Middleby Marshall PS528-Series OVENS PS528 (Double) - 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 PS528 ELECTRICAL SPECIFICATIONS ..............2
II. COMPONENT FUNCTION .............................................4
A. Conveyor Motor and Conveyor Belt ........................4
B. Blower Fan .................................................................4
C. Electric Heaters .........................................................4
D. Cooling Fan ................................................................4
E. Air Fingers and Blank Plates - See Figure 1-9 ........4
SECTION 2
I. UNLOADING ....................................................................7
PS528 OVEN INSTALLATION
REQUIRED KITS AND EQUIPMENT ...........................8
PARTS LIST FOR SERIES PS528 ELECTRIC OVEN
INSTALLATION KIT ......................................................8
UTILITY ROUGH-IN DIMENSIONS AND POSITIONING
FOR PS528-SERIES OVENS .....................................12
CIRCUIT BREAKER .......................................................12
ELECTRICAL SPECIFICATIONS ...................................12
ELECTRICAL RATING ...................................................12
SUPPLY WIRE ................................................................12
SUGGESTED ..................................................................12
II. VENTILATION GUIDELINES ........................................12
III. ELECTRICAL CONNECTION INFORMATION FOR
PS528-SERIES OVENS. .............................................13
IV. ELECTRIC SUPPLY FOR ELECTRIC-HEATED
OVENS .......................................................................12
SECTION 3 INSTALLATION
I. CONTROL FUNCTIONS .................................................15
II. COMPONENT INFORMATION AND LOCATION .........16
A. Door Safety Switch ..................................................16
B. Blower Switch ..........................................................16
C. Heat Switch ..............................................................16
D. Temperature Controller ............................................16
E. Conveyor .................................................................17
MEASURING CONVEYOR SPEED. ..............................17
III. STEP-BY-STEP OPERATION ......................................18
A. Startup Procedures ..................................................18
Daily Startup ..................................................................18
Power Failure .................................................................18
B. Shutdown Procedure ..............................................18
TABLE OF CONTENTS
(Continued)
Page
IV. NORMAL OPERATION - STEP-BY-STEP ...................... 20
A.Daily Startup Procedure ............................................ 20
B. Daily Shutdown Procedure ..................................... 20
V. QUICK REFERENCE: TROUBLESHOOTING .............. 22
SECTION 4 MAINTENANCE
I. MAINTENANCE - DAILY ............................................. 24
A. Exterior ...................................................................... 24
B. Cooling Fan ............................................................... 24
C. Conveyor Belt ........................................................ 24
D. Crumb Pans ............................................................ 24
II. MAINTENANCE - MONTHLY ....................................... 25
A. Removing Conveyor From Oven For Cleaning .... 25
B. Air Fingers Disassembly For Cleaning .................. 27
C. Reassembly of Air Fingers ...................................... 28
D. Reinstall End Plugs ................................................. 31
E. Conveyor Reassembly Into Oven ........................... 32
F. Checking Conveyor Belt Tension............................ 32
G. Conveyor Belt Link Removal .................................. 33
H. Attaching Drive Chain ............................................. 34
III. MAINTENANCE - EVERY 3 MONTHS ......................... 35
A. Electrical Terminals ................................................. 35
B. Ventilation ................................................................. 35
IV. MAINTENANCE - EVERY 6 MONTHS ......................... 35
PS528-SERIES ELECTRIC OVEN KEY SPARE
PARTS ...................................................................... 36
KEY SPARE PARTS KIT ................................................ 36
SECTION 5 TROUBLESHOOTING
Troubleshooting Charts ...................................................... 37
SECTION 6 - PARTS LIST
SINGLE OVEN EXPLODED VIEW .................................... 41
RELAY PANEL ................................................................... 43
BLOWER ASSEMBLY ....................................................... 45
CONTROL PANEL ............................................................. 47
SINGLE CONVEYOR ......................................................... 49
SECTION 7 ELECTRICAL SCHEMATICS
Wiring Diagram, E208-240V 50/60/1, PS528 ................... 51
Wiring Diagram, E208-240V 50/60/3, PS528 ................... 52
Wiring Diagram, E380-480V 50/60/3, PS528 ................... 53
Wiring Diagram, E380V 50/60/3, CE PS528 ..................... 54