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Model No. _________________________ Serial No. _________________________ Installation Date____________________ 

 

MIDDLEBY MARSHALL 

NO QUIBBLE LIMITED WARRANTY 

(U.S.A. ONLY) 

MIDDLEBY MARSHALL HEREINAFTER REFERRED TO AS “THE 

SELLER”, WARRANTS EQUIPMENT MANUFACTURED BY IT TO 

BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP 

FOR WHICH IT IS RESPONSIBLE. THE SELLER’S OBLIGATION 

UNDER THIS WARRANTY SHALL BE LIMITED TO REPLACING 

OR REPAIRING AT SELLER’S OPTION, WITHOUT CHARGE, 

ANY PART FOUND TO BE DEFECTIVE AND ANY LABOR AND 

MATERIAL EXPENSE INCURRED BY SELLER IN REPAIRING OR 

REPLACING SUCH PART. SUCH WARRANTY SHALL BE 

LIMITED TO THE ORIGINAL PURCHASER ONLY AND SHALL BE 

EFFECTIVE FOR A PERIOD OF ONE YEAR FROM DATE OF 

ORIGINAL INSTALLATION OR 18 MONTHS FROM DATE OF 

PURCHASE, WHICHEVER IS EARLIER, PROVIDED THAT 

TERMS OF PAYMENT HAVE BEEN FULLY MET. 

This warranty is valid only if the equipment is installed, started, and 

demonstrated under the supervision of a factory-authorized installer. 

Abuse, acts of God, belt jams, cleaning, customer abuse, insufficient 

utilities, lubrication, maintenance, non-oven related issues, 

preventative maintenance, or normal maintenance function 

including adjustment of airflow, burners, conveyor components, 

door mechanisms, microswitches, pilot burners, thermostats, and 

replacement of bushings, light bulbs, fuses, indicating lights,  and 

wear points, are not covered by this 

no quibble warranty

Seller shall be responsible only for repairs or replacements of 

defective parts performed by Seller’s authorized service personnel. 

Authorized service agencies are located in principal cities 

throughout the contiguous United States, Alaska, and Hawaii. This 

warranty is valid in the 50 United States and is void elsewhere 

unless the product is purchased through Middleby International with 

warranty included. 

The foregoing warranty is exclusive and in lieu of all other 

warranties, expressed or implied. There are no  implied 

warranties of merchantability or of fitness for a particular 

purpose. 

The foregoing shall be the Seller’s sole and exclusive obligation and 

Buyer’s sole and exclusive remedy for any action, including breach 

of contract or negligence. In no event shall Seller be liable for a sum 

in excess of the purchase price of the item. Seller shall not be liable 

for any prospective or lost profits of the buyer. 

This warranty is effective on Middleby Marshall equipment sold 

on, or after January 1st, 2007. 

© 2019 - Middleby Marshall, A Middleby Company. 

MIDDLEBY MARSHALL 

OVEN LIMITED WARRANTY 

(Non U.S.A.) 

The Seller warrants equipment manufactured by it to be free from 

defects in material and workmanship for which it is responsible. The 

Seller’s obligation under this warranty shall be limited to replacing 

or repairing, at Seller’s option, without charge, F.O.B. Seller’s 

factory, any part found defective and any labor and material 

expense incurred by Seller in repairing or replacing such part. Such 

warranty is limited to a period of one year from the date of original 

installation or 15 months from date of shipment from Seller’s factory, 

whichever is earlier, provided that terms of payment have been fully 

met. All labor shall be performed during regular working hours. 

Overtime premium will be charged to the Buyer. 

This warranty is not valid unless equipment is installed, 

started, and demonstrated under the supervision of a factory-

authorized installer. 

Normal maintenance functions including lubrication, adjustment of 

airflow, thermostats, door mechanisms, microswitches, burners and 

pilot burners, and replacement of light bulbs, fuses, and indicating 

lights, are not covered by warranty. 

