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Blodgett CONVEYOR OVEN MT1820E, Installation Operating & Maintenance Manual

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Blodgett CONVEYOR OVEN MT1820E Installation Operating & Maintenance Manual Download Page 21

Maintenance

17

Troubleshooting Guide

POSSIBLE CAUSE(S)

SUGGESTED REMEDY

SYMPTOM: Oven will not reach desired temperature

S

No power to oven

S

Blower motor(s) not running

S

Defective heating element relay

S

Shorted probe

S

Heating element(s) burned out

S

Internal problem with main temperature controller

S

Cooling fan not working properly

S

Replace main fuses

S

Check control switch and/or fuses

S

*

S

*

S

*

S

*

S

*

SYMPTOM: Conveyor belt will not run

S

Control circuit fuse blown

S

Belt hooked on something in oven

S

Defective conveyor drive motor

S

Defective conveyor drive motor controller

S

Replace fuse

S

Turn oven OFF. Unhook and resolve problem

S

*

S

*

*Denotes remedy is a difficult operation and should be performed by qualified personnel only. It is recommended, however, that

All repairs and/or adjustments be done by your local Blodgett service agency and not by the owner/operator. Blodgett cannot as-

sume responsibility for damage as a result of servicing done by unqualified personnel.

WARNING!!
Always disconnect the power supply before cleaning or servicing the oven.

Summary of Contents for CONVEYOR OVEN MT1820E

Page 1: ...ATION OPERATION MAINTENANCE BLODGETT OVEN COMPANY www blodgettcorp com 50 Lakeside Avenue Box 586 Burlington Vermont 05402 USA Telephone 800 331 5842 802 860 3700 Fax 802 864 0183 PN M7260 Rev D 6 01 E 2000 G S Blodgett Corporation ...

Page 2: ... IN STRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT The information contained in this manual is important for the proper installation use and maintenance of this oven Adherence to these procedures and instructions will result in satisfactory baking results and long trouble free service Please read this manual carefully and retain it for future reference Errors Descriptive typog...

Page 3: ...standard for all kinds of ovens for every foodservice operation regardless of size application or budget In fact no one offers more models sizes and oven applications than Blodgett gas and electric full size half size countertop and deck con vection Cook n Hold Combi Ovens and the industry s highest quality Pizza Oven line For more information on the full line of Blodgett ovens contact your Blodge...

Page 4: ...Your Service Agency s Address Model Serial Number Your oven was installed by Your oven s installation was checked by ...

Page 5: ...ion Delivery and Inspection 4 Oven Location and Ventilation 5 Oven Assembly 6 Utility Connections Standards and Codes 9 Electrical Connection 10 Operation Safety Information 11 Oven Operation 12 Oven Adjustments for Cooking 13 Maintenance Cleaning 14 Component Locations 15 Troubleshooting Guide 16 ...

Page 6: ...within the cooking chamber before being vented from the oven resulting in substantial re ductions in energy consumption a cooler kitchen environment and enhanced oven performance Air Flow Pattern for Blodgett Conveyor Ovens Conveyor Blower Heating Elements Air Plate Air Plate Figure 1 SPECIFICATIONS MT1820E Belt Width 18 46 cm Cooking Zone Length 20 51 cm Baking Area 2 6 Sq Ft 0 24 m2 Dimensions s...

Page 7: ...lt connects the drive motor sprocket to the drive side conveyor belt support sprocket Baking Chamber products pass through the baking chamber on the conveyor belt for cooking Crumb Pan catches crumbs from products on the conveyor Located under conveyor belt at both ends of the baking chamber Air Flow Plates distribute heated air to top of baking chamber Located inside of oven at the top and bottom...

Page 8: ...retained for in spection The Blodgett Oven Company cannot assume responsibility for loss or damage suffered in transit The carrier assumed full responsibility for delivery in good order when the shipment was accepted We are however prepared to assist you if filing a claim is necessary The oven can now be moved to the installation site Check the following list with Figure 2 on page 3 to be sure all...

Page 9: ...be corrected to prevent permanent dam age to the oven All motor bearings are perma nently lubricated by the manufacturer There is no need for additional lubrication during the op erational lifetime of the motors VENTILATION U S and Canadian installations Refer to your local ventilation codes In the ab sence of local codes refer to the National ventila tion code titled Standard for the Installation...

