Mono Harmony FG257 USA User manual

© 2023, MONO Equipment Limited Y-DXT-UL | Rev. B23 (Aug 2023)
MonoEquip.com
MONO Harmony Deck Oven
Installation and Operation Manual
EN
ECO Touch control
Product Version
USA specification
Modular decks
ECO Touch control
Deck 1
Deck 2
Deck 3
Enter Serial Nos. here.
Deck 4
Deck 5
Fan
(If fitted)
In the event of an enquiry please
quote these serial numbers.

Installation and Operation Manual Harmony Modular Deck Oven | FG257 | USA
Y-DXT-UL | Rev. B23 (Aug 2023) MONO 2
Warning and information labels
Warning label, to reduce risk of fire or electric shock. Do not remove the cover (or back).
No user serviceable parts inside. Repair should be done by authorized personnel only.
Warning label, to warn of hot surfaces.
Light replacement power warning.
Multiple Supply Cord Information.

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Safety Symbols
The following safety symbols are used throughout this product manual. Before using your new equipment, read the
instructions carefully and pay special attention to the information marked with the following symbols:
DANGER Indicates an immediate hazard with a high risk of death or serious
physical injury if not avoided.
WARNING Indicates a potential hazard with a medium risk that could result in death
or serious physical injury if not avoided.
CAUTION Indicates a hazardous situation that could result in minor or moderate
injury if not avoided.

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Electrical Safety Notice
Electrical safety and advice regarding supplementary
electrical protection
Commercial kitchens and food service areas are environments where electrical appliances may be located close to
liquids, operate in and around damp conditions or where restricted movement for installation and service is evident.
The appliance installation and periodic inspection should only be undertaken by a qualified, skilled, and competent
electrician and connected to the correct power supply suitable for the load as stipulated by the appliance data label.
The electrical installation and connections should meet the mandatory requirements of the local electrical wiring
regulations and any safety guidelines.
We recommend:
Supplementary electrical protection with the use of a residual current device (RCD)
Fixed wiring appliances should also incorporate a locally situated switch disconnector to connect to, which
is easily accessible for switching off and safe isolation purposes. The switch disconnector must meet the
specification requirements of IEC 60947.
Your attention is drawn to the following:
BS 7671:2018 – Guidance Note 8 – 8.13: Other locations of increased safety risk
It is recognized that there may be locations of increased risk of electrical shock other than those specifically
addressed in Part 7 of BS 7671. Examples of such locations could include laundries, where washing and drying
machines are nearby, and water is present, and commercial kitchens with stainless steel units where, once again,
water is present. Where, because of the perception of additional risks being likely, the installation designer decides
that an installation or location warrants further protective measures, the options available include:
Automatic Disconnection of Supply (ADS) using a residual current device having a residual operating
current not exceeding 30 mA;
Supplementary protective equipotential bonding; and
Reduction of maximum fault clearance time.
The provision of RCDs and supplementary bonding must be specified by the host organization’s appointed
installation designer or electrical contractor and installed by a suitably qualified and competent electrician to comply
with Regulations 419.2 and 544.2.
WARNING The supply to this machine must be protected by a 30mA-rated Type ‘A’
Residual Current Device (RCD).
Before installation, it is recommended that a qualified and competent
electrician first tests the electrical outlet for electrical safety.

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Water Leak Safety Notice
WARNING Take action immediately to get a water leak fixed and prevent death or
serious injury from electrocution.
It is essential to regularly check for any signs of a water leak from an oven installation. If there is evidence of a water
leak, do not ignore it. Immediately report it to a manager or as applicable to your organization.
Furthermore:
Disconnect or completely isolate the oven from the electrical supply
(see Emergency Instructions section on page 20).
Place an out-of-service notice on the oven.
Contact your oven supplier or MONO Equipment for technical assistance.
Ovens must be maintained and serviced at appropriate intervals to ensure the oven operates at optimum levels.
See the Maintenance section on page 65.

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General Notices
CAUTION Users with Implantable Cardioverter Defibrillators and Pacemakers
– Several common types of devices and machinery may interfere with
implantable cardioverter defibrillators (ICDs) and pacemakers, including
mobile phones, headphones, radios, machinery, and magnets.
– The electromagnetic waves generated by these devices can keep your
ICD or pacemaker from functioning correctly. Try to avoid them, or at
least minimize your exposure to them.
– Your healthcare professional can advise you about specific devices and
machinery to avoid.
NOTICES Warranty information
– Ambient working temperatures for electrical components, such as
solenoid switches, circuit breakers and motors, should not exceed 40 °C
(115 °F). Manufacturers of these, and other electrical components,
advise that any ambient temperature above this affects the functionality
of the components. Any related guarantees become void.
– It is the owners’ responsibility to ensure adequate ventilation is
provided. Any component malfunctioning during the guarantee period
found to have been subjected to excessive humidity or ambient working
temperatures is not covered by the component manufacturers or MONO
Equipment’s product warranty.
– Failure to adhere to the cleaning and maintenance instructions detailed
in this User Manual also could affect the warranty of this machine.
– Visit the MONO Parts and Labour Warranty page for further information.
Continuous improvements
– Our policy is to improve our machines continuously, and we reserve the
right to change specifications without prior notice.
Engineers/Electricians-only sections of the User Manual
– Technical sections of this User Manual are for suitably experienced and
qualified persons (SEQP) only. Customers must never make any
modifications or repairs to MONO’s machines.

