background image

SECTION 3 

OPERATION 

 

34 

V.  QUICK REFERENCE: FAULTS 

Fault messages are only displayed on the main screens of Manual Mode and Preset Mode. If a message is displayed, 

touch the screen to acknowledge the fault. 

MESSAGE DISPLAYED 

EXPLANATION 

CORRECTIVE ACTION 

IO_COMM_LOST* 

IO Communications Fault 
Communication between the User Interface 

and Input/Output (IO) has been interrupted 

for 15 seconds. The oven beeps and 

displays the message. 

Acknowledge the fault. If the fault 

message returns, call for service. 

MC1_COMM_LOST 

Front MC Communications Fault 
Communication between the User Interface 

and Front Motor Control (MC1) has been 

interrupted for 5 seconds. The oven beeps 

and displays the message. 

Acknowledge the fault. If the fault 

message returns, call for service. 

MC2_COMM_LOST 

Rear MC Communications Fault 
Communication between the User Interface 

and Rear Motor Control (MC2) has been 

interrupted for 5 seconds. The oven beeps 

and displays the message. 

Acknowledge the fault. If the fault 

message returns, call for service. 

PROBE_TL_FAULT 
PROBE_TR_FAULT 
PROBE_BL_FAULT 
PROBE_BR_FAULT  

Probe Open: Top Left 
Probe Open: Top Right 
Probe Open: Bottom Left 
Probe Open: Bottom Right 
The temperature in the zone has exceeded 

1400°F (760°C) for more than 5 seconds. 

The oven beeps and displays the message. 

Acknowledge the fault. If the fault 

message returns, call for service. 

FAN_HIGH_CURRENT 
 

High Current: Fan  
The fan current has exceeded the set limit 

for more than 5 seconds. The oven beeps 

and displays the message. 

Acknowledge the fault. If the fault 

message returns, call for service. 

MC1_HIGH_CURRENT 
MC2_HIGH_CURRENT  

High Current: Front MC 
High Current: Rear MC 
The  motor current  has exceeded the set 

limit for more than 5 seconds. The oven 

beeps and displays the message. 

Clear any items jamming the 

conveyor and acknowledge the fault. 

If the fault message returns, call for 

service. 

LIMIT BOARD HIGH TEMP 
 

Limit Board Tripped  
The temperature  at the limit board  has 

exceeded 1075°F (579°C) for more than 5 

seconds. The oven beeps and displays the 

message. 

Acknowledge the fault. If the fault 

message returns, call for service. 

Summary of Contents for CTX DZ26T Domestic

Page 1: ...UAL CTX Electric Ovens DZ33T DZ26T Series Combinations Single Oven Double Oven Two Stack Triple Oven Three Stack 2020 Middleby Marshall Inc is a registered trademark of Middleby Marshall Inc All right...

Page 2: ...r maintenance shall not be made by children without supervision WARNING For your safety do not store or use gasoline or other flammable vapors and liquids in the vicinity of this or any other applianc...

Page 3: ...ial 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...

Page 4: ...S 21 SECTION 3 OPERATION 23 I CONTROL FUNCTIONS 23 II COMPONENT INFORMATION AND LOCATION 23 A Touch Screen Oven Controller 23 B Circuit Breakers 23 C Fan Warning Light 23 D On Off Switch 23 III STEP B...

Page 5: ...triple ovens 15 leg 4 leg and no leg configurations are available CTX Oven Features Electrically powered Zone heated by infrared panels Conveyorized Touch screen controlled CTX Oven Sizes DZ33T 31 78...

Page 6: ...8 5 0 18 0 9 0 9 0 9 0 25 DZ33T 416 3 50 60 7 7 5 0 19 0 10 0 10 0 10 0 25 DZ26T Domestic DZ26T 208 1 50 60 8 0 4 3 38 5 38 5 40 DZ26T 208 3 50 60 8 0 4 3 25 4 25 4 16 6 30 DZ26T 240 1 50 60 8 0 4 3...

Page 7: ...to 900 F 93 C to 509 C Cooking times conveyor speed can be set from 1 00 minute to 60 00 minutes The controller features several modes including Manual Operation Preset Operation Standby Self cleaning...

Page 8: ...ct through the oven deck chamber The conveyor is made up of 1 to 2 stainless steel wire belts which can travel in either direction around the frame The conveyor is controlled by the controller and can...

Page 9: ...E For additional installation information contact your local Authorized Service Agent NOTICE There must be adequate clearance between the oven and combustible construction Clearance must also be provi...

Page 10: ...with carrier within 10 days The carrier will make an inspection and will supply necessary claim forms Be certain to retain all contents plus external and internal packaging crating materials for inspe...

