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AOS Q COMBI & CONVECTION OVEN (C) CONVECTION OVEN (C) Service Training.

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Presentation on theme: "AOS Q COMBI & CONVECTION OVEN (C) CONVECTION OVEN (C) Service Training."— Presentation transcript:

1 AOS Q COMBI & CONVECTION OVEN (C) CONVECTION OVEN (C) Service Training

2 2 AOS OVEN RANGE 3 functional levels: A – B – C – –A: humidity control, integrated shower and automatic cleaning system, possibility of storing recipes – –B: humidity bypass control probe – –C: ISG, automatic cleaning system Sizes: 5 – –6, 10 1/1, 10 2/1, 20 1/1, 20 2/1 Electric ovens Gas ovens 400V/3N/50-60 Hz Natural gas 230V/3/50-60 Hz LPG 200V/3/50-60 Hz Power supply: 440V/3/50-60 Hz – Marine version 230V/1N/50-60 Hz 400V/3/50-60 Hz – Marine version 100V/1N/50-60 Hz 240V/3/50-60 Hz – US version 120V/1N/50/60 Hz – US version 208V/3/50-60 Hz – US version

3 3 TECNICAL DATA GAS MODELSELECTRIC MODELS DESCRIPTIONS: A = PNC B = SERIAL NUMBER (ywk000nn) C = Electrilcal Voltage D = Electrical Phases E = Frequency F = Electrical power rate G = Cavity motor Power (only USA) H = Factory model I = Amperage F = Year of prod. M = Nominal power NOPQ = Gas comsumption R = Gas exhaust type T = Commercial mode LEFT SIDE PANEL

4 4 TECNICAL DATA PNC description (section A): 12 digits: – – 9PDX oven factory – – PNC e.g.: (important to understand the model) – – status level e.g.: 07 (important to understand the oven upgrade status) – –e.g.: 9PDX Serial number description (section B) 8 digits – – first number year manufacture e.g.: 5 means 2005 – –second and third number week manufacture – –rest of digits progressive number for that week – –e.g.: means year 2005, week 25, number 12 in that week

5 5 AOS OVEN RANGE SAFETY DEVICE: Electric and gas models Safety devices: cooking chamber (CAVITY) SAFETY THERMOSTAT TEMPERATURE SENSOR TO AVOID OVERTEMPERATURE CONDITIONS: MAX temperature inside CAVITY 300°C 572 ° F temperature sensor control point 320°C 608 ° F Safety thermostat control point 340°C 644 ° F

6 6 AOS OVEN RANGE SAFETY DEVICE: ELECTRIC models Safety devices: steam generator (BOILER) TEMPERATURE SENSOR WATER LEVEL SENSOR TO AVOID OVERTEMPERATURE CONDITIONS: MAX temperature inside BOILER 100°C temperature sensor control point 125°C TO AVOID EMPTY WORK CONDITIONS: Sensor control water level.

7 7 AOS OVEN RANGE SAFETY DEVICE: GAS models Safety devices: steam generator (BOILER) TO AVOID EMPTY WORK CONDITIONS: Sensor control water level. WATER LEVEL SENSOR TO AVOID OVERTEMPERATURE CONDITIONS: MAX temperature inside BOILER 100°C temperature sensor control point 125°C Safety thermostat control point 135°C TEMPERATURE SENSOR SAFETY THERMOSTAT

8 8 WORK PROBE SAFETY PROBE BOILER FROM FAST FILLING VALVE FROM SLOW FILLING VALVE AOS OVEN RANGE: BOILER FILLING SYSTEM WITH POWER ON BOTH WATER VALVE ON WATER LEVEL REACH SAFETY PROBE FAST FILLING VALVE OFF FAST FILLING VALVE OFF SLOW FILLING VALVE ON SLOW FILLING VALVE ON BOILER CAN BE USED ( FILL MESSAGE OFF) BOILER CAN BE USED ( FILL MESSAGE OFF) WATER LEVEL REACH WORK PROBE SLOW FILLING VALVE OFF SLOW FILLING VALVE OFF WATER LEVEL DURING NORMAL WORK CONDITIONS IS CONTROLLED BY SLOW FILLING VALVE THROUGH THE WORK PROBE

9 9 AOS OVEN RANGE SAFETY DEVICE: BOILER WATER LEVEL CONTROL WATER LEVEL SENSOR S = SAFETY L = WORK WATER VALVES RED = FAST BLU = SLOW

