TECHNICAL INFORMATION MasterChef Collection Cooktops © 2004 Miele
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MasterChef Collection Cooktops - Table of Contents 1.0 CONSTRUCTION & DESIGN 1.1 Summary of MasterChef Cooktops 1 1.2 Appliance Overview 3 1.2.1 KM342 Overview 3 1.2.2 KM344 Overview 5 1.2.3 KM421 Overview 7 1.2.4 KM424 Overview 8 1.2.5 KM427 Overview 11 1.2.6 KM452 Overview 13 1.2.6.1 KM452 Touchpad Controls 14 2.0 INSTALLATION 2.0 Installation 15 3.0 COMMISSION and OPERATION 3.1 KM342 and KM344 General Operating Information 17 3.1.1 Fast Ignition System 17 3.1.
.0 DESCRIPTION of FUNCTION 4.1 Electric Cooktops – General Information 23 4.1.1 Temperature Limiters 23 4.1.2 KM452 Safety Cut Out (Controls Covered) 23 4.1.3 KM452 Safety Cut Out Feature 24 4.1.4 KM452 Touch Controls – Resetting 25 4.1.4.1 Automatic Reset 25 4.1.4.2 Manual Reset 25 4.2 Electric Cooktops – Components 26 4.2.1 Regulator 26 4.2.2 Temperature Monitor 26 4.2.3 Operational Indicator 26 4.2.4 Residual Heat Indicators 26 4.2.5 Heater Elements 26 4.3 Gas Cooktops 27 4.
MasterChef Cooktop Collection – List of Figures 1-1 KM342 Overview 3 1-2 KM344 Overview 5 1-3 KM421 Overview 7 1-4 KM424 Overview 9 1-5 KM427 Overview 11 1-6 KM452 Overview 13 1-7 KM452 Controls 14 2-1 Miele Installation Manual (Typical Cover) 15 3-1 KM452 Controls 19 4-1 Ignition / Re-Ignition System 28 4-2 Re-Ignition Control System 29 4-3 KM342 and KM344 Normal / High Speed Burner Components 30 4-4 KM342 and KM344 Wok Burner Components 31 5-1 Removing the Cooktop for Service 34
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MasterChef Collection Cooktops Technical Information 1.0 Construction and Design 1.
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MasterChef Collection Cooktops Technical Information 1.2 Appliance Overview Products are listed in numeric order by model number. 1.2.1 KM342 - Overview 1. 2. 3. 4.
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MasterChef Collection Cooktops Technical Information 1.2.2 KM344 – Overview 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11.
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MasterChef Collection Cooktops Technical Information 1.2.
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MasterChef Collection Cooktops Technical Information 1.2.
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MasterChef Collection Cooktops Technical Information 1.2.
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MasterChef Collection Cooktops Technical Information 1.2.
MasterChef Collection Cooktops Technical Information 1.2.6.1 KM452 Touchpad Controls 1. 2. 3. 4. 5.
MasterChef Collection Cooktops Technical Information 2.0 Installation For information on appliance information refer to the Miele Installation Manual and the product specific Operating Manual.
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MasterChef Collection Cooktops Technical Information 3.0 Commission and Operation 3.1 KM342 and KM 344 General Operating Information 3.1.1 Fast-Ignition-System The gas cooktops are equipped with a Fast-Ignition-System incorporating the following features: The control knob can be released once it is turned to the largest flame symbol. If the flame goes out during use, (i.e. from a draft) the burner will automatically relight.
MasterChef Collection Cooktops Technical Information 3.2 KM421, KM424 & KM 427 General Operating Information 3.2.1 Operating a Single Burner A burner without the symbol next to the control knob is turned on by pushing the control knob down and turning it clockwise or counter-clockwise to the desired setting. To adjust the setting, turn the knob without pressing down. The burner is turned off by turning the control knob clockwise or counterclockwise to "0". 3.2.
MasterChef Collection Cooktops Technical Information 3.3 KM452 - General Operating Information 3.3.1 Overview of Controls 1. 2. 3. 4. 5. Timer Control On / Off Control Safety Lock Safety Lock Indicator Timer Control Figure 3-1: KM452 Controls 3.3.2 Touch Controls The KM452 uses electronic touch controls activated by a finger. There is a separate touch control for each burner. A tone sounds to indicate that contact has been made with a control. Keep the control area clean.
MasterChef Collection Cooktops Technical Information 3.3.3 Turning On a Burner Once the cooktop is turned on, touch the "ON/OFF" control of the burner you wish to use. A 0 will appear in the burner display. Select the desired setting between 1 and 12 by touching the - or + touch controls. Note Ensure only one control is touched at a time or the cooktop may not respond.
MasterChef Collection Cooktops Technical Information 3.3.5 Touch Controls – Automatic Reset The cooktop automatically resets: after a power failure in response to changing light conditions – see note below. Note Should the cooktop be installed in an environment that is brightly lit, or completely shaded; the touch controls may not function properly. 3.3.6 Touch Controls – Manual Reset 1. Shut off power to the appliance (i.e. turn circuit breaker off). 2. Wait at least one (1) minute. 3.
