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SECTION 4 

MAINTENANCE 

 

31 

SECTION 4 

MAINTENANCE

WARNING 

Before ANY cleaning or servicing of the oven, 
perform the following procedure: 

1.  Switch off the oven and allow it to cool. Do NOT 

service the oven while it is warm. 

2.  Turn off the electric supply circuit breaker(s) 

and disconnect the electric supply to the oven. 

When all cleaning and servicing is complete: 

1.  If the oven was moved for servicing, return the 

oven to its original location. 

2.  If the restraint cable was disconnected to clean 

or service the oven, reconnect it at this time. 

3.  Reconnect the electrical supply. 

4.  Turn on the electric supply circuit breaker(s). 

5.  Perform the normal start-up procedure. 

 

WARNING 

Possibility of injury from rotating parts and 
electrical shock exist in this oven. Switch off 
and lockout/tagout the electric supply BEFORE 
beginning to disassemble, clean, or service any 
oven. Never disassemble or clean an oven with 
the BLOWER switch or any other circuit of 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 use a caustic oven 
cleaner, which can damage the bake chamber 
surfaces. 

NOTICE 

ANY replacement parts that require access to the 
interior of the oven may ONLY be replaced by a 
Middleby Marshall Authorized Service Agent. It is also 
strongly recommended that the 3-Month Maintenance 
and 6-Month Maintenance procedures in this section 
be performed ONLY by a Middleby Marshall 
Authorized Service Agent. 

I.  MAINTENANCE - DAILY 

A. Exterior 

Clean the outside of the oven every day with a soft 
cloth and mild detergent. 

NOTICE 

Never use a water hose or pressurized steam cleaning 
equipment when cleaning the oven. 

B. Cooling Fan 

1.  ONE COOLING FAN GRILLE AT THE REAR OF 

THE OVEN MUST BE CLEANED DAILY - Clean 
grille with a stiff nylon type brush. 

2.  Check the air intake of the cooling fan daily. The 

best time to check is right after starting the oven. 

IMPORTANT 

The cooling fan operates when the blower switch is 
turned to “ON” (“I”). It must operate to keep the 
electrical control cabinet below 140°F (60°C). 

 

NOTICE 

IF FAN BLADE IS NOT ROTATING, BROKEN, OR 
FAN ASSEMBLY IS MISSING FROM MAIN BLOWER 
MOTOR SHAFT, DO NOT OPERATE OVEN. 
REPLACE COOLING FAN BLADE BEFORE 
OPERATING OVEN. Serious damage could be done 
to the blower motor and/or solid-state electrical 
components if oven is operated while cooling fan is not 
running or vent grille is plugged. 

3. Using a stiff nylon brush, clean control 

compartment vent grille. 

 

 Oven Cooling Fans 

 

 

Содержание PS629E Series

Страница 1: ...LATION MANUAL PS629E Series Electric Ovens Model PS629E Combinations Single Oven Double Oven Two Stack Triple Oven Three Stack 2020 Middleby Marshall Inc is a registered trademark of Middleby Marshall...

Страница 2: ...lammable vapors and liquids in the vicinity of this or any other appliance WARNING Improper installation adjustment alteration service or maintenance can cause property damage injury or death Read the...

Страница 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...

Страница 4: ...ller 24 III MEASURING CONVEYOR SPEED 25 IV STEP BY STEP OPERATION 26 A Daily Start up Procedure 26 B Daily Shutdown Procedure 27 C Power Failure 27 V TEMPERATURE CONTROLLER OPERATION 28 A Operation Ad...

Страница 5: ...e ovens A single PS629E Series Oven Figure 1 is mounted on a base pad with 4 102mm legs Stacked ovens are mounted on a base pad and the lower oven is mounted on a base pad with legs All models are ava...

Страница 6: ...trol Circuit Voltage Phase Freq kW Amperage Supply Breakers L1 L2 L3 N 208 240V 208 240 3 50 60 Hz 208 12 35 3 35 3 33 3 3 pole 4 wire 3 hot 1 grd As per local codes 3 50 60 Hz 240 12 30 8 30 8 28 8 3...

Страница 7: ...belt is driven by a variable speed electric motor Figure 5 operating through a gear reducer The motor speed is controlled by a digital control The stainless steel wire belt can travel in either direct...

