Middleby Marshall X55G Series Owner'S Operating & Installation Manual Download Page 1

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P/N 77538 rev B

A MIDDLEBY COMPANY

OWNER’S

OPERATING

& INSTALLATION

MANUAL

X70G/X55G-Series Gas Ovens

Models X70G & X55G

Combinations:

•

Single Oven

•

Double Oven (Two-Stack)

•

Triple Oven (Three-Stack)

X70G/X55G-Series Gas Ovens: English

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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