Any repair or replacement of defective parts shall be performed by 

Seller’s authorized service personnel. Seller shall not be responsible 

for any costs incurred if the work is performed by anyone other than 

the Seller’s authorized service personnel. 

When returning any part under warranty, the part must be intact and 

complete, without evidence of misuse or abuse, freight prepaid. 

Seller shall not be liable for any consequential damages of any kind 

which occur during the course of installation of equipment, or which 

result from the use or misuse by Buyer, its employees or others of 

the equipment supplied hereunder. Buyer’s sole and exclusive 

remedy against Seller for any breach of the foregoing warranty or 

otherwise shall be for the repair or replacement of the equipment or 

parts thereof affected by such breach. 

The foregoing warranty shall be valid and binding upon Seller if and 

only if Buyer loads, operates, and maintains the equipment supplied 

hereunder in accordance with the instruction manual provided to 

Buyer. Seller does not guarantee the process of manufacture by 

Buyer or quality of product to be produced by the equipment 

supplied hereunder and Seller shall not be liable for any prospective 

or lost profits of Buyer. 

The foregoing shall be Seller’s sole and exclusive obligation and 

Buyer’s sole and exclusive remedy for any action, whether in breach 

of contract or negligence. In no event shall Seller be liable for a sum 

in excess of the purchase price of the item. 

THE FOREGOING WARRANTY IS EXCLUSIVE AND IN LIEU OF 

ALL  OTHER  EXPRESS AND IMPLIED WARRANTIES 

WHATSOEVER.  SPECIFICALLY THERE ARE NO IMPLIED 

WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A 

PARTICULAR PURPOSE. 

 

Middleby Cooking Systems Group ●

 

1400 Toastmaster Drive ●

 

Elgin, IL 60120 ●

 

(847) 741-3300 ●

 

FAX (847) 429-7508 

 

Summary of Contents for X55G Series

Page 1: ...LATION MANUAL X70G X55G Series Gas Ovens Models X70G X55G Combinations Single Oven Double Oven Two Stack Triple Oven Three Stack 2021 Middleby Marshall Inc is a registered trademark of Middleby Marsha...

Page 2: ...ion RETAIN THIS MANUAL FOR FUTURE REFERENCE WARNING In a prominent location post the emergency telephone number of your local gas supplier and instructions to be followed in the event you smell gas In...

Page 3: ...erial and workmanship for which it is responsible The Seller s obligation under this warranty shall be limited to replacing or repairing at Seller s option without charge F O B Seller s factory any pa...

Page 4: ...yor Installation 22 E Final Assembly 23 F Conveyor Belt Reversal 23 IV ELECTRICAL CONNECTION 24 V GAS CONNECTION 24 A Gas Conversion 25 B X70G X55G Propane Conversion Kit 77601 25 SECTION 3 OPERATION...

Page 5: ...his patented system complements customers unique products especially fresh dough product providing continuous proofing and dough development throughout the baking cycle The X70G X55G Series gas ovens...

Page 6: ...ings shown above are maximum values for normal operation amperage draw will be less than the listed value NOTE Each oven includes a 6 ft cord with NEMA L6 20P plug Customer to provide NEMA L6 20R rece...

Page 7: ...od product through the oven F Crumb Pans Catches crumbs and other materials that drop through the conveyor belt s One crumb pan is located at each end of the lower unit s conveyor belt G High Limit Re...

Page 8: ...SECTION 1 DESCRIPTION 8 NOTES...

Page 9: ...Service Agent NOTICE There must be adequate clearance between the oven and combustible construction Clearance must also be provided for servicing and for proper operation IMPORTANT An electrical wiri...

Page 10: ...Single or Double Oven Option Base w 15 Legs Casters Top Kit P N 76771 for X70G P N 77086 for X55G Single or Double Oven Option Base w 10 Legs Casters Top Kit P N 77609 for X70G P N 77613 for X55G Tri...

