MARSAL MB236 Installation & Operating Manual Download Page 1

INSTALLATION & OPERATING MANUAL

Deck Ovens: MB42, MB60, MB236, MB260, SD236, SD248, SD260, SD448, SD660, SD1048, SD1060

FOR YOUR SAFETY

DO NOT STORE OR USE GASOLINE OR OTHER FLAMMABLE VAPORS AND LIQUIDS IN THE 

VICINITY OF THIS OR ANY APPLIANCE.

FOR YOUR SAFETY

POST INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE USER SMELLS GAS IN A 

PROMINENT LOCATION. THIS INFORMATION SHALL BE OBTAINED BY CONSULTING YOUR 

LOCAL GAS SUPPLIER.

THIS MANUAL MUST BE RETAINED FOR FUTURE REFERENCE.

WARNING

ELECTRICAL GROUNDING INSTRUCTIONS

THIS APPLIANCE, WHEN INSTALLED, MUST BE ELECTRICALLY GROUNDED IN ACCORDANCE WITH LOCAL CODES, 

OR IN THE ABSENCE OF LOCAL CODES, WITH THE NATIONAL ELECTRICAL CODE, ANSI/NFPA 70, OR THE CANADIAN 

ELECTRICAL CODE, CSA C22.2 AS APPLICABLE.

THIS APPLIANCE IS EQUIPPED WITH A THREE PRONG (GROUNDING) PLUG FOR YOUR PROTECTION AGAINST SHOCK 

HAZARD  AND  SHOULD  BE  PLUGGED  DIRECTLY  INTO  A  PROPERLY  GROUNDED THREE-PRONG  RECEPTACLE.  DO 

NOT CUT OR REMOVE THE GROUNDING PRONG FROM THIS PLUG.

KEEP THE OVEN AREA FREE AND CLEAR FROM COMBUSTIBLE AND NONCOMBUSTIBLE CONSTRUCTION. DO NOT 

OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR. 

THIS OVEN HAS ZERO CLEARANCE ON BOTH SIDES BUT A 3” - 4” SPACE MUST BE LEFT AT THE REAR TO ALLOW 

ADEQUATE CLEARANCE FOR AIR OPENINGS INTO THE COMBUSTION CHAMBER INSURING PROPER CIRCULATION 

OF AIR INTO THE BURNER SYSTEM.

AN ELECTRICAL DIAGRAM IS LOCATED ON THE INSIDE OF THE CONTROL DOOR ON ALL MB SERIES OVENS. 

Marsal & Sons, Inc.  175 East Hoffman Ave., Lindenhurst, NY 11757

IMPROPER INSTALLATION, ADJUSTMENT, ALTERATION, SERVICE OR MAINTENANCE 

CAN CAUSE PROPERTY DAMAGE, INJURY, OR DEATH. READ THE INSTALLATION, 

OPERATING, AND MAINTENANCE INSTRUCTIONS BEFORE INSTALLING OR SERVICING 

THIS EQUIPMENT.

Summary of Contents for MB236

Page 1: ...CE IS EQUIPPEDWITH ATHREE PRONG GROUNDING PLUG FORYOUR PROTECTION AGAINST SHOCK HAZARD AND SHOULD BE PLUGGED DIRECTLY INTO A PROPERLY GROUNDED THREE PRONG RECEPTACLE DO NOT CUT OR REMOVE THE GROUNDING PRONG FROM THIS PLUG KEEP THE OVEN AREA FREE AND CLEAR FROM COMBUSTIBLE AND NONCOMBUSTIBLE CONSTRUCTION DO NOT OBSTRUCT THE FLOW OF COMBUSTION AND VENTILATION AIR THIS OVEN HAS ZERO CLEARANCE ON BOTH...

Page 2: ...ATIONS 2 DELIVERY 3 OVEN LOCATION 3 ADJUSTMENTS ASSOCIATED WITH INITIAL INSTALLATION 3 ASSEMBLY INSTRUCTIONS 4 VENTILATION CANOPY METHOD 5 VENTILATION DIRECT CONNECTION METHOD 5 VENTILATION PROBLEMS 7 INSTALLATION OF BAKING CHAMBER BRICKS 7 CURING THE OVEN DECK 9 II OPERATING MANUAL STARTING THE OVEN 10 OVEN CONTROL 10 MAINTENANCE 11 CLEANING THE OVEN 11 ...

