WARNING

Improper installation, adjustment, alteration, service or maintenance can cause property damage, injury or death. Read the installation, operating and maintenance instructions thoroughly before installing or servicing this equipment.

WARNING

DISCONNECT THE OVEN FROM ITS ELECTRICAL

POWER SUPPLY BEFORE SERVICING.

NOTICE

During the warranty period, ALL parts replacement and servicing should be performed by your Middleby Marshall Authorized Service Agent. Service that is performed by parties other than your Middleby Marshall Authorized Service Agent may void your warranty.

NOTICE

Using any parts other than genuine Middleby Marshall factory manufactured parts relieves the

manufacturer of all warranty and liability.

NOTICE

Middleby Marshall reserves the right to change specifications at any time.

TABLE OF CONTENTS

Section 1 - Sequence of Operation

4

I.

Gas Oven Sequence of Operation

4

II.

Electric Oven Sequence of Operation

6

Section 2 - Air Flow and Heat Transfer

7

I.

Types of Heat Transfer

7

II.

Blowers and Blower Speed

7

 

A.

PS200-series ovens

7

 

B.

PS360-series ovens

8

 

C.

PS555/570-series ovens

8

III.

Air

Fingers

8

 

A.

Description and Function

8

 

B.

Configuration and Alignment

9

 

C.

Performing a Test Bake

9

 

D.

PS300/350 Air Finger Shutter Adjustment

10

IV.

Oven Capacity

12

 

A.

Conveyor Speed and Bake Time

12

 

B.

Belt Time

12

 

C.

Time of Delivery (TOD)

12

Section 3 - Troubleshooting and Servicing Components

 

I.

Conveyor Speed Controller and Drive Motor

13

 

A.

Part Number Reference - Speed Controllers

13

 

B.

Part Number Reference - Pickup Assemblies

14

 

C.

Preparing to Service the Speed Controller

14

 

D.

Controller/Motor Failure

15

 

E.

Basic Troubleshooting Flowcharts

16

 

 

•

If the Conveyor Runs at Full Speed

16

 

 

•

If the Conveyor Will Not Run at All

17

F.

Initial Troubleshooting

18

G.

Conveyor Control Pickup Test

19

H.

Conveyor Motor Test

19

I.

Replacing the Magnetic Pickup

19

J.Unshielded Pickup Wires on Early PS360-series Ovens . 19

K. Appendices

20

•Conveyor sensor wiring changes for PS360-series

and PS570S, 10/95

20

•Service Bulletin MM-133B - Installation Instructions for Conveyor Speed Controller Kit with Thumbwheel,

P/N 42810-0133, 4/95

21

•Instructions for Service Kit 42810-0133- Conveyor

Speed Controller Kit with Thumbwheel, 4/95

23

•Service Bulletin MM-177 - Introduction and Compat- ibility of Conveyor Speed Controller with Digital

Display, P/N 37337, 8/00

27

•Instructions for Service Kit 44756 - Conveyor Speed

Controller Kit for PS200R68-series Ovens, 2/02 ... 28

•Service Bulletin MM-189 - New Conveyor Gear

 

 

Motors, Brushes, and Pickup Clamps, 8/01

29

 

•

DIP switch settings for Conveyor Speed Controller

 

 

 

with Digital Display (P/N 37337), 4/02

30

II. Temperature Controller

30

A.

Part Number Reference - Temperature Controllers

31

B.

Description

32

C.

High Limit/Cooldown Functions

32

D.

Troubleshooting

32

E.

Appendices

32

•Temperature Controller Terminal

Cross-Reference, 4/02

32

•Instructions for Service Kit 47321 - Digital

Temperature Controller Kit, 2/02

33

•Service Bulletin MM-136 - Electrical Noise Filter

 

Capacitor Assembly on Temperature Controllers,

 

2

9/93

43

 

 

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Middleby Marshall PS555, PS570, PS360, PS200, PS220, PS224 PS310 manual Table of Contents
Page 2 Page 4

PS224 PS310, PS220, PS555, PS200, PS360 specifications

The Middleby Marshall PS555 is a standout commercial pizza oven renowned for its performance, efficiency, and advanced technologies. Designed with the modern pizzeria in mind, the PS555 delivers exceptional cooking results while maximizing energy efficiency and throughput.

One of the key features of the PS555 is its innovative cooking technology, which incorporates both convection and radiant heat. This unique combination ensures that pizzas are cooked evenly and quickly, achieving a perfectly crispy crust and evenly melted cheese every time. The oven’s high-speed air impingement system accelerates cooking times, allowing pizzerias to serve more customers in less time without compromising quality.

The PS555 is designed with a spacious cooking chamber that can accommodate multiple pizzas simultaneously. With its ability to fit pizzas up to 18 inches in diameter, the oven is ideal for establishments with high demand. Additionally, the adjustable conveyor speed allows operators to customize the cooking time based on their specific menu items, enhancing versatility and productivity.

Energy efficiency is a hallmark of the Middleby Marshall PS555. The oven utilizes advanced insulation materials to minimize heat loss, ensuring that it operates at optimal temperatures while consuming less energy. This efficiency not only reduces operating costs but also contributes to a more sustainable kitchen environment.

User-friendly controls make it simple for operators to manage the cooking process. The PS555 features digital controls with programmable settings, enabling quick adjustments to temperature and cooking time. This ensures consistent quality across different shifts and helps maintain product standards while simplifying staff training.

Durability is another defining characteristic of the PS555. Built with high-quality materials, the oven is designed for heavy use in busy commercial kitchens. Its stainless steel construction ensures resistance to wear and tear, making it a worthwhile investment for any pizzeria.

In summary, the Middleby Marshall PS555 pizza oven is a high-performance piece of equipment that combines advanced cooking technologies, efficiency, and durability. Its ability to deliver consistently excellent results while streamlining operations makes it an essential asset for any pizza business aiming to enhance its productivity and customer satisfaction.
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