Merrychef eikon e2s, eikon e2s Classic, eikon e2s Trend Service and Repair Manual CE – Original, GBR

Microwave Combination Oven

Read instructions before use

Merrychef eikon e2s

Service and Repair Manual CE – Original, GBR

Part Number 32Z3935

Contents

Contents
	1	General information	4
1.1		EC Declaration of Conformity	5
1.2		Environmental protection	6
1.3		Important Information	6
1.4		Identifying your microwave combination oven	7
1.5		Structure of technical documentation	8
1.6		About this Service and Repair Manual	8

2	Design and function	10
2.1	Design and function of the microwave combination oven	11
2.2	Layout and function of the operating panel	12
3	For your safety	13
3.1	Basic safety code	14
3.2	Intended use of your microwave combination oven	21
3.3	Warning signs on your microwave combination oven	22
3.4	Summary of hazards	24
3.5	Hazards and safety precautions when moving the appliance	26
3.6	Hazards and safety precautions when setting up the appliance	27
3.7	Hazards and safety precautions during installing	28
3.8	Hazards and safety precautions when preparing appliance for use	29
3.9	Hazards and safety precautions during cleaning	30
3.10	Hazards and safety precautions during servicing and repair	32
3.11	Hazards and safety precautions when taking the appliance out of service	34
3.12	Safety devices	35
3.13	Requirements to be met by personnel and working positions	37
3.14	Personal protective equipment	38
4	Setting up the appliance	40
4.1	Safe working when setting up the appliance	41
4.2	Requirements for the installation location	42
4.3	Mounting the appliance on a work surface	43
5	Installation	44
5.1	Safe working during electrical installation	45
5.2	Planning the electrical installation	46
5.3	Electrical installation requirements	47
6	Preparing the appliance for use	49
6.1	Safe working when preparing the appliance for use	50
6.2	Procedure for preparing the appliance for use	52
6.3	Start page	54
6.4	The keyboard screen	55
6.5	Using a USB stick	56
7	Cleaning procedures	58
7.1	Daily cleaning tasks	59
7.2	Cleaning chemicals	59

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Contents

7.3	Items required for cleaning	60
7.4	Safe working when cleaning	61
7.5	Cleaning procedures	63
7.5.1	Cool down procedure before cleaning	64
7.5.2	Cleaning instructions	66

8	Technical data	71
8.1	Technical data	72
8.2	Dimensional drawings	74
9	Diagnostics	75
9.1	Checking the condition of your appliance	76
9.2	Errors and diagnostics	80
9.3	Fault finding	87
10	Tests	91
10.1	Safe working when testing components	92
10.2	Requirements	94
10.3	Testing selected components (casing mounted)	94
10.4	High voltage components (casing removed)	103
10.5	Mains voltage components (casing removed)	106
11	Oven firmware	107
11.1	Firmware Updates	107
12	Replacing components	123
12.1	Safe working when replacing appliance parts	124
12.2	Overview	126
12.3	Removing / fitting the casing	131
12.4	Removing / fitting the door assembly	134
12.5	Replacing a magnetron	139
12.6	Replacing the cooling fan	144
12.7	Replacing the QTS (Quick Touch Screen) assembly	146
12.8	Replacing the SRB (Smart Relay Board)	151
12.9	Replacing the touchscreen overlay	153
12.10	Adjusting the door microswitches / interlocks	155
12.11	Replacing the stirrer motor	157
12.12	Replacing the convection fan motor	161
12.13	Replacing a transformer (high voltage)	163
12.14	Removing the convection fan motor speed controller	166
12.15	Overview – further components	168
13	Circuit diagrams and boards	174
13.1	SRB / QTS circuit boards	175
13.2	Circuit diagrams	178
14	Commissioning the appliance	180

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1 General information

1 General information

Purpose of this chapter

This chapter shows you how to identify your microwave combination oven and provides guidance on using this manual.