10 10 AOS OVEN RANGE: CONTROL PANEL LEVEL A LAMBDA SENSOR (HUMIDITY CONTROL)LAMBDA SENSOR (HUMIDITY CONTROL) UTILITESUTILITES CLEANING SYSTEMCLEANING SYSTEM POSSIBILITY TO MEMORIZE RECIPESPOSSIBILITY TO MEMORIZE RECIPES FACTORY RECIPES INSIDEFACTORY RECIPES INSIDE

11 11 AOS OVEN RANGE: CONTROL PANEL LEVEL C POSSIBILITY TO USE TWO COOKING PHASESPOSSIBILITY TO USE TWO COOKING PHASES TWO COOKING CYCLES: HOT AIR OR COMBI CYCLE WITH 10 LEVEL OF HUMIDITY CREATED WITH INSTANT STEAM GENERATION (ISG)TWO COOKING CYCLES: HOT AIR OR COMBI CYCLE WITH 10 LEVEL OF HUMIDITY CREATED WITH INSTANT STEAM GENERATION (ISG) UTILITIESUTILITIES

12 Checking Probe Working Temperatures While the oven is working, it is possible to see the temperatures of the probes by pressing the service buttons as shown below:

13 13 Cooking cycles: HOT air mode STEAM mode (212 °F) Low temperature STEAM (< 212 °F) STEAM mode (> 212 °F up to 266 °F) COMBI mode AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION

14 14 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION OVEN SENSORS –Cavity probe –Bypass probe –Boiler probe –Lambda probe (only on lev. A ) –Meat probe (act as a timer when cooking with it) THERMOCOUPLE HUMIDITY SENSOR THERMOCOUPLE 6 POINT LEVEL A SINGLE POINT LEVEL B

15 15 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION HOT air mode: –Cavity probe: controlling display and CAVITY heaters –Bypass probe: controlling steam condenser device –With the humidity set (lev. A ovens), lambda probe is controlling humidity display and cavity flap

16 16 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION LEVEL A STEAM mode (212 °F) –Cavity probe: controls display –Boiler probe: act as a safety probe –Lambda probe: controls BOILER heaters –Bypass probe: controls steam condenser device

17 17 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION LEVEL A STEAM mode (< 212 °F) –Cavity probe: controls display and BOILER heaters –Boiler probe: act as a safety probe –Bypass probe: controls steam condenser device

18 18 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION LEVEL A COMBI mode –Cavity probe: controls display and CAVITY heaters –Boiler probe: act as a safety probe –Lambda probe: controls BOILER heaters –Bypass probe: controls steam condenser device

19 19 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION LEVEL C COMBI mode – –Cavity probe: controls display and CAVITY heaters – –Water valve creates 10 different levels of humidity with ISG sistem

20 20 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION LEVEL C INSTANT STEAM GENERATION HUMIDITY LEVEV DISPLAY FROM 1 to 10% WATER INLET WATER FLOW

21 21 AOS OVEN RANGE: MAIN FUNCTIONS DESCRIPTION STEAM mode (> 212 °F – up to 266 °F) –It is a combi mode with the above temperature set point and humidity set point of 100%

22 Programming the Default Parameters

23 Access Advanced Program

24 Parameters

25 HECTO PASCAL METER & GASVALVE ADJUSTMENTS AOS pages 15-18

26 Offsets AOS Pages AOS AOSQ

27 Error Codes AOSQ Page 8AOSQ

28 Main Board

29 29 AOS OVEN RANGE: WIRING DIAGRAM POWER BOARD RELAYS INPUTS OUTPUTS AUXILIARY HEATING ELEMENTS GAS OR ELECTRIC

30 30 AOS OVEN RANGE: WIRING DIAGRAM THE WIRING DIAGRAM COULD BE DIVIDED IN THE FOLLOW GROUPS: - - CAVITY MOTOR - - BOILER HYDRAULIC SYSTEM - - HEATING ELEMENT ELECTRIC OR GAS - - CLEANING SYSTEM (LEV. A/C) - - CAVITY FLAP FOR HUMIDITY CONTROL - - COOLING FAN - - CAVITY LAMP

31 31 AOS OVEN RANGE: CAVITY MOTOR CAVITY MOTOR

32 32 AOS OVEN RANGE: CAVITY MOTOR MOTOR 6 GN 1/1 10 GN 1/1 20 GN 1/1 MOTOR 10 GN 2/1 20 GN 2/1 DATA PLATE

33 33 AOS OVEN RANGE: BOILER HYDRAULIC SYSTEM BOILER WATER VALVE FAST FILLING SLOW FILLING BOILER DRAIN VALVE WATER LEVEL PROBES