Page 11: ...ORNER BRACE with SCREWS 3 4 61828 15 LEG WELDMENT 4 4 74319 6 CASTER with BRAKE 4 WHEEL 5 4 22450 0028 6 ADJUSTABLE LEVELING LEG with 3 4 STUD 6 16 21416 0003 WASHER FLAT 1 2 SS 7 16 2001045 SCREW CAP...

Page 12: ...7492 COVER ASSEMBLY CORNER BRACE 4 4 61828 15 LEG WELDMENT 5 4 74319 CASTER STUD with BRAKE 4 WHEEL 6 4 22450 0028 6 ADJUSTABLE LEVELING LEG with 3 4 STUD 7 16 21416 0003 WASHER FLAT 1 2 SS 8 16 20010...

Page 13: ...BLY CORNER BRACE 3 4 70049 10 LEG WELDMENT PS360G 4 4 74319 CASTER with BRAKE 4 WHEEL 5 4 22450 0028 6 ADJUSTABLE LEVELING LEG with 3 4 STUD 6 16 21416 0003 WASHER FLAT 1 2 SS 7 16 2001045 SCREWS CAP...

Page 14: ...92 COVER ASSEMBLY TOP CORNER BRACE 4 4 70049 10 LEG WELDMENT PS360G 5 4 74319 CASTER with BRAKE 4 WHEEL 6 4 22450 0028 6 ADJUSTABLE LEVELING LEG with 3 4 STUD 7 16 21416 0003 WASHER FLAT 1 2 SS 8 16 2...

Page 15: ...E ASSEMBLY X70 Series 2 1 77470 COVER TOP ASSEMBLY CORNER BRACE 3 4 70060 LEVELING CASTER 1650 LBS 4 16 21416 0003 WASHER FLAT 1 2 SS 5 16 2001045 SCREWS CAP HX HD 1 2 13X1 ZP 6 16 21426 0004 WASHER L...

Page 16: ...EVICE 2 1 77088 BASE ASSEMBLY X55 Series 3 1 77492 COVER TOP ASSEMBLY CORNER BRACE 4 4 70060 LEVELING CASTER 1650 LBS 5 16 A27721 WASHER LOCK 3 8 6 16 220373 SCREWS CAP HX HD 3 8 16X1 18 8 7 16 21416...

Page 17: ...The location of the serial plate is shown in Figure 4 in Section 1 A fused disconnect switch or a main circuit breaker customer furnished MUST be installed in the electric supply line for each oven c...

Page 18: ...m specifications are STRONGLY RECOMMENDED Deviating from these recommendations may affect the baking performance of the oven Gas Meter One or two cavities 750 cfh meter Three oven cavities 1200 cfh me...

Page 19: ...ht back to replenish the air that was exhausted A negative pressure in the kitchen can cause heat related problems to the oven components as if there were no ventilation at all The best method of supp...

Page 20: ...oven from moving too far when installed on casters Leg Extension and Caster Installation 2 Install one caster and one adjustable 6 leg onto each leg extension and tighten securely in place 3 Orient th...

Page 21: ...top oven cavity DO NOT stack X70G X55G ovens between PS770 PS570 oven units 3 Install the top panel using the screws included in the kit as shown in Figure 17 and Figure 18 Stacking Order C Restraint...

Page 22: ...belt by pulling it for about 2 to 3 feet 0 6 to 1 0m with your fingers The drive and idler shafts must rotate smoothly and the belt must move freely without rubbing on the inside of the oven 4 Check...

Page 23: ...oks along the sides of the other conveyor links See Figure 23 Install the conveyor into the oven See steps 1 4 Conveyor and Master Link Orientation E Final Assembly 1 Install the crumb trays underneat...

Page 24: ...as indicated on the wiring diagram Power connections are located under access cover NOTICE The terms of the oven s warranty require all start ups conversions and service work to be performed by a Mid...