Contents
This chapter contains the following topics:
		Page
EC Declaration of Conformity		5
Environmental protection		6
Important Information		6
Identifying your microwave combination oven		7
Structure of technical documentation		8
About this Service and Repair Manual		8

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1 General information

1.1 EC Declaration of Conformity

Manufacturer

Authorised Representative (Brand Headquarters)	Factory
Manitowoc Foodservice UK Limited	Manitowoc Foodservice UK Limited
Ashbourne House, The Guildway,	Provincial Park, Nether Lane,
Old Portsmouth Road	Ecclesfield
Guildford GU3 1LR	Sheffield S35 9ZX
United Kingdom	United Kingdom

Equipment details

Generic Model Number	eikon e2s
Description	Commercial Combination Microwave Oven

Declaration of Conformity with directives and standards

The manufacturer hereby declares that this commercial combination microwave oven complies with the following directives and standards.

Compliance with Directives

This commercial combination microwave oven complies with the relevant provisions of the following European Directives:

EMC 2004/108/EC

RoHS 2011/65/EU

MD 2006/42/EC

Harmonised standards applied

This commercial combination microwave oven complies with the relevant requirements of the following European standards:

EN 60335-2-90:2006 +A1 (excluding Annex EE ship board requirements) EN 60335-1:2012

EN 62233:2008

EN 55014-2:1997+A2:2008 in accordance with Category IV requirements

- Electrostatic discharge	IEC 61000-4-2
- Radiated RF interference	IEC 61000-4-3
- Fast transient common mode, AC port	IEC 61000-4-4
- Mains surge, AC port	IEC 61000-4-5
- RF current, common mode, AC port	IEC 61000-4-6
- Mains voltage dips and interruptions	IEC 61000-4-11
- Flicker	IEC 61000-3-11
EN 55011:2009+A1:2010 Classification: Class A, Group 2
- Mains terminal disturbance voltage	Table 6
- Radiated disturbance, magnetic field	Table 9
- Radiated disturbance, electric field	Table 9
AS/NZS CISPR 11
- Radiated disturbance	CISPR 11:2009 Class A
- Conducted disturbance	CISPR 11:2009 Class A

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1 General information

Manufacturer

Place and Date of issue: Guildford, 31st July 2015

Mr Philip Radford

Vice President Products: Merrychef (on behalf of the Authorised Representative)

Quality and environmental management

Manitowoc Foodservice UK Limited (Sheffield) employs a quality management system in accordance with EN ISO 9001:2008 and a certified environmental management system in accordance with EN ISO 14001.

1.2 Environmental protection

Statement of principles

Our customers' expectations, the legal regulations and standards and our company's own reputation set the quality and service for all our products.

We have an environmental management policy that not only ensures compliance with all environmental regulations and laws, but also commits us to continuous improvement of our green credentials.

We have developed a quality and environmental management system in order to guarantee the continued manufacture of high-quality products and to be sure of meeting our environmental targets.

This system satisfies the requirements of ISO 9001:2008 and ISO 14001:2004.

Environmental protection procedures

We observe the following procedures:

Use of RoHS2-compliant products

REACH chemical law

Recycling of electronic waste

Environmentally friendly disposal of old appliances via the manufacturer

Join us in our commitment to protect the environment.

1.3 Important Information

Users are cautioned that maintenance and repairs should be performed by a Merrychef® authorised service agent using genuine Merrychef® replacement parts. Merrychef® will have no obligation with respect to any product that has been improperly installed, adjusted, operated or not maintained in accordance with national and local codes or installation instructions provided with the product, or any product that has its serial number defaced, obliterated or removed, or which has been modified or repaired using unauthorised parts or by unauthorised service agents. For a list of authorised service agents please refer to your distributor.

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1 General information

1.4 Identifying your microwave combination oven

Position of nameplate

The nameplate is located on the rear of your microwave combination oven.

					1	Model number
						eikon e2s
					2	Elements of the item	Label	Meaning
						number
						Model	e2s
						Power output	D	2200W
						convection
							F	2200W / 1300W
							G	2200W / 900W
						Power output	B	2000W (High Power
						microwave		version)
							X	1000W (Standard Power
								version)
						Voltage	30	230V
							MV5	220-230V / 50Hz
							MV6	208-240V / 60Hz
							00	200V
							20	220V
						Frequency	5	50Hz
							6	60Hz
						Lead	A - Z	Example: H = L+N+E
								(4mm EU)
						Plug	A - Z	Example: E = 3-pin plug
						Communication	L	USB + LAN
							U	USB
						Version	A, B	A, B (pre-production)
							1, 2, ...	1, 2, ... (serial production)
						Accessory / Customer	CF	"Trend" exterior
							CL	"Classic" exterior
							WW	Specific customer
						Region / Country	EU	Europe
							US	United States of America
					3	Elements of the	Label	Meaning
						serial number
						Year of manufacture	15	2015
							16, ...	2016, ...
						Month of manufacture	01	January
							02, ...	February, ...
						Place of manufacture	2130	Sheffield (UK)
						Production number	12345

