Fontana Forni MAESTRO 40 User manual

MAESTRO 40
MAESTRO 60
OVENS FOR DOMESTIC USE
MAESTRO MODELS
40 / 60
FFMAES40
FFMAES60
REV 1.1
USER MANUAL

Dear Customer,
Thank you for choosing Fontana!
This manual will allow you to install and use the oven you purchased in the best
possible way and safely. We advise you to carefully read the following manual before
carrying out the first ignition.
CONTENTS
GETTING STARTED GUIDE
GENERAL WARNINGS
SAFETY WARNINGS
WARRANTY
INSTALLATION
LINKS
STORAGE, SERVICE, MAINTENANCE
INDICATIONS FOR USE AND SPECIFICATIONS
FIRST IGNITION
TROUBLESHOOTING
TECHNICAL AND SAFETY NOTES
2
4
6
7
9
11
13
14
17
19
21
2 3
E N G E N G
Getting Started with the Maestro Oven
Try our tasty Simple Pizza Dough Recipe:
Congratulations on your Fontana Forni Oven!
Other Recipes - Cooking with Fontana Forni
Start Here: Set up / Assembly / Common Questions
Here are some links to helpful videos, tips, and recipes to help you get started.
Instagram / YouTube / Facebook / TikTok / Threads / Pinterest: @FontanaForniUSA
We’re constantly adding new recipes so be sure to follow us on socials for more ideas!
We’d love for you to tag us in your delicious creations! #FontanaForniUSA
Please reach out and call if we can assist you. 1-877-842-9822
Ready to start making delicious pizza right away?

All interventions must be carried out in safe conditions and with
the gas line closed and/or disconnected
WARNING: Improper connection as well as any alterations or improper maintenance
can cause material damage to property or persons and even death in extreme cases.
Read the instructions carefully before installing and using the appliance
- The identification plate, with technical data, serial number and marking is visibly applied
to the appliance. The plate must never be removed.
- Before operating the appliance, it is mandatory to remove all protective films present.
- Absolutely avoid the use of steel sponges and sharp scrapers to avoid damaging the sur-
faces. Use normal, non-abrasive products, possibly using wooden or plastic tools. Rinse
thoroughly and dry with a soft cloth or microfibre cloth.
- Do not use tableware or containers made of plastic material. The high temperatures rea-
ched inside the oven could melt this material, causing damage to the appliance.
- Use cutlery and tools that are resistant to high temperatures.
- Place the oven on a flat surface.
- Due to the temperature, the colour of the surfaces may vary.
- The installation of the product must ensure easy access for cleaning.
- Never put flammable objects in the oven: if it is accidentally switched on, a fire could
start.
- Do not allow children to approach the appliance during operation, DANGER OF BURNS
or to play with it even when off.
Do not insert sharp metal objects (cutlery or tools) into the slits of the appliance.
- The furnaces, although they have insulating material between the two layers of steel,
may overheat outside.
- Make sure the oven is positioned away from objects and materials that may be damaged
by heat. Do not place flammable materials in the area of the floor in front of the oven, pro-
tect the floor with fireproof material if it is made of flammable material.
- Do not store flammable material on the trolley shelf (if present) under the oven.
- Manoeuvre the door by holding the handle. - Do not touch the external surfaces and flue
while in use.
- Do not use flammable liquids near the oven.
- Keep any electrical cables and fuel supply pipes away from hot surfaces.
- Do not use the oven in case of abnormal operation or suspected breakage.
- Do not move the oven during use or when it is hot.
- Do not lean or place objects in the oven, their stability may be compromised.
- Do not use naked flames near the oven.
- In case grease catches fire, stop the power supply and leave the oven door closed until
CAUTION: If the gas oven is not used, close the gas supply valve
Do not store unused gas cylinders in the vicinity, even if empty.
the fire extinguishes.
- Wear heat-resistant kitchen gloves when using the oven.
- The parts sealed by the manufacturer must not be modified by the user.
- Do not leave the appliance unattended during cooking, which may release grease or oils.
Fats and oils may catch fire.
- Do not obstruct the openings, ventilation and heat disposal slots where present.
- During use, for ovens with integrated base (trolley), remember to lock the wheels with
the appropriate brake.
Read the entire manual before proceeding with installation. Failure to follow these pro-
cedures could result in damage to property and persons and possibly death. Contact
the competent authorities regarding any installation restrictions.
ONE OF THE MAIN CAUSES OF FIRE RELATED TO THE OVEN IS DUE TO FAILURE TO
COMPLY WITH THE MINIMUM DISTANCES FROM COMBUSTIBLE MATERIALS OR
INCORRECT INSTALLATION. IT IS VERY IMPORTANT THAT THIS OVEN IS INSTALLED
IN ACCORDANCE WITH THESE INSTRUCTIONS
FOR YOUR SAFETY: Do not deposit or use gasoline or other flammable vapors or liquids
in the vicinity of this or other appliances. Keep the area below and around the appliance
free of combustible materials.
CAUTION: Improper connection as well as any alterations or improper maintenance
can cause material damage to property or persons and even death in extreme cases.
GAS LEAKS MAY CAUSE FIRE OR EXPLOSION AND CAUSE SERIOUS OR FATAL
PERSONAL INJURY, OR PROPERTY DAMAGE.
CAUTION IF YOU SMELL GAS:
1. Immediately shut off the gas supply.
2. Extinguish any open flames.
3. Open the oven door.
4. Consult a specialist technician
GENERAL WARNINGS
KEEP THIS MANUAL FOR FUTURE REFERENCE
SAFETY WARNINGS
READ ALL INSTRUCTIONS BEFORE INSTALLING AND USING THE PRODUCT
READ THE FOLLOWING INFORMATION CAREFULLY FOR A CORRECT
INSTALLATION AND OPTIMAL OPERATION OF THE OVEN.
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E N G E N G