MasterChef Collection Cooktops Technical Information 3.3.8 Safety Lock The Safety Lock can be activated; to prevent children or pets from turning on the burners or changing the settings. The safety lock can be activated as follows: If activated when the appliance is off - then the appliance cannot be turned on If activated while the appliance is in use, then: the safety lock is activated when the The settings for the burners and for the timer cannot be altered.
MasterChef Collection Cooktops Technical Information 4.0 Description of Function 4.1 Electric Cooktops – General Information 4.1.1 Temperature Limiters – Electric Cooktops Each burner is equipped with a temperature limiter that turns off the heating element(s) before the ceramic surface become too hot. Once the surface cools to a safe temperature, the heating element(s) automatically turn back on. The overheating protection may activated when: Turning on a burner without putting a pan on it.
MasterChef Collection Cooktops Technical Information 4.1.3 KM 452 Safety Cut-Out Feature The KM452 is equipped with a safety cut-out feature. In the event one of the burners is left on for an unusually long period of time without any control adjustments; the cooktop automatically turns off and illuminates the residual heat indicator. Refer to table 4-1 for specific operating durations.
MasterChef Collection Cooktops Technical Information 4.1.4 KM452 Touch Controls - Resetting 4.1.4.1 Automatic Reset The cooktop automatically resets: after a power failure in response to changing light conditions – see note below. Note If the cooktop be installed in an environment that is brightly lit, or completely shaded; the touch controls may not function properly. 4.1.4.2 Manual Reset 1. Shut off power to the appliance (i.e. turn circuit breaker off). 2. Wait at least one (1) minute. 3.
MasterChef Collection Cooktops Technical Information 4.2 Electric Cooktops - Components 4.2.1 Regulator On electric burner Combi-Sets user adjustable Regulators are used to control the power to the Heater Element. The power is regulated by the user via the adjustable control knobs. On the KM452 the regulator system is integrated into the electronic. 4.2.
MasterChef Collection Cooktops Technical Information 4.3 Gas Cooktops 4.3.1 Operational Overview of Ignition / Re-Ignition System Refer to figure 4-1 When the user turns on a burner the following actions occur: The Mechanical Gas Regulator (Item 2) opens when the control knob is pressed down. The Ignition Switch (Item 1) is closed when the control knob is turned to the 9 o’clock position. This allows power to be provided to Electronic (Item 7) and the Transformer (Item 8).
MasterChef Collection Cooktops Technical Information 1 2 3 4 5 6 7 8 ---- Ignition Switch Mechanical Gas Regulator Thermocouple Solenoid Ignition Electrode Burner Assembly Thermocouple Electronic Transformer Control Voltage Figure 4-1: Ignition / Re-Ignition System 28
MasterChef Collection Cooktops Technical Information Figure 4-2: Re-Ignition / Control System Data 29
MasterChef Collection Cooktops Technical Information 4.3.2 Burner Gas Regulators Each burner is user controlled via a mechanical Gas Regulator. Each Regulator contains a connection port for the Thermocouple Solenoid, that works with the Ignition / Re-Ignition System (see 4.3.1). Even if the user control is placed into the fully open position no gas can flow from the Regulator unless the Thermocouple Solenoid is energized (in the open position). 4.3.
MasterChef Collection Cooktops Technical Information 4.3.4.2 Super Burner Assembly 1. 2. 3. 4. 5.
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MasterChef Collection Cooktops Technical Information 5.0 Service and Maintenance Warning! Service and repair work should only be performed by qualified personnel; in accordance with applicable regulations. The appliance must be disconnected from the main power supply (i.e. unplugged, circuit breaker shut off) before any service work is performed. The gas supply to the appliance must be shut off before performing any service on the KM342 and KM344.
MasterChef Collection Cooktops Technical Information 5.1 Removing Cooktop for Service Should the internal components of the cooktop require service, the Cooktop must be removed. Removal Procedure Refer to Figure 5-1. 1. Shut off the electrical supply to the appliance (i.e. shut off the circuit breaker). Turn off the gas supply (if applicable) 2. Disconnect the electrical supply. Disconnect the gas (if applicable). 3. Access the underside of the appliance. 4.
MasterChef Collection Cooktops Technical Information 6.0 Fault Diagnosis 6.0.1 Fault Diagnosis - Gas Flame Not Igniting Check for: Dirty burner head parts / Parts not seated correctly Dirty Ignition Electrode / Faulty Ignition Electrode Appliance is damp (spark current grounding within the unit) Faulty Transformer Faulty Ignition Switch Incorrect type of gas supply.
MasterChef Collection Cooktops Technical Information 6.0.2 Fault Diagnosis - Electric Appliance Inoperative – New Installation Ensure appliance is correctly connected to the electrical supply. Ensure the electric supply matches the requirements of the appliance. is Displayed While the Cooktop is Off (KM352) The Residual Heat Indicator is indicating that a burner is still hot. Allow the Appliance to cool.