4Technical data

5Date of manufacture

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1 General information

1.5 Structure of technical documentation

Contents

The technical documentation for the microwave combination oven includes the following documents:

Installation and Operating Manual

Service and Repair Manual (this document)

1.6About this Service and Repair Manual

Purpose

This Service and Repair Manual is intended for all people who work with the microwave combination oven, and provides them with the necessary information for carrying out servicing and repair work properly and safely.

Who should read the Service and Repair Manual

Name of target group	Tasks
Trained service technicians	All servicing and repair work

Parts of this document that must be read without fail

If you do not follow the information in this document, you risk potentially fatal injury and property damage.

To guarantee safety, all people who work with the microwave combination oven must have read and understood the following parts of this document before starting any work:

The chapter 'For your safety' on page 13

The sections that describe the activity to be carried out

Chapters in the service and repair manual

Chapter/section	Purpose
General information		Shows you how to identify your appliance
		Provides guidance on using this Service and Repair Manual
Design and function		Specifies the intended use of the appliance
		Explains the functions of the appliance and shows the position of its compo-
		nents
For your safety		Describes the hazards posed by the appliance and suitable preventive
		measures
		It is important that you read this chapter carefully.
Moving the appliance		Specifies the basic appliance dimensions
		Specifies the requirements for the installation position
		Explains how to convey the appliance to the installation position
Setting up the appliance		Explains how to unpack the appliance and specifies the parts supplied with the
		appliance
		Explains how to set up the appliance
Installation	Provides information on installing the electrical supply
Preparing the appliance for use	Explains the procedure for preparing the appliance for first-time use

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1 General information

Chapter/section	Purpose
Cleaning procedures		Explains the principles of the cleaning methods
		Contains the cleaning instructions
		Describes the cleaning chemicals and how to prepare them for use
		Contains the instructions for working procedures during cleaning
		Contains and refers to the instructions for handling operations on the micro-
		wave combination oven regularly performed during cleaning
Technical data	Contains the technical data and dimensional drawings
Diagnostics	Contains a catalogue of potential errors and faults and specifies the required
	actions
Tests	Contains instructions about testing various components of the appliance
Firmware	Explains the procedure to update the firmware of the appliance
Replacing components	Contains instructions for removing and fitting the appliance parts in order to
	repair a defective appliance
Circuit diagrams and boards	Shows electrical circuit diagrams and circuit boards
Commissioning the appliance	Contains checklists which actions to take when preparing the appliance for first
	time-use and recommissioning it after service/repair.

Safety alert symbol

Safety alert symbol	Meaning
	Warns of potential injuries. Heed all the warning notices that appear after this
	symbol to avoid potential injuries or death.

Form of warning notices

The warning notices are categorized according to the following hazard levels:

Hazard level	Consequences	Likelihood
	Death / serious injury (irreversible)	Immediate risk
	Death / serious injury (irreversible)	Potential risk
	Minor injury (reversible)	Potential risk
NOTICE	Damage to property	Potential risk

Decimal points

Decimal points are used throughout this manual in any language available.

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2 Design and function

2 Design and function

Purpose of this chapter

This chapter describes the design and construction of the microwave combination oven and explains its functions.

Contents
This chapter contains the following topics:
		Page
Design and function of the microwave combination oven		11
Layout and function of the operating panel		12