WARRANTY INSTALLATION
The warranty DOES NOT apply in the following cases:
• If the oven is NOT properly used and installed as described in this manual.
• In the event that the oven has been tampered with in any way, voluntarily or involuntarily.
• In the event that adequate maintenance has not been carried out. Damage to the burner
due to cooking residues or the use of other fuels is not covered by the warranty.
• In the event that the oven, for any reason, has been altered and is no longer in the condi-
tion found when the product is delivered.
• If you HAVE NOT used only the recommended fuel. Do not use liquid charcoal for barbe-
cue, chemicals or other fuel.
• In the event that the damage is the result of the use of chemicals inside or outside the
oven.
• The door is not under warranty.
• Damage due to exceeding the indicated temperature of the pyrometer supplied. Above
450°/500°C (840°/1000°F).
• If components not produced or recommended by the manufacturer are used.
• Damage to non-functional and decorative parts that do not affect normal oven use, in-
cluding scratches and colour differences.
• In the event that the plate is removed, altered or deleted
• Tables are not covered by warranty, additional spare parts can be purchased on request.
In compliance with Italian and European regulations, ovens are covered by the legal
guarantee, payable by the retailer, 24 months from the date of purchase. After the 24-
month warranty period, all repairs will be borne by the consumer.
YOU ARE REQUIRED TO KEEP THE RECEIPT OR PURCHASE INVOICE TO BE
SHOWN TO THE RETAILER. PLEASE NOTE THE SERIAL NUMBER ON THE PRODUCT
IDENTIFICATION PLATE BELOW
Good maintenance and proper use can help prolong the shelf life of the product. It is ad-
visable to store the oven indoors in the winter months to protect it from the elements.
Otherwise it is advisable to protect the oven with an oven cover.
WARNING. Oven exterior walls may reach temperatures above 50°C (120°F) any
flammable materials must not be within 1 meter of the oven. It is recommended to place
the oven during use at a sufficient distance from flammable materials or materials that may
be damaged by heat.
IMPORTANT. Exposure to strong wind or draughts could alter the performance of the oven
IMPORTANT. Place the oven on a flat surface and make sure it is perfectly stable.
Unintentional movements during use can be very dangerous.
IMPORTANT: Place the oven at a minimum distance of 20 cm from the walls and any other
equipment. Increase the minimum distance to 50 cm around the flue and 1m from the top
of the oven.
FREE-STANDING OVENS MUST BE POSITIONED ON TABLES OR OTHER FIRE-RESISTANT
SURFACES OF ADEQUATE BEARING CAPACITY (for weight refer to the product data sheet),
IF PRESENT, ADJUST THE FEET TO LEVEL THE FURNACE ON THE SUPPORT SURFACE.
To facilitate handling and positioning, we recommend removing the chimney, door and
the stones placed inside the combustion chamber.
~50 CM ~50 CM
~100 CM
~20 CM ~20 CM ~20 CM
6 7
E N G E N G

