FM ST-F21 User manual

Instruction Manual
Combi oven convection/microwave
Models:
ST-F21/22/41/42
ATTENTION: Please, read these instructions before using this unit.

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CONTENTS
1. SAFETY WARNINGS 4
2. CE CERTIFICATION 6
3. WARRANTY 7
4. SAFETY INSTRUCTIONS, TRANSPORT AND MAINTENANCE 8
4.1 Unpacking 8
4.2 Transport 8
4.3 Preliminary operations 8
4.4 Placing the unit 8
5. STARTING UP THE UNIT 9
5.1 Electrical connection 10
5.2 Vapour exhaust from the cooking chamber 12
6. USE INSTRUCTIONS OF THE DEVICE 13
6.1 General advices 14
6.2 Device design 15
6.3 Switching the device ON/OFF 15
6.4 "Main menu" Icon. Actions and submenus 16
6.5 "New recipe" Icon 19
6.6 “Main recipe menu" Icon. Actions and submenus 23
6.7 “Quick start”Icon 27
6.8 “Maintenance" Icon 27
7. CLEANING OF THE DEVICE 29
8. ALARMS AND ERRORS 34

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1. Safety warnings___________________________________
Improper use or maintenance of this device, as well as non-compliance with the safety regulations specified in this
manual, will immediately void the warranty and also exempt the manufacturer from any liability.
Keep this manual for the lifetime of the appliance and read it carefully before using the appliance.
The device is intended for professional use ONLY.
Components that have been protected by the costumer and the manufacturer must not be tampered with by the
installer or the end user of the appliance.
Installation, starting and maintenance of the oven shall be carried out by qualified technicians in accordance with
the scale and technical characteristics specified by the manufacturer. Likewise, observe the current legislation on
safety with regard to installations and occupational safety in force in the country of use.
Check that the unit is unplugged from the power supply before installing or maintaining.
Do not manipulate or disconnect the unit safety devices. This will invalidate the warranty.
Damages, injuries or fatal accidents could be produced due to the non-observance of the manufacturer’s
indications.
If the oven is installed on supports or overlaying parts, use the ones supplied by FM only and follow the assembly
instructions inside the packaging.
Non-original spare parts do not ensure the correct operation of the unit and will imply the loss of the warranty.
The device must be only used by duly-trained technicians.
The oven data plate provides necessary technical information for repair or maintenance. Therefore, avoid
removing, damaging or modifying it.
If the device is not used for a long period of time, it is recommended to disconnect the power supply to the device.
The appliance must only be used for the purpose for which it was designed, i.e. baking bread, pastries and all
types of fresh or frozen food products. Any use other than this may result in damage to the appliance.
For the execution of a cooking cycle, utensils or containers according to the selected cooking mode (convection or
microwave) must be used.
Products with a high alcohol concentration should not be introduced.
The interior and exterior surfaces of the oven must be cleaned frequently to ensure hygiene and proper operation
of the oven. These surfaces must not be cleaned using abrasive or flammable products that could damage the
appliance (see detailed instructions in section 7).
Cleaning procedures other than those recommended by the manufacturer, as well as the use of products not
authorised by the manufacturer, may cause damage to the device and the user.
Risk of burns
Read these warnings carefully and follow its indications when the oven is working or not completely cooled down.
Only touch the unit control elements and the door handle. Avoid touching any other external element of the oven
as it may reach temperatures over 60ºC.
Wear thermal mittens or similar to move or handle containers or trays inside the baking chamber.
Open the oven door slowly and be careful with high temperature steam coming out from the baking chamber.
Risk of fire
If you do not clean the appliance properly and frequently enought, you run the risk of causing the grease and food
residues that accumulate in the cooking chamber to combust.
To clean the inside of the appliance, use only products indicated by the manufacturer. The use of other products
could damage the appliance of any of its components, which will result in the TOTAL cancellation of the warranty
(see detailed instructions in section 7).
For cleaning the outside of the unit, use only products suitable for household use and a soft damp cloth. Do not
use any corrosive or irritating substances (see detailed instructions in section 7).

