Miele MasterChef KM342 User manual

© 2004 Miele
TECHNICAL INFORMATION
MasterChef Collection Cooktops

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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
3.1.2 Operating a Burner 17
3.2 KM421, KM424 and KM 427 General Operating Information 18
3.2.1 Operating a Single Burner 18
3.2.2 Operating a Variable / Extended Burner 18
3.3 KM452 General Operating Information 19
3.3.1 Overview of Controls 19
3.3.2 Touch Controls 19
3.3.3 Turning On a Burner 20
3.3.4 Auto Heat Setting 20
3.3.5 Touch Controls – Automatic Reset 21
3.3.6 Touch Controls – Manual Rest 21
3.3.7 Residual Heat Indicator 21
3.3.8 Safety Lock 22

4.0 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
4.3.1 Operation Overview of Ignition / Re-Ignition System 27
4.3.2 Burner Gas Regulators 30
4.3.3 Connecting to LP Gas 31
4.3.4 Burner Assemblies 31
4.3.4.1 Normal and Fast Burner Assembly 31
4.3.4.2 Super Burner Assembly 31
5.0 SERVICE and MAINTENANCE
5.1 Removing Cooktop for Service 34
6.0 FAULT DIAGNOSIS
6.0.1 Fault Diagnosis – Gas 35
6.0.2 Fault Diagnosis – Electric 36

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
MasterChef Cooktop Collection – List of Tables
1-1 Summary of MasterChef Collection Cooktops 1
4-1 Safety Cut Out Setting and Operating Hours 24

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Technical Information
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MasterChef Collection Cooktops
1.0 Construction and Design
1.1 Summary of MasterChef Cooktops
Table 1-1: Summary of MasterChef Collection Cooktops
Model
Number
Description of
Cooktop
Electrical
Data
Burners
(Max BTU or Watts)
KM342
5 Burner Gas
Available in Black, White &
Stainless Steel
120VAC
- Two 9000 BTU Burners
- One 12000 BTU High Speed Burner
- Two 15300 BTU Double Ring Superburners
KM344
6 Burner Gas
Available in Black, White &
Stainless Steel
120VAC
- Two 90000 BTU Burners
- Two 12000 BTU High Speed Burners
- One 15300 Double Ring Superburner
- One 16500 Double Ring Superburner
KM421
Electric - 24” Four
Burner w/
Black Ceran Finish
240VAC
(30 Amp)
- Two 1200 Watt Burners
- Two 1800 Watt Burners
KM424
Electric - 30” Four
Burner / Seven
Cooking Zones w/
Black Ceran Finish
240VAC
(40 Amp)
- One 1200 Watt Burner
- One Variable 1800 Watt Burner
- One Variable 2400 Watt Burner
- One Variable 2400 Watt Oval Burner
KM427
Electric - 36” Five
Burner / Eight
Cooking Zones w/
Black Ceran Finish
240VAC
(50 Amp)
- Two 1200 Watt Burners
- One Variable 1800 Watt Burner
- One Variable 2500 Watt Square Burner
- One Variable 2500 Watt Burner
KM452
Electric - 42” Six
Burner / Nine
Cooking Zones w/
Black Ceran Finish
240VAC
(50 Amp)
- Front Left : 1100/2500 Watts (variable)
- Rear Left and Right: 1200 Watts / each
- Rear Middle: 1800 Watts / each, 4400
with extended area on
- Front Right: 900/2400 Watts (variable)

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MasterChef Collection Cooktops
1.2 Appliance Overview
Products are listed in numeric order by model number.
1.2.1 KM342 - Overview
1. Super Burner
2. Normal Burner
3. Fast Burner
4. Grates
Figure 1-1: KM342 Overview

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MasterChef Collection Cooktops
1.2.2 KM344 – Overview
1. Super Burner
2. Normal Burner
3. Fast Burner
4. Grates
5. Large Wok Burner
6. Control Knob - Left rear burner
7. Control Knob - Center rear burner
8. Control Knob - Right rear burner
9. Control Knob - Front left burner
10. Control Knob - Front center burner
11. Control Knob - Front right burner
Figure 1-2: KM344 Overview

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MasterChef Collection Cooktops
1.2.3 KM421 - Overview
1 - 4 Single Burners
5 Control Knob - Rear / Left
6 Control Knob - Rear / Right
7 Control Knob - Front / Left
8 Control Knob - Front / Right
9 Residual Heat Indicators
Figure 1-3: KM421 Overview

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MasterChef Collection Cooktops
1.2.4 KM424 - Overview
1 Single Burner
2 Extended Burner
3 - 4 Variable Burners
5 Indicator Lights
6 Control Knobs
7 Residual Heat Indicators
Figure 1-4: KM424 Overview

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MasterChef Collection Cooktops
1.2.5 KM427 - Overview
1 & 3 Single Burners
2 Extended Burner
4 & 5 Variable Burners
6 Indicator Lights
7 Residual Heat Indicators
8 Control Knobs
Figure 1-5: KM427 Overview

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MasterChef Collection Cooktops
1.2.6 KM452 - Overview
1 & 6 Variable Burners
2 - 5 Single Burners
3 - 4 Extended burner Area
7 Touch Controls
Figure 1-6: KM452 Overview

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MasterChef Collection Cooktops
1.2.6.1 KM452 Touchpad Controls
1. Timer Control (front left burner)
2. Main On/Off Control
3. Safety Lock
4. Safety Lock Indicator
5. Timer Control (front right burner)
Figure 1-7: KM452 Controls