HOUNÖ CPE Service Manual
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HOUNÖ CPE Service Manual

Visual cooking models (gas & electric)
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HOUNÖ
SERVICE MANUAL
-
US
CPE & KPE Visual Cooking Models
(Gas & Electric)
Version 1_3_4 07/2016
Software
CAUTION: Read these instructions before servicing the oven

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Summary of Contents for HOUNÖ CPE

  • Page 1 HOUNÖ SERVICE MANUAL CPE & KPE Visual Cooking Models (Gas & Electric) Version 1_3_4 07/2016 Software CAUTION: Read these instructions before servicing the oven...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION LOCATING THE SERIAL NUMBER OF THE OVEN USING THE SMARTTOUCH DISPLAY Basic Operations SETTINGS MENU CHANGING SETTINGS ON THE USER MENU Setting the Oven Light Setting the Screen Saver Setting the Language Setting the Setup Clock Viewing the Software Version CHANGING SETTINGS ON THE SUPERUSER DISPLAY...
  • Page 3 TABLE OF CONTENTS General Error Codes Gas Error Codes APPENDIX A: BURNER ELECTRODE ADJUSTMENTS 53 APPENDIX B: MEASURING GAS PRESSURE 55 APPENDIX C: GAS BURNER SETTINGS 56 APPENDIX D: TOUCH CONTROLLER “XPE” – SET- UP AND ADJUSTMENT 59 Converting A Gas Oven to Another Gas Type APPENDIX E: GAS PRESSURE-SWITCH ADJUSTMENT 60...
  • Page 4 4 SERVICE MANUAL...

  • Page 5: Introduction

    INTRODUCTION INTRODUCTION Dear customer, Thank you for choosing a Visual Cooking oven from HOUNÖ. This manual contains the information you need to service and maintain your oven. We recommend that you read the manual and familiarize yourself with the service settings and functions of the oven.
  • Page 6 UTILITy CONNECTIONS IMPORTANT UTILITY CONNECTIONS WARNING: Improper installation, adjustment, alternation, service or maintenance can cause THE SERVICE INSTRUCTIONS CONTAINED HEREIN ARE FOR THE USE OF QUALIFIED property damage, injury INSTALLATION AND SERVICE PERSONNEL ONLy. INSTALLATION OR SERVICE By OTHER or death. Read the instlla- THAN QUALIFIED PERSONNEL MAy RESULT IN DAMAGE TO THE OVEN AND/OR INJURy TO tion, operation and main- THE OPERATOR.
  • Page 7 STANDARDS AND CODES STANDARDS AND CODES U.S. and Canadian installations The installation must conform with local codes, or in the absence of local codes, with the National Fuel Gas Code, ANSI Z223.1/NFPA 54, or the Natural Gas and Propane Installation/service Code, CSA B149.1, as applicable. Installation/service must conform with local codes, or in the absence of local codes, with the National Electrical Code, ANSI/NFPA 70-Latest Edition and/or Canadian National Electric Code C22.1 as applicable.

  • Page 8: The Oven

    LOCATING THE SERIAL NUMBER OF THE OVEN LOCATING THE SERIAL NUMBER OF THE OVEN When you order parts or request service for your Visual Cooking oven, you need the oven’s Serial Number, you can find the Serial Number and Type information on the right-hand corner post of the oven as shown in the illustration.

  • Page 9: Basic Operations

    USING THE SMARTTOUCH® DISPLAy USING THE SMARTTOUCH ® DISPLAY The SmartTouch display provides a friendly and easy way for you to operate and interact with the Visual Cooking oven. you simply use the pads of your fingertips to perform the operations.