CONNECTION
ONLY FOR LPG MODELS
The cylinder, always equipped with a pressure regulator (not supplied), must be
connected to the oven via a flexible rubber tube (not supplied) suitable for use and
between 60 and 150 cm in length. The oven inlet connection has a G1/2” F thread on
which to attach a specific adapter to connect to the LPG cylinder according to US
regulations.
In the example, we see a hose connection (not universally applicable) where the hose
must be tightened with a clamp in order to avoid accidental losses or disconnections. The
cylin-der must always be equipped with a fixed calibration pressure regulator (not
supplied) for the type of gas used and depending on the country of destination. Avoid
twisting, bending or crushing the hose. If there are obvious signs of wear or the date of
use imprinted on the tube has expired, replace it immediately.
Pressure REGULATOR (not supplied):
This appliance must be equipped with a pressure regulator in compliance with local/natio-
nal standards and/or regulations with a nominal pressure output of:
CATEGORY I3+(28-30/37) Propane 37 mbar. Butane 28-30 mbar.
CATEGORY I3B/P (30) Propane/Butane 30 mbar
CATEGORY I3B/P (50) Propane/Butane 50 mbar
NEVER USE AN UNREGULATED GAS SOURCE.
HOSE (not supplied):
The inlet pipe of the user must NOT be less than:
ؽ” = Ø14 mm for Methane
ؼ” = Ø 8 mm for LPG (Max length 1.5 meters)
CYLINDER
• We recommend using cylinders weighing no more than 10 kg if you want to place a cart
under the oven.
• Maximum length of the gas pipe allowed 1.5 m.
• Always handle the cylinder with care. Never place it in a horizontal position as the valve
may become damaged.
This could cause serious safety issues. Always use the cylinder upright. If positioned
horizontally, the cylinder could allow the combustible liquid to reach the pipes, creating
damage with risk of explosion.
• Always place the cylinder in an accessible place to facilitate opening and closing in case
of emergency.
• Never subject cylinders to heat. The internal pressure could increase and exceed its sa-
fety limits.
• Never store butane or propane gas cylinders (even if empty) in the house, cellar or ba-
sement. Propane gas is heavier than air, if there is a leak the gas will accumulate at the
lowest level and become dangerous in the presence of a spark or flame.
• Never store replacement or even empty Butane or Propane gas cylinders near the ap-
pliance in use “danger of fire and/or explosion”.
CONNECT THE LPG CYLINDER TO THE OVEN
HOSE
CONNECTOR
G1/2” M
G1/4” M LH ADAPTER
WITH SEALING CONE
(NOT INCLUDED)
G1/2” F
24 MM
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E N G E N G

