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Inc.

Middleby

Marshall

A MIDDLEBY COMPANY

PS520-Series Gas Ovens: English

October 17, 2006

owner's
operating

& installation

manual

PS520-Series OVENS

Model PS520G

PS520 (Triple)

PS520 (Double)

Part No. 59223

Price $30.00

P: 10/06

PS520 (Single)

Содержание PS520 Series

Страница 1: ...by Middleby Marshall Marshall Marshall Marshall Marshall AMIDDLEBYCOMPANY PS520 Series Gas Ovens English October 17 2006 owner s operating installation manual PS520 Series OVENS Model PS520G PS520 Triple PS520 Double Part No 59223 Price 30 00 P 10 06 PS520 Single ...

Страница 2: ...llation Manual should be given to the user The operator of the oven should be familiar with the functions and operation of the oven This manual must be kept in a prominent easily reachable location near the oven Ovens are shipped from the factory configured for use with natural gas If permitted by local national and international codes at the time of installation the oven may be converted to propa...

Страница 3: ...ECIFICALLY THERE ARE NO IMPLIED WARRANTIES OF MERCHANTABILITY OR OF FITNESS FOR A PARTICULAR PURPOSE 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 Model No Modéle No Serial No Serié No Installation ...

Страница 4: ...8 B Blower Switch 18 C Heat Switch 18 D Temperature Controller 18 E Conveyor 19 MEASURING CONVEYOR SPEED 19 TABLEOFCONTENTS Continued Page III STEP BY STEPOPERATION 20 A Startup Procedures 20 Daily Startup 20 Power Failure 20 B Shutdown Procedure 20 IV NORMAL OPERATION STEP BY STEP 22 A Daily Startup Procedure 22 B Daily Shutdown Procedure 22 V QUICK REFERENCE TROUBLESHOOTING 24 SECTION 4 MAINTENA...

Страница 5: ...Figure 1 2 consists of two stacked single ovens A triple oven Figure 1 3 consists of three stacked single ovens The lower oven is mounted on a base pad with stacking pins On a double or triple oven the ovens operate indepen dently All ovens use identical controls and components Oneovencanbecleanedorserviced whiletheothersare operating SECTION 1 DESCRIPTION Figure 1 1 Single PS520 Oven Figure 1 2 D...

Страница 6: ... PT ES SE Main UK CH IT AT SE CH AT DK BE IE IT PT Orifice Rated Gas Orifice DK FI DE BE FR FI DE NL ES UK Manifold Heat Type dia I2H I2E I2E I3B P I3 Pressure Input G20 2 3749 20 20 20 11 21 22 36 mm mbar mbar mbar mbar kW hr G25 2 3749 16 19 22 36 mm mbar kW hr G30 1 3970 29 or 50 28 30 37 26 2 22 59 mm mbar or 50 mbar mbar kW hr GASORIFICEANDPRESSURESPECIFICATIONS PEROVENCAVITY DOMESTICANDSTAND...

Страница 7: ...SECTION 1 DESCRIPTION 3 II COMPONENT FUNCTION Figure 1 4 Figure 1 4 PS520 Series Oven Components Locations ...

Страница 8: ...the temperature controller D Cooling Fan See Figure 1 5 and Figure 1 6 The cooling fan is located in the back of the oven The cooling fan draws air through its grille blowing it through the blower motor compartment and the control compart ments into the oven top and exhausted out the front louvers E Air Fingers and Blank Plates See Figure 1 7 E1 Air Fingers An Air Finger Assembly is made up of thr...

Страница 9: ...SECTION 1 DESCRIPTION 5 Figure 1 6 Cooling Fan ...

Страница 10: ...Blank Plate Outer Plate Inner Plate Finger Manifold Assembly Baffle Figure 1 7 Blank Plates two sizes and an Air Finger F2 Blank Plates 1 Blank Plates The Blank Plates are available to install on the plenum where an air finger is not required ...

Страница 11: ...ust conform with local codes In the absence of local codes gas oven installations must conform with the Natural Gas Installation Code CAN CGA B149 1 or the Propane Gas Installation Code CAN CGA B149 2 as applicable Installed ovens must be electrically grounded in accordance with local codes or in the absence of local codes with the Canadian Electrical Code CSA C22 2 NOTE In the USA the oven instal...