  • Page 10: Settings Menu

    SETTINGS MENU SETTINGS MENU Before you can start the maintenance process or change settings, you have to open the Settings Menu. • On the Main Menu, touch the gear wheel icon to enter the Settings Menu. Role Access rights User Access to the User menu SuperUser Access to the User and SuperUser menus...
  • Page 11 SETTINGS MENU Menu tree • Main menu • User menu • SuperUser menu • Technician menu Main menu Recipes Favourites Manual Advanced USER MENU SUB LEVEL PARAMETER MENU Oven light continuous - 5min Screen saver 1min - 1hour Language 25 different languages Setup clock Set min - hour - date Software version...
  • Page 12 SETTINGS MENU SUPER SUP LEVEL SUB LEVEL PARAMETER USER MENU MENU MENU SETINGS Sounds Finished Sound file 138 sound files Recipe notification Pepeat 1-100 repetistions Racktimer finish Door open volume 0-100% Probe missing Insert produckt epeat delay 0,5sec - 60,0 sec Error Timer start Playback rate...
  • Page 13 SETTINGS MENU SUPER SUP LEVEL PARAMETER USER MENU MENU SETINGS Adjustments Cook and hold offset 3 - 10 degres Delta T offset 10 - 70 Degres Cook and Regain pulse interval 3 - 24 sec Proving pulse interval 12 - 44 sec Proving pulse legth Calibrate Calibrate front door...
  • Page 14 SETTINGS MENU SUPER USER SUP LEVEL PARAMETER MENU MENU SETINGS Sub system report Generats system report Install new software Application update Restart oven Restart oven yES - NO License manager Purchace the license codes Keypad from HOUNÖ to unlock/activate Advanced racktimer special features.

  • Page 15: Menu

    SETTINGS MENU TECNICIAN SUP LEVEL PARAMETER MENU MENU SETINGS Test function Oven test Main Exhaust contactor Heat Drain Cooling fan Oven light Door 1 (open - closed) Door 2 (open - closed) Oven temperature (C/F°) Drain temperature (C/F°) Exhaust (open - closed Fan test High left High right...
  • Page 16 SETTINGS MENU TECNICIAN SUP LEVEL PARAMETER MENU MENU SETINGS Test function Steam test Heat Fill Main contactore Empty Delime pump Generator temp (C/F°) Level (low - high) Level sensor input (xx) Set level (50 - 80) Wash Detergent Rinse aid Water Main contactor Heat...
  • Page 17 Electric Gas LPG, 3P Gas G20 Gas G25 HO - BL - LE - LA - DI - KB Oven type BPE - CPE - KPE Oven size 1,06 - S1,10 Wash system None - CombiWash Drain cooling On - when using water...
  • Page 18 SETTINGS MENU TECNICIAN SUP LEVEL PARAMETER MENU MENU SETINGS Oven setup Delime Deliming Start delime Delime Flush Auto delime yes - No Delime interval Off-30-60-90H Forced wash Off - 2min - 30 Houers - 40 Houers Gas settings Off delay door open Off-10-20-30sec Min speed gas 1 1000 - 8000...
  • Page 19 SETTINGS MENU TECNICIAN SUP LEVEL PARAMETER MENU MENU SETINGS Middle east yes - No Update platform Demo mode yes - No Demo mode acc. 1 -5 Load help from USB yes - No Touch sensitivity 1 - 8 SERVICE MANUAL 19...

  • Page 20: Setting The Oven Light

    CHANGING SETTINGS ON THE USER MENU CHANGING SETTINGS ON THE USER MENU you change the basic settings from the User Menu. • On the Settings Menu, touch the User button. Setting the Oven Light To set oven light, touch Oven light. Drag your finger up or down to select Continuous or 5 min., and then touch OK.

  • Page 21: Setting The Setup Clock

    SETTINGS MENU Setting the Setup Clock To set the clock, touch Setup clock. In the hour and min. lists drag your finger up or down to select the desired time. In the day, month and year lists drag your finger up or down to select the desired date.

  • Page 22: Setting Alarm Sounds

    CHANGING SETTINGS ON THE SUPERUSER MENU CHANGING SETTINGS ON THE SUPERUSER MENU you can access the following areas on the super user display. • Sounds (See Setting Alarm Sounds on page 22) • Settings (See Changing Settings on page 24) •...
  • Page 23 CHANGING SETTINGS ON THE SUPERUSER MENU Set the desired sound properties. For each event, you can specify the following properties. Property What it does Sound Set Used to select the desired sound set for the alarm. The default sound set is Android. Sound File Used to select the specific sound from the set.
  • Page 24 CHANGING SETTINGS ON THE SUPERUSER MENU Changing Settings The following describes the settings you can change via the SuperUser Menu. HACCP Logging you can specify whether you want the oven to automatically store and save HACCP (Hazard Analysis and Critical Control Points) data about the preparation process. If you enable this option, you can access information about production time and duration as well as production temperature and core temperature.
  • Page 25 CHANGING SETTINGS ON THE SUPERUSER MENU Core Temperature you use the Core temp. setting to specify whether the oven comes with a core temperature probe. The default setting is Yes. On the SuperUser display, touch Settings, and then touch Core temp. Drag your finger up or down to select Yes or No, and then touch OK.