Page 25: ...erformed by a Middleby Authorized Service Agent B X70G X55G Propane Conversion Kit 77601 Three 3 tasks must be performed to change the oven to operate on Liquid Propane gas Replace main orifices Figur...

Page 26: ...SECTION 2 INSTALLATION 26 Gas Train and Burner Assembly...

Page 27: ...ck press brings oven to active ON mode Pressing and holding will put oven into OFF mode If the temperature is over 200 F the blowers will remain on until the oven temperature drops below 200 F TEMPERA...

Page 28: ...ers will begin and the blower proving switches will engage permitting the heat circuit relay to engage The gas ignition dual module will begin its cycle and ignite the dual power burners B Adjusting t...

Page 29: ...nute period after which the screen backlight will shut off The oven will stay in this condition until it is started again with no outputs energized III PROGRAMMING INSTRUCTIONS MANAGERS MODE A Changin...

Page 30: ...needed to maintain temperature instead of cycling a gas valve on and off This is a most efficient and accurate way of controlling the temperature and eliminates the heat losses associated with the ON...

Page 31: ...the oven switched on NOTICE NEVER use a water hose or pressurized steam cleaning equipment when cleaning this oven To avoid saturating the oven insulation DO NOT use excessive amounts of water DO NOT...

Page 32: ...yor slightly 1 and push it forward into the oven 2 This removes the tension from the drive chain inset Remove the drive chain from the conveyor sprocket 6 Slide the conveyor out of the oven folding it...

Page 33: ...shown in Figure 29 AS EACH FINGER IS DISASSEMBLED WRITE THE LOCATION CODE FOR THE FINGER ON ALL THREE OF ITS PIECES This will help you in correctly reassembling the air fingers Disassembling the Air...

Page 34: ...e master links from each conveyor belt Then roll the belts up along the length of the conveyor to remove them from the frame Remove the two conveyor adjustment screws from the idler end of the conveyo...

Page 35: ...ve chain Install the chain cover Check the tension of the conveyor belt as shown in Figure 23 in Section 2 Installation The belt should lift about 3 and 4 76 101mm If necessary adjust the belt tension...

Page 36: ...r 1 HP Havantic 1 7 54727 Dual Ignition Module 1 8 59450 Modulating Gas Valve 1 9 76986 Hi Limit Thermostat 1 10 32108 Transformer 240 primary 24 secondary 1 11a b 73057 Main I O Board and Digital Dis...

Page 37: ...SECTION 4 MAINTENANCE 37...

Page 38: ...SECTION 4 MAINTENANCE 38 NOTES...

Page 39: ...t screws Conveyor not moving 1 Something has jammed the conveyor 2 Circuit breaker behind control panel has tripped 3 Chain sprocket or set screw has come loose 1 Turn power off Locate and remove jamm...

Page 40: ...nter key Unplug oven and plug in again Restart oven If unsuccessful call service for immediate repair HEATING ERROR shown on display and audible alarm sounds The oven has failed to preheat in the expe...

Page 41: ...SECTION 6 ELECTRICAL SCHEMATICS 41 SECTION 6 ELECTRICAL SCHEMATICS Wiring Diagram G208 240 AC 50 60 Hz X70 76914 REV C...

Page 42: ...SECTION 6 ELECTRICAL SCHEMATICS 42...

Page 43: ...SECTION 6 ELECTRICAL SCHEMATICS 43 Wiring Diagram G208 240 AC 50 60 Hz X55 77605 REV B...

Page 44: ...SECTION 6 ELECTRICAL SCHEMATICS 44...

Page 45: ...SECTION 6 ELECTRICAL SCHEMATICS 45 NOTES...

Page 46: ...er than your Middleby Marshall Authorized Service Agent may void your warranty NOTICE Using any parts other than genuine Middleby Marshall factory manufactured parts relieves the manufacturer of all w...

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