Middleby Marshall PS770G GAS User's Manual
Contents
1. 9 SECTION 5 B Recommendations 2 1 9 ELECTRICAL WIRING 23 C Other Ventilation Concerns 9 WIRING DIAGRAM 770 GAS OVEN 208 240 50 00 Hz i oes re ei 23 SECTION 1 DESCRIPTION l OVEN USES PS770 Series Ovens can be used to bake and or cook a wide variety of food products such as pizza pizza type products cookies sandwiches and others Il OVEN COMPONENTS see Figure 1 1 Conveyor Drive Motor Moves the conveyor B Crumb Pans Catch crumbs and other material that drop through the conveyor belt One crumb pan is located at each end of the conveyor C D Conveyor End Stop and Rear Stop Preventfood products from falling off the end or rear of the moving conveyor Conveyor Moves the food product through the oven n End Plugs Allow access to the oven s interior G Eyebrows Can be adjusted to various heights to prevent heat loss into the environment H Window Allows the user to access food products inside the baking chamber Machinery Compartment Access Panel Allows access to the oven s interior and control components user servicable parts are located in the machinery compart ment J Serial Plate Provides specifications for the oven that affect installation and operation Refer to Section 2 Installation for details Ill OVEN SPECIFICATIONS Table 1 12. iti ELL 50 v Addn g 01 SNS 2 H31HSANI AYS 10 0 19 m 21H 01 Eg zz a 0L3H OL 1HM m TON HH 9 9 2 M M 5 OL ONS n 2 4 E ad a Jj zi g of al a 2 9 E x 1 z Non NOD H31H3ANI 13313 Ioan z Hr ud 1 vi ON LON Alel 91 281 _ z NOD OD per 8 TSNNH TAN HH POL 8 61 ve HBIH ZON LON T m M Ug 5 z NOD g LE z T 1 5 WIGS woo fA E OL 601 23 Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin 11 60120 USA 847 741 3300 FAX 847 741 4406 lt THE MIDDLEBY CORPORATION Middleby 2728 Marshall www middleby com
3. Y Modulating Gas Valves SECTION 3 OPERATION C Temperature Control Display D Message Bar The Middleby Corporation E Energy Level Indicators B Conveyor Time Setting E Energy Level Indicators A Main On Off Button LOCATION AND DESCRIPTION OF CONTROLS A Main On Off Button Turns all oven functions on or off Ifthe oven is belowthe set point it will rise to the set point and turn the conveyor on If it is turned off and the oven is above 200 F the blowers will remain on until the oven drops below 200 F B Conveyor Time Setting Adjusts and displays the conveyor bake time Dual belt ovens have two displays single units have one 15 C Temperature Control Display Displays the average set point of both right and left sides of the oven Pressing on the display allows individual temperature displays and adjustments D Message Bar Displays messages during oven operation E Energy Level Indicators Displays energy usage on left and right sides of the oven ll NORMAL OPERATION STEP BY STEP A Daily Startup Procedure 1 Checkthat the circuit breaker fused disconnect is in the On position Check that the window is closed The touch panel display should be lit 2 Adjust the conveyor to the desired bake time 3 Press the temperature button to display right and left hand oven settings Set temperatures as desired 4 Pressthe ON button to activate the oven The conveyor wi
4. The following gas system specifications are STRONGLY RECOMMENDED Deviating from these recommendations may affect the baking performance of the oven 13 Electrical Junction Box One per oven 3 Ifincoming pressure is over 14 W C 35mbar a sepa rate regulator MUST be installed in the line BEFORE the individual shutoff valve for the oven WARNING To prevent damage to the control valve regula tor during initial turn on of gas itis very importantto open the manual shutoff valve very slowly After the initial gas turn on the manual shutoff valve must remain open except during pressure testing as outlined in the above steps or when necessary during service main tenance Gas Meter One or two oven cavities 750 cfh meter Three oven cavities 1200 cfh meter Gas Line DEDICATED LINE from the gas meter to the oven 2 50 8mm pipe for natural gas 2 50 8mm pipe for propane Maximum length 200 61m Each 90 elbow equals 7 2 13m of pipe SECTION 2 INSTALLATION B Connection Check the oven s gas supply requirements before making the gas utility connection Gas supply requirements are listed on the oven s serial plate and in Table 1 4 Gas Orifice and Pressure Specifications in Section 1 Description Check the serial plate to determine the type of gas Propane or Natural to be used with the oven Refer to the instructions in the gas hose package included in the Installation Kit before conne
5. Left Set point temperature Pressing on this value allows the user to adjust the set point for the left side of the oven Exit Returns to the main screen C Energy Modes Energy Mode One This mode is automatic and starts bake time 1 minute after the last product has entered the oven Inthis mode the main oven blowers will lower to 1500 RPM while the oven maintains temperature and belt speed Energy Mode Two The oven lowers its set point by 100 F and stops the belt Anytime that the oven is more than 10 degrees over its set point the burners will completely shut off allowing the oven to cool and the burners are on minimum flow The main blowers will continue to run at 1500 RPM in this mode Placing any article on the input belt will cause normal operation of the oven to resume and bring the set point back to its original level The belt will resume operation once both sides of the oven are within 5 F of the set point Energy Mode Three The oven will turn off completely and shut off the circulation blowers once the oven temperature has dropped below 200 F Placing any article on the input belt will cause normal operation of the oven to resume and bring the set point back to its original level The belt will resume operation once both sides of the over are within 5 F of the set point Energy Mode Four This is a complete oven shut down Placing anything on the belt will NOT return the oven to Operation The