  • Page 26: Adjustments

    CHANGING SETTINGS ON THE SUPERUSER MENU Temperature Unit you use the Temp. unit setting to specify which temperature unit you want to use. The default setting is Celsius. On the SuperUser display, touch Settings, and then touch Temp. unit. Drag your finger up or down to select Celsius or Fahrenheit, and then touch OK. Adjustments Cook and Hold Offset you use the Cook and hold offset setting to specify the difference between the core...
  • Page 27 CHANGING SETTINGS ON THE SUPERUSER MENU Reheat Pulse Interval you use the Reheat pulse interval setting to specify the interval in seconds between injec- tions of water during the regeneration process. The injection itself lasts 1/10 of a second. The default setting is 8 seconds. On the SuperUser display, touch Adjustments, and then touch Reheat pulse interval.
  • Page 28 CHANGING SETTINGS ON THE SUPERUSER MENU Calibrating ClimaOptima Auto Humidity you use the Calibrate auto humidity setting to calibrate the ClimaOptima humidity sensor. The oven has been calibrated prior to delivery, but we recommend that you calibrate the oven after the oven has been installed in its proper location. Calibration is Required After the Following Events: •...

  • Page 29: Calibrating The Oven Door Sensor

    CHANGING SETTINGS ON THE SUPERUSER MENU Step Time Temp. (Celsius) Oven Exhaust Cal. Approx. 15 min. Open Cal. Approx. 2 min. Open Cal. Approx. 2 min. Closed Cal. Approx. 8 min. Open Cal. Approx. 3 min. Closed Cal. Approx. 5 min. Closed Cooling Approx.

  • Page 30: Logs And Statistics

    CHANGING SETTINGS ON THE SUPERUSER MENU Open the door so that the door is in the first step open position and then touch Press when door open. Look at the Threshold and Actual values. • The Threshold value displays the value that marks the shift between status door open and the status door closed.
  • Page 31 CHANGING SETTINGS ON THE SUPERUSER MENU Fault Statistics The Fault statistics list displays a list of all error codes, the number of times each error code has been displayed, and the date the error code was last displayed. On the SuperUser display, touch Logs and statistics, and then touch Fault statistics.

  • Page 32: Menu

    SETTINGS ON THE TECHNICIAN MENU SETTINGS ON THE TECHNICIAN MENU you can access the following areas on the Technician Menu. • Test Functions (See Using the Test Functions on page 32) • Oven setup (See Changing the Oven Set-up on page 37) •...
  • Page 33 SETTINGS ON THE TECHNICIAN MENU Testing the Oven On the Technician display, touch Test functions, and then touch Oven. Touch each button in turn to test the functions. The button turns green if the component is active. At the bottom of the display the status of a number of input functions is displayed.
  • Page 34 SETTINGS ON THE TECHNICIAN MENU Testing the Steamer On the Technician display, touch Test functions, and then touch Steam. Touch Empty to empty the steam generator, and then ensure that the displayed Level value is Low. Touch Fill to fill the steam generator, and then ensure that the displayed Level is High.
  • Page 35 SETTINGS ON THE TECHNICIAN MENU Testing the External Ventilator and the Restart Lamp On the Technician display, touch Test functions, and then touch Miscellaneous. Touch External vent, to test if the external ventilation is working. The outlet is named terminal no.2. When external ventilation is activated, the outlet is active during program performance and until 10 minutes after the program has completed.
  • Page 36 SETTINGS ON THE TECHNICIAN MENU Testing the Alarm This function tests the thermo-switch circuit. On the Technician display, touch Test functions, and then touch Main alarm. Touch Main contactor. If all status values are displayed in green and the status is On, it indicates that the alarm is working properly.

  • Page 37: Changing The Oven Set-Up

    On the Technician display, touch Oven setup, and then touch Oven type. Slide your finger up or down to select the correct oven type: BPE, CPE, or KPE, and then touch OK. you can see the oven type on the serial plate located on the oven exterior on the bottom right side.