34 34 AOS OVEN RANGE: BOILER HYDRAULIC SYSTEM BOILER WATER VALVE FAST FILLING SLOW FILLING BOILER DRAIN VALVE TRIPOLAR CABLE S=SAFETYL=WORKT=GROUND POWER BOARD WATER LEVEL PROBE BOILER

35 35 AOS OVEN RANGE: BOILER DRAIN VALVE CLOSED OPEN COM MANUAL DRAIN 1.Is possible to activate the manual drain for the boilier by pushing the button on control panel for 1,5 seconds During the opening phase the led under the button is on, during the closing phase the led blink. Each phase takes 60 seconds to complete. AUTOMATIC DRAIN 1.Its controlled by two parameter: boiler working time (15 minutes), boiler water temperature (122 °F). When the boiler works more than 15 minutes and the water inside is below 122°F the automatic drain will be activated. The complete phase is 2 minutes long. During drain phase OPEN message.

36 36 AOS OVEN RANGE ELECTRIC: FUNCTIONAL DIAGRAM COMBI MODE TEMPERATURE LAMBDA WATER LEVEL HEATING ELEMENT

37 37 AOS OVEN RANGE ELECTRIC: Components BOILER HEATING ELEMENT CAVITY HEATING ELEMENT CONTACTORS

38 38 AOS OVEN RANGE GAS: FUNCTIONAL DIAGRAM COMBI MODE STEP 1: PCB to Flame control device (FCD) CAVITY FLAME CONTROL DEVICE TEMPERATURE LAMBDA WATER LEVEL BOILER FLAME CONTROL DEVICE

39 39 AOS OVEN RANGE GAS: FUNCTIONAL DIAGRAM COMBI MODE STEP 2: FCD to PCB and BLOWER 230V CAVITY BLOWER CAVITY FLAME CONTROL DEVICE TEMPERATURE LAMBDA WATER LEVEL BOILER BLOWER BOILER FLAME CONTROL DEVICE

40 40 AOS OVEN RANGE GAS: FUNCTIONAL DIAGRAM COMBI MODE STEP 3: PCB to BLOWER PWM at start point CAVITY BLOWER CAVITY FLAME CONTROL DEVICE TEMPERATURE LAMBDA WATER LEVEL BOILER BLOWER BOILER FLAME CONTROL DEVICE PWM SIGNAL

41 41 AOS OVEN RANGE GAS: FUNCTIONAL DIAGRAM COMBI MODE STEP 4: FCD to GAS VALVE AND IGNITION SPARK CAVITY BLOWER CAVITY FLAME CONTROL DEVICE TEMPERATURE LAMBDA WATER LEVEL BOILER BLOWER BOILER FLAME CONTROL DEVICE PWM SIGNAL GAS VALVE AND IGNITION SPARK

42 42 AOS OVEN RANGE GAS: FUNCTIONAL DIAGRAM COMBI MODE STEP 5: FCD DETECTION FLAME CAVITY BLOWER CAVITY FLAME CONTROL DEVICE TEMPERATURE LAMBDA WATER LEVEL BOILER BLOWER BOILER FLAME CONTROL DEVICE PWM SIGNAL DETECTION FLAME

43 43 AOS OVEN RANGE GAS: FUNCTIONAL DIAGRAM COMBI MODE CAVITY BLOWER CAVITY FLAME CONTROL DEVICE TEMPERATURE LAMBDA WATER LEVEL BOILER BLOWER BOILER FLAME CONTROL DEVICE PWM SIGNAL

44 44 AOS OVEN RANGE GAS: Components PWM CONTROL GAS BLOWER GAS VALVE FLAME CONTROL DEVICE

45 45 AOS OVEN RANGE: CLEANING SYSTEM (LEV. A) CAVITY TEMPERATURE PROBE DETERGENT AND RINSE PUMP CLEANING WATER VALVE

46 46 AOS OVEN RANGE: CLEANING SYSTEM (LEV. A) DETERGENT AND RINSE PUMP CLEANING WATER VALVE WATER PRESSURE SWITCH: below 22 PSI EH20 WARNING message

