Middleby Marshall PS740 Series Gas Ovens P/N 60250 User Manual

Page 4

P/N 60250 September 28, 2012

NOTE

Wiring Diagrams are in Section 5 of this Manual.

The diagram for each oven is also on the lower

inner surface of its Control Console.

Page

SECTION 1 – DESCRIPTION ............................................ 1

I. OVEN USES ............................................................. 1

II. OVEN COMPONENTS ............................................. 1

A. Conveyor Motor Drive ................................... 1

B. Crumb Pans .................................................. 1

C. Conveyor ....................................................... 1

D. End Plugs ...................................................... 1

E. Eyebrows ....................................................... 1

F. Window .......................................................... 1

G. Machinery Compartment Access Panel ........ 1

H. Serial Plate .................................................... 1

I. Control Panel ................................................. 1

J. Photo Cell ...................................................... 1

K. Gas Burner .................................................... 1

L. Blowers .......................................................... 1

.......................................................Air Fingers

III. OVEN SPECIFICATIONS ......................................... 2

A. Dimensions .................................................... 2

B. General Specifications .................................. 2

C. Electrical Specifications for

PS740 Gas Ovens ......................................... 2

D. Gas Orifice and Pressure Specifications

for PS740 Gas Ovens ................................... 2

SECTION 2 – INSTALLATION .......................................... 3

I. BASE PAD KIT ......................................................... 4

II. INSTALLATION KIT .................................................. 6

III. VENTILATION SYSTEM ........................................ 12

A. Requirements .............................................. 12

B. Recommendations ...................................... 12

C. Other Ventilation Concerns ......................... 12

IV. ASSEMBLY ............................................................ 13

A. Base Pad, Legs, Casters ............................. 13

B. Stacking ....................................................... 14

C. Restraint Cable Installation ......................... 14

D. Conveyor Installation ................................... 15

E. Standoff Installation ..................................... 15

V. FINAL ASSEMBLY ................................................. 16

VI. ELECTRICAL SUPPLY .......................................... 16

Connection ....................................................... 17

VII.

GAS SUPPLY ................................................... 17

A. Gas Utility Rough-In Recommendations ..... 17

B. Connection .................................................. 18

C. Gas Conversion ........................................... 18

D. Propane Conversion .................................... 18

E. Adjusting the Maximum Pressure Setting ... 18

F. Adjusting the Minimum Pressure Setting .... 19

G. Checkout ..................................................... 19

H. Maintenance ................................................ 19

Page

SECTION 3 – OPERATION ............................................. 20

I. LOCATION AND DESCRIPTION OF CONTROLS 20

II. NORMAL OPERATION, STEP-BY-STEP ................ 21

A. Main Screen ................................................ 21

B. Daily Startup Procedure .............................. 21

C. Daily Shutdown Procedure .......................... 21

III. QUICK REFERENCE: TROUBLESHOOTING ....... 22

IV. SCREEN ALERTS .................................................. 22

SECTION 4 – MAINTENANCE ........................................ 23

I. MAINTENANCE – DAILY ....................................... 23

II. MAINTENANCE – MONTHLY ................................ 24

III. MAINTENANCE – EVERY 3 MONTHS .................. 25

IV. MAINTENANCE – EVERY 6 MONTHS ................. 26

V. KEY SPARE PARTS KIT ........................................ 27

SECTION 5 – ELECTRICAL WIRING DIAGRAM ............ 28

I. WIRING DIAGRAM, 740 GAS OVEN, 208/240V,

50/60 Hz, 1 Ph ........................................................ 28

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