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Failure to comply with these safety standards will release FM from any responsibility and
the warranty will become null and void.

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2. CE Certification____________________________________________
EU DECLARATION OF CONFORMITY
Council Directive(s) to which conformity is declared:
DC 2014/35/EU + DC 2014/30/EU + DC 2011/65/EU
Application of the Standards:
UNE-EN 60335-1:2012+AC:2014+A11:2014+A13:2017+A14:2014+A2:2020+A1:2020; UNE-EN
60335-2-42:2004+Corr:2007+A1:2008+A11:2012; UNE-EN 55014-1:2017+A11:2021; UNE-EN
55014-2:2015; UNE-EN 61000-3-2:2014; UNE-EN 61000-3-3:2013+A1:2020
Manufacturer’s address:
FM CALEFACCIÓN S.L.
CIF: B-14343594
Manufacturer’s address:
CTRA. de Rute km.2.700, C.P.:14900, Lucena
Cordoba, Spain
Type of device:
COMBI OVEN CONVECTION MICROWAVE
Trade:
FM CALEFACCIÓN
Model:
ST-F 21/22 /41/42
We, the undersigned, hereby declare under our sole responsibility that the specified equipment
is in conformity with the above Directive(s) and Standard(s)
Place:
Lucena
Signature:B-14343594
Date:
01/01/2021

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3. Warranty
The warranty period is 12 months from the date of purchase of the unit.
The warranty does not cover damages to the glass, lamps, door seals, damage to the insulating material or
damage caused by improper installation or maintenance, lack of maintenance, improper repair or misuse.
To process the repair of a unit under warranty or for any other query, please contact your distributor and refer to
the following description table:
Distributor: Destination country:
Unit model:
Serial number:
Name:
Date of the request:
Fault description:
Address:
Contact telephone number:
Working hours:
Improper adjustment, installation, service or maintenance of the unit may lead to damages to the goods or
persons. For this reason, please, read this manual thoroughly before starting the unit.

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4. Safety instructions, transport and maintenance
4.1 Unpacking
Visible damages: When receiving the material, enter a detailed description of the break in the PDA or in the delivery
note.
General comments such as “damaged packaging” or “damage can be seen”, etc. will not be accepted. Clear
photographs showing the damaged good and packaging must be provided.
Hidden damages: When receiving the material and within 24 hours after reception, once the hidden damage has
been checked, photographs showing the damaged good and its corresponding packaging must be provided. The
transport agency label must be clearly visible. Photographs showing the content only and exclusively will not be
accepted.
In either case, transport incidences should be reported to FM Industrial to manage the replacement of the
machine.
If visible damages are detected when receiving the packaged machine, indicate “hits to the oven” at the time of
the delivery, take photos of the damages and transport agency label on the packaging. Please, contact FM Industrial
immediately
If package is apparently in good conditions, and damages are detected when unpacking, place the original
packaging again on the machine, take pictures of the packaging and transport agency label on the packaging. Next, unpack
again and take photos of damages to the machine. Please, contact FM Industrial immediately.
4.2 Transport
Before transporting the unit to its installation site, make sure that:
- Fits through the door
- The floor withstands its weight.
Transport should only and exclusively be carried out by mechanical means, such as a pallet Jack, and always on a pallet.
4.3 Preliminary operations
Remove the protection film from the unit. Clean the adhesive residues with an appropriate solvent. Never use
abrasive or acid products or tools that may damage the surface.
4.4 Placing the unit
Place the oven in the selected work place and keep a safe distance as indicated below.
Check that the unit has sufficient cold air inlets through ventilation registers ensuring correct operation. Otherwise,
the unit may overheat, and some components may be destroyed.
The facilities must be conditioned and meet the regulations in force with regard to safety in installations.
The unit must be protected from atmospheric agents.
The ambient temperature may range between 5ºC and 35ºC máximum for correct operation of the unit.
Humidity should not exceed 70%.