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2 Design and function

2.1 Design and function of the microwave combination oven

Parts and their function

Item	Name	Function
1	ON/OFF appliance switch	Used to turn the microwave combination oven on and off.
		Turning this switch off does not isolate the appliance from the electricity
		supply.
2	easyToUCH® screen	When the appliance is switched on the easyToUCH® screen illuminates the
	control panel	user interface.
		See 'Cooking procedures' for details.
3	Nameplate	Located on the rear panel of the appliance the nameplate states the serial
	(no picture)	number, model type and electrical specifications.
4	USB port	A USB socket located under the cover allows updates to programs stored on
		the appliance.
		See USB MenuConnect® User Manual.
		See 'Cooking procedures' section of this manual, for details of updating
		cooking profiles.
5	Air outlets	Air used to cool internal components and steam from the cavity escape
	(no picture)	through the air outlet vents located on the rear of the appliance. The air
		outlets must be kept free from obstruction and they will not allow microwave
		energy to escape into the environment.
6	Appliance door	The door is a precision-made energy barrier with three microwave safety
		interlocks. Always keep it clean and do not use it to support heavy objects.
		See 'Cleaning procedures' on page 58.
7	Air filter	The air filter situated at the lower front of the appliance is part of the
		ventilation system. Keep it free of obstruction and clean it daily as described
		under ‘Cleaning procedures’ on page 58. The appliance will not operate
		without the air filter fitted.
8	Door handle	The door handle is a rigid bar which is pulled downwards and away from the
		appliance to open it.

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2 Design and function

Item	Name	Function
9	Door seals	The door seals ensure a tight seal around the door. Always keep them clean
		and check regularly for signs of damage. At the first sign of wear have them
		replaced by a Merrychef approved service agent.
		See 'Cleaning procedures' on page 58.
10	Air diffuser	Keep the air diffuser clean and free of debris. Take great care when cleaning
	(not fitted to all appliances)	this area of the appliance noting the different requirements shown under
		‘Cleaning procedures’ on page 58 in this manual.
11	Cavity	The cavity (cooking chamber) is constructed from stainless steel and used
		for cooking products. Keep it clean by following the cleaning instructions in
		the ‘Cleaning procedures’ on page 58 section of this manual.

Material

The interior and exterior structure of the appliance is made of stainless steel in either a brushed finish or colour coated.

2.2 Layout and function of the operating panel

Elements and their function

Item	Name	Function
1	ON/OFF appliance switch	Switches the microwave combination oven on and off.
2	Touchscreen	Central controls of the appliance
			Appliance operated by touching icons on touchscreen pages
			Status displays
3	USB port	For connecting a USB memory stick

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3 For your safety

3 For your safety

Purpose of this chapter

This chapter provides you with all the information you need in order to use the microwave combination oven safely without putting yourself or others at risk.

This is a particularly important chapter that you must read through carefully.

Contents
This chapter contains the following topics:
		Page
Basic safety code		14
Intended use of your microwave combination oven		21
Warning signs on your microwave combination oven		22
Summary of hazards		24
Hazards and safety precautions when moving the appliance		26
Hazards and safety precautions when setting up the appliance		27
Hazards and safety precautions during installing		28
Hazards and safety precautions when preparing appliance for use		29
Hazards and safety precautions during cleaning		30
Hazards and safety precautions during servicing and repair		32
Hazards and safety precautions when taking the appliance out of service		34
Safety devices		35
Requirements to be met by personnel and working positions		37
Personal protective equipment		38

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3.1 Basic safety code

Object of this safety code

This safety code aims to ensure that all persons who use the microwave combination oven have a thorough knowledge of the hazards and safety precautions, and that they follow the warning notices given in the user manual and on the appliance. If you do not follow this safety code, you risk potentially fatal injury and property damage.

Referring to the user manuals included in the customer documentation

Follow the instructions below:

Read in full the chapter 'For Your Safety' on page 13 and the chapters that relate to your work.

Always keep to hand the manuals included in the customer documentation for reference.

Pass on the user manuals included in the customer documentation with the microwave combination oven if it changes ownership.

Personal protective equipment for your personnel

Instruct your personnel to wear the correct personal protective equipment specified in the section 'Personal protective equipment' on page 38 in the 'For your safety‘ chapter for the relevant tasks.

Ground rules for installation

Installation must comply with all national and regional laws and regulations and comply with the local regulations of the relevant utility companies and local authorities and with other relevant requirements.

Working with the microwave combination oven

Follow the instructions below:

Only those persons who satisfy the requirements stipulated in this installation and operating manual are permitted to use the microwave combination oven.

Only use the microwave combination oven for the specified use. Never, under any circumstances, use the microwave combination oven for other purposes.

Take all the safety precautions specified in this installation and operating manual and on the microwave combination oven. In particular, use the prescribed personal protective equipment.