Страница 12: ...vicing and for operation CAUTION Itisrecommendedthattheovenbeplacedunder a ventilation hood for adequate air supply and ventilation CAUTION Do not obstruct the flow of ventilation air to and from your oven Do not obstruct the fan holes in the rear of the unit I UNLOADING Your Middleby Marshall PS520 Series Oven is shipped partially assembled It will arrive in a carton on a crate Carton size for a ...

Страница 13: ...2450 0228 GAS HOSE RESTRAINT CABLE 8 3 22361 0001 GAS HOSE PARTS LIST FOR SERIES PS520 Gas OVEN INSTALLATION KIT Triple Stack Oven P N 59184 7 8 ITEM NO QTY PART NO DESCRIPTION 1 2 48392 INSULATION BOTTOM TRAY 2 1 48394 BOTTOM TRAY WELDMENT 3 1 48396 TOP COVER 4 4 51387 SCREW MSSLT THREAD 8 32 1 2 18 8 5 4 3101908 LEG 4 AD FT 6 1 59223 OWNER S OPERATING INSTALLATION MANUAL 7 1 22450 0228 GAS HOSE ...

Страница 14: ...10 SECTION 2 INSTALLATION 4 00 101 6mm Figure 2 5 MODEL PS520 SINGLE OVEN DIMENSIONS The Opening Height is Adjustable from 2 1 4 inch minimum to 3 3 4 inch maximum in 1 2 inch increments 1 1 ...

Страница 15: ... 11 Figure 2 6 MODEL PS520 DOUBLE OVEN DIMENSIONS 4 00 101 6mm 1 The Opening Height is Adjustable from 2 1 4 inch minimum to 3 3 4 inch maximum in 1 2 inch increments P N 59927 is shown in its correct installed position 1 2 ...

Страница 16: ...NSTALLATION Figure 2 7 MODEL 520 TRIPLE OVEN DIMENSIONS 1 The Opening Height is Adjustable from 2 1 4 inch minimum to 3 3 4 inch maximum in 1 2 inch increments P N 59927 is shown in its correct installed position 1 2 ...

Страница 17: ...RATING 40 000 BTU hr 11 7 kW hr SUPPLY WIRE Supply wire size must be in accordance with the National Electrical Code current edition and must be in compli ance with local codes SUGGESTED If space permits service should be located near the control console end of the oven s to allow convenient access to safety switches CAUTION UNIT MUST HAVE AIR VENT PLATES IN STALLED OR WARRANTY WILL BE VOID II VEN...

Страница 18: ...NSI NFPA70 U S A the Canadian Electrical Code CSA C22 2 the Australian Code AG601 or other applicable regulations A fused disconnect switch or a main circuit breaker customer furnished MUST be installed in the electric supply line for each oven it is recommended that this switch circuitbreakerhavelockout tagoutcapability The electricsupplyconnectionmustmeetallnationalandlocal electricalcoderequire...

Страница 19: ...sions and service work to be performed by a Middleby Marshall AuthorizedServiceAgent Theinstallation start upandchanges required when changing from one gas type to another can be performed ONLY by a certified professional NOTE Certain safety code requirements exist for the installation of gas ovens refer to the beginning of Section 2 for a list of the installation standards In addition In the USA ...

Страница 20: ...e 3 Depressthesafetyswitchestoallowtheoventooperate 4 Open the main gas supply valve Switch the circuit breaker fused disconnect to the ON I position 5 Start the oven according the directions in the Operation sectionofthisManual Adjustthetemperaturecontroller to the maximum setting 316 C 6 Adjust the pressure adjustment screw as necessary to match the correct pressure for the oven s specific gas t...

Страница 21: ...g parts and electric shock exists in this oven Never disassemble or clean the oven with the BLOWER switch or any other oven control turned ON or I Turn OFF or O and lockout or tagout all electric power to the oven before attempting to clean or service this oven Figure 3 1 PS520 Series Oven Control Functions ...

Страница 22: ... bearings a thermostatic override is built into the oven If the temperature inside the oven is over 180 F 82 C the main blower will continue to run after the blower switch is turned to the OFF or O position C Heat Switch The HeatSwitch allowstheburnertoactivate Activation is determined by the settings on the Digital Temperature Controller D TemperatureController The temperature controller is a sol...

Страница 23: ...ding edge of the item to go from the entrance end of the baking chamber to the exit end This should be the conveyor speed shown on the conveyor speed digital control NOTE In Figures 3 4 and 3 5 the oven shown is with the conveyor running right to left WARNING Possibility of injury from rotating parts and electrical shock exist in this oven Never disassemble or clean the oven with the blower switch...