When storing the appliance for long periods of unused time, remove the cylinder
and cover it so that good ventilation can be guaranteed to reduce condensation.
Store the Cylinder outdoors in a well-ventilated area.
This gas appliance must not be altered or tampered with.
This unit comes standard as Propane (LP), if converting to Natural Gas, any
modifications must be carried out by a certified plumber.
Regular maintenance is advisable.
See maintenance instructions.
REGULAR MAINTENANCE
When the oven is cold or before each use, remove any food residue from the hob
due to previous preparations. With a vacuum cleaner clean and release the area
around the burner to avoid malfunctions due to ash or food residues. The external
parts must be kept clean regularly to prevent oxidation phenomena, especially ste
el parts. Use specific products for stainless steel where present. Even if the steel is
of good quality over time and if not treated regularly it could present surface stains
that in no way compromise the safety and functionality of your oven. Oxidation
phenomena can occur in the presence of salt and/or moisture. After cleaning for
better protection apply a light layer of vaseline oil. If not used for a long time, place
the oven in a dry and ventilated environment or protect it with a suitable cover that
guarantees ventilation and prevents condensation phenomena.
Note: if the occasions of use are interspersed with long periods of unuse, try to
clean the oven immediately afterwards and as soon as it has cooled down because
dirt from greasy residues and/or acidic foods could damage and stain the steel
parts making it difficult to clean them after a long time.
Follow the precautions and advice listed in the “installation” paragraph to position
the oven correctly and safely. In models equipped with a trolley after positioning,
ensure the stability of the oven to avoid accidental movement during use, prefer
hard or compact surfaces so as not to alter the oven’s structure during use. In the
free standing models (support) make sure that the support surface is fireproof. If
the oven is placed on a piece of furniture, make sure that it is strong enough to
support its weight. Always leave one side open if the cylinder is placed inside the
cabinet or provide adequate air intakes to avoid gas accumulations that could re-
sult in fires or explosions. Adequate ventilation is also used to prevent the cylinder
from overheating.
In the event of malfunction and/or fire, it must be possible to intervene promptly
to close the cylinder valve and secure it. Never store spare (even empty)
cylinders near the oven, they must be stored safely.
G1/2” F
SERVICE
STORAGE AND PRESERVATION
INDICATIONS FOR USE AND TECHNICAL CHARACTERISTICS.
10 11
E N G E N G

CATEGORY 2H , 2E , (20 mbar ) injector Ø
2.25mm (all countries exception BE,FR)
CATEGORY 2E+ (20/25 mbar ) injector Ø
2.25mm (BE , FR )
50 mbar (butane G30, propane G31 or mixtures
G30/G31) CATEGORY I3 B/P (50 mbar ) injector Ø
1.30mm
(DE , AT , CH , SK )
The maximum potential of the system for each gas category
(LPG+METHANE) is around: 9 kW/h
28-30 mbar (butane G30) -37mbar (propane G31)
CATEGORY I3+(28-30/37 mbar ) injector Ø 1.50mm
(BE , CH , CY , CZ , ES , FR , GB , GR , IE , IT , LT , PT , SI , SK )
28-30 mbar (butane G30, propane G31 or mixtures G30/G31)
CATEGORY I3 B/P (30 mbar ) injector Ø 1.50mm
(BG , CY , DK , EE , FI , GR , HU , IS , LT , LV , MT , NO , NL , RO , SE , SI )
These indications are valid for the entire MAESTRO series, below the technical
characteristics of the MAESTRO 40 and 60 models that have the components in
common but differ in nominal power.
N.B. moving the oven is allowed only if it is cold and after closing the cylinder
valve if it is housed under a trolley. If the cylinder is outside the trolley, it is
advisable to close the valve and disconnect it before moving the oven to avoid
tipping over and/ or damage to the cylinder that could compromise its use and
functionality with the risk of causing fires and/or explosions.
CATEGORY 2H , 2E , (20 mbar ) injector Ø
2.00mm (all countries exception BE,FR)
CATEGORY 2E+ (20/25 mbar ) injector Ø
2.00mm (BE , FR )
The maximum potential of the system for each gas category
(LPG+METHANE) is around: 7 kW/h
28-30 mbar (butane G30) -37mbar (propane G31)
CATEGORY I3+(28-30/37 mbar ) injector Ø 1.30mm
(BE , CH , CY , CZ , ES , FR , GB , GR , IE , IT , LT , PT , SI , SK )
28-30 mbar (butane G30, propane G31 or mixtures G30/G31)
CATEGORY I3 B/P (30 mbar ) injector Ø 1.30mm
(BG , CY , DK , EE , FI , GR , HU , IS , LT , LV , MT , NO , NL , RO , SE , SI )
50 mbar (butane G30, propane G31 or mixtures G30/G31)
CATEGORY I3 B/P (50 mbar ) injector(Y) Ø 1.10mm
(DE , AT , CH , SK )
Model: MAESTRO 60 Model: MAESTRO 40
LPG (G30-G31)
METHANE (G20-G25)
LPG (G30-G31)
METANO (G20-G25)
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E N G E N G