Only stand in the working positions specified.

Do not make any changes to the microwave combination oven, e. g. removing parts or fitting un-approved parts. In particular, you must not disable any safety devices.

IMPORTANT SAFETY INSTRUCTIONS

When using electrical appliances basic safety precautions should be followed, including the following:

To reduce the risk of burns, electric shock, fire, injury to persons, or exposure to excessive microwave energy:

Read all instructions before using the appliance.

Install or locate this appliance only in accordance with the provided installation instructions.

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3 For your safety

Restrictions on use

Only use utensils that are suitable for use in microwave combination ovens. See 'Procedure for preparing the appliance for use'.

Do not use corrosive chemicals or vapors in this appliance. This type of oven is specifically designed to heat, cook or toast food. It is not designed for industrial or laboratory use.

Never use the appliance to heat alcohol, e. g. brandy, rum, etc. Food containing alcohol can more easily catch fire if overheated. Observe caution and do not leave the appliance unattended.

Never attempt to deep fry in the oven.

Eggs in their shell and whole hard boiled eggs should not be heated in microwave ovens since they may explode even after microwave heating has ended.

Do not operate the appliance using microwave only or combination function without food or liquid inside the cooking chamber as this may result in overheating and may cause damage.

The appliance should not be used to dry linen.

Liquids and other foods must not be heated in completely sealed containers as the build-up of steam may cause them to explode.

Do not attempt to operate the appliance with: an object caught in the door, door that does not close properly; a damaged door, hinge, latch, sealing surface or without food in the oven.

Precautions when using the microwave combination oven

Microwave heating of beverages can result in delayed eruptive boiling. Therefore care must be taken when handling the container.

When handling hot liquids, foods and containers, care should be taken to avoid scalds and burns.

As with any cooking appliance, care should be taken to avoid combustion of the items within the appliance.

Instructions for safe use of the microwave combination oven

When heating liquids using microwave only or combination function, the contents should be stirred prior to heating to help prevent eruptive boiling.

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3 For your safety

The contents of feeding bottles and baby food jars must be stirred or shaken and the temperature checked before consumption, in order to avoid burns.

Items should be unwrapped when using convection and combination functions.

Excess fat should be removed during ‘roasting’ and before lifting heavy containers from the oven.

Food with a skin, e. g. potatoes, apples, sausages, etc. should be pierced before heating.

When heating food in plastic or paper containers, keep an eye on the oven due to the possibility of ignition.

Food in combustible plastic or paper containers should be transferred to a microwave/oven proof container to avoid the possibility of ignition.

In the event of glass breaking or shattering within the oven, ensure that food is totally free of glass particles. If in doubt, dispose of any food that was in the oven at the time of the breakage.

Switch off the appliance at the end of all the cooking sessions for that day.

Requirements to be met by operating personnel

This appliance is not intended for use by persons (including children) with reduced physical sensory or mental capabilities or lack of experience and knowledge unless they have been given supervision or instruction concerning use of the appliance in a safe way and understand the hazards involved. Children shall not play with the appliance. Cleaning and user maintenance shall not be made by children.

It is hazardous for anyone other than a competent person to carry out any service or repair operation that involves the removal of any cover which gives protection against exposure to microwave energy. See 'Requirements to be met by personnel, working positions' on page 37.

Requirements relating to the operating condition of the microwave combination oven

As with all electrical appliances, it is recommended to have the electrical connections inspected at least once a year.

This appliance must be grounded. Connect only to a properly grounded outlet. See 'Planning the electrical iInstallation' on page 46.

Never remove the external covers of the appliance.

Never remove any fixed internal parts of the appliance.

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3 For your safety

Never tamper with the control panel, door, seals, or any other part of the appliance.

Never hang dish towels or cloths on any part of the appliance.

If the door or door seal is damaged, the appliance must not be operated until it has been repaired by a competent person. See 'Requirements to be met by personnel, working positions' on page 37.

The appliance must not be operated without the air filter in place.

If the supply cord is damaged, it must be replaced by the manufacturer, its service agent or similarly qualified persons in order to avoid a hazard.

Requirements relating to the operating environment of the microwave combination oven

The minimum height of free space necessary above the top surface of the appliance is 50mm (2”).

The floor adjacent to the appliance may be slippery. Clean up spillages immediately.