Page 3: ...n ELECTRICAL CONNECTION A 15 AMP service must be provided for each oven For 115 Volt usage a cord and plug is provided but connection to the electrical service must comply with local codes or in the absence of local codes with the National Electrical Code ANSI NFPA No 70 or latest edition GAS CONNECTION A NPT inlet is located at the rear of the oven Undersized gas supply lines will restrict gas su...

Page 4: ... no strain is placed upon the flexible connector With the restraint fully stretched the connector should be easy to install and quick connect 1 Mount the supplied bracket to the hold located on the rear or base frame on the same side as the gas supply The connector must comply with the Standard Connectors for Movable Gas Appliances ANSI Z21 59 or Connectors For Moveable Gas Appliances CAN CHA 6 16...

Page 5: ...Pilot outages or yellow floating flames on the main burners are indicative of a lack of secondary air Before making any utility connections to this oven check the rating plate to be sure the oven specifications are compatible with the gas and electrical services supplied for the oven The rating plate is located on the inside of the control door ADJUSTMENTS ASSOCIATED WITH INITIAL INSTALLATION Each...

Page 6: ...lts through the back of the base and the back of the body 5 For stackable units place the top oven on the bottom oven and align their front and sides The weight of the unit will keep it in place 6 Connect a gas line to the back of each oven and follow all local gas codes in connecting to the gas supply 7 Plug in the electric plug for the light to an electric power supply For MB Ovens Only 8 Connec...

Page 7: ...erly designed ventilation hood which extends 10 12 in front of the oven The short stainless steel flue that is supplied with the oven must be installed Place the flue over the collar that is located on the top of the oven and press down until it is firmly locked in place The angle should face forward and always away from any filters A strong exhaust fan will create a vacuum in the room For an exha...

Page 8: ...be capped with a UL Listed type vent cap to isolate the unit from external environmental conditions The direct vent cannot replace air consumed and vented by the oven Provisions must be made to supply the room with sufficient make up air Total make up air requirements for each oven section should be approximately 30 CFM per section To increase the supply air entering the room a ventilation expert ...

Page 9: ... must be placed on the right side of the deck oven as shown below MB 60 SD 660 SD 1060 Place the 5 12 x 36 bricks on the sheet metal of the oven deck as shown below FRONT OF OVEN 12 12 12 6 FRONT OF OVEN 12 12 12 12 12 VENTING PROBLEMS Iftheventingofanydeckoveniseitherrestrictedorforcedinanywaythebakingcharacteristics of the oven will be adversely affected Examples of restricted venting include us...

Page 10: ...e the 3 12 x 24 bricks on the sheet metal of the oven deck as shown below SD 248 Place the 4 12 x 24 bricks on the sheet metal of the oven deck as shown below SD 260 Place the 5 12 x 24 bricks on the sheet metal of the oven deck as shown below FRONT OF OVEN 12 12 12 12 12 FRONT OF OVEN 12 12 12 12 FRONT OF OVEN 12 12 12 FRONT OF OVEN 12 12 12 12 8 ...

Page 11: ...rt tracks CURING THE OVEN DECK 1 Sweep off all the debris from the brick deck surface 2 Cure the oven deck slowly by preheating the stones with the pilot burner on for 1 hour Then gradually increase the temperature 100 F per hour from 300 600 F is reached NOTE WHEN LIGHTING THE OVEN FOR THE FIRST TIME AS THE TEMPERATURE INCREASES SMOKE WILL OCCUR FROM THE OVEN BE SURE TO LEAVE THE DOORS CLOSED VEN...

Page 12: ...l Setting the bypass and calibrations and other adjustments are not covered under warranty and are the responsibility of the owner or the dealer who sold or installed the appliance If the oven is supplied on casters and is connected to the supply piping by means of a connector for movable appliances be aware that a restraint must be on the appliance and if disconnection of the restraint is necessa...

Page 13: ...Apply cleaners when the oven is cold and always rub with the grain of the metal Clean the aluminized interior portion of the oven with a mild detergent DO NOT use caustic solutions such as ammonia lye or soda ash DO NOT use domestic oven cleaners Any of these products will damage the aluminum coating DAILY CLEANING Clean brick surfaces using a deck scraper and brush A wet towel draped over the bru...

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