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Example of equipment placement without nearby heat sources.
1
Placement of the equipment near heat sources. 1
We recommend leaving a free working space of around 500 mm for maintenance operations.
The device is not suitable for built-in installation.
1
The image shown in this diagram is of a generic type. The external appearance of the device may not correspond to the one purchased.
Min. 100mm
Min. 700mm
Fireproof
insulation panel
Min. 120mm
Min. 120mm

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5. Starting up the unit
5.1 Electrical connection
Before connecting the unit to the power supply, check that the electrical grid characteristics match those described
in the technical characteristics.
The electrical installation must be performed by authorised technicians and meet the regulations in force.
Preferably, the electrical connection should be performed by mounting an electrical outlet (NOT INCLUDED) of
appropriate type and capacity for the maximum current absorbed by the oven phases. If not possible, it could be directly
connected to the circuit breaker on the electrical control board.
The recommended types of electrical connections are as follows:
400V three phase connection directly connected to a circuit breaker:
400V three phase connection connected to a three-phase power socket CETAC:
230V three phase connection connected to a three-phase power socket CETAC:
In order to prevent damages from unintentional reset of the cutting thermal device, this unit should not be fed by an
external control device, such as timer, or be connected to a circuit whose supply is regularly interrupted.
An own power supply line protected by an adequately-sized circuit breaker switch and a fixed supply connection is
recommended to connect the units.
Observe the colour code of cables. Inappropriate connection may damage the unit.
CIRCUIT BREAKER
MATERIAL NOT SUPPLIED
MATERIAL NOT SUPPLIED

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5.2 Vapour exhaust from the cooking chamber
Exhaust gases may be wet and reach high temperatures. Therefore, do not use tubes made of materials not ensuring
absolute thermal stability up to 250ºC to channel exhaust gases.
Do not channel the vapour exhaust from the cooking chamber more than 50 centimetres due ro risk of
condensation. This pipeline should be vertical and as straight as possible.

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6. Use instructions of the device
Please read these instructions carefully before operating the device.
6.1 General advices
For the ST-F41/42 models, the cooking mode to be used must be taken into account when arranging the trays
inside the cooking chamber. In the case of a cooking cycle in which only the heating elements are used, it is
possible to place three trays on the rack guides provided for this purpose. If, on the other hand, it is decided to
carry out a combined cooking cycle (heating elements + microwave), only one tray will be used, so that the
microwaves have a direct impact on the product placed on it. For this purpose, the rack also has a guide to
facilitate the insertion of this tray, the position of which inside the chamber allows perfect cooking of the product
placed on it
Arrangement on trays in ST-F41/42 for the execution of a cooking cycle USING RESISTANCE ONLY:
Arrangement on trays in ST-F41/42 for the execution of a cooking cycle in COMBINED MODE
(RESISTANCE+MICROWAVE)
In the COMBINED COOKING MODE (RESISTANCES + MICROWAVE) NEVER use more than one tray.
For ST-F21/22 models, only one tray is available for food placement, so it is not necessary to take into account the
cooking mode to be carried out.

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Distribute the food evenly over the surface of the tray(s), depending on your appliance model as well as the selected
cooking mode.
Do not introduce highly flammable foods.
When a beverage is introduced, it may suddenly come to a boil even after the end of the boiling cycle. Therefore, it is
recommended to handle the vessel with great caution.
During a cooking cycle, keep an eye on the appliance to avoid possible combustion of the food inside.
Before carrying out the first cooking cycle, it is recommended that the appliance is preheated to the temperature
required to carry out the cooking cycle of the food to be cooked. To do this, we have the possibility of maintaining
the desired temperature at all times using the “Maintenance mode” or carrying out manual preheating just before
starting the recipe, always in accordance with the recommended indications that appear on the display (see section
6.8).
In case liquids or food to be melted are introduced, it is recommended that they are placed in a container with
adequate capacity to avoid overflowing once the cooking cycle is finished.
Do not use the appliance to heat food contained in a closed container, e.g. bottles, eggs, etc. In this case, the food
must be transferred to a microwave and oven safe container.
Before introducing a liquid food into the appliance, stir it for proper homogenisation.
It is recommended to make a few punctures in those foods that have skin (sausages, potatoes, apples, etc).
It is recommended to keep the appliance clean, removing any food residue accumulated inside the cooking chamber
and thus avoiding possible combustion.
Always switch off the appliance at the end of the working day.
It is recommended that the door of the appliance should not be opened while a cooking cycle is in progress,
especially if the microwave is being used. If it is necessary to open the door, this should be done VERY SLOWLY and
taking care with the vapours coming out of the interior chamber.
Do not use metal containers with pointed shapes or surfaces with sharp metal edges, as this may cause the
magnetrons to malfunction ore ven render them permanently unusable. Likewise, pay special attention to containers
containing metalling ornaments.

