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AOS Q COMBI & CONVECTION OVEN (C)

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

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

2 AOS OVEN RANGE 3 functional levels: A – B – C Sizes: 5
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 V/1N/50-60 Hz 400V/3/50-60 Hz – Marine version V/1N/50-60 Hz 240V/3/50-60 Hz – US version V/1N/50/60 Hz – US version 208V/3/50-60 Hz – US version

3 TECNICAL DATA GAS MODELS ELECTRIC 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 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 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 °F Safety thermostat control point 340°C °F

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

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

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

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

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

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

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

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

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 2.7 2.8 2.9 3.02 3.10 3.20

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

26 Offsets AOS Pages 33-38 AOSQ

27 Error Codes AOSQ Page 8

28 Main Board

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

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 AOS OVEN RANGE: CAVITY MOTOR

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

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

34 AOS OVEN RANGE: BOILER HYDRAULIC SYSTEM
WATER LEVEL PROBE TRIPOLAR CABLE S=SAFETY L=WORK T=GROUND POWER BOARD BOILER DRAIN VALVE BOILER WATER VALVE FAST FILLING SLOW FILLING

35 AOS OVEN RANGE: BOILER DRAIN VALVE
MANUAL DRAIN 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 It’s 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. CLOSED COM OPEN

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

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

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

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

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

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

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

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

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

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

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

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

48 AOS OVEN RANGE: CAVITY FLAP FOR HUMIDITY CONTROL
MOTOREDUCER 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. MICROSWITCH MOTOREDUCER CAVITY FLAP

49 AOS OVEN RANGE: COOLING FAN

50 AOS OVEN RANGE: COOLING FAN
GAS OVEN POSITION 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 COMPONENTS POWER AND USER ELECTRIC OVEN POSITION COLD AIR WARM AIR

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

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

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

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

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 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 AOS OVEN RANGE: INSTALLATION
Water connection pressure: 22 to 36 psi ( kPa); higher pressure values result in increased water consumption 1 2 1 BOILER 2 CLEANING

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 µS/cm). This is also commonly referred to as “MEGA-OHMS”.

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 STEAM CONDENSER DEVICE BOILER DRAIN BY PASS CAVITY DRAIN INSPECTION MAIN DRAIN OVER FLOW OVER FLOW SAFETY DRAIN

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


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