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Installation and Operation Manual Harmony Modular Deck Oven | FG257 | USA
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Contents
Page
1. Introduction .................................................................................................... 10
2. Overall Dimensions........................................................................................ 11
3. Specifications ................................................................................................. 12
Electrical specifications ........................................................................................................... 12
Environmental specifications .................................................................................................. 12
Mechanical specifications ........................................................................................................ 13
Deck oven dimensions ............................................................................................................. 14
4. Safety .............................................................................................................. 17
General safety messages ......................................................................................................... 17
Oven safety messages.............................................................................................................. 17
Emergency instructions .......................................................................................................... 19
5. Installation ...................................................................................................... 20
General ....................................................................................................................................... 20
Electrical connections .............................................................................................................. 20
Fit earth straps (part no. 158-25-11200) .................................................................................. 20
Fit the tile retaining brackets (part no. 257-06-00015) ........................................................... 21
Water supply requirements ...................................................................................................... 21
Water system setup procedure................................................................................................ 22
Exhaust Connections (if canopy fitted) .................................................................................. 23
6. Before First Use of the Oven......................................................................... 25
Operating conditions ................................................................................................................ 25
Baking tile ‘seasoning’ instructions........................................................................................ 25
Baking principles ...................................................................................................................... 27
7. Touchscreen Operation ................................................................................. 29
Basic operation ......................................................................................................................... 30
Baking using the “Favourites” menu...................................................................................... 31
Baking using the “Manual Bake” menu .................................................................................. 34
Baking using the “Programmes” menu .................................................................................. 37
Creating a program ................................................................................................................... 40
7-Day timer ................................................................................................................................. 47
Settings ...................................................................................................................................... 48
8. Using the USB Port ........................................................................................ 54
9. Diagnostics..................................................................................................... 58
10. Passcodes ...................................................................................................... 59

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11. Cleaning .......................................................................................................... 61
Daily cleaning instructions....................................................................................................... 61
Weekly cleaning instructions................................................................................................... 61
12. Troubleshooting ............................................................................................. 62
13. Service ............................................................................................................ 63
Oven spares ............................................................................................................................... 63
Service Information................................................................................................................... 64
Disposal...................................................................................................................................... 64
14. Maintenance.................................................................................................... 65
General maintenance ................................................................................................................ 65
Light bulb replacement............................................................................................................. 65
15. Oven Electrics ................................................................................................ 67
Electrical drawings.................................................................................................................... 73
Electrical panel main components .......................................................................................... 80
16. Location of Warning and Information Labels .............................................. 85

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1. Introduction
The electric modular Deck Oven is an easy-to-use practical, good-looking oven, giving an excellent heat recovery
rate and an even bake across a wide range of bread and confectionery products.
Good looking and completely reliable
Conceived with the no-nonsense requirements of both the independent and in-store baker in mind, designed to be
visually pleasing and give reliable service for many years visually. This oven will more than satisfy the most
discerning customer.
Top-quality specification
The external and internal contact surfaces are stainless steel.
Each modular deck has one or more durable reinforced tiles, high-grade insulation, and high-temperature ceramic
sealant to make the oven more efficient.
The oven comes with a patented integral steaming system, which reduces energy consumption and the overall size
of the oven. The system produces natural steam with the advantages of spray steam. Pre-steam is also available
to reduce the effects of long loading times.
No drainage is required.
Eco-touch ovens are supplied with TOUCH displays for user-friendly control panels. The displays can show
pictures of product types or program numbers to meet the bakery’s requirements. When not being used, the screen
can show a company logo. A voice-prompt facility is also available for basic instructions such as “Bake over”.
The lights are low voltage, sealed from the chamber and easily accessed from outside the oven.
Fitted with a choice of hinged easy to clean glazed doors (using low energy-loss reflective glass for high visibility)
or metal doors, means low energy consumption and the high kW rating gives good recovery.
(0-100% heating available both top and bottom).
As it is our policy to improve our machines continuously, we reserve the right to change
specifications without prior notice.
ECOTOUCH
SCREEN
CONTROLS

