Middleby Marshall Electric Ovens PS536-Series - Manual (Page 4)

iv
NOTE
Wiring Diagrams are in Section 7 of this Manual.
The diagram for each oven is also on the lower
inner surface of its Control Console.
TABLE OF CONTENTS
Page
SECTION 1
I. MODEL IDENTIFICATION .............................................. 1
SERIES PS536 ELECTRICAL SPECIFICATIONS ............. 2
II. PRINCIPLE OF AIR FLOW ............................................. 3
A. Heat Transfer and How It Works .............................. 3
II. PRINCIPLE OF AIR FLOW (Continued) ........................ 4
B. Air Fingers ................................................................. 4
III. COMPONENT FUNCTION ............................................ 5
A. Conveyor Motor and Conveyor Belt ........................ 6
B. Blower Fan ................................................................. 6
C. Electric Heaters ........................................................ 6
D. Window ....................................................................... 6
E. Cooling Fan ................................................................ 7
F. Air Fingers and Blank Plates - See Figure 1-9 ......... 8
SECTION 2
I. UNLOADING ................................................................... 9
PS536 OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT ........................ 10
PARTS LIST FOR SERIES PS536 ELECTRIC OVEN
INSTALLATION KIT .................................................. 10
PARTS LIST FOR PS536 SERIES SINGLE OVEN
OPTION - BASE W/15 ″″″″″ LEGS & TOP P/N 34832 ..... 11
PARTS LIST FOR PS536 SERIES DOUBLE OVEN
OPTION - BASE W/6
″″″″″
LEGS,
CASTERS & TOP P/N 34833 .................................... 12
PARTS LIST FOR PS536 SERIES TRIPLE OVEN
OPTION - BASE w/OUTRIGGERS & TOP
P/N 34831 ................................................................... 13
RESTRAINT CABLE INSTALLATION .......................... 16
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS536-SERIES OVENS .................................... 17
CIRCUIT BREAKER ..................................................... 17
ELECTRICAL SPECIFICATIONS ................................. 17
ELECTRICAL RATING ................................................. 17
SUPPLY WIRE .............................................................. 17
SUGGESTED ................................................................ 17
II. VENTILATION GUIDELINES ....................................... 18
VENTILATION HOOD ................................................... 18
VENTILATION CAPTURE TEST ................................... 18
III. ELECTRICAL CONNECTION INFORMATION FOR
PS536-SERIES OVENS. ........................................... 19
IV. ELECTRIC SUPPLY FOR ELECTRIC-HEATED
OVENS ....................................................................... 19
VI. CONVEYOR REAR STOP AND
END STOP INSTALLATION ...................................... 20
SECTION 3 INSTALLATION
I. CONTROL FUNCTIONS ................................................ 21
II. COMPONENT INFORMATION AND LOCATION ......... 22
A. Door Safety Switch .................................................. 22
B. Blower Switch .......................................................... 22
C. Heat Switch .............................................................. 22
D. Temperature Controller .......................................... 22
E. Conveyor ................................................................. 23
MEASURING CONVEYOR SPEED. ............................. 23
III. STEP-BY-STEP OPERATION ..................................... 24
A. Startup Procedures ................................................. 24
TABLE OF CONTENTS
(Continued)
Page
Daily Startup ................................................................. 24
Power Failure ............................................................... 24
B. Shutdown Procedure ............................................... 24
A.Daily Startup Procedure .......................................... 26
IV. NORMAL OPERATION - STEP-BY-STEP .................. 26
V. QUICK REFERENCE: TROUBLESHOOTING ............. 28
SECTION 4 MAINTENANCE
I. MAINTENANCE - DAILY ........................................... 30
A. Exterior .................................................................... 30
B. Cooling Fan .............................................................. 30
C. Conveyor Belt ......................................................... 30
D. Crumb Pans ............................................................ 30
E. Window .................................................................... 30
II. MAINTENANCE - MONTHLY ...................................... 31
A. Removing Conveyor From Oven For Cleaning .... 31
B. Air Fingers Disassembly For Cleaning ................. 33
C. Cleaning the Window .............................................. 34
D. Reassembly of Air Fingers .................................... 34
E. Reinstall End Plugs ................................................. 37
F. Conveyor Reassembly Into Oven .......................... 38
G. Checking Conveyor Belt Tension ......................... 38
H. Conveyor Belt Link Removal ................................ 39
I. Replacing Conveyor Belt ......................................... 40
J. Attaching Drive Chain ............................................ 40
III. MAINTENANCE - EVERY 3 MONTHS ........................ 41
A. Cleaning the Blower/Fan Motor ............................. 41
B. Electrical Terminals ............................................... 42
C. Ventilation ............................................................... 42
D. Checking the Blower/Fan Belt ............................... 42
E. Blower Fan Shaft Bearing Lubrication .................. 43
F. Split-belt Conveyor Shaft Cleaning ........................ 43
IV. MAINTENANCE - EVERY 6 MONTHS .................... 44
PS540-SERIES ELECTRIC OVEN KEY SPARE
PARTS ....................................................................... 46
KEY SPARE PARTS KIT .............................................. 46
SECTION 5 TROUBLESHOOTING
Troubleshooting Charts ..................................................... 47
SECTION 6 - PARTS LIST
OVEN PANELS, WINDOW AND LEGS ............................ 51
CONTROL PANEL ........................................................... 53
BLOWER AND SHROUD ................................................. 55
CONVEYOR ...................................................................... 57
SPLIT BELT CONVEYOR ................................................. 59
MACHINERY COMPARTMENT ....................................... 61
SECTION 7 ELECTRICAL SCHEMATICS
Wiring Diagram, E208-240 50/60, 3PH 4W PS536 ........ 63
Wiring Diagram, E380-480 50/60, 3PH 5W PS536 ........ 64
Wiring Diagram, E380V 50/60, 3PH 5W PS536 .............. 65