This appliance is not intended for mobile use, such as in marine or vehicle applications.

Cleaning requirements

The appliance should be cleaned regularly and any food deposits removed.

The cooking chamber of the appliance and the door seals should be cleaned frequently. Failure to maintain the appliance in a clean condition could lead to deterioration of the surface that could adversely affect the life of the appliance and possibly result in a hazardous situation.

The appliance should not be cleaned with a water jet.

Details for cleaning door seals, cavities and adjacent parts are provided in the 'Cleaning procedures' section of this manual.

The appliance must be disconnected from its power supply during maintenance and when replacing parts. It is not necessary to disconnect the appliance from the power supply during routine daily cleaning tasks.

When cleaning surfaces of door and oven that come together on closing the door see the instructions on cleaning the door surface in the 'Cleaning procedures' on page 58 section of this manual.

Emergency instructions

If smoke is observed: switch off the appliance. Unplug or isolate it from the electrical supply and keep the door closed in order to stifle any flames.

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More on this ...
Related topics
Summary of hazards		24
Hazards and safety precautions during cleaning		30
Hazards and safety precautions when moving the appliance		26
Hazards and safety precautions when setting up the appliance		27
Hazards and safety precautions during installing		28
Hazards and safety precautions when preparing appliance for use		29
Hazards and safety precautions when taking the appliance out of service		34
Safety devices		35
Requirements to be met by personnel and working positions		37
Personal protective equipment		38

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IMPORTANT

This manual provides technical guidance for technicians who have successfully undertaken a recognized product familiarization and training course run by Merrychef to carry out service/repair tasks to the appliance/s shown on the front cover of this manual which must not be used for any other make or model of appliance.

Please remember that it is wiser not to attempt a service task if you are unsure of being able to complete it competently, quickly, and above all safely.

To avoid injury to yourself or others and to protect the appliance from possible damage, ensure you have read and understand all the relevant instructions and ALWAYS follow the Safety Codes when servicing an oven.

1.Ensure the electrical supply is locked-off to prevent the oven from being inadvertently powered up.

2.Do not leave the oven unattended without the oven panels fitted and keep within sight of other personnel when testing the oven, ensuring persons other than trained engineers are denied access.

3.The minimum number of panels should be removed and the high voltage capacitors must be discharged before working on the oven using a suitably insulated 10 M resistor.

4.Temporary insulation should be used to prevent accidental contact with dangerous conductors.

5.Do not touch any internal wiring or connectors within the oven, whether you believe it is live or not and avoid touching the metalwork (casing, panels, etc) of the oven with your body.

6.Only use electrically rated screwdrivers for adjusting ‘Pots’ etc., ensuring the tool touches nothing else.

7.Ensure the test equipment is set correctly before use.

8.Test equipment such as meter test leads or clamps must be fitted and removed whilst the unit is dead, for each and every test.

9.Do not undertake functional magnetron testing with the panels of the casing removed.

10.Avoid touching the test equipment, unless necessary for the operation.

11.Upon completion of a service follow the steps for commissioning the oven under the "Commissioning the appliance" section of this manual.

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3 For your safety

IMPORTANT

To Service Technicians:

Precautions to be observed before and during servicing to avoid possible exposure to excessive microwave energy.

1.Do not operate or allow the oven to be operated with the door open.

2.Make the following safety checks on all ovens to be serviced before activating the magnetron or other microwave source, and make repairs as necessary:

Interlock operation.

Proper door closing.

Seal and sealing surfaces (arcing, wear, and other damage).

Damage to or loosening of hinges and latches.

Evidence of dropping or abuse.

3.Before turning on microwave power for any service test or inspection within the microwave generating compartments, check the magnetron, wave guide or transmission line, and cavity for proper alignment, integrity and connections.

4.Any defective or misadjusted components in the interlock, monitor, door seal, and microwave generation and transmission systems shall be repaired, replaced, or adjusted by procedures described in this manual before the oven is released to the owner.

5.A microwave leakage check should be performed on each oven prior to release to the owner.

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3.2 Intended use of your microwave combination oven

Intended use of your microwave combination oven

The microwave combination oven must only be used for the purposes specified below:

The microwave combination oven is designed and built solely for cooking different foodstuffs in containers approved by the manufacturer. Microwave, convection and impingement are used for this purpose.