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2. Overall Dimensions
NOTE All dimensions are approximate and do not include the optional canopy
(see pages23 and 24).
Overall dimensions
Specification 1-tray wide 2-trays wide 3-trays wide 4-trays wide
Width 955 mm (37½ in.) 1416 mm (55¾ in.) 1890 mm (74½ in.) 2365 mm (93 in.)
Depth 1312 mm (51½ in.)
Height (2 decks) (1) 2020 mm (79½ in.)
Height (3 decks) (1) 2020 mm (79½ in.)
Height (4 decks) (1) 2020 mm (79½ in.)
Height (5 decks) (1) 2140 mm (84¼ in.)
(1) Including the base and top finishing. See pages14 and 15for dimensional diagrams.
H
D
W

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3. Specifications
Electrical specifications
WARNING An electrical socket must be protected by a 30mA-rated Type ‘A’ Residual Current
Device (RCD) before installation and commissioning of the oven.
Always fit a wall mounted isolator switch to isolate the oven from the electrical
supply completely. The isolator must be visible, clearly labelled, and easily
accessible by an operator.
Always check the electrical ratings on the nameplate before connecting power.
The electrical loadings in Table 1and Table 2are for an individual deck module, not the complete oven.
Table 1: Electrical loading per standard-sized modular deck
Supply 3-trays wide 2-trays wide 1-tray wide
3 phase (3 wires+ground), 220 Vac (60 Hz) 8.85 kW, 24 Amp 5.93 kW,18 A
mp
3.0 kW, 9 Amp
3 phase (3 wires+ground), 208 Vac (60 Hz) 7.90kW, 22 Amp 5.31 kW,17
Amp
2.7 kW, 8.7Amp
3 phase (3 wires+ground), 480 Vac (60 Hz) 8.78 kW, 12.4 Amp 5.86 kW, 8.2 A. 4.9 kW, 7 Amp
Table 2: Overload protection for each modular deck
Overload protection 3 trays-wide 2 trays-wide 1-tray wide
Each modular deck 20 Amps20 AmpsContact MONO
NOTE Whenever connecting power to the oven, eight minutes must elapse before the
oven’s steam function can be used. The bottom elements require enough time
to heat up for steaming. This waiting time applies even if the power is
disconnected and connected again, and the oven is still hot.
Environmental specifications
The noise level is less than 80 dB.

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Mechanical specifications
Table 3: Weights for standard-size deck oven
Specification Nominal
trays wide
Modular
decks
Weight (1)
Lbs Kg
Total oven weight
(including base frame)
4 3 (1) (1)
3 3 2345 1064
2 3 1569 711
1 3 (1) (1)
Weight per oven
chamber module
4 - (1) (1)
3 - 575 261
2 - 421 191.5
1 - (1) (1)
Weight per oven
canopy module
4 - (1) (1)
3 - 38 17
2 - 31 14
1 - (1) (1)
Weight per fan module
4 - (1) (1)
3 - 62 28
2 - 62 28
1 - (1) (1)
Weight of product
(maximum)
per deck
4 - (1) (1)
3 - 131 60
2 - 86 39
1
-
(1) (1)
(1) To be advised. Contact MONO Equipment for information.
(2) All weights are approximate.

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Deck oven dimensions
5 DECK OVEN
DECK PLATE HEIGHTS
4 DECK OVEN
DECK PLATE HEIGHTS
3 DECK OVEN
DECK PLATE HEIGHTS

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A. Top valence or extractor hood (to customer specifications)
B. 5-deck: 78.2 in. (1985 mm); 4-deck and 3-deck: 73.6 (1870 mm)
C. 5-deck: 78.2 in. (2135 mm); 4-deck and 3-deck: 73.6 (2020 mm)
D. Baking chamber width – see Table 5on page 16
E. Overall deck width – See Table 6on page 16
F. Baking tiles – See Table 7on page 16
G. Chamber
Table 4: Internal usable surface areas and number of trays per deck
Nominal
trays
wide
Internal usable
surface area
(per deck)
Number of trays (per deck)
ft218 in. x 30 in. 18 in. x 26 in.
3 12.5 ft23 3
2 8.28 ft22 2
1 4.2 ft21 1

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Table 5: Baking chamber widths
Number
of trays
Chamber width
mm inches
1 483 19
2 950 37
3 1420 56
Table 6: Overall deck widths
Number
of trays
Deck width
mm inches
1 955 37½
2 1416 55¾
3 1890 74½
Table 7: Baking tiles
Number
of trays
Number of baking tiles
(pieces)
1 1
2 1
3 1
NOTE See pages23 and 24 for canopy dimensions.