Страница 8: ...r element mounted on the inside of the rear panel The element is connected to an electrical control which is energized by the temperature controller D Cooling Fan See Figure 6 and Figure 7 The cooling...

Страница 9: ...ng baked 2 Inner Plate The perforated Inner Plate is vital in forming the unique air jets It must be assembled into the manifold with its holes aligned with the holes of the outer plate 3 Manifold The...

Страница 10: ...SECTION 1 DESCRIPTION 10 NOTES...

Страница 11: ...n 12 inches 304mm beyond the equipment on all sides NOTICE For additional installation information contact your local Authorized Service Agent NOTICE There must be adequate clearance between the oven...

Страница 12: ...of the oven must be maintained For servicing and cleaning a minimum of 18 457mm clearance from all walls is recommended I UNLOADING DIMENSIONS AND ROUGH IN Your Middleby Marshall PS629E Series Oven i...

Страница 13: ...Ovens ITEM NO QTY PART NO DESCRIPTION 1 4 3101908 LEG 4 AD FT 2 1 62208 INSULATION BOTTOM TRAY 3 1 62206 BOTTOM TRAY WELDMENT 4 1 61650 TOP COVER 5 4 51387 SCREW MSSLT THREAD 8 32 1 2 18 8 6 1 77154...

Страница 14: ...ITEM NO QTY PART NO DESCRIPTION 1 4 3101908 LEG 4 AD FT 2 2 62208 INSULATION BOTTOM TRAY 3 1 62206 BOTTOM TRAY WELDMENT 4 1 61650 TOP COVER 5 4 51387 SCREW MSSLT THREAD 8 32 1 2 18 8 6 1 77154 OWNER...

Страница 15: ...SECTION 3 OPERATION 15 The Opening Height is Adjustable from 2 1 4 57mm minimum to 3 3 4 95mm maximum in 1 2 13mm increments Model PS629E Single Oven Dimensions...

Страница 16: ...3 OPERATION 16 The Opening Height is Adjustable from 2 1 4 57mm minimum to 3 3 4 95mm maximum in 1 2 13mm increments P N 59227 is shown in its correct installed position Model PS629E Double Oven Dime...

Страница 17: ...OPERATION 17 The Opening Height is Adjustable from from 2 1 4 57mm minimum to 3 3 4 95mm maximum in 1 2 13mm increments P N 59227 is shown in its correct installed position Model PS629E Triple Oven D...

Страница 18: ...SECTION 3 OPERATION 18 Model PS629E Dimensions with Optional Legs Casters...

Страница 19: ...ational Electrical Code current edition and must be in compliance with local codes SUGGESTED If space permits service should be located near the control console end of the oven s to allow convenient a...

Страница 20: ...ation system and electric supply as arranged by the customer Following these connections the factory authorized installer can perform the initial start up of the oven Check the oven data plate Figure...

Страница 21: ...g to enable safe access to the terminal block from which oven power is distributed The supply conductors must be of the size and material copper recommended to provide the current required refer to th...

Страница 22: ...SECTION 3 OPERATION 22 NOTES...

Страница 23: ...urrent is always present B Blower Switch The blower switch must be ON or I for the main blowers to come on and to permit the oven to run The fan circulates the air through the air fingers and must sta...

Страница 24: ...switch which allows the oven to cool down to 200 F 93 C before shutting off the blower An OVER TEMP LED lights if the oven reaches 650 F 343 C Interior View of Control Console E Conveyor Switch and S...

Страница 25: ...igital control NOTE In Figures 22 and 23 the oven shown is with the conveyor running right to left WARNING Possibility of injury from rotating parts and electrical shock Never disassemble or clean the...

Страница 26: ...ns located at the rear of the oven see Figure 7 in Section 1 are operating when the blower switch is turned ON or I The cooling fans cool the control components and blower motor by blowing air into an...

Страница 27: ...art up procedure 8 With the HEAT ON LED lit press the Scroll key one time from the Set Point Only display The actual temperature will appear in the lower display 9 Wait while the actual temperature re...

Страница 28: ...ate Adjusting for F C Press the Up and Down keys together for 3 seconds The units will switch between Fahrenheit and Celsius B Programming Adjustments Adjusting Power Output Press the Star and Up keys...