FIRST IGNITION
After connecting the gas line to the oven, check the tightness of the connections and pos-
sibly resolve any leaks. With the knob in the off position, press and check if the igniter is
working. If everything works, open the tap on the cylinder and proceed with the ignition
as described below.
When the oven is open, turn the knob to the maximum power position and press. The
electronic igniter is connected to the knob and is activated when the knob is
pressed. Press and hold the knob for a few seconds even after switching on so that
the thermocouple can come into operation and keep the gas flow open on the valve
In the first phases after changing the cylinder and reopening the valve, it may not turn on
immediately because the circuit is empty. Insist for a few seconds. If the ignition does
not start after a couple of attempts, wait a few minutes to allow any unburned gas to
disperse and then try the ignition again.
Any accumulation of gas could give rise to flames and/or potentially dangerous detona-
tions causing damage, burns or death in extreme cases.
Once lit it is possible to adjust the flame by turning the knob between the min<max posi-
tions
IMPORTANT
Before turning on the oven, check all connections and gas connections. Do not lean
over the oven and stay away from the door with your face.
When the oven is switched on, the mouth of the oven must be open.
Do not move the oven during use.
CAUTION: CHECK FLAME AFTER IGNITION.
All burner holes should show a flame of about 2.5cm on max knob position. If you
smell gas, if backfire occurs, if the burner makes small bursts or the flames are uneven
along the length of the burner there may be a problem with the venturi tube.
SWITCH THE OVEN OFF IMMEDIATELY.
Once the cooking is finished or at the end of use, correctly follow the shutdown procedure
below. When the flame is still on, close the tap on the cylinder and wait for the burner to
turn off, only after turning the knob to the “closed” position.
This ensures the complete emptying of the circuit from the gas.
IGNITER: If it does not work, the air/gas mixture fails to ignite, check the status of
the igniter batteries (1.5v AA), if discharged or with signs of oxidation replace them.
For long periods of non-use it is advisable to remove the battery to avoid malfunctions
or damage to the igniter itself. If the battery is good, check the cable and spark plug if
they are damaged and/or disconnected, replace if they are damaged. Check if the
circuit works correctly by pressing the button with the gas closed, if you see the spark
pop on the burner it means that the circuit works otherwise check the connections
again. If the battery, cables and spark plug are connected correctly but the system is
not working, the spark generator must probably be replaced. (See dedicated section
for parts replacement)
VALVE: if damaged, it may not allow gas to pass or interrupt the flow.
If the knob is in the “max flame” position, the gas flow does not pass, make sure that you
have first opened the valve on the cylinder (and that it is full) or the gas tap. In the first
phases of ignition, keep the knob pressed to bypass the safety of the thermocouple and
be able to ignite the flame. If YOU manage to ignite the flame but when the knob is
released it goes out, it means that the thermocouple has not yet reached the
temperature to keep the circuit open, repeat the ignition procedure and keep the knob
pressed for longer. If after this operation the flame goes out, check that the
thermocouple is connected and in position and that it is not damaged, in this case
replace it. If the thermocouple is replaced but the problem is not solved, the valve must
probably be replaced. (See dedicated section for part replacement). It could also happen
that the ignition takes place correctly but by putting the valve knob in the minimum
position the flame cannot be switched on indepen- dently; in this case it is necessary to
act on the minimum register by raising the gas supply (the adjustment is fixed and set at
the factory and must not be modified, but in case of replacement of parts a new
adjustment may be necessary).
FAILURE TO SWITCH ON OR MALFUNCTIONS
CAUSES AND REMEDIES:
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E N G E N G