  • Page 38: Gas Settings

    SETTINGS ON THE TECHNICIAN MENU Setting the ClimaOptima function On the Technician display, touch Oven setup, and then touch Auto humidity. Slide your finger up or down to select Yes or No. Select Yes to enable ClimaOptima and No to disable ClimaOptima. Setting Up a Pass-through Oven Use this function to specify whether the oven is a pass-through oven that can be loaded and unloaded both from the front and the rear side.
  • Page 39 SETTINGS ON THE TECHNICIAN MENU Setting Description Min speed gas 1 Touch Min speed gas 1, and the slide your finger up or down to select the preferred value, and then touch OK. Start speed gas 1 Touch Start speed gas 1, and the slide your finger up or down to select the preferred value, and then touch OK.

  • Page 40: Making Temperature Adjustments

    SETTINGS ON THE TECHNICIAN MENU Making Temperature Adjustments Use this function to adjust the oven or the core temperature offsets. This is useful when the temperature should correspond with the temperature of a 3rd party probe. The default setting is 0. Adjust the Oven Temperature On the Technician display, touch Adjustments.

  • Page 41: Changing Oven Settings

    SETTINGS ON THE TECHNICIAN MENU Changing Oven Settings On the Technician display, touch Settings. you can now change the following settings. Setting Description Custom mode Settings only applicable to a specific customer. Soap level monitoring Yes/No setting. Select yes to display a message when the rinse or soap containers must be changed.

  • Page 42: Deliming Settings

    SETTINGS ON THE TECHNICIAN MENU Deliming Settings The Delime program is used to descale the steam generator. This function is not used if the oven is connected to a water treatment filter. Starting the Deliming Program On the Technician display, touch Delime. To start the delime program, touch Delime Program.

  • Page 43: Making Corrections To Bake Time

    SETTINGS ON THE TECHNICIAN MENU Flushing the descaler On the Technician display, touch Delime. Touch Delime Program. Touch Delime. Touch Delime Flush. The flushing program starts, and the displays shows the current step of the process. Making Corrections to Bake Time Use this function to enable or disable automatic recalculation of the bake time in case of mistakes such during the baking process.

  • Page 44: Enabling Demo Mode

    SETTINGS ON THE TECHNICIAN MENU Specifying Middle East Specific Settings Enabling this setting disables all recipes containing pork. On the Technician display, touch Middle East. Touch Yes, and then touch OK. Enabling Demo mode When you want to use the oven for demonstration purposes, you should enable demo mode.
  • Page 45 SETTINGS ON THE TECHNICIAN MENU SERVICE MANUAL 45...
  • Page 46 CLEANING CLEANING Daily cleaning of the oven is recommended for hygienic reasons and to avoid interruptions of operation. The design of the HOUNÖ ovens allows quick and easy cleaning. The oven chamber is made of all-welded stainless steel, which makes it splash proof. you will therefore find the easy- to-use handshower (optional extra), which is located under the front panel, very suitable for interior cleaning.
  • Page 47 CLEANING Cleaning the Oven Exterior Use a soft, damp cloth and a liquid detergent to clean the oven cabinet on the outside, 2. Remove the door sealing to clean under and around the door, 3. Treat the surface with HOUNÖ STEEL OIL to protect it. The steal oil is available from your supplier.(0.5 litre: part No.
  • Page 48 CLEANING Cleaning the Jet Heads you have to clean the jet heads regularly, when you have used CombiSmart and ClimaOptima. This must also be cleaned regularly. The Visual Cooking oven comes with two sets of jet heads. While you clean one set, you can replace them with the other. Unlock the screws to dismount the jet heads.
  • Page 49 CLEANING Cleaning the Filter The filter is located below the control compartment in front of the spray hose. you have to unscrew and clean the filter under the front panel on a weekly basis. you can clean the filter manually or in a dishwasher. Important: If the filter is not cleaned, the computer may overheat and the oven will fail.
  • Page 50 ERROR CODES ERROR CODES ERROR CODE DESCRIPTION Generator too hot. Oven too hot. Fan too hot. Drain too hot. Oven sensor defective. Core probe not connected. Generator Sensor defect. Drain sensor defective. Water shortage. SSR to hot. Generator too hot. Fan to slow.
  • Page 51 ERROR CODES ERROR CODES ERROR CODE DESCRIPTION Main Alarm. Exhaust error. Error with 24V. Clima optima. Press switch active. Press switch off. Gas valve failure. Gas fan no rpm. Gas fan speed error. Ignition error. Gas error. Gas stop. Press switch activ 2. Press switch activ 2.