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4. Safety
General safety messages
CAUTION Magnets information:
−Magnetic fields in magnets, used in devices and machinery, can inhibit pulse
generators for Implantable Cardioverter Defibrillators (ICDs) and pacemakers.
Magnets can activate a switch prohibiting the ICD from delivering vital signals
such as lifesaving shocks.
−If you have an ICD or pacemaker, avoiding close or prolonged contact with
magnets or their magnetic fields is advisable. Keep magnets at least six inches
from where your device is implanted. If you feel any interference in any way,
immediately move away from the source.
Oven safety messages
Only fully trained and authorized persons are permitted to work on the oven. Qualified electricians must carry out
all repairs and maintenance. Always disconnect or isolate the power supply before starting maintenance or
cleaning work on the oven.
A responsible Bakery Manager or Supervisor must carry out daily safety checks. Bakery staff must not, under
any circumstances, remove covers or panels to access any part of the oven.
DANGER Never use the USB port to power or recharge electronic devices, e.g. mobile
phones. Incorrect usage causes damage to the oven and could result in a fire.
WARNING Before using the oven:
−Ensure all covers, panels, cables, and pipe fittings are secure.
−Visually examine the oven for apparent damage or signs of tampering.
If the oven is damaged or malfunctioning, or missing parts:
−Stop using it.
−Do not attempt any repairs.
−Contact MONO Equipment for technical assistance.
Never operate the oven with any covers or panels removed.
All utility connections to the oven must comply with the statuary requirements of
the country where the oven is installed.
Ensure this product manual is read thoroughly before operating the oven. Operate
and maintain the oven only as described in this product manual.

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WARNING An electrical socket must be protected by a 30mA-rated Type ‘A’ Residual Current
Device (RCD) before installation and commissioning of the oven.
Always fit a wall-mountable isolator switch to isolate the oven entirely from the
electrical supply in an emergency. The isolator must be visible, labelled as an
emergency shutdown device, and easily accessible.
Check that the electrical requirements on the oven’s information plate match the
supply before connecting the power cable and turning the power on for the first time.
Before installation, it is recommended that a qualified and competent electrician
first tests the electrical outlet for electrical safety.
Always ensure your hands are dry before touching any electrical components,
including cables, switches, and plugs.
CAUTION Be aware of hot surfaces:
−Do not touch the oven door with bare skin.
−Always use oven gloves when loading or unloading the oven.
−Allow time for the oven to cool down before cleaning it.
−While the oven is in operation (and for some time after use), touching the oven
door or the surrounding panels is inadvisable because of conducted heat.
When removing products from the oven, ensure the following:
– Tins are knocked out and stored directly onto a tin storage trolley or rack.
Do not leave hot tins on the floor or tables.
– Trays are put into a rack and then wheeled to a safe cooling area.
Fully train operatives before they use the oven. Anyone undergoing training must
be under the direct supervision of someone experienced.
Ensure there are no trip hazards around the oven, e.g. trailing cables.
Check that the floor around the oven is not slippery, e.g. no liquid spills.
Do not store items on top of or behind the oven.
Never climb onto the roof of the oven.
Only use the oven for baking bread, pastries, and cakes.
Contact MONO Equipment for other product-baking machines.
No unauthorized modifications to the oven are permitted.

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Emergency instructions
To stop the oven in an emergency, switch it off using the main isolator on the oven.
A wall-mounted isolator, rated for the specific model of oven installed, must be available to isolate the oven in an
emergency completely. The isolator must be accessible and known to the oven operator.
Figure 1: Main isolator switch on the oven
WARNING
Main isolator

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5. Installation
General
A solid, smooth, level floor is recommended on which to position the oven, and access for maintenance
should be considered.
The oven is not designed to be a “built-in” design. Sufficient clearance must be left in front of the access
panels (right-hand side) for servicing.
If not chosen as an oven option, an extraction hood should be sited above the oven to disperse excess
steam and heat, which could adversely affect the bakery ceiling and ambient temperature.
A chain retainer, shorter than the power cables, should be fitted to protect them from strain if the oven
moves. Fit it to the wall or floor and the base, using the hole in the castor fixing corner plates.
Only trained engineers are authorized to install this oven. All water and electrical connections must
comply with local and national regulations.
Electrical connections
The main connection point for all deck supplies is at the top of the oven.
A wall isolator must be available to isolate the oven completely. This isolator must be easily accessible
to the oven operator.
Read the Safety section on page 17.
Electrical loadings are in the Specifications section on page 12.
Fit earth straps (part no. 158-25-11200)
NOTE Factory-built ovens already have them fitted, but always check that they are fitted.
Figure 2: Connect earth (ground) straps between each modular deck