Page 10: ...OVEN STAND WITH CASTERS 1 Attach each leg to the stand frame with a lock washer and nut DO NOT tighten completely 2 Position the shelf between the legs with the smooth surface facing the top of the stand Align the shelf with the holes in each leg At tach the shelf to each leg with a nut and bolt 3 Tighten the bolts installed in step 1 4 Place the oven onto the stand Bolt the oven to the stand from...

Page 11: ...e four holes in the bottom of the oven 2 Attach the heat shield brackets to the bottom of the control box of the upper oven with the screws provided 3 Carefully lift the upper oven off the pallet and place it on the lower oven Be sure the align ment pins are inserted into the holes in the top of the lower oven 4 Slide the heat shield into the brackets Heat Shield Brackets Top Oven Heat Shield Stac...

Page 12: ...nveyor assembly See Figure 7 Pull the conveyor assembly back to tighten the belt Figure 6 Figure 7 Unless specified otherwise conveyor travel is fac tory set for left to right operation when facing the front of the oven To reverse the direction of the drive motor if necessary exchange A1 and A2 WARNING Disconnect the power supply before re versing the drive motor CRUMB PANS 1 Install the crumb pan...

Page 13: ...ust be experi enced in such work familiar with all precautions required and have complied with all requirements of state or local authorities having jurisdiction U S and Canadian installations All ovens 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 Latest Edition and or Cana dian National ...

Page 14: ... three phase The single phase oven is equipped for operation on 220 230 or 240 VAC 50HZ 2 wire grounded circuits The three phase units are equipped for operation on 400 VAC 50HZ 4 wire grounded circuits Wiring from the power source to any of these units must be a minimum of 10 AWG 5 26 mm2 copper stranded wire or larger WARNING Incorrect single phase wiring will result in extensive damage to elect...

Page 15: ...MENDED HEREIN WILL ASSURE THE ACHIEVEMENT OF OPTIMUM PERFORMANCE AND LONG TROUBLE FREE SERVICE Please take the time to read the following safety and operating instructions They are the key to the successful operation of your Blodgett conveyor oven SAFETY TIPS For your safety read before operating General safety tips D If the oven needs to be moved for any reason the supply cord must be disconnecte...

Page 16: ...re The HEAT INDICATOR light 2 cycles on and off with the demand for heat 3 Press and hold the arrow keys on the COOK TIME CONTROL 4 to set the desired cook time Use the up arrow key to increase the time and the down arrow key to decrease the time The cook time range for this unit is 1 12 minutes Oven Shut Down 1 Turn the ON OFF switch 1 to OFF The blower motors and cooling fans will run for 45 min...

Page 17: ...mall changes for each trial and keep one variable constant For example if the oven temperature is 460_F 238_C and the belt speed is 7 minutes but the pizza is not browned enough increase the temperature to 475_F 246_C and keep the belt speed the same However if the center of the pizza is not completely cooked keep the oven tempera ture the same and increase the bake time to 7 minutes and 30 second...

Page 18: ...ove the air plates as follows a Remove the panel over the conveyor tun nel on the exit end of the oven b Slide the upper and lower air plates out of the oven Figure 11 3 Clean the conveyor assembly air plates and oven interior with an appropriate oven cleaner safe for aluminum 4 Reinstall the air plates and conveyor assembly NOTE The air plate marked TOP must be placed above the conveyor assembly ...

Page 19: ...Drive Belt S S Relay Conveyor Motor Figure 12 Fuses Power Supply Connection High Limit Reset Button Cooling Fans Maintenance 15 Component Locations ...

Page 20: ...Short in probe S Reinstall S S S SYMPTOM Elements will not heat S Power switch turned OFF S Main temperature controller not set above ambient temperature S Defective main temperature controller S Defective heating relay S Turn to ON position S Set to desired temperature S S Denotes remedy is a difficult operation and should be performed by qualified personnel only It is recommended however that Al...

Page 21: ...l not run S Control circuit fuse blown S Belt hooked on something in oven S Defective conveyor drive motor S Defective conveyor drive motor controller S Replace fuse S Turn oven OFF Unhook and resolve problem S S Denotes remedy is a difficult operation and should be performed by qualified personnel only It is recommended however that All repairs and or adjustments be done by your local Blodgett se...

Page 22: ...CUSTOMER INSERT WIRING DIAGRAM HERE ...

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