Страница 24: ...elow 140 F 60 C 3 TurntheCONVEYORswitch Figure3 6 tothe ON or I position This starts the conveyor belt moving through the oven Set the conveyor speed for the desired baking time Refer to the following Procedures E F and G 4 Set the temperature controller to the desired baking temperature NOTE For complete temperature controller operation instructions refer to Step C 5 Turn the HEAT switch Figure 3...

Страница 25: ...SECTION 3 OPERATION 21 Figure 3 6 Control Panel ...

Страница 26: ...oint temperature Higher setpoint temperatures will require a longer wait The oven can reach a temperature of 500 F 232 C in approximately 15 minutes 3 After the oven has cooled and the blowers have turned to the OFF or O position switch the circuit breaker fuse disconnect to the OFF or O position 2 Make certain that there are no products left on the conveyor inside the oven Turn the CON VEYOR swit...

Страница 27: ...ey Press this key together with the Set Point Key to allow the Set Point to be changed Changes can only be made for 60 seconds Up Arrow and Down Arrow Keys Press these keys to adjust the Set Point up or down If the Set Point will not change refer to Set Point Key and Unlock Key in this section Set Point Key Press this key together with the Unlock Key to allow the Set Point to be changed Changes ca...

Страница 28: ...the BLOWER Switch is in the ON I position Turn the HEAT BLOWER and CONVEYOR switches to the OFF O position Wait for AT LEAST FIVE MINUTES before restarting the oven Repeat the Daily Startup procedure Check that the Set Point is correctly set Check that both the BLOWER and HEAT Switches are in the ON I position If the oven still will not heat turn the HEAT BLOWER and CONVEYOR switches to the OFF O ...

Страница 29: ... Move oven to desired location for servicing 4 When servicing is complete move oven to original location 5 Adjust legs to level oven 6 Connect electrical connectors to oven 7 Turn on main circuit breakers 8 Follow normal startup instructions 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 ...

Страница 30: ...ONOTOPERATE OVEN REPLACE COOLING FAN BLADE BEFOREOPERATINGOVEN Seriousdamage could be done to the burner 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 C Conveyor Belt Figure 4 2 Everyday just after starting the oven stand at the unloading end of t...

Страница 31: ...cleaning your oven first remove all heavy debris withavacuumcleaner Useadampclothforlightcleaning For heavier cleaning of baked on grease and carbon deposits use a non caustic cleaner that will not react with the aluminized finger manifold surfaces You can order non caustic cleaner from your local autho rizedMiddlebyMarshallPartsDistributorinthequantities listed below Part Quantity 27170 0244 Case...

Страница 32: ...SECTION 4 MAINTENANCE 6 Remove conveyor as shown Figure 4 6 Figure 4 7 CAUTION Be careful not to bump the drive sprocket while handling the conveyor to avoid damaging the drive shaft Figure 4 4 Figure 4 5 ...

Страница 33: ...lide blank plates straight out Figure 4 8 3 Remove air fingers NOTE Someovenusersrequireacustomfingerarrange ment where the quantity of air fingers may vary You can remove top and bottom fingers and blank plates from each or either end It is highly recommended that each finger be marked before removing so it is placed in exactly the same position when reassembled refer to step 1 Removetheairfinger...

Страница 34: ...er Finger C Reassembly of Air Fingers 1 Air fingers are made up of one inner plate one outer plateandthefingerhousingmanifold Besuretomatchup the markings T1 T2 T3 etc on all the parts of the air fingers as you are reassembling Figure 4 14 2 Reassembletheinnerplate Keepyourfingersclearso you won t pinch them The inner plate of a finger will only go in one way because of its design 3 Replace the ou...

Страница 35: ...ame way they came out IMPORTANT When inserting fingers the tab on the outer plate must be in the groove as shown in Figure4 18 Thereisablockingtabontheoutside of the groove which will prevent inserting the finger in the groove if the outer plate is moved away from the flange of the finger manifold Figure4 16 Figure 4 17 Extended Lip Flange of Finger Manifold Tab on Outer Plate Tab on Outer Plate ...

Страница 36: ...en edges Figure 4 18 Top Finger Incorrect Too Much Space Blank Plate Tab on Outer Plate of Finger Located in Groove Top Finger Incorrect Too Much Space Blank Plate Tab on Outer Plate of Finger Located in Groove Top Finger Correct Edges Overlap Completely Blank Plate Tab on Outer Plate of Finger Located in Groove ...