6. right side master link has an open hook facing you as shown in Figure 2 10 e Checkforfreedom of movement of the conveyor belt by pulling it for about 2 3 feet 60 to 90 cm with your fingers The conveyor must move freely f Return to Step 8 above to re check the belt tension Figure 2 9 Checking the conveyor tension ODDS ESSE Hed Conveyor 0 are FIT pA Cu px PPP RR mE LC m art m ARS ur ar 22 tension MX n adjustment screws idler end only Pg 3 4 75 100mm vertical deflection 11 SECTION 2 INSTALLATION D STANDOFF INSTALLATION 1 Place screw P N 19415144 through counter bored hole in standoff P N 48522 and screw into weld nut on rear shroud 2 Repeat procedure for both sides Figure 2 7 Removing the Conveyor Drive Sprocket Loosen conveyor collar set screw then pull sprocket straight out Figure 2 8 Inserting the Conveyor 9 j T 1 1 m 1 NY AM M NW NN AW NN BN Ww S Retainer End plug Figure 2 10 Conveyor and Master Link Orientation Direction of travel CORRECT master link position Incorrect master link position Outside master link Inside master link orientation orientation SECTION 2 INSTALLATION V FINAL ASSEMBLY 1 Install the crumb
7. 13x1 1 4 bolts 1 2 flat washers and 1 2 lockwashers See Figure 2 4 Install one adjustable foot and one caster into the holes onthe bottom ofthe leg extension The adjustable foot should be installed into the OUTSIDE hole closest to the front or rear face of the oven The caster should be installed into the INSIDE hole Legs Casters Installation Triple Ovens Without Leg Extensions Install one adjustable foot and one caster into the 3 4 holes on the bottom of the base pad The adjustable foot should be installed into the OUTSIDE hole closest to the front orrear face ofthe oven The caster should be installed into the INSIDE hole See Figure 2 5 2b 3 Install the base pad onto the lower oven cavity Check that the eyebolt welded onto the pad faces the rear of the oven 4 Stacktheovencavities If necessary referto the instructional videotape provided with the Stacking Lift Kit P N 30580 B Restraint Cable Installation Because the oven is equipped with casters a restraint cable assembly must be installed to limit the movement of the appliance without depending on the connector and the quick disconnect device or its associated piping One end ofthe cable is anchored to the eyebolt on the rear surface of the oven s base pad while the other is anchored to the wall See Figure 2 6 After connecting the restraint cable move the oven to its final location Adjust the bottom hex sections of the feet so that the casters
8. INSTRUCTIONS TO BE FOLLOWED IN THE EVENT YOU SMELL GAS Instructions to be followed in the event the user smells gas shall be obtained by consulting the local gas supplier If the smell of gas is detected immediately call the emergency phone number of your local Gas Company They will have personnel and provisions available to correctthe problem FOR YOUR SAFETY Do not store or use gasoline or other flammable vapors or 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 installation operating and maintenance instructions thoroughly before installing or servicing this equipment IMPORTANT An electrical wiring diagram for the oven is located inside the machinery compartment IMPORTANT It is the customer s responsibility to report any concealed or non concealed damage to the freight company Retain all shipping materials until it is certain that the equipment has not suffered concealed shipping damage NOTICE CONTACT YOUR MIDDLEBY MARSHALL AUTHORIZED SERVICE AGENT TO PERFORM MAINTENANCE AND REPAIRS AN AUTHORIZED SERVICE AGENCY DIRECTORY IS SUPPLIED WITH YOUR OVEN NOTICE Using any parts other than genuine Middleby Marshall factory manufactured parts relieves the manufacturer of all warranty and liability NOTICE Middleby Marshall Manufacturer reserves the right to change specifications at any
9. Table 1 3 Elecrical specifications for PS770G gas ovens Main Blower Voltage Control Circuit Voltage Phase Freq Current Draw Poles Wires 208 240V 24 VDC 1 Ph 50 60Hz 20 Amp 2Pole 3 Wire 2 hot 1 gd Table 1 4 Gas orifice and pressure specifications for PS770G gas ovens Main Orifice LD Orifice Manifold Gas Type PS770G Supply inlet Pressure Pressure Natural 0 173 6 12 W C 14 9 29 9mbar 3 5 W C 8 7mbar Propane 0 118 11 14 W C 27 4 34 9mbar 7 0 W C 17 7 mbar IMPORTANT Additional electrical information is provided on the oven s serial plate and on the wiring diagram inside the machinery compartment SECTION 2 INSTALLATION WARNING After any conversions readjustments or service work on the oven Perform a gas leak test Testfor proper combustion and gas supply e Testfor correct air supply particularly tothe gt Checkthattheventilationsystem is in operation burner blower WARNING Keep the appliance area free and clear of combustibles WARNING The oven must be installed on an even level non flammable flooring and any adjacent walls must be non flammable Recommended minimum clearances are specified in the Description section of this Manual WARNING Do not obstruct the flow of combustion and ventilation air to and from your oven There must be no obstructions around or underneath the oven Constructional changes to the area where the oven is installed shall not affect the air supply to the o
10. are off the floor For quad ovens lock the two front casters C Conveyorlnstallation NOTE Split belt conveyors can only be installed from the end of the oven with the drive motor Single belt conveyor assemblies may be inserted into either end of the oven If it is to be installed from the end of the oven without the drive motor the drive sprocket assembly must be removed 10 Figure 2 4 Legs and Casters Standard Front or Rear of oven Left or Right Side of oven 1 2 flat washer 1 2 lock washer 1 2 13 x 1 1 4 hex screw Caster uses Foot uses OUTSIDE INSIDE hole closest to front hole or rear of oven Figure 2 5 Legs and Casters for Triple Oven Without Leg Extensions Front or Rear of oven Left or Right Side of oven Foot uses OUTSIDE Caster hole closest to front uses or rear of oven INSIDE hole Figure 2 6 Installing the Restraint Cable Restraint cable assembly 3 4 19mm eyebolt Eyebolt in base pad Rear surface of oven base pad Wall of structure To remove the drive sprocket if necessary loosen the set screw on the conveyor collar as shown in Figure 2 7 Then pull the sprocket assembly straight out 1 Liftthe conveyor and position it in the oven See Figure 2 8 2 Continue moving the conveyor into the oven until the frame protrudes equally from each end of the oven about 18 457mm 3 Check that the retainers located on the
