Middleby Marshall PS629G Series, Owner'S Operating & Installation Manual

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Table of Contents
SECTION 1 DESCRIPTION ............................................... 5
I. MODEL IDENTIFICATION ...................................... 5
II. PS629G SERIES SPECIFICATIONS ...................... 6
III. COMPONENT FUNCTION ...................................... 7
A. Conveyor Motor and Conveyor Belt ................. 7
B. Blower Fan .......................................................... 8
C. Gas Burner .......................................................... 8
D. Cooling Fan ........................................................ 8
E. Air Fingers and Blank Plates ............................. 9
SECTION 2 INSTALLATION ........................................... 11
I. UNLOADING, DIMENSIONS, AND ROUGH-IN .... 12
II. VENTILATION GUIDELINES ................................ 18
III. ELECTRICAL CONNECTION INFORMATION
FOR PS629G-SERIES OVENS ............................. 19
IV. ELECTRIC SUPPLY FOR GAS HEATED OVENS 20
V. GAS SUPPLY ........................................................ 20
A. Gas Utility Rough-In Recommendations ........ 20
B. Gas Conversion ................................................ 20
C. PS629G Propane Conversion .......................... 20
D. Adjusting the Maximum Pressure Setting ..... 21
E. Adjusting the Minimum Pressure Setting ...... 21
F. Checkout ........................................................... 22
G. Maintenance ..................................................... 22
H. Connection ....................................................... 22
SECTION 3 OPERATION ................................................ 25
I. CONTROL FUNCTIONS ....................................... 25
II. COMPONENT INFORMATION AND LOCATION . 25
A. Door Safety Switch ........................................... 25
B. Blower Switch ................................................... 25
C. Heat Switch ....................................................... 25
D. Temperature Controller ................................... 25
E. Conveyor Switch and Speed Controller ......... 26
III. MEASURING CONVEYOR SPEED ....................... 27
IV. STEP-BY-STEP OPERATION ............................... 28
A. Daily Start-up Procedure .................................. 28
B. Daily Shutdown Procedure .............................. 29
C. Power Failure .................................................... 29
V. TEMPERATURE CONTROLLER OPERATION .... 30
A. Operation Adjustments .................................... 30
B. Programming Adjustments .............................. 30
SECTION 4 MAINTENANCE ............................................ 33
I. MAINTENANCE - DAILY ....................................... 33
A. Exterior .............................................................. 33
B. Cooling Fan ....................................................... 33
C. Conveyor Belt (Figure 29) ................................ 33
D. Crumb Pans (Figure 29) ................................... 34
II. MAINTENANCE - MONTHLY ................................ 34
A. Removing Conveyor from Oven and
Cleaning ............................................................ 35
B. Air Fingers Disassembly and Cleaning .......... 36
C. Reassembly of Air Fingers .............................. 38
D. Conveyor Reassembly Into Oven .................... 41
E. Checking Conveyor Belt Tension .................... 41
F. Conveyor Belt Link Removal ........................... 41
G. Attaching Drive Chain ...................................... 43
III. MAINTENANCE - EVERY 3 MONTHS .................. 44
A. Electrical Terminals .......................................... 44
B. Ventilation ......................................................... 44
IV. MAINTENANCE - EVERY 6 MONTHS .................. 44
A. Oven Vent Check .............................................. 44
B. Burner Inspection ............................................. 44
V. KEY SPARE PARTS KIT P/N 77110 ..................... 45
SECTION 5 TROUBLESHOOTING .................................. 47
SECTION 6 ELECTRICAL SCHEMATICS ....................... 51