  • Page 52: Troubleshooting

    TROUBLESHOOTING ERROR CODES TROUBLESHOOTING ERROR CODES Troubleshooting procedure step by step on error codes. If the oven displays an error code, try the solutions below before contacting HOUNÖ technical service. After each step is carried out, be sure to test if the oven is working again. Error Code 3 The generator thermo switch has tripped because the temperature has risen above 135°C/275°F.
  • Page 53 TROUBLESHOOTING ERROR CODES Error Code 4 The overheating switch of the oven chamber is off because the oven chamber temper- ature has risen above 350°C/662°F. Press the Q1 button at the bottom of the oven to reset the switch. If the oven comes with to fan motors, there are 2 overheating switches. Steps Check list Solution...
  • Page 54 ERROR CODES Error Code 6 The drain temperature has been above 75°C/167°F for more than 5 minutes. It is normally kept below 60°C/140°F. Steps Check list Solution Check that the water is turned on. Check that the water supply connected to the oven is cold and not hot.
  • Page 55 ERROR CODES Error Code 8 The probe is broken or is not connected properly. The program cannot be used until the error has been corrected. Steps Check list Solution Go to the test menu (miscellaneous) to see which information is displayed. Check the cable and the cable plugs and change the plug if necessary.
  • Page 56 ERROR CODES Error Code 10 The temperature sensor in the drain is broken. The oven can still be used, but the error has to be corrected as soon as possible. Steps Check list Solution Go to the test menu (oven) to see which temperature is displayed.
  • Page 57 ERROR CODES Error Code 12 The heat sink for the solid state relay is too hot because the temperature has risen above 120°C/248°F. Let it cool off for 20-30 minutes and then retry. Steps Check list Solution Go to the test menu (Main Alarm) to see which information is displayed.
  • Page 58 ERROR CODES Error Code 14a + 14B The rotational speed of the fan is too slow. (a=lower fan B=upper fan) Steps Check list Solution Verify that the intake filter is not blocked. Clean if necessary. Go to the test menu and test if the fan motor is running.
  • Page 59 ERROR CODES Error Code 15 The CPU board temperature has risen above 60°C/140°F. Steps Check list Solution Go to the test menu to see which infor- mation the computer displays. Check whether the ambient temperature is Move the oven if necessary, too high.
  • Page 60 ERROR CODES Error Code 19 An internal error occurred. The oven server process is not responding. Oven server process failed. Steps Check list Solution Restart the oven. Change the computer. Error Code 20 An internal error occurred. A communication failure occurred between the computer and the IO board.
  • Page 61 ERROR CODES Error Code 22 Program interrupted. There was a power outage while the program was running. The power outage lasted for so long that the program cannot be restarted. Steps Check list Solution The oven can be set up to restart after a power outage.
  • Page 62 ERROR CODES Error Code 24 Empty error. The steam generator could not be emptied during flushing. The level sensor reports high water level when the generator is emptied. Drain maybe blocked. Steps Check list Solution Go to the test menu and activate the If pump is running find the boiler empty pump.
  • Page 63 ERROR CODES Error Code 26 The ClimaOptima sensor signal out of range. Steps Check list Solution Go to the test menu (fan test) and check that the signal from the pressure sensor variates accordingly to the fan speed. Check the cable and the cable plugs. change the plug if necessary, and then test if the sensor is working.
  • Page 64 ERROR CODES Error Code 28 An invalid combination of the mains alarm has been detected. The mains alarm is not displayed correctly. Steps Check list Solution Go to the test menu (alarm test) to see which one of the over heat safety switches is not sending a feedbak signal to the I/O board conector J14.
  • Page 65 ERROR CODES Error Code 34 The water pressure is too low. (les then 1,5 bar) Steps Check list Solution Pull a wire one of the water pressure switch If yES: replace the sensor. to check if the signal changes to yES Check that the water is turned on.
  • Page 66 ERROR CODES Error Code 39 There is insufficient memory to run the selected operation. Steps Check list Solution If possible, delete some HACCP files. Error Code 40 The IO board temperature has been too high. Note that this is a warning. If the temper- ature continues to rise, the oven will stop and display error code 16.
  • Page 67 ERROR CODES Error Code 44 Exhaust error. At every start up the CPU makes the valve run a reference round. Steps Check list Solution Use the technicians test menu, oven test. Test if the exhaust valve works and the switch send a signal back to the CPU. If the motor is rotating the valve but there If exhaust signal changes in is no on/off signal from the switch.
  • Page 68 ERROR CODES Error Code 46 ClimaOptima sensor signal to high. Steps Check list Solution Replace climaotima sensor, and recalibrate the ClimaOptima function. 68 SERVICE MANUAL...