47 47 AOS OVEN RANGE: CAVITY FLAP FOR HUMIDITY CONTROL MOTOREDUCER MICROSWITCH

48 48 THE SYSTEM CONTROLS THE CAVITY HUMIDITY THROUGH OPENING OR CLOSING THE FLAP IF THERE IS TOO MUCH OR NOT ENOUGH HUMIDITY INSIDE THE CAVITY. MICROSWITCH CONTROL THE FLAP POSITION. AOS OVEN RANGE: CAVITY FLAP FOR HUMIDITY CONTROL MOTOREDUCER CAVITY FLAP MOTOREDUCER MICROSWITCH

49 49 AOS OVEN RANGE: COOLING FAN COOLING FAN

50 50 AOS OVEN RANGE: COOLING FAN THE COOLING FAN IS CONTOLLED BY A PARAMETER (SBC) AND THE TEMPERATURE SENSOR POSITIONATED IN THE MAIN PCB. SBC parameter set for electric ovens 32°F SBC parameter set for gas ovens 32°F COLD AIR POWER AND USER COMPONENTS WARM AIR GAS OVEN POSITION ELECTRIC OVEN POSITION

51 51 AOS OVEN RANGE: CAVITY LAMP TRANSFORMER 12 VOLTS A.C. LIGHT BULBS 12 VOLTS A.C. 10 WATT

52 52 AOS OVEN RANGE: CAVITY LAMP LIGHT BULBS LAMP HOLDER TRANSFORMER

53 53 AOS OVEN RANGE: INSTALLATION Preliminary checks: –Electrical devices –Aeration of the kitchen –Extraction hood or similar device –Water –Gas –Drain

54 54 AOS OVEN RANGE: INSTALLATION Select the terminal block according to the power installed for the oven. Electrical connection: –Electric ovens Gas ovens

55 55 AOS OVEN RANGE: INSTALLATION Extraction hood or similar device –ELECTRIC OVEN : under extraction hood to avoid steam evacuation –GAS OVEN : under extraction hood to avoid steam evacuation two type of gas combustion exhaust TYPE A3 TYPE B13

56 56 AOS OVEN RANGE: INSTALLATION Gas connection –The inlet gas pipe is always painted in yellow Gas connection size – –AOS 061 – 062 – 101 – 102 : 1/2 inch – –AOS 201 – 202 : 1 inch

57 57 AOS OVEN RANGE: INSTALLATION Water connection pressure: 22 to 36 psi ( kPa); higher pressure values result in increased water consumption BOILER 2 CLEANING

58 58 AOS OVEN RANGE: INSTALLATION How to choose water treatment: –4 tests: –pH –Chloride (ppm) related to corrosion –Conductivity (μS/cm) –Hardness (ppm) –Water conductivity: the correct range is 50 ÷ 2000 μS/cm < 50 μS/cm: boiler overfilling > 2000 μS/cm: boiler can work in dry condition, false detection of water.

59 CONDUCTIVITY Electrical Conductivity is the ability of a solution to transfer (conduct) electric current. It is the reciprocal of electrical resistivity (ohms). Therefore conductivity is used to measure the concentration of dissolved solids which have been ionized in a polar solution such as water. The unit of measurement commonly used is one millionth of a Siemen per centimeter (micro- Siemens per centimeter or µ S/cm). This is also commonly referred to as MEGA-OHMS.

60 60 AOS OVEN RANGE: INSTALLATION DRAIN SYSTEM : AIR BREAK ONLY LEVEL A OVEN The oven drain circiut has a device call AIR BREAK in order to avoid the possibility of a back flow into the cavity from drainage. ONLY the MAIN DRAIN MUST be connected The SAFETY DRAIN MUST BE SEPARATED FROM THE MAIN DRAIN. AIR BREAK device has a inspection hole that can be used to maintain it clean. CAVITY STEAM EXHAUST CAVITY DRAIN BY PASS STEAM CONDENSER DEVICE BOILER DRAIN MAIN DRAIN SAFETY DRAIN OVER FLOW INSPECTION

61 61 AOS OVEN RANGE: INSTALLATION DRAIN SYSTEM INSTALLATION ONLY LEVEL A OVEN MAIN DRAIN connected SAFETY DRAIN separated and free The picture show the right drain system installation MAIN DRAIN SAFETY DRAIN FREE

62 62 AOS OVEN RANGE: INSTALLATION DRAIN SYSTEM CAVITY DRAIN MAIN DRAIN NOT USED STEAM CONDENSER DEVICE NOT USED CAVITY STEAM EXHAUST ONLY LEVEL C OVEN


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