OWNERS OPERATING AND INSTALLATION MANUAL
PS640 Series Gas Ovens
for domestic and standard export ovens
Model
RETAIN THIS MANUAL FOR FUTURE REFERENCE
MIDDLEBY MARSHALL INC. OVEN LIMITED WARRANTY Non U.S.A
MIDDLEBY MARSHALL
NO QUIBBLE LIMITED WARRANTY
U.S.A. ONLY
SECTION 3 - OPERATION
TABLE OF CONTENTS
SECTION 5 - ELECTRICAL WIRING DIAGRAM
SECTION 1 - DESCRIPTION
I. OVEN USES
II. OVEN COMPONENTS - see Figure
Figure 1-1. Oven Components
I. OVEN SPECIFICATIONS
GAS ORIFICE AND PRESSURE SPECIFICATIONS PER OVEN CAVITY - CE OVENS
Wiring Diagrams are contained in Section 5 of this Manual
and are also located inside the oven at the
SECTION 2 - INSTALLATION
Perform a gas leak test
Test for correct air supply, particularly to the burner blower
Test for proper combustion and gas supply
PS640 24″ OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT
PARTS LIST FOR SERIES PS640 GAS OVEN INSTALLATION KIT P/N
Figure 2-1A. PS640-Series Gas Oven Installation Parts
Two required for double oven Three required for triple oven
PS640 32″ OVEN INSTALLATION REQUIRED KITS AND EQUIPMENT
PARTS LIST FOR SERIES PS640 GAS OVEN INSTALLATION KIT P/N
Figure 2-1B. PS640-Series Gas Oven Installation Parts
Two required for double oven Three required for triple oven
Figure 2-2A. Model PS640 24″ Single Oven
Option Base with Legs and Top
Figure 2-2B. Model PS640 32″ Single Oven
Option Base with Legs and Top
Figure 2-3A. Model PS640 24″ Double Oven
Option Base with Legs and Top
HARDWARE BAG
5, 6, 7, 10
Figure 2-3B. Model PS640 32″ Double Oven
Option Base with Legs and Top
HARDWARE BAG 7, 8, 9, 10, 11, 12, 13, 14
Figure 2-4A. Model PS640 24″ Triple Oven
Option Base with Outriggers and Top
Figure 2-4B. Model PS640 32″ Triple Oven
Option Base with Outriggers and Top
equipment directly to the oven
RESTRICT SERVICE ACCESS
LEAD TO INCREASED SERVICE EXPENSES FOR THE OWNER
MOUNTING SUCH EQUIPMENT ON THE OVEN MAY VOID AGENCY CERTIFICATIONS
IV. ASSEMBLY
Figure 2-7. Base pad Installation
Figure 2-6. Leg extension and casters installation
Figure 2-8. Top panel installation
Figure 2-10. Top panel installation
Figure 2-9. Stacking Figure 2-11. Installing the Restraint Cable
C. Restraint Cable Installation
B. Stacking
Figure 2-12. Conveyor installation
Figure 2-13. Conveyor placement
D. Conveyor Installation
Figure 2-14. Conveyor Belt tension
RESETTING DIRECTION JUMPER
SWITCHING PHOTO DETECTOR
CAUTION Disconnect Power Before Switching Photo eye
CONVEYOR BELT REVERSAL
CAUTION The terms of the oven’s warranty require all
CAUTION DURING PRESSURE TESTING NOTE ONE OF THE FOLLOWING
Connection
VII. GAS SUPPLY
Figure 2-18. Flexible Gas Hose Installation
Figure 2-19. Gas Burner Assembly
E. Adjusting the Maximum Pressure Setting
B. Connection
Figure 2-21. Gas Valve
Gas Valve Main PressureMain TapOrifices Gas Burner Assembly
Figure 2-20. Burner Assembly
SECTION 3 - OPERATION
I. LOCATION AND DESCRIPTION OF CONTROLS
A. Daily Startup Procedure
B. Daily Shutdown Procedure
B. Oven Temperature/Set Point/Indicator Screen
II. NORMAL OPERATION - STEP-BY-STEP
III. QUICK REFERENCE TROUBLESHOOTING
SYMPTOM
PROBLEM
SOLUTION
SECTION 4 - MAINTENANCE
I. MAINTENANCE - DAILY
Figure 4-1. Cooling Vents and Grills
CAUTION If a cooling fan is not operating correctly, it must
II. MAINTENANCE - MONTHLY
Top Row
Bottom Row
Figure 4-2. Removing Air Fingers and Plates
Figure 4-4. Disassembling the idler shaft
III. MAINTENANCE - EVERY 3 MONTHS
Figure 4-5. Drive shaft configurations
Figure 4-6. Disassembling the drive shaft
IV. MAINTENANCE - EVERY 6 MONTHS
Figure 4-7. Rear panel access
KEY SPARE PARTS PS640 GAS
Figure 4-8. Key Spare Parts
SECTION 5 - WIRING DIAGRAM
Middleby-Marshall Model Number G208-240 Volt 50/60 Hz, 1 Phase
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relieves the manufacturer of all warranty and liability