  • Page 69: Gas Error Codes

    ERROR CODES Gas Error Codes Error codes from number 50 to 67 are gas oven specific. Error 50/60 Pressure switch error. The pressure switch is active at start (timeout 20 sec.) Steps Check list Solution Go to the test menu, and adjust the Change the pressure switch.
  • Page 70 ERROR CODES Error 52/62 Gas valve failure. The gas valve does not open after 5 startup attempts (timeout 20 sec.) Steps Check list Solution Go to the test menu. Perform the startup sequence. Check that the controller receives If there is no feedback, feedback from the pressure switch and the perform the startup gas valve.
  • Page 71 ERROR CODES Error 54/64 Fan error. The gas fan RPM before ignition is not correct. Steps Check list Solution Go to the test menu. Test the gas fan. If no, test the gas fan. Verify Verify that the RPMs are registered. that there is power input.
  • Page 72 ERROR CODES Error 56/66 Gas failure. No flame has been detected after 5 attempts. Steps Check list Solution Check if gas supply is available. Check, clean, or change the electrode or burner. Go to the test function. Perform the startup sequence. Error 57/67 STOP during operation.
  • Page 73 ERROR CODES Error 69 Deliming needed soon Steps Check list Solution The timer for the steam generator is Prepar to run the deliming aproching the preset limit 30/60/90 program to descal the steam houers generator Error 70 Deliming flush needed Steps Check list Solution...
  • Page 74 ERROR CODES Error 80 Force wash soon needed Steps Check list Solution Interval: 30 h : warning after 24 h Wash the oven. us one of the Interval: 40 h: warning after 32 h washing programs soon. Error 81 Force wash needed Steps Check list Solution...
  • Page 75 ERROR CODES Error 84 User ignored filter change. Steps Check list Solution User has ignored to change the Hydro Change the Hydro Shield Shield water filter. water filter. Neglect to change the Hydro Shield water filter will jeopardize the warranty SERVICE MANUAL 75...

  • Page 76: Appendix A: Burner Electrode Adjustments

    APPENDIX A: BURNER ELECTRODE ADJUSTMENTS APPENDIX A: BURNER ELECTRODE ADJUSTMENTS Oven size 1.06 13kW 8 mm 4 mm 73 mm 76 SERVICE MANUAL...
  • Page 77 APPENDIX A: BURNER ELECTRODE ADJUSTMENTS Oven size 1.10, 1.20, 2.10, 2.20 21 kW, 42kW, 24kW, 48kW 8 mm 4 mm 78 mm SERVICE MANUAL 77...

  • Page 78: Appendix B: Measuring Gas Pressure

    APPENDIX B: MEASURING GAS PRESSURE APPENDIX B: MEASURING GAS PRESSURE Prepare gas-pressure meter. Open the gas-test nipple using a flat-headed screwdriver. Turn the screw counter-clockwise. When the gas-test nipple is opened, gas will escape. Be prepared and have the gas-pressure meter ready before opening the test nipple. Measure static the gas pressure.

  • Page 79: Appendix C: Gas Burner Settings

    APPENDIX C: GAS BURNER SETTINGS APPENDIX C: GAS BURNER SETTINGS When you adjust the gas burner, the tolerances are as follows: Max. rpm setting: ±0.2% Min. rpm setting: +/-0.2% Adjustment “CE” gas ovens (burner 1) Houno Gas Oven Adjustment Settings Convection Burner 1 “Bottom”...
  • Page 80 APPENDIX C: GAS BURNER SETTINGS Adjustment “ETL” gas ovens (burner 1) Houno Gas Oven Adjustment Settings Convection Burner 1 “Bottom” %, CO %, CO RPM Adjustement Air Proving “MAX” RPM “MIN”, RPM normal operation Switch - ON Heat Gas inlet “u16”...
  • Page 81 APPENDIX C: GAS BURNER SETTINGS Adjustment “ETL” gas ovens (burner 2) Houno Gas Oven Adjustment Settings Convection Burner 2 “Top” %, CO %, CO RPM Adjustement Air Proving “MAX” RPM “MIN”, RPM normal operation Switch - ON Heat Gas inlet “u17”...