Page 11: ...SECTION 2 INSTALLATION 11 DZ33T Single Oven on a Base...

Page 12: ...SECTION 2 INSTALLATION 12 DZ33T Double Stacked Oven on a Base DZ33T Triple Stacked Oven on a Base...

Page 13: ...SECTION 2 INSTALLATION 13 DZ26T Single Oven on a Base...

Page 14: ...SECTION 2 INSTALLATION 14 DZ26T Double Stacked Oven on a Base DZ26T Triple Stacked Oven on a Base...

Page 15: ...NSUL BASE PART C 3 2 67882 INSUL BASE PART B PARTS LISTED ABOVE ARE FROM 69978 KIT DZ33T INSULATION 4 1 67884 WLDMT BASE DZ33 5 1 67614 PANEL TOP 6 4 66948 ASSY LEG CASTER 7 4 59156 SCR SL TRUSS HD SS...

Page 16: ...art Number Description 1 1 75219 INSUL BASE PART A 2 2 75220 INSUL BASE PART C 3 2 75221 INSUL BASE PART B PARTS LISTED ABOVE ARE FROM 75218 KIT DZ26T INSULATION 4 1 75213 WLDMT BASE DZ33 5 1 73403 PA...

Page 17: ...carton up off the oven 2 Cut the bands holding the oven to the skid 3 Slide the two 10 305cm long 4 by 4 boards through the oven cavity The boards should be sticking out of the oven equally on both s...

Page 18: ...14 NOTICE Lift the oven with the 10 305cm 4 by 4 boards running through the oven only DO NOT lift the oven by the conveyor Damage WILL result 5 With the 4 122cm boards positioned under the 10 305cm b...

Page 19: ...od They are in their lowest position when hanging vertical To raise the curtains to their highest position swing them outward until they are horizontal and then push in toward oven chamber NOTICE Make...

Page 20: ...s If local codes allow we recommend that flexible conduit be used for final connection when the oven assembly is on casters and the use of flexible conduit will allow movement for cleaning SUGGESTED I...

Page 21: ...NOTE The electric supply installation must satisfy the requirements of the appropriate statutory authority such as the National Electrical Code NEC ANSI NFPA70 U S A the Canadian Electrical Code CSA...

Page 22: ...SECTION 2 INSTALLATION 22 NOTES...

Page 23: ...the oven before attempting to clean or service this oven II COMPONENT INFORMATION AND LOCATION See Figure 17 A Touch Screen Oven Controller The touch screen controller controls all functions of the ov...

Page 24: ...nfo 3 Touch the large onscreen on off button The screen shows either the Manual Mode touch screen or the Preset Mode touch screen depending on the mode the oven was in when last turned off See Figure...

Page 25: ...touch the Preset button 5 Touch the preset you want to use That preset becomes highlighted in green and activates Operating in Manual Mode NOTE If the Manual Mode touch screen shows the settings you w...

Page 26: ...screen The cook time is shown onscreen in minutes and seconds for example 6 00 is 6 minutes and zero seconds 8 When the Set Belt Time screen appears enter the new time in minutes and seconds for exam...

Page 27: ...ime Date screen appears 2 To change the time enter a new time for example 1 0 4 2 for 10 42 The new setting appears in the green highlighted area of the Set Time Date screen 3 To change between AM and...

Page 28: ...on With each touch the number on the button increases by 1 A volume setting of 10 is the loudest and the next touch after 10 reaches 0 which is a mute setting Changing Color Scheme You may change the...

Page 29: ...SECTION 3 OPERATION 29 Making Changes to a Preset 1 On the Settings screen touch the Presets button The Preset Change screen appears...

Page 30: ...east To change between capital and lower case letters touch the aAbB button 5 To save the new name touch the OK button on the upper right area of the screen The Preset Change screen reappears with the...

Page 31: ...h the Cook Time or Front Belt button on the screen 11 When the Set Belt Time screen appears enter the new time in minutes and seconds for example 7 0 0 is 7 minutes and zero seconds The new cook time...

Page 32: ...additional energy saving state which reduces the temperature by 25 during times when usage is slower 1 To enter the Standby Mode touch the Setup button 2 When the Passcode screen appears enter the pas...

Page 33: ...or User Interface UI Input Output IO and Motor Control MC software For ovens with split belt operation both Motor Control 1 MC1 and Motor Control 2 MC2 software displays Viewing Information in Preset...

Page 34: ...owledge the fault If the fault message returns call for service PROBE_TL_FAULT PROBE_TR_FAULT PROBE_BL_FAULT PROBE_BR_FAULT Probe Open Top Left Probe Open Top Right Probe Open Bottom Left Probe Open B...