Страница 37: ...33 D Reinstall End Plugs 1 Reinstall lower end plug Be sure to tighten the wing screw on the end plug 2 Reinstall conveyor 3 Reinstall upper end plug Be sure to tighten two wing screws on the end plug Figure 4 19 Figure 4 20 ...

Страница 38: ...belt is still not under proper tension an entire link must be removed Use the following procedure H Conveyor Belt Link Removal to remove a link If conveyor belt is under proper tension proceed directly to J Attaching Drive Chain Figure 4 23 E ConveyorReassemblyIntoOven 1 Lift conveyor and position it in oven as shown NOTE Conveyormaybeinsertedintoeitherendofoven Ifitistobeinstalledfromthenon drive...

Страница 39: ...Unhook the link to be removed 5 Pull up on the belt link section and remove Do not discard the link removed as it may be used for making spare master links NOTE If a section of the conveyor belt is being replaced it should be done now Remove the links that need replacingandusethesectionofconveyorbeltfurnishedin your installation kit to replace them Figure 4 27 NOTE Before connecting the inside mas...

Страница 40: ...he underside of the con veyor must be against the lower end plug This is true on both sides of oven Figure 4 33 6 Reconnect the inside master links Figure 4 29 Figure 4 29 NOTE The outside master links have right and left sides to them The right edge master link has an open hook facingyouasshowninFigure4 30 Thiswillmatchupwith theouteredgesoftheconveyorbelt Rememberthishook travels backwards on th...

Страница 41: ...al contactor terminal screws as shown in Figure 4 35 Figure 4 35 B Ventilation Check that the air circulation throughout the oven is not blocked and is working properly IV MAINTENANCE EVERY 6 MONTHS A CheckbrushesonD C conveyormotor whenwornto less than 1 10 2 4mm replace the brushes B Check your oven venting system C Inspect and clean the burner nozzle and the spark electrode assembly IMPORTANT N...

Страница 42: ...08 240V 1 2 58390 Motor Conveyor Drive w Magnet 1 3 31651 Board Amplifier Signal 4 20VDC 1 4 32108 XFMR 240V PRI 24V 65VA SEC 1 5 33812 5 Thermocouple Type J Shielded 2 50 x 120 3 6 33813 Filter RFI 1 7 38185 Assembly Pickup Sensor 1 8 41647 Valve Module 1 9 41872 Transformer 240V P 24V S 25VA 1 10 44696 Switch Rotary and Mounting Adapter 3 11 44697 Block Contact 3 12 45644 Breaker Circuit 240V 1A...

Страница 43: ...ing Refer to Section 4 procedure or call your Middleby Marshall Service Agency PROBLEM OVEN BLOWER AND CONVEYOR OPER ATE YET THE OVEN IS NOT HEATING Start the oven again If the oven still does not heat call your Middleby Marshall Service Agency Reset the temperature controller to a new setting above 200 F after turning the BLOWER switch to off for 30 seconds PROBLEM OVEN DOES NOT TURN ON WHEN ITS ...

Страница 44: ...SECTION 5 TROUBLESHOOTING 40 NOTES ...

Страница 45: ...40 15 GRD WHI RED 14 82 80 42 17 44 19 TC GRD COM NO NC L2 RESET TC GROUND MAIN RED BLK GRD RED WHI BLK 4 3 4 3 0 3A CB3 CONTROLLER CONVEYOR X2 X1 H4 SWITCH BLOWER CB1 3A CB2 3A M LOWER MOTOR BLOWER UPPER MOTOR BLOWER LH PANEL LS 3 NO 1 NO 2 COM 2 COM 1 BACK PANEL LS 2 NO 1 NO 2 COM 2 COM 1 L1 L2 L3 E M MOTOR CONV DC GRD WHI RED TC2 C1 13NO 14NO 5L3 3L2 1L1 6T3 4T2 2T1 A2 A1 CONTROLLER TEMPERATURE...

Страница 46: ...SECTION 6 ELECTRICAL SCHEMATICS 42 NOTES ...

Страница 47: ...43 SECTION 6 ELECTRICAL SCHEMATICS NOTES ...

Страница 48: ...y damage injury or death Read the installation operating and maintenance instructions thoroughly before installing or servicing this equipment NOTICE During the warranty period ALL parts replacement and servicing should be performed by your Middleby Marshall Authorized Service Agent Service that is performed by parties otherthanyourMiddlebyMarshallAuthorizedServiceAgentmayvoidyourwarranty NOTICE U...

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