  • Page 82: Touch Controller "Xpe" - Set- Up And Adjustment

    APPENDIX D: TOUCH CONTROLLER “XPE” – SET-UP AND ADJUSTMENT APPENDIX D: TOUCH CONTROLLER “XPE” – SET-UP AND ADJUSTMENT Converting A Gas Oven to Another Gas Type When you convert to another gas type, never adjust the offset governor “Minimum”. Make the following adjustment on the “Max rpm” screw •...

  • Page 83: Appendix E: Gas Pressure-Switch Adjustment

    APPENDIX E: GAS PRESSURE-SWITCH ADJUSTMENT APPENDIX E: GAS PRESSURE- SWITCH ADJUSTMENT Turn off the gas inlet. If the gas to the oven is not turned off before the pressure switch is adjusted, the oven may ignite during the adjusting process creating high CO values.
  • Page 84 APPENDIX E: GAS PRESSURE-SWITCH ADJUSTMENT APPENDIX E: GAS PRESSURE-SWITCH ADJUSTMENT Pressure-switch table OFF->ON Oven types Tolerance 1.06 3100 ±100 1.10 2300 ±100 1.20 2300 ±100 2.06 2800 ±100 2.10 2300 ±100 2.20 2300 ±100 9. If the registered value is lower than the value in the table, you have to adjust thepressure switch clockwise.

  • Page 85: Appendix F: Gas Sequence Diagram

    APPENDIX F: GAS SEQUENCE DIAGRAM APPENDIX F: GAS SEQUENCE DIAGRAM SERVICE MANUAL 85...

  • Page 86: Appendix G: Gas Components Position

    APPENDIX G: GAS COMPONENTS POSITION APPENDIX G: GAS COMPONENTS POSITION Gas components position 1.06, 1.10, 2.10, 2.14 Interface relay Coil gas-air unit Burner electrode Ignition trafo Gas-air unit Dungs Pressure switch control box 86 SERVICE MANUAL...
  • Page 87 APPENDIX G: GAS COMPONENTS POSITION Gas component position 1.20, 2.20 Pressure switch Interface relay Coil gas-air unit Burner electrode Ignition trafo Gas-air unit Dungs control box Interface relay Coil gas-air unit Burner electrode Ignition trafo Gas-air unit Pressure switch SERVICE MANUAL 87...

  • Page 88: Appendix H: Gas Components

    APPENDIX H: GAS COMPONENTS APPENDIX H: GAS COMPONENTS    Gas-Air unit Coil gas-air unit Cable coil Black 9kW White 18kW Red 27kW Voltage 230VAC 120VAC 230VAC 120VAC 230VAC 120VAC 230VAC 120VAC 230VAC 120VAC Part no. 32700180 32700177 32700181 32700178 32700182 32700179 32700170 32700173...

  • Page 89: Identifying Gas-Air Units And Coil

    APPENDIX I: IDENTIFyING GAS-AIR UNITS AND COIL APPENDIX I: IDENTIFYING GAS-AIR UNITS AND COIL 13 kW - Black 21-24 kW – Red yellow: 120VAC - Coil Red: 230VAC – Coil SERVICE MANUAL 89...

  • Page 90: Error Codes On Dungs' Control

    APPENDIX J: ERROR CODES ON DUNGS’ CONTROL BOX APPENDIX J: ERROR CODES ON DUNGS’ CONTROL BOX 90 SERVICE MANUAL...
  • Page 91 APPENDIX J: ERROR CODES ON DUNGS’ CONTROL BOX SERVICE MANUAL 91...
  • Page 92 APPENDIX J: ERROR CODES ON DUNGS’ CONTROL BOX 92 SERVICE MANUAL...
  • Page 93 APPENDIX J: ERROR CODES ON DUNGS’ CONTROL BOX SERVICE MANUAL 93...

  • Page 94: Service And Repair

    SERVICE AND REPAIR SERVICE AND REPAIR • All maintenance and repair must be carried out by qualified installation and service personnel only. Installation or service by other than qualified personnel may result in damage to the oven and/or injury to the operator. •...
  • Page 95 SAFETy SAFETY Please read the safety instructions carefully. • Ensure that installation is carried out by qualified installation and service personnel only. • Read, understand, and follow the instructions for use. • Place trays filled with hot liquid at the bottom runners of the oven chamber and practice extreme caution when removing the tray from the oven chamber.
  • Page 96 HOUNÖ A/S ALSVEJ 1 DK-8940 RANDERS SV DENMARK T: +45 8711 4711 E: houno@houno.com www.houno.us PART OF...

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