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6.2 Device design
1. Display control panel
5. Main air inlet
2. ON/OFF button
6. Cooking chamber vapour outlet
3. Cooling air outlet
7. Safety thermostat push button
4. USB connection access
8. Hose fitting electrical connection
ST-F21/22
ST-F41/42
1
1
2
2
3
3
4
5
4
5
6
6
7
8
7
8
ST-F21/22
ST-F41/42

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6.3 Switching the device ON/OFF
Each time the appliance is started from the power button on the control panel (see section 6.2), the display will show
a first message asking for the “MAINTENANCE MOOD”to be activated. In case you wish to activate this mode, simply
select the desired temperature using the icons “+” o “-“or via the scroll bar, and then click the icon (to find out more
about the “MAINTENANCE MOOD”, see sectio 6.8). If you do not want to activate this mode, you cancel the start of the
mode by clicking on the icon and this will take us to the initial screen of the device.
The home screen is structured as follows:
1. Notification bar: is located at the top of the screen. This bar shows the icon for accessing the main menu (a),
hour (b), alarm signal/event or operating error (c), WI-FI connection enable symbol (d) and current temperature
of the cooking chamber (e).
2. Favourite recipe group: displays the recipes that have been selected as favourites within the general recipe
library (see section 6.5). This group can store up to 18 recipes and can be made up of both factory recipes and
recipes that have been created by users. To scroll through the group, simply slide the group sideways.
3. Category group: shows the six main categories into which the recipes stored in the general library of the
appliance can be classified (see section 6.6.3). This list is NOT EDITABLE by the user, and the categories are
defined by factory default. As with the group of favourite recipes, to see all the categories, simply swipe sideways
on the list.
4. “NEW RECIPE”Icon: allows access to the recipe configuration screen (see section 6.5). In addition, this access
allows you to configure different cooking phases for the same food.
5. “QUICK START” Icon: like the previous icon, this one allows you to access the recipe configuration screen (see
section 6.7) but with the exception that it is NOT allowed to add cooking steps. The rest of the options offered
are similar to those shown with the “NEW RECIPE” icon.
6. “MAINTENANCE” Icon:allows the activation of the appliance’s maintenance mode (see section 6.8), through
which, by selecting a final temperature value, the oven starts the heating process until this value is reached and
then maintains it, waiting to start the cooking process of the food.
Maintenance mode
request screen
Home screen
1
2
a
b
c
d
e
3
4
5
6

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6.4 “Main menu” Icon. Actions and submenus
1. To access the main manu of the device, from the home screen, click on the icon . This will take you to a
window showing the most relevant options and actions available on the device.
6.4.1. “SETTINGS”submenu
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, tap on the icon .
3. Click on the icon to access the settings submenu.
Each of the actions that can be carried out with the different options shown in the settings submenu are detailed
below:
1
Home screen
Main menu
ACTIONS
Cooling (section 6.4.3)
Switch off (section 6.4.4)
Messages and warnings (section
6.4.5)
SUBMENUS
Settings (section 6.4.1)
Settings (section 6.4.2)
2
3
Settings submenu