11. supply connections are made inside the electrical junction box The power lines then connect to the oven circuits through safety switches located inside the machinery compartment and each blower motor compartment These switches interrupt electrical power to the oven when the Machinery Compart ment Access Panel is opened OR when either of the blower or rear shrouds is removed Connection Refer to the wiring diagram inside the machinery compart ment of the oven to determine the correct connections for the electrical supply lines Connect the supply as indicated on the wiring diagram CAUTION The terms of the oven s warranty require all start ups conver sions and service work to be performed by a Middleby Marshall Authorized Service Agent SECTION2 INSTALLATION Figure 2 12 Utility Connection Locations for Gas Ovens Strain relief fitting Gas Inlet One per Single Double or Triple Oven GAS SUPPLY CAUTION DURINGPRESSURETESTINGNOTEONEOFTHEFOLLOWING 1 The oven and its individual shutoff valve mustbe discon nected from the gas supply piping system during any pressure testing of that system at test pressure in excess of 1 2 psi 3 45 kPa 2 The oven must be isolated from the gas supply piping system by closing its individual manual shutoff valve dur ing any pressure testing of the gas supply pipingsystem at test pressure equal to or less than 1 2 psi 3 45 kPa A Gas Utility Rough In Recommendations
12. that ALL cooling fans are operating properly Figure 4 2 Rear Grills and Motor Shroud Grill CAUTION Grill on top of If a cooling fan is not operating correctly it must be replaced conveyor motor IMMEDIATELY Operating the oven without adequate shroud cooling can damage the oven s internal components F Clean the conveyor belts with a stiff nylon brush This is 60 gt more easily accomplished by allowing the conveyor to run while you stand at the exit end ofthe conveyor Then brush the crumbs off the conveyor as it moves G Remove and clean the crumb trays When reinstalling the trays refer to Figure 2 12 in Section 2 Installation Grills on top and bottom Grills on inside Grills on end of rear face of rear Grills on rear of shrouds 4 shrouds 4 shrouds 2 gas rear shrouds 2 ovens only 18 SECTION 4 MAINTENANCE MAINTENANCE MONTHLY NOTE When removing the conveyor refer to Figure 2 9 in Section 2 Installation A Check that the oven is cool and the power is disconnected as described in the warning at the beginning of this Section Remove the crumb trays and drive motor shroud from the oven Lift the drive end ofthe conveyor slightly and push it forward into the oven This removes the tension from the drive chain Then remove the drive chain from the conveyor sprocket Slide the conveyor out of the oven folding it as it is removed NOTE Split belt conveyors can only be remo
13. trays underneath the conveyor as shown in Figure 2 11 First place the inside edge of the tray onto the retainer shown in Figure 2 8 Then swing the outside edge of the tray up and into place 2 Press the conveyor end stop and rear stop down over the edge of the conveyor frame See Figure 1 1 in Section 1 Description Figure 2 11 Crumb trays Place inside edge of tray on retainer bracket Swing outside edge of tray up and into place ATTACHING THE POINT OF SALE CABLE Remove the cable P N 59198 from the Kit Attach the 90 degree plug to the rear of the touchscreen display and route the serial connector out the grommetted bottom hole and along the gas pipe Connect the serial connector with the cable supplied by the customer CONVEYOR BELT REVERSAL Conveyor belt reversal consists of three steps 1 Physically reversing the conveyor belt 2 Resetting direction jumper on the conveyor control board 3 Switching the photo detector REVERSING THE CONVEYOR BELT Remove the conveyor from the oven and find the master link location Remove master links and remove the belt from the conveyor frame Reassemble the belt back onto the frame in the reverse direction and reinstall the master links Replace the conveyor assembly in the oven RESETTING DIRECTION JUMPER Locate Jumper P1 on the conveyor control board Move jumper from terminals 1 and 2 and replace onto terminals 2 and 3 SWITCHING PHOTO DETECTOR Rem
14. 32 X 1 1 2 16 16 16 21216 0018 Bolt hex 1 2 13 X 1 1 4 16 16 16 21416 0003 Flat washer 1 2 16 16 16 21426 0004 Lock washer 1 2 27727 Bolt hex 3846 X 1 A21924 Flat washer 3 8 21172 0004 Lock nut hex 3 8 16 14 1 1 1 1 59198 Cable Program ADDITIONAL COMPONENTS FOR GAS OVENS 9 1 1 1 1 33120 0056 Gas pipe 1 1 4 dia X 54 1372mm L 10 2 2 2 2 27271 0004 Pipe clamp 1 1 2 11 2 2 2 2 33120 0055 Pipe nipple 1 14 dia X 3 76mm L NPT 12 2 2 2 2 23122 0007 Elbow 90 1 1 4 dia 13 1 1 1 1 22361 0003 Gas hose 1 1 4 dia X 72 1829mm L 2 2 2 2 21292 0001 Screw hex wshr hd 10 16 X 3 4 Il INSTALLATION KIT see Figure 2 2 NOTE Onelnstallation Kit is required for each oven cavity ITEM QTY P N DESCRIPTION 1 1 55028 STOP BACKSIDE CONV EXT 2 1 55027 STOP SIDEEND CONVEXT 3 1 59026 OWNER S OPERATING amp INSTALLATION MANUAL 4 1 42612 KIT SUPPLEMENT SVC AGENCY LIST 5 1 33120 0056 PIPE BLK 1 1 4 X 54 6 1 22450 0130 BAG POLYAMIL 9 X 12 W MINI GRIP 7 1 59155 BUSHING HEYCO SB 1500 18 8 1 59099 Reflector 9 1 59098 Bracket Reflector 10 1 59226 WLDMT Bracket Reflector 11 2 48522 Spacer 1 5 Dia X 1 125 H 12 2 19A15144 SCR MS HH 10 32 X 1 1 4 18 8 SECTION 2 INSTALLATION Fig 2 2 Installation Kit IIl VENTILATION SYSTEM IMPORTANT Where national or local codes require the installation of fire suppression equipment or other supplementary equipment DO NOT mount the equipme
15. Dimensions Single Oven K Control Panel Location of the operating controls for the oven Refer to Section 3 Operation for details Not Shown L Gas Burner gas ovens the air fingers by the blowers Heat air which is then projected to M Blowers Project hot air from the burner or heating ele ments to the air fingers Air Fingers Project streams of hot air onto the food product Figure 1 1 Oven Components Double Oven Triple Oven Overall Height Overall Depth Overall Length PS770G Conveyor Width 47 1194mm 63 3 8 1610mm 106 2692mm 32 813mm or 2x15 381mm Recommended Minimum Clearances 63 3 8 1610mm or 2x15 381mm 61 1549mm 63 7 8 1622mm 63 3 8 1610mm 106 2692mm 32 813mm or 2x15 381mm 106 2692mm 32 813mm RearofOven inc rear shrouds to Wall __ _ 6 152mm 6 5 0 e 52mm Conveyor Extension to Wall both ends 0 0 mm 0 0 mm 0 0 mm Table 1 2 General Specifications PS770G Weight 1400 Ibs 634kg Rated Heat Input 175 000 BTU 210 000 BTU 42 840 kcal 50 52 919 kcal 61 5 kW hr Maximum Operating Temperature lt 550 F 288 C gt Air Blowers Two blowers at 1400 ft min 39 6m min at 2050 RPM 0 40 1 0cm Water Static Pressure Average Air Jet Velocity lt 2600 ft min 1320cm sec average gt Warmup Time lt 15 min gt
16. ON button on the main screen has to be pressed to restart the oven Ill QUICK REFERENCE TROUBLESHOOTING SYMPTOM Oven will not turn On Oven will not heat Oven is operating but little or no air is coming from the fingers SCREEN ALERTS SYMPTOM Battery Symbol in the lower right hand corner High Control Compart ment Temperature Main Blower problem or Combustion Blower problem Belt off Oven not in temperature PROBLEM No electrical power No gas pressure Burner did not light Air fingers may be as sembled incorrectly after cleaning Oven is not up to operating temperature Conveyor may be jammed PROBLEM The internal battery needs to be replaced to retain energy mode timings Clean and replace the front fan filters The computer has detected a problem with either the main or burner blowers Thermocouple or PLC malfunction Normal operation until Oven reaches operating temperature 17 SOLUTION Check that the circuit breaker fused disconnect is on Make sure the emergenct stop button is on Make sure main gas is on Turn oven off and restart If it still does not light call for service Turn oven off and allow to cool Reassemble fingers correctly Turn oven off and allow to cool Check conveyor for block age SOLUTION A qualified service technician should accomplish this Failure to do this will eventually shut down the oven due to excessive tempera
17. PS770 Series Gas Domestic ENGLISH 77 M id d leby E 727248 Marshall PS 0 Series Gas Ovens Model Combinations e PS770G Gas Single Oven Double Oven Two Stack e ripleOven Three Stack OWNER S OPERATING AND INSTALLATION MANUAL for domestic and standard export ovens 92006 Middleby Marshall Inc Middleby 9 Marshall is a registered trademark of Middleby Marshall Inc All rights reserved Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin IL 60120 847 741 3300 FAX 847 741 4406 6 US ISTE Listed This Owner s Operating and Installation 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 Gas ovens are designed for use with EITHER natural gas OR liquid propane gas as specified on the serial plate Where permitted by local and national codes the oven can be converted from natural gas to propane operation orfrom propane to natural gas operation This conversion requires the installation of the appropriate Middleby Marshall Gas Conversion Kit by an Authorized Service Agent It is suggested to obtain a service contract with a Middleby Marshall Authorized Service Agent WARNING POST IN A PROMINENT LOCATION THE EMERGENCY TELEPHONE NUMBER OF YOURLOCAL GAS SUPPLIER AND
18. TING GAS 1 2 13 2 31651 AMPLIFIER MODULATING VALVE 14 1 33983 HIGH LIMIT CONTROL MODULE 240V 15 2 32108 TRANSFORMER 240Vp 24Vs 16 1 59082 PLC MODULE PROGRAMMED 17 1 58668 THERMOCOUPLE MODULE 18 1 58669 CURRENT MODULE 19 1 59112 PHOTOCELL Fig 4 9 Key Spare Parts The M ddieby Corporation ii 1 1 Speed Bell 2 Sp 16 17 18 schematics Diagrams electri iring W 6 ZH 09 05 022 8029 Jequunw OPON ONNGHS ANY 1NOHJ ci NES 4 VAS AHyONOOSe Ex 7H 09 08 4 5 VAS Agr AHVIIHd Ape AHVUNDOSS 1497 zH 0906 0 AWWA JH gZHAJX LHS HOLOW BB ANGI OLL 981 na giao NOLLINEI RB BB 081 170 1231 HOLLINS HOLIMS HIV LNOGHJ3 AINO 1136 175 2 3AIVA OOW HALNI HH HH T1390 L0Hd vel LMaN ind LAG LAN LJANI ind LAG adAgoe WAGE v OOAGE WAGE HALNI H1 HH TISOO10Hd au 6066 160 HATIGHINGS au 9056 180 z Hilda AV HAI AY fH3ddni TYNES 7 TWNBIS neges ur AOD y SHvLO Odd No SH HIN LINM 08
19. ame check that they are oriented properly Remem ber that unequal width split belt ovens should AL WAYS have the narrower belt at the front of the oven Reassemble the drive shaft into the conveyor Check that the nylon spacer is in place as shown in Figure 4 7 Also check that the bronze washer is in place between the two sections of the shaft Replace the drive sprockets Reassemble the belts and master links onto the conveyor and replace the conveyor in the oven Reassemble the motor shroud and conveyor exten sions onto the oven 20 16 SECTION 4 MAINTENANCE Check the tension of the conveyor belt The belt should lift between 3 4 75 100mm If necessary adjust the belt tension by turning the conveyor adjustment screws Figure 4 5 Split Belt Idler Shaft Conveyor adjustment screw Figure 4 6 Split Belt Drive Shaft Locking collar Figure 4 7 Washer and Spacer Bronze washeron BOTH idler and drive shafts Nylon spacer on drive shaft ONLY 7 5 SECTION 4 MAINTENANCE E Blower Belts 1 To gain access to each blower belt compartment remove the four screws shown in Figure 4 8 Then lift the rear shroud off its hangers If access to the blower motors is required remove the three mounting screws two on the front of each shroud and one on the rear Then lift the end shroud straight up and off its hangers Check each blower belt for cracking or excess
20. ase Pad Legs Casters and Stacking 10 l OVEN USES RRRESEHEESEEEEENEEEEEENEREREREHRSEREESRERENENREEREENREENREREEEEREEREENENEEREENNEM 6 B Restraint Cable Installation RENNES 10 OVEN COMPONENTS 6 C Conveyor Installation 10 A Conveyor Motor Drive eene 6 D Standoff Installation eere 11 B Crumb Pans 6 V FINAL 12 Conveyor End Stop and Rear Stop 6 VI ELECTRICAL SUPPLY 12 D Conveyor End Stop and Rear Stop 6 Connection 13 E Conveyor 6 GAS SUPPLY 220 13 g ci Aul pm e 6 A Gas Utility Rough In Recommendations 13 creer 6 B 14 H WindOW nnn nnn 6 C Gas 14 Machinery Compartment Access Panel 6 D Propane Conversion
21. cting the gas line One gas line connection method is shown in Figure 2 13 however compliance with the applicable standards and regulations is mandatory Inlet regulated and pilot gas pressure readings can be taken using a U tube manometer at the tap locations shown in Figure 2 14 NOTE The installation must conform with local codes orinthe absence of local codes with the National Fuel Gas Code ANSI Z223 1 latest edition 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 because a the oven is equipped with casters the gas line connection shall be made with a connector that complies with the Standard for Connec tors for Movable Gas Appliances ANSI 221 69 in U S A as well as a quick disconnect device that complies with the Standard for Quick Disconnect Devices for Use With Gas Fuel ANSI 221 41 in U S A Gas Conversion Where permitted by local and national codes it is possible to convert ovens from natural to propane gas or from propane to natural gas Use the appropriate Middleby Marshall Gas Conversion Kit for the specific oven model CAUTION The terms of the oven s warranty require all start ups conver sions and service work to be performed by a Middleby Marshall Authorized Service Agent D PS770 Propane conversion Four items have to be changed to change the oven to LP 1 Adjust inte
22. e conveyor replace it at this time Reattach the drive chain Check the tension of the conveyor belt as shown in Figure 2 10 in Section 2 Installation The belt should lift between 3 4 75 100mm DO NOT OVERTIGHTEN THE CON VEYOR BELT If necessary the belt tension can be ad justed by turning the conveyor adjustment screws located at the idler right end of the conveyor Replace the crumb trays and drive motor shroud 19 Figure 4 3 Removing Air Fingers and Plates Figure 4 4 Disassembling the Air Fingers Manifold Inner plate Outer Plate 0 Pull outer plate straight up and off Swing ends of inner plate and manifold apart Pull inner plate nae upwards and Pe then away from manifold Step on lip of manifold MAINTENANCE EVERY 3 MONTHS Check that the oven is cool and the power is disconnected as described in the warning at the beginning of this Section Vacuum both of the blower motors and their surrounding compartments using a shop vacuum Tighten all electrical control terminal screws Split Belt Disassembly and Cleaning For split belt ovens ONLY disassemble clean and lubri cate the conveyor shaft components as described below 1 10 11 12 13 14 T9 Remove the motor shroud conveyor extensions and conveyor as described in Part Il Monthly Maintenance Remove the master links from each conveyor belt Then roll the belts
23. eere 14 d Serial Pl AUG 6 K Control Panel 6 SENS E UE 6 OPERATION nnne 15 M BIOWBES 6 COS ATIONAND DESCAIPTION OF CONTROLES s N Air Fingers E 6 SIERENS TEE 19 A Daily Startup Procedure 16 OVEN 06 61 60 6 6 B Daily Shutdown Procedure 16 Dimensions 6 1 MODE 17 B General Specifications 6 IV SCREEN 1 7 17 C Electrical Specifications for PS770 Gas Ovens 7 D Gas Orifice and Pressure Specifications SECTION 4 for PS770 Gas Ovens 7 MAINTENANCE eee eene e eren 00000 natn a snas ansa snas 18 SECTION 2 MAINTENANCE DAILY 18 INSTALLATION 7 MAINTENANCE MONTHLY eene 19 BASE PAD KIT 8 Ill MAINTENANCE EVERY 3 MONTHS 20 Il INSTALLATION KIT 9 IV MAINTENANCE EVERY 6 MONTHS 21 IIl VENTILATION SYSTEM 9 V KEY SPARE PARTS KIT eene 22 A Heguiremells
24. f the appropriate statutory authority such as the National Electrical Code NEC ANSI NFPA70 U S A the Canadian Electrical Code CSA C22 2 the Australian Code AG601 or other applicable regulations NOTE The electric supply connection must meet all national and local electrical code requirements Check the oven serial plate before making any electric supply connections Electric supply connections must agree with data on the oven serial plate The location of the serial plate is shown in Figure 1 1 in Section 1 Description A fused disconnect switch or a main circuit breaker customer furnished MUST be installed in the electric supply line for each oven cavity It is recommended that this switch circuit breaker have lockout tagout capability The supply conductors must be of the size and material cop per recommended Refer to the wiring diagram inside the machinery compartment of the oven Electrical specifications are also listed on the oven s serial plate and in Table 1 3 Electrical Specifications in Section 1 Description The oven requires a ground connection to the oven ground screw For gas ovens the ground screw is located in the electrical junction box see Figure 2 12 If necessary have the electrician supply the ground wire Do NOT use the wiring con duit or other piping for ground connections Incoming electrical power lines are fed through the strain relief fitting shown in Figure 2 12 The electrical
25. ive wear Check for amount of belt deflection in the center of the belt 1 2 deflection is acceptable see Figure 4 9 If necessary replace belt MAINTENANCE EVERY 6 MONTHS Check that the oven is cool and the power is disconnected as described in the warning at the beginning of this Section For gas ovens clean and inspect the burner nozzel and electrode assembly Check and clean if necessary the oven venting system Check the conveyor drive shaft bushings and spacers Replace the components if they are worn 21 Figure 4 8 Rear Shrouds and Guard Plates End shroud screws 3 per shroud 1 rear 2 front End shroud Rear shroud screws Rear shroud remove SECOND if 4 per shroud for gas remove FIRST necessary Access to bearin A to bl for electric ovens 9 fan belt motor Figure 4 9 Belt Deflection Press center of belt 1e deflection acceptable SECTION4 MAINTENANCE V KEY SPARE PARTS Available separately See Figure 4 9 ITEM QTY P N DESCRIPTION 1 1 59080 DIGITAL DISPLAY PROGRAMMED 2 1 58678 MOTOR CONVEYOR DRIVE 3 1 58679 CONVEYORCONTROL BOARD 4 2 59169 INVERTER PROGRAMMED 5 1 9608 POWERSUPPLY 6 1 59047 KIT THERMOCOUPLE 5 THERMOCOUPLES 7 2 M9616 FAN COOLING 8 2 57288 MOTOR BLOWER 9A 1 5 141 AIRSWITCH BURNER BLOWER MOTOR 9B 2 50610 AIR SWITCH MAIN BLOWER 10 1 54727 IGNITION MODULE 11 1 M9887 ASSEMBLY BURNER BLOWER MOTOR 12 2 41647 VALVE MODULA
26. lied hereunder and 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 the 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 WARRANTY IS EXCLUSIVE AND IN LIEU OF ALL OTHER EXPRESS AND IMPLIED WARRANTIES WHATSO EVER SPECIFICALLY 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 The Middleby Marshall logo is a registered trademark of Middleby Marshall A Middleby Company Middleby Marshall Inc 1400 Toastmaster Drive Elgin Illinois 60120 9272 U S A 847 741 3300 FAX 847 741 4406 Table of Contents Page Page SECTION 1 WA SSENDE Y SC 10 DESCRIPT ION ENNIUS 6 B
27. ll notrun until the oven temperature has reached the set points B Daily Shutdown Procedure 1 Make certain there are no products left on the conveyor inthe oven 2 Press the ON square to turn the oven off 3 Open the window to allow the oven to cool faster 4 Aftertheovenhas cooled and the blowers have turned off the circuit breaker fused disconnect may be turned off Quick Reference Touch Screen Controller A Main Screen 1 On Off button Used to turn oven On and Off 2 Conveyor speed Pressing on either the minutes or seconds allows a new value to be inputforthe conveyor speed Split belt ovens have two inputs front and rear belts Oven temperature Pressing on the set temperature shifts the user to the oven temperature set point indicator screen Energy level indicators Indicators to either side of the screen indicate the energy input to that side of the oven Message bar Indicates various messages pertaining to current oven conditions B Oven Temperature Set Point Indicator Screen 1 Right actual temperature Indicates current average temperature of the right side of the oven 16 2 Leftactual temperature Indicates current average temperature of the left side of the oven NOTE Right to Left temperature settings should not exceed a differential of 20 F 3 Right Set point temperature Pressing on this value allows the user to adjust the set point for the right side of the oven
28. nt directly to the oven MOUNTING SUCH EQUIPMENT ON THE OVEN MAY VOID AGENCY CERTIFICATIONS RESTRICT SERVICE ACCESS LEAD TO INCREASED SERVICE EXPENSES FOR THE OWNER A Requirements CAUTION Gas oven installations REQUIRE a mechanically driven ventilation system with electrical exhaust air sensing control A mechanically driven ventilation system is STRONGLY RECOMMENDED for electric oven installations PROPER VENTILATION OF THE OVEN IS THE RESPONSIBILITY OF THE OWNER B Recommendations NOTE THAT THE HOOD DIMENSIONS SHOWN IN FIGURE 2 3ARERECOMMENDATIONS ONLY LOCAL NATIONAL AND INTERNATIONAL CODES MUST BE FOLLOWED WHEN INSTALLING THEVENTILATION SYSTEM ANY APPLICABLE 18 458mm minimum Typical both ends of oven 2 51mm minimum CODES SUPERSEDE THE RECOMMENDATIONS SHOWN IN THIS MANUAL The rate of air flow exhausted through the ventilation system may vary depending on the oven configuration and hood design Consult the hood manufacturer or ventilation engineer for these specifications To avoid a negative pressure condition in the kitchen area return air must be brought back to replenish the air that was exhausted 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 supplying return air is through the heating ventilation and air conditioning HVAC system Through the HVAC system the air can be tempera
29. orm with the Natural Gas Installation Code CAN CGA B1 49 1 or the Propane Gas Installation Code CAN CGA B149 2 as applicable Gas and electric ovens when installed 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 n Australia the oven installation must conform with any requirements ofthe appropriate statutory authority Gas oven installtions must conform with AGA Code AG601 7 SECTION2 INSTALLATION Fig 2 1 Base Pad Kit l BASE PAD KIT see Figure 2 1 NOTE OneBase Pad Kitis required for each Single Double or Triple Oven installation Quantity Single oven Double oven Triple oven Triple oven with 19 leg with 15 leg with 4 leg without leg item extensions extensions extensions extensions Part No Description 1a 4 37210 0060 Leg extension 19 483mm EL cb 37210 0082 Leg extension 10 254mm 7 37210 0057 Leg extension 15 381mm ast t S d e ow 39684 extension 4 102 tt 4a 2 2 2 2 37115 0102 Caster swivel with stud 4b i 2 58930 swivel with brake 000 5 4 4 4 4 22450 0028 Adjustable foot standard 6 1 1 1 1 22450 0253 Restraint cable 60 1524mm 7 1 1 1 1 21392 0005 Eye bolt lag screw 8 1 1 1 1 37210 0055 Base pad 2 2 2 2 35210 0656 Top cover right or left 8 8 8 8 59156 Screw sl trus hd 10
30. ose or pressurized steam cleaning equipment when cleaning this oven DO NOT use excessive amounts of water to avoid saturating the oven insulation DO NOT use a caustic oven cleaner which can damage the aluminized bake chamber surfaces NOTE 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 MAINTENANCE DAILY A Check that the oven is cool and the power is disconnected as described in the warning at the beginning of this Section Figure 4 1 Front Cooling Fans B Clean the outside of the oven with a soft cloth and mild Foam filter detergent C Clean the front cooling fans as follows Snap offthe protective grille and wipe it clean with a cloth See Figure 4 1 Remove the foam filter and inspect it If itis dusty shake it briskly If dirt or grease is present on the filter wash it in warm soapy water Rinse the filter squeeze it to remove as much of the water as possible and then set it aside to dry thoroughly before reinstallation Once the filter is dry reinstall the filter and grille Protective grill D Clean the motor shroud and rear grills using a stiff nylon brush Refer to Figure 4 2 for the locations of the grills E Check
31. ove both rear fan belt covers then remove the motor cover assembly from both sides of the oven The photo eye is located on the front side of the left motor bracket Disconnect the three connecting wires noting which color wires assemble to the associated wires on the photo detector Remove the entire photo detector bracket Replace the assembly to the right hand side of the unit mirroring the way it was assembled on the left Reconnect the detector wiring in the same order it was on the left 12 Mount the new reflector bracket to the provided holes on the front right hand side of the oven The reflector should be positioned just above the conveyor belt Using an assistant hold both back cover switches in the closed position This will allow power to the photo eye and it will provide a red beam for aiming Loosen one of the screws holding the photo detector gimbal tight allowing it to be reaimed at the reflector The beam should hit exactly in the center of the reflector then tighten the screw back down Note This is MUCH easier in reduced light Replace all covers ELECTRICAL SUPPLY WARNING Authorized supplier personnel normally accomplish the connections for the ventilation system electric supply and gas supply as arranged by the customer Following these connections the factory authorized installer can perform the initial startup of the oven NOTE The electric supply installation must satisfy the requirements o
32. r customer abuse are not covered by this no quibble warranty Seller shall be responsible only for repairs or replace ments 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 seller s sole and exclusive obli gation 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 buyer This warranty is effective on Middleby Marshall equip ment sold on or after April 1 2006 2003 Middleby Marshall A Middleby Company Installation Date Date d installation MIDDLEBY MARSHALL INC 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
33. rnal burner air shutters 2 Replace main Orifices 3 Replace and adjust the spring the main valve see LP kit 4 Adjust modulating valve bypass settings Disconnect the manifold unions closest to the main burner and remove the manifold assemblies four screws each Remove the addition four screws holding the burner cores and slide out each burner core leaving the ignition and sense wires connected Adjust the internal air shutters fully open and replace the cores Replace the main orifices on the manifold assemblies with the LP units and replace the manifold assemblies Reconnect the unions Replace the valve spring with the LP spring and adjust the downstream pressure to get 7 WC Adjust the bypass screws in the side of each modulating valve to approximately 1 6 turn from fully closed If this setting is too low the burners will shut off when trying to modulate If it is too open the unit will tend to gradually raise up in temperature at standby Figure 2 13 Flexible Gas Hose Installation To Gas Supply Pipe Full Flow Gas Shutoff Valve 90 Flexible Gas Hose Union OR quick disconnect device Figure 2 14 Gas Burner Blower Motor and Piping Assembly Cap for Top Oven Cavity Gas Burner Combination Gas Valve Burner Blower Motor COC I5 gt o Manifold Pressure Taps hp oe n z 2 vu CTT ARs TET
34. s option without charge F O B Sellers factory any part found to be 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 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 fac tory 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 repairs or replacements of defective parts shall be performed by Sellers authorized service personnel Seller shall not be responsible for any costs incurred if the work is performed by other than 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 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 supp
35. time NOTICE The equipment warranty is not valid unless the oven is installed started and demonstrated under the supervision of a factory certified installer Retain This Manual For Future Reference Middleby Cooking Systems Group 1400 Toastmaster Drive Elgin IL60120 USA 847 741 3300 FAX 847 741 4406 www middleby com 3 Model No Mod le No Serial No Seri No MIDDLEBY MARSHALL PAPA JOHN S No Quibble Limited Warranty Middleby Marshall will repair the equipment 24 hours a day 365 days a year U S A Only PS770 WOW Oven MIDDLEBY MARSHALL HEREINAFTERREFERRED TO AS THE SELLER WARRANTS EQUIPMENT MANU FACTURED BY THEM TO BE FREE FROM DEFECTS IN MATERIAL AND WORKMANSHIP FOR WHICH IT IS RE SPONSIBLE 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 SUCHWARRANTY SHALL BELIMITED TO THE ORIGI NAL PURCHASER ONLY AND SHALL BE EFFECTIVE FOR A PERIOD OF THREE YEARS FROM DATE OF ORIGINAL INSTALLATION OR 42 MONTHS FROM DATE OF PURCHASE WHICHEVERIS 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 Normal maintenance functions including lubrication cleaning o
36. ture Remove obstruction and restart oven If no obstruction call service Remove obstruction and restart oven If no obstruction call service SECTION4 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 3 fitis necessary to move the oven for cleaning or servicing disconnect the gas supply connection before moving the oven When all cleaning and servicing is complete the oven reconnect it at this time 1 Ifthe oven was moved for servicing return the oven toits 5 Forgas ovens turn on the full flow gas safety valve Test original location the gas line connections for leaks using approved leak 2 For gas ovens reconnect the gas supply test substances or thick soap suds 3 Reconnect the electrical supply 6 Turn on the electric supply circuit breaker s 4 Ifthe restraint cable was disconnected to clean or service 7 Perform the normal startup procedure WARNING Possibility of injury from moving parts and electrical shock exists 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 050 switch any other circuit of the oven switched CAUTION NEVER use a water h
37. ture controlled for summer and winter Return air can also be brought in directly from outside the building but detrimental effects can result from extreme seasonal hot and cold temperatures from the outdoors NOTE airfrom the mechanically driven system must not blow at the opening of the baking chamber Poor oven baking performance will result C Otherventilation concerns Special locations conditions or problems may require the services of a ventilation engineer or specialist Inadequate ventilation can inhibit oven performance t is recommended that the ventilation system and duct work be checked at prevailing intervals as specified by the hood manufacturer and or HVAC engineer or specialist Fig 2 3 Ventilation System 8 203mm minimum 3 76mm minimum SECTION2 INSTALLATION IV ASSEMBLY A Base Pad Legs Casters and Stacking NOTE Optional Stacking Lift Kit P N 30580 The Stacking Lift Kit P N 30580 is available separately This Kit provides a complete lift adapter set specifically designed for stacking PS770 Series oven cavities The Kit includes an instructional videotape 1 Install the top panels in place on the top oven cavity Follow the instructions provided with the top panels 2a Legs Casters Installation Standard Single Ovens Double Ovens and Triple Ovens with Leg Extensions nstall one leg extension to each corner of the base pad using the supplied 1 2
38. underside of the conveyor frame rest firmly against the lower end plugs as shown in Figure 2 8 4 When the conveyor is positioned properly check for free dom of movement of the conveyor belt by pulling it for about 2 3 feet 60 to 90 cm with your fingers The conveyor must move freely 5 f the drive sprocket was removed when installing the conveyor replace it at this time 6 Install the drive chain between the conveyor drive sprocket and the motor sprocket To install the chain it will be necessary to lift the drive end of the conveyor slightly Install the conveyor drive motor cover Check the tension of the conveyor belt as shown in Figure 2 9 The belt should lift between 3 4 75 100mm DO NOT OVERTIGHTEN THE CONVEYOR BELT NOTE If necessary the belt tension can be adjusted by tuming the conveyor adjustment screws located at the idler right end of the conveyor See Figure 2 9 9 f necessary links can be added to or removed from the conveyor belt to achieve the correct deflection of 3 4 75 100mm If links must be removed from the belt it can be reattached to the conveyor as follows a The conveyor belt links must be oriented as shown in Figure 2 10 b The smooth side of the conveyor belt must face UP Connect the inside master links Check that the links are oriented as shown in Figure 2 10 d Connect the outside master links Note that the outside master links have right and left sides The
39. 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 conveyor frame as shown in Figure 4 5 Remove the idler shaft assembly from the conveyor Pull apart the two sections of the idler shaft Clean the shafts thoroughly using a rag Then lubricate both the extended shaft and the interior of the hollow shaft using an FDA approved light food grade lubricant CAUTION DO NOT lubricate the shafts using WD4O or a similar product This can cause the shafts to wear rapidly Before reassembling the shafts into the conveyor frame check that they are oriented properly Remem ber that unequal width split belt ovens should AL WAYS have the narrower belt at the front of the oven Reassemble the idler shaft into the conveyor Make sure that the bronze washer is in place between the two sections of the shaft See Figure 4 7 Replace the conveyor adjustment screws as shown in Figure 4 5 To allow the conveyor belt to be reinstalled later do not tighten the screws at this time Loosen the set screw on both of the conveyor drive sprockets Then remove the sprockets from the shaft Loosen the locking collar set screw as shown in Figure 4 6 Push the drive shaft to the right then lift it free of the conveyor frame Then disassemble and lubricate the two sections of the drive shaft as described in Step 5 Before reassembling the shafts into the conveyor fr
40. ved from the end of the oven with the drive motor Single belt conveyor assemblies may be removed from either end of the oven If it is to be removed from the end of the oven without the drive motor remove the drive motor sprocket as described in the Conveyor Installation instruc tions in Section 2 Installation Remove the end plugs from the oven The end plugs are shown in Figure 1 1 in Section 1 Description Slide the air fingers and blank plates out of the oven as shown in Figure 4 3 AS EACH FINGER OR PLATE IS REMOVED WRITE A LOCATION CODE ON IT WITH A MARKER to make sure that it can be reinstalled correctly Example of markings Top Row T1 T2 T3 T4 T5 Bottom Row B1 B2 B4 B5 B6 Disassemble the air fingers as shown in Figure 4 4 AS EACH FINGER IS DISASSEMBLED WRITE THE LOCA TION CODE FOR THE FINGER ON ALL THREE OF ITS PIECES This will help you in correctly reassembling the air fingers CAUTION incorrect reassembly of the air fingers will change the baking properties of the oven Clean the air finger components and the interior of the baking chamber using a vacuum cleaner and a damp cloth Referto the boxed warnings at the beginning of this Section for cleaning precautions Reassemble the air fingers Then replace them in the oven using the location code as a guide Replace the end plugs on the oven Reassemblethe conveyorintothe oven Ifthe drive sprocket was removed when installing th
41. ven CAUTION To reduce the risk of fire the appliance is to be mounted on floors of noncombustible construction with noncombustible flooring and surface finish and with no combustible material againstthe underside thereof or on noncombustible slabs or arches having no combustible material against the underside thereof such construction shall in all cases extend notless than 12 inches 304 8mm beyond the equipment on all sides CAUTION For additional installation information contact your local Authorized Service Agent NOTE There must be adequate clearance between the oven and combustible construction Clearance must also be provided for servicing and for proper operation NOTE A aspects ofthe oven installation including placement utility connections and ventilation requirements must conform with any applicable local national or international codes These codes supercede the requirements and guidelines provided in this manual NOTE n the USA the oven installation must conform with local codes In the absence of local codes gas oven installations must conform with the National Fuel Gas Code ANSI Z223 1 Gas and electric ovens when installed must be electrically grounded in accordance with local codes orin the absence oflocal codes with the National Electrical Code NEC or ANSI NFPA 70 NOTE n Canada the oven installation must conform with local codes In the absence of local codes gas oven installations must conf
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