HuB) of the gas used. This information is available from your gas supplier.

During these measurements, do not operate any other appliances that use the same gas meter as the oven.

a.Orifice (Manifold) Pressure Method

1.With the main gas supply valve closed and the circuit breaker/fused disconnect in the OFF ("O") position, open the manifold pressure tap shown in Figure 2-16 and attach a manometer to the tap.

2.Remove the cap screw from the pressure adjustment screw (governor) on the gas control valve.

3.Depress the safety switches to allow the oven to operate.

4.Open the main gas supply valve. Switch the circuit breaker/fused disconnect to the ON ("I") position.

5.Start the oven according the directions in the Operation section of this Manual. Adjust the temperature controller to the maximum setting (316°C).

6.Adjust the pressure adjustment screw as necessary to match the correct pressure for the oven's specific gas type. Refer to Table 1-5 in the Description section of this Manual. Turning the adjustment screw clockwise increases the flow, while turning it counterclockwise reduces the flow.

7.Switch the oven off. Close the main gas supply valve, and switch the circuit breaker/fused disconnect to the OFF ("O") position. Remove the manometer, and close the manifold pressure tap.

HuB (Heat [Calorific] value

of gas in kW/m3)

Time (in minutes) of

6

=

 

0.1m3 of gas usage

Consumption

 

2.Check that the main gas supply valve and the circuit breaker/fused disconnect are in the OFF ("O") position.

3.Remove the cap screw from the pressure adjustment screw (governor) on the gas control valve.

4.Depress the safety switches to allow the oven to operate.

5.Open the main gas supply valve. Switch the circuit breaker/fused disconnect to the ON ("I") position.

6.Start the oven according the directions in the Operation section of this Manual. Adjust the temperature controller to the maximum setting (316°C).

7.Adjust the pressure adjustment screw as necessary to match the calculated volume using the time (in minutes) of 0.1m3 of gas usage. Turning the adjustment screw clockwise increases the flow, while turning it counterclockwise reduces the flow.

8.Record the reading obtained from the gas meter and calculate the obtained gas flow. Compare this value to the information in Tables 1-4 and 1-5 in the Description section of this Manual.

9.Switch the oven off. Close the main gas supply valve, and switch the circuit breaker/fused disconnect to the OFF ("O") position. Replace the cap screw onto the gas control valve.

Figure 2-16 - Gas Control Valve

Manifold

pressure tap

(where regulated gas pressure is measured)

Pressure adjustment

screw (under cap)

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Contents PS536GS Gas Ovens Retain This Manual For Future Reference For Your SafetyTable of Contents Conveyor Drive Motor Moves the conveyor III. Oven SpecificationsDescription Oven UsesElectrical specifications for gas ovens per oven cavity Installation Included with gas hose Owners Operating and Installation ManualAuthorized Service Agency Listing Gas hose, 3/4″ to 1/2″ Gas hose reducerOther ventilation concerns II. Ventilation SystemRequirements RecommendationsFor CE export ovens III. AssemblyTop Panel and Base Pad Assembly For domestic and standard export ovensStacking Restraint Cable Installation10 Conveyor placement Conveyor Installation12 Conveyor and master link orientation Final AssemblyIV. Electrical Supply Additional Information Gas OvensConnection Gas Conversion DuringpressuretestingnotethefollowingGAS Supply Gas LineChecking the Gas Supply Inlet Pressure Adjusting the Orifice Manifold Pressure and Heat InputLocation and Description of Controls OperationDailystartupprocedure DailyshutdownprocedureII. Normal Operation STEP-BY-STEP Heat on III. Quick Reference Digital Temperature ControllerSP Lock OvertempMaintenance Daily MaintenanceII. Maintenance Monthly III. Maintenance Every 3 MonthsSplit Belt Disassembly and Cleaning Disassembling the idler shaft IV. Maintenance Every 6 Months Blower BeltLubricating the Blower Fan Bearings Parts List KEY Spare Parts KITQTY Description Page QTY Singleoven Doubleoven Tripleoven Description II. Installation KITPage III. PANELS, END Plugs and Window See ppNot Page IV. Control Compartment Page Not Shown Machinery Compartment and GAS TrainThis location. The opening provides passive Cooling onlyPage VI. Rear Compartment and Blowers Page Item QTY Conveyor Description VII. SINGLE-BELT ConveyorsPage VIII. SPLIT-BELT Conveyors Page Wiring diagram, PS536GS Gas Oven 208/240V, 50/60 Hz, 1 Ph Electrical Wiring DiagramsWiring diagram, PS536GS Gas Oven 208/240V, 50/60 Hz, 1 Ph Wiring diagram, PS536GS Gas Oven 208/240V, 50/60 Hz, 1 Ph Page Page Hour Service Hotline

PS53GS Gas specifications

The Middleby Marshall PS53GS Gas is a state-of-the-art conveyor oven designed to meet the needs of high-volume pizzerias and restaurants that require consistent performance and excellent food quality. With its innovative design and advanced technologies, the PS53GS delivers efficient cooking, enhances productivity, and maximizes flavor, making it an essential addition to any commercial kitchen.

One of the standout features of the PS53GS is its dual air impingement technology. This system optimizes airflow within the cooking chamber, allowing for even heat distribution and faster cooking times. As a result, pizzas and other baked goods achieve a perfectly cooked crust, ensuring that every dish served is of the highest quality. The oven’s high-performance burners provide precise temperature control, allowing chefs to set the desired cooking temperature for a wide range of menu items, from classic pizzas to baked pasta and bread.

The PS53GS is engineered for durability, built with stainless steel construction that not only gives it a sleek appearance but also ensures long-lasting performance. The oven's insulation retains heat efficiently, reducing energy consumption and operating costs. Additionally, the removable conveyor belt is designed for easy cleaning, making maintenance a breeze in a busy kitchen environment.

One of the commonly recognized characteristics of the PS53GS is its user-friendly control panel. Featuring intuitive digital controls, operators can easily adjust cooking times, temperatures, and conveyor speed to achieve the perfect results for various menu items. The customizable settings facilitate quick adjustments, enabling restaurants to cater to changing customer preferences and peak service times without sacrificing quality.

For enhanced operational efficiency, the PS53GS is available in various configurations to suit different kitchen layouts. The compact design allows it to fit into limited spaces while still providing ample cooking capacity. This versatility makes it an excellent choice for small establishments as well as larger operations looking to optimize their kitchen workflow.

In conclusion, the Middleby Marshall PS53GS Gas conveyor oven is a top-tier solution for any commercial kitchen focused on delivering exceptional food quality and efficiency. Through its advanced cooking technologies, durable construction, and user-friendly features, it stands out as an industry leader that can help businesses thrive in a competitive market. Whether for pizzas, pastries, or a variety of baked goods, the PS53GS is a reliable partner in culinary excellence.
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