The microwave combination oven is intended solely for professional, commercial use.

Restrictions on use

Some materials are not allowed to be heated in the microwave combination oven:

No dry powder or granulated material

No highly flammable objects with a flash point below 270°C / 518°F, such as highly flammable oils, fats or cloths (kitchen cloths)

No food in sealed tins or jars

Requirements to be met by personnel

The microwave combination oven must only be operated and installed by personnel who satisfy specific requirements. Please refer to 'Requirements to be met by personnel, working positions' on page 37 for the training and qualifications requirements.

Personnel must be aware of the risks and regulations associated with handling heavy loads.

Requirements relating to the operating condition of the microwave combination oven

Do not operate the microwave combination oven unless it has been properly transported, set up, installed and placed into operation as indicated in this manual and the person responsible for placing it into operation has confirmed this.

The microwave combination oven must only be operated when all safety devices and protective equipment are fitted, in working order and fixed properly in place.

The manufacturer's regulations for operation and servicing of the microwave combination oven must be observed.

Requirements relating to the operating environment of the microwave combination oven

Specified operating environment for the microwave combination oven:

The ambient temperature lies between +4°C / 40°F and +35°C / 95°F

Not a toxic or potentially explosive atmosphere

Dry kitchen floor to reduce the risk of accidents

Specified properties of the installation location:

No fire alarm, no sprinkler system directly above the appliance

No flammable materials, gases or liquids above, on, under or in the vicinity of the appliance

It must be possible to set up the microwave combination oven in the installation position so that it cannot tip over or slide about. The supporting surface must comply with these requirements.

Mandatory restrictions on use:

 Appliance must not be operated outdoors and not be shifted or moved during use

Cleaning requirements

Use only cleaning chemicals that have been approved by the manufacturer.

High-pressure cleaners or water jets must not be used for cleaning.

The appliance must not be treated with alkali or acid solutions or exposed to acid fumes.

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3 For your safety

3.3 Warning signs on your microwave combination oven

Warning and safety signs

Mandatory warning signs

The following warning signs / notices must be attached to the microwave combination oven and optional accessories in the area indicated so as to be easily visible at all times.

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3 For your safety

Area	Warning sign	Description
1		Microwaves warning

There is a risk of external and internal burns of body parts following exposure to microwave energy.

2	Electric shock warning
	There is a risk of electric shock if the appliance is serviced without discon-
	necting the electrical supply.
3	Fire / electric shock warning
	There is a risk of fire / electric shock if the appliance is operated without
	respecting the minimum clearances.
4	Hot surface warning
	There is a risk of burns from high temperatures inside the cavity and on the
	inside of the appliance door.
5	Electric shock warning
	There is a risk of electric shock if the electrical power is not connected to a
	properly grounded outlet.

Safety symbols

The following safety symbols be attached to the microwave combination oven in the area indicated so as to be easily visible at all times.

Area	Safety symbol	Description
6		Protective Earth (Ground)

7		Equipotential bonding

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3 For your safety

3.4 Summary of hazards

General rules for dealing with hazards and safety precautions

The microwave combination oven is designed to protect the user from all hazards that can reasonably be avoided by design measures.

The actual purpose of the microwave combination oven, however, means that there are still residual risks; you must therefore take precautions to avoid them. A safety device can provide you with a certain degree of protection against some of these hazards. You must ensure, however, that these safety devices are in place and in working order.

The nature of these residual risks and what effect they have are described below.

Hazard points

The following illustration shows a Merrychef e2s microwave combination oven:

Excessive microwave energy

The microwave combination oven generates microwave energy. An operation with an open or damaged door or cavity can result in external and internal burns of body parts following exposure to microwave energy.

Heat generation (1)

The microwave combination oven becomes hot inside the cavity and on the inside of the appliance door. This poses a risk of burns on hot surfaces inside the microwave combination oven, and also on hot appliance parts, food containers and other accessories used for cooking.

Hot steam / vapour (2)

When cooking food the microwave combination oven may generate hot steam and vapour which escapes when the appliance door is opened and which is removed through the air vents on the rear of the microwave combination oven when the appliance door is closed. This poses a risk of scalding from hot steam when the appliance door is opened. Take particular care when opening the appliance door if the top door edge is below your field of vision.