Страница 29: ...witches are in the ON I position Oven will not heat Controls may be set incorrectly If the oven still will not heat turn the HEAT BLOWER and CONVEYOR switches to the OFF O position Wait for AT LEAST F...

Страница 30: ...SECTION 3 OPERATION 30 NOTES...

Страница 31: ...ch can damage the bake chamber surfaces NOTICE ANY replacement parts that require access to the interior of the oven may ONLY be replaced by a Middleby Marshall Authorized Service Agent It is also str...

Страница 32: ...and Crumb Pan Cleaning II MAINTENANCE MONTHLY NOTE The oven interior may require cleaning more than once a month depending on the volume of baking To clean the interior you have to disassemble some p...

Страница 33: ...ry and exit trays 2 Loosen two wing screws on the upper end plugs and remove the end plugs 3 Remove motor housing guard Figure 28 4 Lift conveyor and remove chain Figure 29 5 Lift other side of convey...

Страница 34: ...e and the outer plate If a blank or choke plate is used mark that plate also Fingers are marked in the order shown as viewed from the front of the oven The marks for an upper oven should be preceded w...

Страница 35: ...4 Gently step on the lip of the finger and pull the outer plate off 5 To remove the inner plate pull the plate out and then up 6 The outer finger plate is stainless and may be cleaned by either soakin...

Страница 36: ...ay because of its design 3 Replace each outer plate by placing your hands flat on the top of the plate and pushing down Keep your fingers clear so you won t pinch them 4 Reinstall the air fingers by p...

Страница 37: ...SECTION 4 MAINTENANCE 37...

Страница 38: ...SECTION 4 MAINTENANCE 38 5 Install fingers and blank plates correctly with edges interlocked and no space between edges Correct Edges Overlap Completely...

Страница 39: ...ber opening The belt should not lift higher than 1 to 2 inches 25 to 50mm Figure 48 2 To loosen the belt tension turn the idler adjustment screws located on the idler end of the conveyor counter clock...

Страница 40: ...links that need replacing and use the section of conveyor belt furnished in your installation kit to replace them NOTE Before connecting the inside master links notice that these links have a correct...

Страница 41: ...th the set screw in the conveyor shaft collar Once in place tighten the 3 32 set screw 2 Lift the conveyor and install the drive chain to the conveyor drive sprocket and motor sprocket 3 The angle pla...

Страница 42: ...control terminal screws including the electrical contactor terminal screws as shown in Figure 58 B Ventilation Check that the air circulation throughout the oven is not blocked and is working properly...

Страница 43: ...Temperature Control On Off 1 2 44914 Solid State Relay 208 240V 1 2 44658 Solid State Relay 380 600V 1 3 74106 Conveyor Motor and Magnet 1 4 72533 Conveyor Speed Control 1 5 33812 9 Thermocouple 3 6...

Страница 44: ...SECTION 4 MAINTENANCE 44...

Страница 45: ...ller to a new setting above 200 F after turning the BLOWER switch to off for 30 seconds Start the oven again If the oven still does not heat call your Middleby Marshall Service Agency CONVEYOR WILL NO...

Страница 46: ...HEAT BLOWER and CONVEYOR switches to the OFF O position Wait for AT LEAST FIVE MINUTES before restarting the oven Repeat the Daily Start up procedure in Section 3 Check that the Set Point is above 200...

Страница 47: ...SECTION 6 ELECTRICAL SCHEMATICS 47 SECTION 6 ELECTRICAL SCHEMATICS Wiring Diagram E208 240V 3PH PS629E 74629 REV F...

Страница 48: ...SECTION 5 TROUBLESHOOTING 48 Wiring Diagram E230V 1PH CE PS629E 74665 REV F...

Страница 49: ...SECTION 6 ELECTRICAL SCHEMATICS 49 Wiring Diagram E380V 3PH PS629E 74667 REV F...

Страница 50: ...SECTION 5 TROUBLESHOOTING 50 Wiring Diagram E380V 3PH CE PS629E 74669 REV F...

Страница 51: ...SECTION 6 ELECTRICAL SCHEMATICS 51...

Страница 52: ...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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