Page 35: ...he fault message returns call for service FAN LOW CURRENT Low Current Fan The fan current has fallen below the set limit for more than 5 seconds The oven beeps and displays the message Acknowledge the...

Page 36: ...idelines RESULTS SOLUTION Outside too dark or burned Reduce Temperatures Outside too light or not cooked Increase Temperatures Inside Overdone or dried out Shorten Cooking Time Inside Underdone or raw...

Page 37: ...SECTION 3 OPERATION 37 Record Time and Temp Table Product Zone Temperatures Cook Time Min Pan Type and Size Amount Weight or Count State Entrance Exit Top Bott Top Bott...

Page 38: ...SECTION 3 OPERATION 38 NOTES...

Page 39: ...ven Never disassemble or clean an oven with the on off switch turned on NOTICE NEVER use a water hose or pressurized steam cleaning equipment when cleaning this oven To avoid saturating the oven insul...

Page 40: ...emove the crumb tray 6 Wipe with a towel with general purpose cleaner and send through dishwasher optional Dry and re install 7 Remove the exit tray wipe with a clean towel with general purpose cleane...

Page 41: ...SECTION 4 MAINTENANCE 41 9 Remove fan filter rinse with cold water and place back on when dry 10 Wipe the top front and sides with a clean towel with general purpose cleaner...

Page 42: ...of operation after the cycle NOTE If you need to cancel the Clean mode touch the Cancel button The cleaning cycle will end and the screen will revert to the previous mode of operation Allow time for...

Page 43: ...EVERY 6 MONTHS A Vent Check Check your venting system NOTICE Installation of replacement parts requiring access to the interior of the oven is permitted only by an authorized service technician If the...

Page 44: ...4 74902 Display NCC Touch Screen 1 1 5 67975 Contactor 4 pole 1 1 6 67857 Solid state relay 2 2 7 45036 3A Circuit breaker 1 1 8 77351 208V Hearth plate 1 0 8 77353 240V Hearth plate 1 1 9 74106 Gear...

Page 45: ...34 1 1 6 67857 Relay 240V 75A Solid State 2 2 7 45036 Breaker Circuit 240V 3A 1 1 8 75269 Assy Plate 2000 208V GRV HRTH 1 8 77183 Assy Plate 2000 240V GRV HRTH 1 1 9 74106 Motor Gear 1 200 25W TELCO...

Page 46: ...SECTION 4 MAINTENANCE 46 NOTES...

Page 47: ...circuit breaker 2 Using Info Mode check settings and actual temperatures for all zones If actual temps are not within 6 F 3 C within 30 minutes call for service Product is not cooking Check cook time...

Page 48: ...SECTION 5 TROUBLESHOOTING 48 NOTES...

Page 49: ...SECTION 6 ELECTRICAL SCHEMATICS 49 SECTION 6 ELECTRICAL SCHEMATICS Wiring Diagram DZ33T E208 240V 3PH 77316 REV B...

Page 50: ...SECTION 6 ELECTRICAL SCHEMATICS 50...

Page 51: ...SECTION 6 ELECTRICAL SCHEMATICS 51...

Page 52: ...SECTION 6 ELECTRICAL SCHEMATICS 52 Wiring Diagram DZ33T 380V 3PH CE 77318 REV B...

Page 53: ...SECTION 6 ELECTRICAL SCHEMATICS 53...

Page 54: ...SECTION 6 ELECTRICAL SCHEMATICS 54 Wiring Diagram DZ33T 230V 1PH CE 77320 REV B...

Page 55: ...SECTION 6 ELECTRICAL SCHEMATICS 55...

Page 56: ...SECTION 6 ELECTRICAL SCHEMATICS 56 Wiring Diagram DZ33T 380 416V 3PH 77322 REV B...

Page 57: ...SECTION 6 ELECTRICAL SCHEMATICS 57...

Page 58: ...SECTION 6 ELECTRICAL SCHEMATICS 58 Wiring Diagram DZ26T 208 240 3PH 75324 REV B...

Page 59: ...SECTION 6 ELECTRICAL SCHEMATICS 59 Wiring Diagram DZ26T 380V 3PH CE 76982 REV B...

Page 60: ...SECTION 6 ELECTRICAL SCHEMATICS 60 Wiring Diagram DZ26T 230V 1PH CE 76983 REV B...

Page 61: ...SECTION 6 ELECTRICAL SCHEMATICS 61 Wiring Diagram DZ26T 380 416V 3PH 76984 REV B...

Page 62: ...ed by parties other 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 manu...

Reviews: