OV300G & OV300E MINI ROTATING RACK OVENS
Contents
1. 22 Service and Parts Information 22 REMOVING xdi eae qe ce ab t ed E D I t item ed 23 To Remove Rack from Oveni dreniene ieda i iaa a e i eiia 23 TROUBLEESEHOQTING Siete de a sin re rece au e ea E Ea 25 Burners Will Not Light Gas Ovens 25 EC 25 Circulation Ee dee sete a e EP RR ERR PORRO Pieds 25 RACK ssn cote onlin HO tait d ei aim es 25 Service and Parts Information ccccccccsssssseccccececceeaeeseseceeeeseseueasceeeeseesesseaeaseeceseesessusagesseeees 25 OWNER PREVENTIVE MAINTENANCE PROCEDURES 26 INtFOMUCTION p 26 Preventive Maintenance Procedures cccsssssssccecceccceceeseeseececeesescaeseuseceeeeeeeseeauaeaeeeceseesesausaaaees 26 OPERATION AND CARE OF MODELS OV300G AND OV300E MINI ROTATING RACK OVENS SAVE THESE INSTRUCTIONS GENERAL Models OV300G Gas and OV300E Electric Mini Rotating Rack Ovens feature the choice of four rack configurations Eight 18 x 26 45 7 cm x 66 cm pan capacity rack with 4 10 2 cm slide spacing Six 18 x 26 45 7 cm x 66 cm pan capacity rack with 5 31 13 5 cm slide spacing e Ten 18 x 26 45 7 cm x 66 cm pan capacity rack with 3 2 8 1 cm slide spacing2. The steam and airflow delay settings are optional and can be left at 0 if desired 3 Slowly open the doors Wait for the rack to stop Load the oven Close the doors 4 Press the START button The ON light in the BAKE TIMER window blinks until the timer times out 5 The oven beeps after the BAKE TIMER times out Press STOP to silence the beeper 11 Operational Hints On the initial startup the oven temperature will default to the factory setting of 375 F 191 C unless changed using customized operations During a baking cycle the START and STOP buttons control the BAKE STEAM and AIRFLOW DELAY settings only They have no effect on the oven heat When the BAKE TIMER times out the oven heat stays at the set temperature Care should be taken not to overbake products To adjust the temperature during a baking cycle press the UP or DOWN arrows in the Oven Temp section to enter the new temperature To adjust the BAKE STEAM and AIRFLOW DELAY settings press the corresponding arrows to enter the new values Press START when finished Circulation blower will pulse during a steam cycle to assist steam distribution It does not attain full speed If the doors are opened at any time during the baking cycle the TEMP BAKE TIME STEAM and AIRFLOW DELAY settings will pause Close the doors to resume all functions The AIRFLOW DELAY option minimizes airflow at the beginning of the baking cycle The heat is off while the AIRFLOW D
3. Operation Manual MODEL OV300G amp OV300E OV300E ELECTRIC ML 132495 OV300G GAS ML 132494 MINI ROTATING RACK OVENS Model Number Serial Number Date of Installation Baxter Manufacturing Co 19220 State Route 162 East Orting WA 98360 Phone 360 893 5554 Toll free 1 800 280 2495 Fax 360 893 6128 FORM 36704 Rev B July 2009 IMPORTANT FOR YOUR SAFETY THIS MANUAL HAS BEEN PREPARED FOR PERSONNEL QUALIFIED TO INSTALL GAS EQUIPMENT WHO SHOULD PERFORM THE INITIAL FIELD START UP AND ADJUSTMENTS OF THE EQUIPMENT COVERED BY THIS MANUAL POST IN A PROMINENT LOCATION THE INSTRUCTIONS TO BE FOLLOWED IN THE EVENT THE SMELL OF GAS IS DETECTED THIS INFORMATION CAN BE OBTAINED FROM THE LOCAL GAS SUPPLIER IMPORTANT IN THE EVENT A GAS ODOR IS DETECTED SHUT DOWN UNITS AT MAIN SHUTOFF VALVE AND CONTACT THE LOCAL GAS COMPANY OR GAS SUPPLIER FOR SERVICE 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 OPERATINGAND MAINTENANCEINSTRUCTIONS THOROUGHLY BEFORE INSTALLING OR SERVICING THIS EQUIPMENT IN THE EVENT OF A POWER FAILURE DO NOT ATTEMPT TO OPERATE THIS DEVICE KEEP AREA AROUND OVEN CLEAR OF COMBUSTIBLES DO NOT OBSTRUCT COMBUSTION AND VENTILATION OPENINGS
4. Twelve 18 x 26 45 7 cm x 66 cm pan capacity rack with 2 8 7 1 cm slide spacing All oven rack options can be ordered in an end load design The six and eight pan options can be ordered in a side load design A mechanism in the ceiling rotates the rack during baking Model OV300G is rated at 95 000 BTU hr natural or propane gas Model OV300E is rated at 18 0 kW electric Baxter Mini Rotating Rack Ovens are produced with quality workmanship and material Proper installation usage and maintenance of the rack oven will result in years of satisfactory performance It is suggested that you thoroughly read this manual and carefully follow the instructions provided INSTALLATION In order to validate the warranty the start up must be performed by an Authorized Service Representative Before installing verify that the electrical service s and type of gas supply natural or propane agree with the specifications on the data plate located on top of the oven If the supply and equipment requirements do not agree do not proceed with the installation Contact an authorized Bakery Systems service office immediately UNPACKING This oven was inspected before leaving the factory The transportation company assumes full responsibility for safe delivery upon acceptance of the shipment Immediately after unpacking check for possible shipping damage If the oven is found to be damaged save the packaging material and contact the carrier within 15
5. ON THE OVEN This manual has been prepared to provide information in accordance with ANSI Z83 11 2000 for gas equipment 2 95 TABLE OF CONTENTS GENERA Ness 4 INS TALEATION Pet eit 4 UPB Apo Meme T 4 LOCATION ie ti EH en M eat tuni m In 5 Installation Codes and Standard ccccccccccccccecsesesseececeeeeceeeeseececeeeeseseeeaeeeseseeeeesseauaeaeeeeeeeeeeeeees 5 Assembly ee E 5 Gas COMNMECIONS MART REICH 6 Testing the Gas 5 ehe de e es 6 6 PIGMBING CONNECIONS 6 Drain Connections ette on Y RA ER TOO RENE 7 Electrical Connections n nte de rtr ER Hato d estu oe ee p Eb a 7 Ee HEC ERR IH Evam ide dts 8 Controls ros ce Tee ea iS RM Mec anc Ae IAS 8 Food Service Steam Mode 5 tuba e ed teet 13 Safety sea sides teda united ve tesi ca Bn ceca mist duae a ctt a deti tiled 13 sees apalredir 26 7 De 14 Using the Programs e n e e ete o ia Pat iss iut t prb iot latu e nad lect dac 17 Customized 18 SIMA OW 20 icm 21 2 25 22 Eric
6. CONNECTIONS A WARNING Electrical and grounding connections must comply with the applicable portions of the National Electrical Code and or other local electrical codes AWARNING Disconnect the electrical power to the machine and follow lockout tagout procedures WARNING Appliances equipped with a flexible electric supply cord are provided with a three prong grounding plug This plug must be connected into a properly grounded three prong receptacle If the receptacle is notthe proper grounding type contact an electrician Do not remove the grounding prong from this plug The wiring diagram is located behind the side service panel on the right side of the oven WARNING Do not connect the OV300G gas model to the electrical supply until after gas connections have been made The OV300E is an electrically heated oven consisting of six W shaped elements each rated at 3 0 kW for a total input of 18 0 kW The electrical input is shown in the table below HEATING CIRCUIT SUPPLY VOLTAGE Volts Hertz Phase Amps 50 60 50 60 50 60 Both gas and electric ovens require a dedicated 15 amp 110 V 50 Hz or 120 V 60 Hz single phase supply with ground connected at the control circuit terminal block located behind the right side service panel If oven is installed in conjunction with an HPC800 Proofing Cabinet a separate 120 V supply is required for the proofer OPERATION A WARNING The mini rack oven and its pa
7. ESO MINUTES SET MINUTES REMAINING STEAM TIMER SECONDS AIRFLOW DELAY MINUTES 2 To make a change in the setup item being displayed press the BAKE TIMER UP or DOWN arrows To adjust the setting see Setup Guide Do not attempt to change item numbers P4 P5 and P8 Consult your authorized Bakery Systems service agency for help with these features 3 To exit the setup mode press the POWER ON OFF button 18 Setup Guide SETUP nM SETUP ITEM DISPLAY Maximum Temperature This is the maximum temperature at which the oven can be set Setpoint Range is 50 F to 525 F 10 C to 274 C Preheat Temperature This is the default temperature setpoint when the oven is first turned on Program 0 The preheat temperature cannot be set higher than the value in P1 Range is 50 F to 525 F 10 C to 274 C Minimum Temperature This is the minimum temperature at which the oven can be set Setpoint Range is 50 F to 200 F 10 C to 93 C Temperature Offset This value permits an offset of correction between the temperature probe and the real baking chamber temperature Call your authorized Bakery Systems service agency for help with this feature P5 Heat OFF Offset This value adjusts the temperature difference between the set point and stopping of the heating system Call your authorized Bakery Systems service agency for help with this feature Heat Difference Hysteresis This value adjusts the temperature difference betwee
8. days of delivery Carefully unpack the oven and place it in a work accessible area as near to its final installed position as possible Remove protective covering from exterior surfaces prior to placing oven in final location LOCATION The OV300G and OV300E Mini Rotating Rack Ovens must have the following minimum clearances to combustibles Back and sides 0 Bottom 0 e 18 45 7 cm NOTE Minimum 24 clearance needed for service access on the right hand side If right hand side is within 30 of radiant heat or grease vapor source vent guard is required Be sure that electrical water and drain connections are accessible and can be made per local and national codes The equipment area must be kept free and clear of combustible substances Do not obstruct the flow of combustion and ventilation air Adequate clearance for air openings into the combustion chamber must be provided Make sure there is an adequate supply of air in the room to replace air taken out by the ventilating system INSTALLATION CODES AND STANDARD The oven must be installed in accordance with In the United States of America 1 State and local codes 2 National Fuel Gas Code ANSI Z223 1 latest edition Copies may be obtained from The American Gas Association Inc 1515 Wilson Blvd Arlington VA 22209 3 National Electrical Code ANSI NFPA 70 latest edition In Canada 1 Local codes 2 CAN CGA B149 1 Natural Gas Installation Code lat
9. EAM STEPS TIMER lt SECONDS AIRFLOW DELAY SON MINUTES 2 Confirm that the oven is at the set baking temperature 3 Slowly open the doors Wait for the rack to come to a stop 4 Load product into oven 5 Close the doors 6 Press START A beeper will sound after the BAKE TIMER times out Press STOP to silence the beeper 7 Check product for doneness IF NOT DONE If more bake time is needed press the Bake Timer UP ARROW key until the desired time appears on the Minutes Set window Press the START Key The Timer On indicator light will start blinking IF DONE Allow rack to stop and remove pans Program Hints The oven defaults to the Program 0 settings when first turned on Program 0 settings are as follows Temp 375 F Bake Timer 0 Steam Timer 0 Delay Timer 0 Program 0 Any combination of bake settings can be manually entered for one time custom baking operations These settings are not saved to the program memory of the baking parameters are changed in a program before or during a bake cycle the oven reverts to a manual program Program 0 indicating that the program has been altered The oven will continue to operate all the program steps as displayed The Program UP and DOWN arrows have no effect while the bake cycle is in progress However if the BAKE TIMER has been stopped either by pressing the STOP button or by opening the door then pressing the Program UP a
10. ELAY is activated If the oven temperature is more than 20 F 11 C higher than the set temperature and the bake timer is not activated the oven will automatically open the VENT The VENT will remain open until the oven temperature is within 20 F 11 C of the set temperature The oven monitors the heating system by comparing the current oven temperature to the set temperature If a problem arises in the heating system or there is a heating system failure both temperature displays will flash If the problem continues contact your authorized Bakery Systems service agency The COOL DOWN feature provides a means of cooling down the oven To enable this feature set a temperature at least 25 F 14 C cooler than the oven temperature Press the COOL DOWN button the display alternately shows the set temperature and COOL and the vent opens Additionally the doors can be opened and the circulation fan will continue to run The COOL DOWN mode is exited by the oven temperature reaching set temperature 25 F 14 C below set temperature if doors are opened or by pressing any button The oven rack will rotate only after there is time entered into the bake timer and the START button has been pressed Rotation will start when both doors are closed If there is no time entered into the bake timer the display will flash Press STOP and the controller will stop flashing Once started the rack will continue to rotate until a door is opened Circula
11. ER display A WARNING Disconnect the electrical power to the oven and follow lockout tagout procedures There may be multiple circuits Be sure all circuits are disconnected AWARNING If gas oven shut off gas Contact your authorized Bakery Systems service office Do not attempt to restart the oven until it has been inspected by an authorized servicer CIRCULATION MOTOR To conserve energy if there is no bake time 0 entered the circulation blower will only run when oven is below set point and burner heaters are on RACK ROTATION The rack will not rotate if no time O is set and started Check to make certain that doors are properly closed SERVICE AND PARTS INFORMATION Contact your authorized Bakery Systems service agency 27962 OWNER PREVENTIVE MAINTENANCE PROCEDURES INTRODUCTION This customer preventive maintenance PM section includes procedures to inspect for proper operation and cleaning of components Owner Preventive Maintenance Procedures are written for gas ovens They can also be used for electric ovens by omitting the steps that refer to components found only on gas ovens Customer PMs should be conducted bi monthly per OSHA Bakery Oven Inspection Standard 29 CFR 1910 263 1 9 A convenient PM Checklist is provided at the end of this section NOTE This PM procedure does not discuss repair or replacement of components Upon completion of the PM procedure you will need to contact a Bakery System serv
12. Verify operation of ignition module and lockout functions Verify and adjust manifold gas pressure settings with oven heating Record combustion analysis results Control calibration and steam operation Serial Number PM Type O Annual O Semi Annual OSHA ONLY Type of Gas Natural Gas L Propane Gas pressure setting manifold W C Combustion analysis O5 96 CO CO Air Free ppm Stack Draft W C Ticket Number Servicing Office Location Store No Technician Date Completed Customer Name Customer Signature Address City State Zip OSHA ONLY This is a safety check only amp does not include cleaning of control compartment combustion blower motor draft inducer or other associated assemblies Replacement of the ignition probe and or flame sense probe may be required for proper operation after removing the burner and is not included in the OSHA Inspection price Copy and Distribute as Needed FORM 36704 Rev B July 2009 32 PRINTED IN U S A
13. ase of cleaning See Removing the Rack Use warm soapy water and a brush Rinse with clear water and dry with a clean cloth Use care when cleaning around sensitive interior parts such as probes sensors or the rotating mechanism Using a clean cloth and warm soapy water wash the stainless steel interior of the oven rinse with clear water and dry with a clean cloth Gently scrape heavy buildup off door glass Residue can be removed with a glass cleaner when oven is cool Do not use cleaners containing grit abrasive materials bleach harsh chemicals or chlorinated cleaners Do not use oven cleaners Do not use steel wool or stainless steel cleaners on stainless steel surfaces Never spray down the oven with water or steam Be cautious with new or improved cleaning formulas use only after being well tested To rapidly cool down the oven shut off the controller Open both doors and press the VENT button This will run the circulation blower without any heat input until the door is closed 21 MAINTENANCE WARNING The rack oven and its parts are hot Use care when operating servicing or cleaning the oven AWARNING Disconnect the electrical power to the machine and follow lockout tagout procedures GENERAL As Needed Inspect the area around the oven The area must be free and clear from combustibles There must be no obstructions to the air flow Daily e Clean exterior See Cleaning Weekly NOTE Do no
14. displays the amount of time time 1 minute increments Press the for the current baking cycle The minutes set are the up arrow key to enter additional time at left two digits and minutes remaining are the right two the end of the bake program digits The windows can be set to display hours and minutes remaining The ON light is lit when bake time is active Press to enter the STEAM time The STEAM TIMER window displays the amount of 5 second increments in Bakery mode time set for the steam cycle The ON light is lit when the 1 second increments in Food Service steam system is active mode AIRFLOW Press to enter into beginning of baking The DELAY TIMER window displays the amount of time cycle set for the circulation blower delay cycle 0 9 minutes Press to stop the BAKE TIMER or The ON light is off when the BAKE TIMER is inactive silence the beeper after the BAKE TIMER has timed out Press the arrow keys to select a bake The PROGRAM window displays the number of the program current program The corresponding indicator light will be lit 1 to 4 depending on which step is selected BUTTON ACTION DISPLAY Press to open or close the vent The indicator light next to the VENT button is lit when the vent cycle is enabled Use to cool down the oven To enable this feature set a temperature at least 25 F 14 C cooler than the oven temperature Press the COOL DOWN button The COOL DOWN mode is exited when
15. e above process to access P14 and set the value in the BAKE TIMER window to 0 The STEAM TIMER will now operate in 5 second increments SAFETY ALARM STANDARD FEATURE NO PARAMETER SETUP REQUIRED If the temperature at the probe is in the range of 570 600 degrees Fahrenheit for 10 seconds the unit will do the following 1 Shut off all features 2 Sound an alarm 3 Flash the OVEN TEMP display actual temperature is displayed 4 Display the letters SHdn in the BAKE TIMER display A WARNING Disconnectthe electrical power to the machine and follow lockout tagout procedures There may be multiple circuits Be sure all circuits are disconnected A WARNING If gas oven shut off gas Contact your authorized Bakery Systems service office Do not attempt to restart the oven until it has been inspected by an authorized servicer 13 PROGRAMMING THE OVEN Single Step Programming The program menu stores up to 99 programs that can be recalled by number when needed A program is a set of baking instructions temperature bake steam and airflow delay settings that the operator defines for any baking operation ON POWER STEPS 99 EN 1 With the oven in the OFF mode press and hold the UP arrow in the STEPS section While pressing and holding the UP arrow press the POWER ON OFF button for 3 seconds When the beep sounds the oven is in program mode 2 Press the PROGRAM UP or DOWN arrows until the program numbe
16. ean convection panel grill Fig 6 of dust and or lint accumulation 4 Clean draft inducer housing grill guard Fig 7 A Access draft inducer housing on top of oven and clean grill cover of dust and or lint accumulation DRAFT INDUCER GRILL GUARD E US PANEL GRILL M C Fig 6 Fig 7 27 Inspect Rack Lift and Rotation Assemblies NOTE Before performing rack inspection observe condition of rack rotation belt 1 Check rack rotation belt OVEN TOP VIEW A Gain access to the top of oven and loosen the LOOSEN screws securing rack rotation assembly cover 6 PLACES _ Fig 8 T Lift cover from top of oven C Observe condition of the rack rotation belt If belt is worn or damaged contact your local Bakery Systems service agency RACK ROTATION ASSEMBLY COVER D Reverse procedure to install TSP 1514 Fig 8 2 Check rack assembly for proper operation A Putoveninto operation with customer s typical bake product load weight on rack If rack does not stop in the proper rack load unload position see Rack Adjustment NOTE Some undertravel or overtravel of rack position should be expected depending on product load Inspect Door Components 1 Check and or adjust door gaskets A While operating oven if air or steam blows out from the top sides or underneath the doors door gasket will need to be adjusted or replaced B If gasket needs to be replaced contact your local Ba
17. ep 2 The system continues with each step until all steps have been timed out ON POWER STEPS 99 923 1 With the oven in the OFF mode press and hold the UP arrow in the STEPS section While pressing and holding the UP arrow press the POWER ON OFF button for 3 seconds When the beep sounds the oven is in program mode 2 Press the PROGRAM UP or DOWN arrows until the program number that is desired is displayed The Step 1 light is lit 3 Press the TEMP UP or DOWN arrows to enter the desired temperature 2 5 MINUTES SET MINUTES REMAINING SECONDS AIRFLOW DELAY B A 4 Set the Bake Steam Delay Airflow and Vent settings e Press the UP or DOWN arrows next to BAKE TIMER to enter the desired time Press the UP or DOWN arrows next to STEAM TIMER to enter the desired time Press the UP arrow next to AIRFLOW DELAY to enter the desired time NOTE The steam and airflow delay settings are optional and can be left at 0 if desired e Press the VENT button to vent the cavity for the entire time of the step When step is complete vent will close PROGRAM STEPS 5 Press the UP arrow in the STEPS section to advance to the next step within the program The selected step light is lit Repeat steps 3 and 4 above to set each step if needed in the program 6 To store all the steps in the program press the PROGRAM UP or DOWN arrows to move to the next program number or press the POWER ON OFF bu
18. est edition 3 CAN CGA B149 1 National Fuel Gas Code latest edition available from The Canadian Gas Association 178 Rexdale Blvd Etobicoke Ontario Canada M9W 1R3 ASSEMBLY The oven must be installed on a stand proofer cabinet or any noncombustible surface The oven must be sealed to the stand with an NSF approved sealant such as Dow Corning 732 or GE RTV108 Secure the oven to the proofer or stand using the provided tie down brackets which mount on the front and rear of the oven Oven Mounted on a Stand or Proofer with Caster Foran appliance equipped with casters instructions that 1 the installation shall be made with a connector that complies with the Standard for Connectors for Movable Gas Appliances ANSI Z21 69 or Connectors for Moveable Gas Appliances CAN CGA 6 16 and a quick disconnect device that complies with the Standard for Quick Disconnect Devices for Use With Gas Fuel ANSI Z21 41 or Quick Disconnect Devices for Use with Gas Fuel CAN1 6 9 2 adequate means must be provided to limit the movement of the appliance GAS CONNECTIONS NOTICE Gas supply connections and any pipe joint compound must be resistant to the action of propane gases The OV300G is an indirect gas fired oven consisting of aheat exchanger with eight independent U shaped tubes each with a separate in shot burner rated at 11 875 BTU hr for a total input of 95 000 BTU hr A WARNING Prior to lighting check all joints in the gas supply l
19. he Bake Time remaining or the Oven Set temp If set for steam steam is produced in 5 second on 5 second off intervals for the time set in P7 The maximum solenoid on time range that can be set in P7 increases to 60 seconds Change P7 to 60 when P20 is set for 1 When P20 is changed from 1 restricted operator mode to 0 standard mode P7 must be set below 30 range 0 to 30 max or solenoid will energize continuously for up to 60 seconds PA a Not Used Setozm SHUTDOWN P17 P18 P19 P20 P21 P22 P23 P24 P25 NOTE Before restarting a gas oven the power switch and the gas burner valve must be off for a minimum of 5 minutes 1 Remove all remaining product NOTE Vent can be used to evacuate steam from oven 2 Allow the oven to cool then press the POWER ON OFF button If desired quicker cool down time can be accomplished through the use of the COOL DOWN button 3 Clean the baking chamber See Cleaning 4 For lengthy shutdowns disconnect the main power and shut off the gas and water supply 20 CLEANING WARNING The rack oven and its parts are hot Use care when operating servicing or cleaning the rack oven AWARNING Disconnect the electrical power to the machine and follow lockout tagout procedures Allow the oven to cool Clean the outside of the oven daily with a clean damp cloth Clean the rack as you would any cooking utensil Rack may be removed from oven for e
20. ice agency for any needed repairs Tools Used For Inspection Procedure Standard set of hand tools e Vacuum cleaner shop vac PREVENTIVE MAINTENANCE PROCEDURES WARNING Disconnect the electrical power to the machine and follow lockout tagout procedures A WARNING Shut off the gas before servicing the unit WARNING Certain procedures in this section require electrical test or measurements while power is applied to the machine Exercise extreme caution at all times If test points are not easily accessible disconnect power and follow lockout tagout procedures attach test equipment and reapply power to test 26 Inspect Oven Lamps UNSCREW COVER gt 1 Lamps should be on when oven is powered 2 If not replace lamps A Twistlamp cover Fig 4 to disengage from lamp sockets and remove from socket 3 Reverse procedure to install new lamp Clean and Vacuum Components and Burner Area 1 Clean the burner chamber Fig 5 area of dust and or lint accumulation A Remove screw securing control panel door and swing door open to access burner chamber area B Vacuum the burner chamber area of dust and or lint accumulation NOTE Individual burners may be inspected for clogs or debris without removing individual burners 2 Check and clean all air passageways A Clean all burner chamber air passageways of dust and or lint accumulation 3 Clean convection panel grill A 9 Cl
21. ine for leaks Use soap and water solution Do not use an open flame TESTING THE GAS SUPPLY SYSTEM When gas supply pressure exceeds 12 psig 3 45 kPa the oven and its individual shutoff valve must be disconnected from the gas supply piping system When gas supply pressure is 2 psig 3 45 kPa or less the oven should be isolated from the gas supply system by closing its individual manual shutoff valve VENTILATION Information on the construction and installation of ventilating hoods may be obtained from the standard for Vapor Removal from Cooking Equipment NFPA No 96 latest edition available from the National Fire Protection Association Batterymarch Park Quincy MA 02269 Exhaust Fan Interlock A connection point maximum 5 amps is provided for Indirect Vent Exhaust Hood or optional Direct Vent Draft Hood It is located behind the right side service panel adjacent to the 120 V power connection Consult local codes for vent interlock requirements Indirect Vent Under Exhaust Hood Standard Locate the oven under an exhaust hood with adequate overhangs and exhaust rates to completely capture the by products of combustion discharged from the flue From the termination of the flue to the filters of the hood venting system a minimum clearance of 18 45 7 cm must be maintained The hood exhaust fan can be electrically interlocked with the oven PLUMBING CONNECTIONS Water and waste piping and connections shall comply
22. kery Systems service agency 2 Check door switch operation A on oven and start a normal bake temperature B With the oven doors closed press START button and observe rack rotation If no rotation see Door Switch Adjustment Inspect Air Louvers 1 Check air louvers shutters Fig 9 inside oven and tighten any loose screws 2 Check oven interior and tighten or replace loose or missing panel screws Fig 9 28 Inspect Cavity Vent 1 Check cavity vent for proper operation A Push VENT button Fig 10 on control panel to open vent and push again to close vent B Visually check that vent opens Fig 11 and closes Fig 12 when button is pushed If vent does not operate contact your authorized Bakery Systems service agency for service VENT OPEN VENT CLOSED Fig 11 Visually Inspect Electrical Connections 1 Remove screw securing control panel door and swing door open to access burner compartment area 2 Inspect all wiring connections for discoloration If discoloration is visible contact your local Bakery Systems service office 29 Verify Ignition Module Safety Lockout Functions Gas Only 1 Verify ignition module safety lockout functions A Turn on the oven and close the doors B Turn off the gas supply to the oven C Set the oven control to call for heat and make sure convection fan is running D Remove screw securing the control panel door and swing the do
23. n the on temperature and off temperature of the heating system Call your authorized Bakery Systems service agency for help with this feature P7 Maximum Steam Time Time set is the maximum time in seconds that water is supplied during the STEAM TIMER operation Temperature Units The oven can be set to display temperature in Fahrenheit or Celsius To ensure accurate temperature parameters call your authorized Bakery Systems service agency for help with this feature Bake Timer Mode The BAKE TIMER can be set up to display minutes set minutes remaining or hours and minutes Select 0 for minutes set minutes remaining or 1 for hours and minutes If this parameter is changed to hours and minutes a label has been provided to place on the control panel to indicate the change P10 Vent Evacuate Time Time set is the time in seconds that the vent is 100 open at the beginning of the venting cycle Range is 0 to 180 seconds P11 Vent Open This value is the seconds the bake chamber vent is open per 60 seconds after the vent evacuate time has expired Range is 5 to 59 P12 End of Bake Automatic This feature enables the Automatic Vent Cycle Select 0 to disable Vent Enable or 1 to enable this feature see P13 for entering time End of Bake Automatic This is the number of minutes before the end of the bake cycle Vent Time that the vent is open Steam Timer Mode The STEAM TIMER can be set up to function in Bakery mode 0 single steam function at
24. nd Down arrows will select a new program and cancel the baking cycle that was in progress When selecting programs the system will skip over unprogrammed numbers For example if Program 1 is displayed in the PROGRAM window and no programs are stored in 2 3 and 4 then the system will skip over 2 3 and 4 Program 5 will be the next program displayed Vent opening programs the vent to open for P10 seconds full open and then for P11 seconds every 60 seconds 17 CUSTOMIZED OPERATION The Mini Rack oven controls have the capability of being customized to fit your personal needs using the setup mode Before entering the setup mode read all the instructions to make sure you are completely clear on what to do If you need assistance please call your authorized Bakery Systems service agency Entering Setup Mode With the oven in the OFF mode press and hold the START button While pressing and holding the START button press the POWER ON OFF button for 3 seconds The oven is now in Setup mode and P1 is displayed in the SET TEMP window EBEN MINUTES SET MINUTES REMAINING ON poner AIRFLOW DELAY 4 Changing Items in Setup Mode The number in the SET TEMP window is the setup number The BAKE TIMER window displays the setup item the settings that can be changed 1 To change the setup number press the SET TEMP UP or DOWN arrows The setup item will be displayed in the BAKE TIMER window
25. or open to access the burner compartment area E Observe LED on ignition module After trying to light the burner the module should lockout See following chart F Turn gas supply to oven back on G Set the oven control for heat and make sure convection fan is running and the burner has established a flame H Turn off the gas supply to the oven l Observe LED on ignition module Fig 13 The module should lockout See following chart LED DIAGNOSTIC INDICATOR CODES LED LED OFF LED ON 1 Flash 2 Flash 3 Flash J If the results have been obtained proceed to next IGNITION preventive maintenance procedure Cea K If the results have not been obtained contact your authorized Bakery Systems service agency for service 8731 30 2 Verify operation of draft inducer pressure switch NOTE Some ovens may have rectangular shaped vacuum switches A incoming power off to oven B Removescrew securing control panel door and swing door open to access burner compartment area REMOVE VACUUM TUBE HOSE C Loosenhoseclamp Fig 14 and remove vacuum tube from the vacuum switch D Reconnectincoming power to oven and turn oven on Set oven to heat and press START i MI LEAD WIRES The burners should not come on at this time G the burners do not come on proceed to next preventive maintenance procedure H If the burners do come on contact you
26. r local I Bakery Systems service office Fig 14 l Reverse the procedure to install NOTE Use normally open common terminals and low vacuum port for the vacuum switch setup 3 Verify operation of draft inducer stack fan pressure switch A Set oven for heat Disconnect tubing from exhaust vent collar Burner should go out B Reconnect tubing and burner should establish a flame D If the results have been obtained proceed to next preventive maintenance procedure E If the results have not been obtained contact your local Bakery Systems service office Verify Operation of Steam 1 NOTICE After completion of the owner PM Procedure you will need to contact an authorized Bakery Check steam system for proper operation A on the water supply Turn on the oven and set to normal bake temperature Allow to cycle three times to stabilize temperature Set control to call for steam office System service agency for any needed repairs Keep a copy of the Owner Preventive Maintenance Checklist for your records 31 CLAMP Observe operation If steam is not observed contact your local Bakery System service PREVENTIVE MAINTENANCE CHECKLIST CHECK FOR PROPER OPERATION AND ADJUSTMENT CLEAN OR ADJUST AS NEEDED I E S SISISI S olo E E SSS V PROCESS COMPLETED oQ OQjrjojrjojoxm OSH ONL Cavity vent Electrical connections
27. r that is desired is displayed 3 Press the TEMP UP or DOWN arrows to enter the desired temperature TIMER Ex a ui TIMER CON MINUTES SET MINUTES REMAINING STEAM TIMER lt ON SECONDS AIRFLOW m a DELAY SON 4 Set the Bake Steam Delay Airflow and Vent settings Press the UP or DOWN arrows next to BAKE TIMER to enter the desired time Press the UP or DOWN arrows next to STEAM TIMER to enter the desired time Press the UP arrow next to AIRFLOW DELAY to enter the desired time NOTE Steam and airflow delay settings are optional and can be left at 0 if desired Press the VENT button to vent the cavity for the entire time of the step When step is complete vent will close PROGRAM 221 STEPS o9 3 2 1 5 To store the program press the PROGRAM UP DOWN arrows to move to the next program number or press the POWER ON OFF button to exit the program mode To store additional program settings repeat steps 2 to 4 6 Record program numbers and product associated with them 14 Multi Step Programming Additional programs or steps can be entered within the original program number Up to four individual steps can be added by the operator each with different bake settings For example Program 1 has temperature bake steam and delay time settings set by the operator This is known as Step 1 After the timer times out in Step 1 the oven automatically starts the programmed bake settings in St
28. rts are hot Use care when operating servicing or cleaning the oven CONTROLS AUTO TIMER OFF SON MINUTES SET MINUTES REMAINING AIRFLOW DELAY lt On MINUTES Control Guide Advanced BUTTON ACTION DISPLAY Press to turn the oven ON or OFF Control panel displays are lit when the oven is on Oven defaults to Program 0 If oven is turned OFF and back ON within 2 minutes the oven will come up in the last mode and oven setting uices a Press to enter current time or time for The AUTO ON OFF TIMER window displays the current oven to automatically turn ON or OFF time or the time the oven will automatically turn ON when corresponding Auto On Time or OFF Auto Off Time button is pressed Press arrow keys to set the desired The AUTO ON OFF TIMER window displays the time time of oven to automatically turn ON the oven will automatically turn ON Press arrow keys to set the desired The AUTO ON OFF TIMER window displays the time time of oven to automatically turn OFF the oven will automatically turn OFF Press to turn the automatic timer ON The indicator light beside the timer ON OFF button is lit or OFF when the function is enabled Use to enter bake programs The SET TEMP window displays the set temperature The heat ON light is lit while the oven is heating The actual temperature in the oven cavity is displayed in the OVEN TEMP window BAKETMER Press arrow keys to enter the BAKE The BAKE TIMER window
29. t change air shutter settings when cleaning oven interior e Clean the oven interior and remove loose debris See Cleaning Clean the windows Bi Monthly Owner Preventive Maintenance Procedures Preventive Maintenance The mini rack oven should be kept on a regular preventive maintenance schedule Ovens require specific preventive maintenance based on usage and environmental factors The failure to have the oven properly maintained by following recommended preventive maintenance procedures may result in higher repair costs shortened equipment life or unsafe operating conditions The performance of routine preventive maintenance on any rack oven which is the owner s responsibility will help to ensure continued safe and reliable operation A preventive maintenance program is your best option for continued safe and reliable oven operation We believe that Bakery System Service is your best choice for performing preventive maintenance SERVICE AND PARTS INFORMATION Contact your authorized Bakery Systems service agency 22 REMOVING THE RACK JJ 5 PAN END LOAD REMOVABLE RACK TO REMOVE RACK FROM OVEN When oven doors are opened rack will rotate and stop in the loading position This is the same position for removing or reinstalling the rack 1 Ensure that oven is cool before trying to remove the oven rack 2 Rotate bottom plate counterclockwise to the unlocked position Shoulder bolts do not need to be loosened or remo
30. ternal power is off If the battery becomes low or dead while the external power is off the display will read 12 00 12 hr mode or 0 00 24 hr mode and will not increment until a new time is set The clock will operate with a dead or missing battery but must be set each time external power is turned on Batteries should be replaced when low or dead to avoid corrosive damage to the circuitry 10 Oven Preheat For best results the oven must be preheated to bake temperature before baking begins 1 Press the POWER ON OFF button to turn the oven on 3 Confirm that the doors are closed 4 Allow 50 minutes after the oven has reached the set temperature for the steam system to charge 5 The oven is now ready for baking operations Basic Operation A WARNING The oven and its parts are hot To prevent burns use hot pads or protective mitts when loading or unloading the oven WARNING Hot air and steam are released from the oven interior when the loading doors are opened To avoid burns open the doors slowly and keep clear of the opening 1 Preheat the oven See Oven Preheat 2 Manually select baking settings TIMER O l g i TIMER CON MINUTES SET MINUTES REMAINING s SECONDS 4 e Press the UP or DOWN arrows next to BAKE TIMER to enter the desired value Press the UP or DOWN arrows next to STEAM TIMER to enter the desired value Press the UP arrow next to AIRFLOW DELAY to enter the desired value
31. the beginning of step cycle or Food Service mode 1 to 99 seconds interval between steam functions P15 Interior Light Brightness This value is the brightness of the interior lights The higher the number the brighter the lights Range is 50 to 100 19 SETUP Clock Operation This selects either 12 hours AM PM or 24 hours real time display Press the Bake Time Up button to switch between the two types of display Temperature Setback Time This selects the elapsed time from the last timed bake to when the oven will lower the oven set temperature to the value set in P18 Range is 10 to 180 minutes Setback Temperature This selects the oven set temperature that the oven will change to when the temperature setback time has been exceeded in P17 Range is 50 F to 300 F 10 C to 149 C Lights Mode Select 1 for lights on continuously when oven is on or select 0 for automatic operation Lights will turn off automatically after 30 minutes of no user activity door opened or closed no buttons pushed Restricted Operator Mode Select 1 for restricted operator mode 0 Standard When a program is selected by the operator the bake Timer 1 Restricted Operator Mode Minutes Set window will display the total bake time of all steps in the program Standard operation only displays the minutes in the selected step When a program is selected and the Start button is pressed the P2 P22 P23 operator cannot make changes to t
32. the oven reaches the new set temperature or if door is opened when temperature is 25 F 14 C below set temperature or by pressing any button Auto ON OFF Timer Setting Clock Auto ON OFF Timer display shows the current time of day To set the clock the control must be turned on Press and hold either of the arrow buttons until the colon between the hours and minutes display stops blinking Use the up and down arrow buttons to adjust time of day After 5 seconds of no use the colon will start to blink again The oven can be set to turn itself on and off After the Auto ON OFF Timer is set the POWER ON OFF button can be pressed to turn the oven off This will not disrupt the AUTO ON OFF setting Electrical power to the oven must remain on 1 To set the oven to turn on press and hold the AUTO ON TIME button The previously entered start time will appear in the display Use the UP and DOWN arrows to adjust the start time Then release the AUTO ON TIME button 2 To set the oven to turn off press and hold the AUTO OFF TIME button The previously entered end time will appear in the display Use the UP and DOWN arrows to adjust the end time Then release the AUTO ON TIME button 3 To enable the automatic start press the TIMER ON OFF button until the indicator LED to the right of the TIMER ON OFF button is illuminated Backup Battery The clock is backed up by a lithium battery which keeps the clock circuitry operating when all ex
33. tion fan will stop running if the oven set point is reached and there is no 0 time displayed on the controller 12 FOOD SERVICE STEAM MODE This mode can be used to provide steam on a periodic basis throughout operation When this mode is enabled the STEAM TIMER controls how many seconds of steam are provided to the oven while a value entered in the Parameter 14 P14 setup controls how frequently the steam is operated To enable the Food Service Steam mode 1 Enter the parameter setup mode See Entering Setup Mode 2 Select Parameter 14 3 If the BAKE TIMER window displays 0 it is set up for Bakery Mode factory default Press the UP or DOWN arrow buttons to enter FSS mode display will change to a 3 digit number 4 Set the desired time between steam cycles using the UP or DOWN arrow buttons The range is from 300 seconds 5 min to 990 seconds approximately 17 min and increments by 10 seconds at a time 5 After setting the desired cycle press the POWER ON OFF button to save the settings 6 The STEAM TIMER will now operate in 1 second increments up to 10 seconds to set the duration of steaming Examples 300 is selected for P14 3 is entered in STEAM TIMER steam is turned on for 3 seconds every 300 seconds 5 min 990 is selected for P14 3 is entered in STEAM TIMER steam is turned on for 3 seconds every 990 seconds 17 min To return the oven to Bakery Mode repeat th
34. tton to exit the program mode 15 Changing the Programs ON POWER STEPS o9 4 02 1 1 With the oven in the OFF mode press hold the UP arrow the STEPS section While pressing and holding the UP arrow press the POWER ON button for 3 seconds When the beep sounds the oven is in program mode 2 Press the PROGRAM UP or DOWN arrows until the program number that is desired is displayed BAKE TIMER MINUTES SET MINUTES REMAINING 7 SECONDS AIRFLOW DELAY lt ON MINUTES 3 Enter the new Bake Steam and Delay Airflow settings Press the UP or DOWN arrows next to BAKE TIMER to enter the desired time Press the UP or DOWN arrows next to STEAM TIMER to enter the desired time Press the UP arrow next to AIRFLOW DELAY to enter the desired time NOTE The steam and airflow delay settings are optional and can be left at 0 if desired PROGRAM STEPS o 23 1 4 To change the settings in a Step press the UP arrow in the STEPS section and make changes in each step accordingly 5 To store the program press the PROGRAM UP or DOWN arrows to move to the next program number or press the POWER ON OFF button to exit the program mode 16 USING THE PROGRAMS 1 Press the PROGRAM UP or DOWN arrows to select the desired program number 1 99 The TEMP BAKE STEAM and AIRFLOW DELAY settings are displayed TIMER EBEN g 9 TIMER Son PROGRAM MINUTES SET MINUTES REMAINING ST
35. ved See figure 1 7 Fig 1 23 3 Lift up on bottom plate and remove from the four shoulder bolts Remove bottom plate from oven cavity See figure 2 Fig 2 4 Lift up on rack the top plate of the rack has cleared the locator pins Slide the oven rack toward yourself and out of baking chamber See figure 3 RACK TOP PLATE SUSPENDED ROTATOR SHAFT AFTER FROM ROTATOR SHAFT RACK IS REMOVED Fig 3 5 To reinstall oven rack reverse removal instructions 24 TROUBLESHOOTING The oven has been set at the factory to bake assorted product such as bagels cookies and muffins If your bake is uneven the shutters may need to be adjusted to achieve the desired results Contact your authorized Bakery Systems service agency for assistance BURNERS WILL NOT LIGHT GAS OVENS ONLY 1 Press the ON OFF button to turn the power off and wait 5 minutes 2 Make sure the gas shutoff valve is in the ON position 3 Press the ON OFF button to turn the oven on If the oven does not light on the second attempt turn the gas shutoff valve to the OFF position and call your authorized Bakery System service agency SAFETY ALARM STANDARD FEATURE NO PARAMETER SETUP REQUIRED If the temperature at the probe is in range of 570 to 600 F for 10 seconds the unit will do the following 1 Shut off all features 2 Sound an alarm 3 Flash the OVEN TEMP display actual temperature is displayed 4 Display the letters SHdn in the BAKE TIM
36. with the International Plumbing Code 2003 International Code Council ICC or to the Uniform Plumbing Code 2003 International Association of Plumbing and Mechanical Officials A WARNING Plumbing connections must comply with applicable sanitary safety and plumbing codes and provide adequate backflow protection to comply with applicable federal state and local codes Oven water supply should have a hardness of 4 to 6 grains per gallon pH of 6 5 to 8 0 and chlorides less than 30 PPM Water condition outside of these requirements may void the warranty Please consult your local water company and or water condition dealer before installing oven Connect the cold water supply to the 2 NPT incoming water connection located at the rear of the oven Water supply should have a pressure of 30 to 75 psi 207 to 517 kPa when the steam solenoid is open DRAIN CONNECTIONS Connect a 2 drain line to the 1 2 NPT drain connection located at the rear of the oven Route the drain line to a floor drain allowing a minimum 1 air gap between the drain line outlet and floor drain If oven is being installed on an HPC800 Proofing Cabinet it is recommended that separate drain lines be provided If it is necessary to interconnect the oven and proofer drains provide a vent opening in the drain line above the oven drain connection location Adequate drop must be provided such that the oven drain will not flood the proofer cabinet ELECTRICAL
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