BURNER: may backfire and partially ignite.
If there are flame returns, immediately close the gas supply (cylinder or domestic line)
and turn off the fire. Probably the venturi tube has obstructions that must be removed,
even simple cobwebs can compromise its operation. If the flame front does not burn
completely over the entire length of the burner in addition to not heating well, crackles or
flame returns may occur; in this case make sure that all the burner holes are free and not
obstructed by food residues from previous uses. If previous adjustments or injector
replacements have been made, make sure that the air/gas carburation is correct for
optimal operation. It may also depend on fitting an incorrectly sized calibrated hole
injector to the gas used. If there are no obvious obstructions, the holes are regularly
opened and the carburation is regular but the problems still exist, it may be necessary to
replace the entire burner as it is defecti- ve or worn. (See dedicated section for part
replacement). If regularly maintained, cleaned and used correctly, its duration over time
is considerable.
Have a technician perform the control and maintenance operations. Some
malfunctions may also depend on the incorrect positioning of the sensors on the
burner. If the thermocouple is not at the correct distance from the support on the
burner, it could misread the temperature and not work properly or wear out quickly and
have a short life cycle. The same applies to the ignition spark plug, if it is too far away it
may not be able to release the spark to ignite the burner or if it is brought into contact
with the burner the pulse is discharged without generating the spark.
WEAR PPE (gloves or similar) TO AVOID ACCIDENTS AND BURNS.
Even the door handle, despite being made of silicone, after prolonged use of the oven
could burn if not handled with gloves
WARNING! DANGER OF BURNS. VERY HOT
PARTS DURING OPERATION OF THE APPLIANCE.
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E N G E N G




MAESTRO 40 MAESTRO 60
CATEGORY I3+(28-30/37)
CATEGORY I3B/P(30)
CATEGORY I3B/P(50)
CATEGORY 2H , 2E (20 mbar )
CATEGORY 2E+ (20/25 mbar )
MAX POWER 7Kw (509 g/h LPG --- 667dm³/h NG)
Ø INJECTOR
1.30 mm
1.30 mm
(model Y) 1.10 mm
Ø INJECTOR
2.00 mm
2.00 mm
CATEGORY I3+(28-30/37)
CATEGORY I3B/P(30)
CATEGORY I3B/P(50)
CATEGORIA 2H , 2E (20 mbar )
CATEGORIA 2E+ (20/25 mbar )
POTENZA MAX 9Kw (655 g/h LPG --- 858dm³/h NG)
Ø INJECTOR
1.50 mm
1.50 mm
1.30 mm
Ø INJECTOR
2.25 mm
2.25 mm
NG
LPG
NG
LPG
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E N G E N G

DISPOSAL INFORMATION:
THE PRODUCT AT THE END OF ITS LIFE MUST BE DELIVERED TO THE APPROPRIATE COL-
LECTION CENTRES FOR BULKY FERROUS, ELECTRICAL OR ELECTRONIC WASTE
EXAMPLE OF DATA PLATE (the shape may vary while maintaining the same pattern
of information) NOTES
20 21
E N G E N G

F O N T A N A F O R N I U S A
FONTANA FORNI USA
1305 East Palmetto Street
Florence, South Carolina 29506
[e-mail]
www.fontanaforniusa.com