Middleby Cooking Systems Group PS520E SECTION 1 DESCRIPTION

SECTION 1DESCRIPTION

SECTION 1

DESCRIPTION

I. MODEL IDENTIFICATION

The Mideleby Marshall PS520-Series may be used

either as a single oven or stacked for use as a double

or triple ovens.

A single PS520-Series Oven (Figure 1-1) is mounted

on a base pad with legs. A double oven (Figure 1-2)

consists of two, stacked, single ovens. A triple oven

(Figure 1-3) consists of three stacked single ovens.

The lower oven is mounted on a base pad.

On a double or triple oven, the ovens operate indepen-

dently. All ovens use identical controls and compo-

nents. One oven can be cleaned or serviced, while the

others are operating.

Figure 1-1. Single PS520 Oven

Figure 1-2. Double PS520 Oven

Figure 1-3. Triple PS520 Oven

Contents

Main Page iii Model No.________________________ Serial No._______________ Installation Date __________ MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY (Non-U.S.A.) MIDDLEBY MARSHALL No Quibble Limited Warranty (U.S.A. Only) iv Table of Contents Table of Contents (continued) SECTION 1 DESCRIPTION I. MODEL IDENTIFICATION Figure 1-3. Triple PS520 Oven Figure 1-1. Single PS520 Oven Figure 1-2. Double PS520 Oven NOTE PS520 SERIES OVEN SPECIFICATIONS SERIES PS520 ELECTRICAL SPECIFICATIONS II. COMPONENT FUNCTION Figure 1-4 Blower Assembly Figure 1-5 Machinery Compartment Components SECTION 2 INSTALLATION NOTE I. UNLOADING Page Page 7 UTILITY ROUGH-IN DIMENSIONS AND POSITIONING FOR PS520 SERIES OVENS DO NOT USE CONDUIT OR GAS LINE FOR GROUNDING CONNECTION II. VENTILATION III. ELECTRICAL CONNECTION INFORMATION FOR PS520-SERIES OVENS. Figure 2-11. Junction Connection Box Figure 2-10. Typical Electric Oven Data Plate IV. ELECTRIC SUPPLY FOR ELECTRICALLY HEATED OVENS 9 SECTION 3 OPERATION I. CONTROL FUNCTIONS Figure 3-1. PS520-Series Oven Control Functions WARNING Figure 3-2. Interior View of Control Console II. COMPONENT INFORMATION AND LOCATION (Figures 3-1 and 3-2) MEASURING CONVEYOR SPEED Figure 3-3. Conveyor Speed Digital Control Figure 3-5. Product at exit end of baking chamber - END OF TIMING Figure 3-4. Product at entrance end of baking chamber - BEGINNING OF TIMING III. STEP-BY-STEP OPERATION Figure 3-6. Control Panel 13 IV. NORMAL OPERATION - STEP-BY-STEP A. Daily Start-up Procedure B. DAILY SHUTDOWN PROCEDURE CAUTION Page 15 V. QUICK REFERENCE: TROUBLESHOOTING SYMPTOM PROBLEM SOLUTION SECTION 4 MAINTENANCE I. MAINTENANCE - DAILY Figure 4-1. Oven Cooling Fans Figure 4-2. Conveyor Belt and Crumb Pan Cleaning Figure 4-3 II. MAINTENANCE - MONTHLY Page Standard Fingers Figure 4-8 Figure 4-10 Figure 4-9 Page Figure 4-16 Figure 4-17 Figure 4-18 Figure 4-19 Figure 4-21 Figure 4-22 Figure 4-23 Figure 4-24 Figure 4-25 Figure 4-26 Figure 4-27 Figure 4-28 Figure 4-29 Figure 4-30 Figure 4-33 Figure 4-31 Figure 4-32 III. MAINTENANCE - EVERY 3 MONTHS IV. MAINTENANCE - EVERY 6 MONTHS Figure 4-34 Figure 4-35 PS520-SERIES ELECTRIC OVEN KEY SPARE PARTS KIT SECTION 5 TROUBLESHOOTING SECTION 5 TROUBLESHOOTING Page Page Page Page Page Page WARNING