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3 For your safety

Hot liquids

Foodstuffs are cooked in the microwave combination oven. These foodstuffs may also be liquid, or liquefy during cooking. This poses a risk of scalding from hot liquids, which may be spilled if not handled properly.

Live components (3)

The microwave combination oven contains live parts. This means a risk from live parts if the cover is not in place.

Contact with cleaning chemicals

The microwave combination oven must be cleaned using special cleaning chemicals. This poses a risk from cleaning chemicals, some of which can cause skin burns.

Parts moving against each other (4)

For various actions, such as opening/shutting the appliance door or cleaning the appliance door, there is the risk that you will crush or cut your hand.

Undercooking of food products

Ensure all food is hot before serving to protect your guests from microbiological contamination of foodstuffs.

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3.5 Hazards and safety precautions when moving the appliance

Safety hazard: moving heavy weights

Danger	Where or in what situations does the Preventive action
	hazard arise?

Risk of injury from overstressing your body

When moving the appliance onto and off the moving equipment

Use a forklift truck or pallet truck

Do not exceed safety limits for lifting and carrying

Wear personal protective equipment

Safety hazard: mechanical parts of the appliance

Danger	Where or in what situations does the Preventive action
	hazard arise?

Risk of body parts being	When moving the appliance
crushed if the appliance is
dropped

Use suitable handling gear

Move the appliance slowly and carefully, and secure it against tipping over

Make sure center of gravity is balanced

Avoid jolts

Risk of body parts being crushed if the appliance tips over or falls off

When placing the appliance down on the supporting surface

Always observe the requirements for the supporting surface while setting up the appliance; see 'Requirements for the installation location' on page 42

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3.6 Hazards and safety precautions when setting up the appliance

Safety hazard: moving heavy weights

Danger	Where or in what situations does the	Preventive action
	hazard arise?
Risk of injury from over-	When moving the appliance		Use a forklift truck or pallet truck to
stressing your body			place the appliance in the installation
			position or to move it to a new position
			Always use the correct number of
			persons and observe the limits speci-
			fied for lifting and carrying when ad-
			justing the appliance position
			Observe the local occupational safety
			regulations
			Wear personal protective equipment

Safety hazard: mechanical parts of the appliance

Danger	Where or in what situations does the Preventive action
	hazard arise?

Risk of body parts being	When lifting the appliance
crushed if the appliance is
dropped

Make sure center of gravity is balanced

Avoid jolts

Risk of cuts from sharp	When handling sheet-metal parts		Exercise caution when performing
edges			these tasks
			Wear personal protective equipment

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3.7 Hazards and safety precautions during installing

Safety hazard: electrical power

Danger	Where or in what situations does the Preventive action
	hazard arise?

Risk of electric shock from live parts

	Under covers	 Work on the electrical system must only
	Under the operating panel	be performed by qualified electricians
	Along the mains power lead	from an authorised service company
		 Professional working
		Ensure that all electrical connections are
		in perfect condition and fixed securely
		before putting the appliance into use
On the appliance and on adjacent metal		Before preparing the appliance for use,
parts		make sure that the appliance is con-
		nected to an equipotential bonding
		system (EU).

Safety hazard: mechanical parts of the appliance

	Danger	Where or in what situations does the	Preventive action
		hazard arise?
Trapping fingers or body		When opening or closing the door	Use the handle and avoid the door hinges

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3.8 Hazards and safety precautions when preparing appliance for use

Safety hazard: electrical power

Danger	Where or in what situations does the Preventive action
	hazard arise?

Risk of electric shock from live parts

	Under covers	 Work on the electrical system must only
	Under the operating panel	be performed by qualified electricians
	Along the mains power lead	from an authorised service company
		 Professional working
		Ensure that all electrical connections are
		in perfect condition and fixed securely
		before putting the appliance into use
On the appliance and on adjacent metal		Before preparing the appliance for use,
parts		make sure that the appliance is con-
		nected to an equipotential bonding
		system (EU).

Additional safety hazards when preparing appliance for use

When preparing the appliance for use, read and follow the safety information given in this chapter and also the following sections in the chapter 'For your safety' on page 13 in the user manual:

'Hazards and safety precautions during operation'

'Hazards and safety precautions during cleaning'

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