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TIME AND DATE
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, click on the icon .
3. Click on the icon to access the settings menu and then click on “TIME AND DATE”.
4. Set the date and time correctly and activate, if desired, the automatic seasonal time change (DST).
LANGUAGE
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, click on the icon .
3. Click on the icon to access the settings menu and then click on “LANGUAGE”.
4. Choose the desired language from the options displayed and press “OK”.
2
3
Date setting window
Tmie setting window
Seasonal time
change
2
3

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FIRMWARE UPDATE
This procedure may only be carried out by an authorised technical service and, under no circumstances may it be
manipulated by the end user. In this case, the warranty of the appliance will be immediately void, exempting the
manufacturer from any liability that this may entail.
PARAMETERS
The list of parameters accessed through this icon can be manipulated by the end user of the device. FM recommends
NOT ALTERING ANY OF THESE VALUES without first Consulting the authorised technical service in your area
(https://fmindustrial.es/es/sat). If the end user modifies or alters any of these values, the warranty of the device will be
immediately void and FM will not be liable for the consequences of such actions.
HACCP
In order to download HACCP data, you must FIRST insert a STORAGE DEVICE into the USB slot provided in your
device and enabled for this purpose. The location of this connection is specified in section 6.2 of this document.
This device has the capability to record HACCP data, which enables the assessment of hazards and the
establishment of control systems focused on prevention.
To access the HACCP register, perform the following steps:
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, click on the icon .
3. Click on the icon to access the settings menu and then click on “HACCP”.
4. Choose the desired option from the three options displayed and accept to start downloading.
2
3
Download HACCP and delete: stores the current record in the removable
memory device and deletes this record from the oven’s memory.
Download HACCP and save: stores the current log in the removable memory
device and no log is deleted from the oven’s memory.
HACCP RESET: deletes the data record from the oven memory. For this
option, no removable memory device is required, as there is no option to save
the data to it.

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The HACCP option increases the food safety of your appliance and brings other important benefits, such as
facilitating the competent authority’s regulatory inspection work and promoting International trade, thus
increasing confidence in food safety.
Its main objectives include:
Strengthens food safety.
Facilitates compliance with food law regulations.
Facilitates agility and provides transparency in regulatory inspection controls.
USB
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, click on the icon.
3. Click on the icon to access the settings menu and then click on “USB”.
4. Choose the desired option from the seven options displayed and accept to start the procedure.
2
3
Import recipes: allows you to store in the memory of your oven new recipes that have been created on another aapliance
(compatible between models ST-F21/22/41/42). To do this, FIRST insert an external storage device into the USB port on
the oven and then click on the icon to start the procedure.
Export recipes: allows you to make a copy of the recipes that have been created in your oven (compatible between models
ST-F21/22/41/42). To do this, FIRST insert an external storage device into the USB port of the oven and then click on the
icon to start the procedure.
RECIPES INCLUDED BY DEFAULT IN THE APPLIANCE SHALL NOT BE EXPORTED.
Import languages: this action may only be carried out by an authorised service technician.
Import default recipes: this action may only be carried out by an authorised service technician.
Import icons: this action may only be carried out by an authorised service technician.
Slideshow: this action may only be carried out by an authorised service technician.
LOGO: this action may only be carried out by an authorised service technician.

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6.4.2 “SERVICE” submenu
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, click on the icon.
3. Click on the icon to access the service submenu.
This submenu can only be accessed by an authorised technical service and under no circumstances can it be
manipulated by the end user of the device. In order to access it, an access code is required, which will be provided by the
FM technical service to the authorised person at the time of carrying out the repair or maintenance work on the appliance,
and whenever the intervention so requires.
6.4.3 “COOLING” action
1. Make sure that the device is switched on and no operation is in progress.
2. From the home screen, click on the icon.
3. Click on the “COOLING”icon. The process shall be activated as soon as the door of the appliance is opened.
Likewise, the turbine shall remain running until the temperature of the inner chamber is 70ºC or lower or the
door is closed again.
The cooling process remains active until the appliance door is closed again or the temperature of the interior
chamber is 45ºC or lower.
2
3
2
3