Marra Forni GFZ225 User guide

P RE P TABLES AND
REFRIGERED CABINETS
Use and Maintenance
®
Brick Oven Cooking Solutions

INDEX
1. GENERAL INFORMATION page 2
1.1 MANUFACTURER
1.2 SERVICE CENTRES
1.3 CERTIFICATION
1.4 GUARANTEE
1.5 PREARRANGEMENTS OF CUSTOMER'S RESPONSIBILITY
1.6 STRUCTURE OF THE MANUAL
1.6.1 AIMS AND CONTENTS
1.6.2 WHO THE MANUAL IS FOR
1.6.3 CONSERVATION
1.6.4 SYMBOLS USED
2. DESCRIPTION AND OPERATION OF THE APPLIANCE page 4
2.1 DESCRIPTION
2.2 OPERATION
3. PREARRANGEMENTS page 4
3.1 ILLUMINATION
3.2 VIBRATION
3.3 EMISSION OF SOUND
3.3.1 SUPPLIES ON REQUEST
3.4 SUPPLIES ON REQUEST
4.SAFETY page 5
4.1 GENERAL WARNING
4.2 FORESEEN USE
4.3 UNSUITABLE CONDITIONS FOR USE
4.4 DANGER ZONES
4.5 SWITCHING OFF THE APPLIANCE
4.6 PLAQUES
5. TRANSPORT AND MOVEMENT page 8
5.1 TRANSPORT AND MOVEMENT
5.2 STORAGE
5.3 CHECKS
6. INSTALLATION page 8
6.1 SET UP
6.2 ASSEMBLY
6.3 PREARRANGEMENTS
6.4 CONNECTIONS
6.4.1 ELECTRIC
6.4.2 HYDRAULICS
6.4.3 PREARRANGEMENTS FOR OPTIONALS
7. OPERATION page 11
7.1 STAFF
7.2 PUTTING INTO OPERATION
7.3 TIMERS
7.4 REGULATION OF TEMPERATURE
7.5 STORAGE OF FOOD
7.6 CONSERVATION OF FOOD
8.
ROUTINE AND PLANNED MAINTENANCE page 12
8.1 BASIC SAFETY RULES
8.1.1 PROHIBITION OF REMOVAL OF PROTECTION AND SAFETY DEVICES
8.1.2 INDICATIONS FOR EMERGENCY OPERATIONS IN THE CASE OF FIRE
8.1.3 CLEANING OF THE EXTERIOR
8.1.4 CLEANING OF THE CONDENSER
8.1.5 PERIODIC CHECKS TO BE CARRIED OUT
9. NON-ROUTINE MAINTENANCE AND REPAIRS page 13
10.TROUBLESHOOTING page 14
11. SPARE PARTS page 14
11 .1 SUPPLY OF SPARE PARTS
12.DEMOLITION page 15
13 ENCLOSURES page 15
13 .1 DECLARATIONS
13 .2 TECHNICAL DOCUMENTATION

2
1. GENERAL INFORMATION
1. 1 MANUFACTURER
As the company boasts considerable experience in the field of industrial refrigeration.
The technological know-how acquired, created during years of research and close contact with the production
and marketing at an international level, represents the best guarantee that the manufacturer can offer.
This equipment has been studied inside, externally and in its components, according to the requirements
specified by your market. Furthermore every aspect has been checked for functioning and for appearance
before being despatched, as shown by the CERTIFICATE OF GUARANTEE AND INSPECTION included in
this documentation.
To guarantee the long life of this product, use it according to the suggestions made in this manual.
1.2 SERVICE CENTRES
(Sales, Service, Spare parts and Commercial Representation)
For any requirement pertaining to use, maintenance or the request for spare parts, the Customer should use
an authorised Service Centre (directly care of the manufacturer), specifying the identification details of the
equipment shown on the plaques:
C 1
See Plaque A
at paragraph 4.6
1.3 CERTIFICATION
The Condensed air Refrigerator Cupboards and Tables and Refrigerator Units are produced in accordance
with the European Community Regulations applicable at the time of its appearance on the market.
Because the refrigerator cupboard and table do not come into the ENCLOSED IV of the REGULATION
98/37/CEE, the manufacturer provides self-certification with the CE marking.
1. 4 GUARANTEE
The new equipment is covered by a guarantee.
The GUARANTEE CERTIFICATE is included with this booklet inside every product.
If this booklet is not present you can ask your supplier for it, specifying:
RETAILER'S STAMP

3
•The serial number (stamped on the relevant plaque, see paragraph 4.6);
•The date of purchase.
1. 5 PREARRANGEMENTS OF CUSTOMER'S RESPONSIBILITY
It is the Customer's responsibility to carry out everything specified in the documentation.
Unless different prior arrangements have been made, the following are usually the Customer's responsibility:
•Predisposition of the area, including any building work and or canalisation required;
•Electric power supply in accordance with the power regulations in the country of use;
•Cleaning materials.
1. 6 STRUCTURE OF THE MANUAL
The Customer must read the information contained in this Manual very carefully, because the correct
predisposition, installation and use are the basis of the Customer - Manufacturer agreement.
1. 6. 1 AIMS AND CONTENTS
This Manual aims to provide the customer with all the information necessary for not only adequate use of the
equipment, but also for the safest and most autonomous use possible. It contains information regarding
Technical aspects, Operation, Stopping, Maintenance, Spare Parts and Safety.
Before carrying out any operation on the equipment, the User and the Qualified Technicians must
carefully read the instructions contained in this Manual.
In the case of any doubts regarding the interpretation of the instructions, call the Retailer for clarification.
1. 6. 2 WHO THE MANUAL IS FOR
This Manual is aimed at both Retailers and users and also to maintenance workers qualified to carry out work
on the equipment.
The user must not carry out work reserved for qualified Maintenance workers and/or Technicians.
The Manufacturer is not responsible for any damage caused by lack of respect for this last regulation
1. 6. 3 SAFEKEEPING
The Manual for Use and Maintenance must be kept in the immediate vicinity of the equipment, in an
appropriate holder and, above all, protected from liquids and other substances that could make it illegible.
1. 6. 4 SYMBOLS USED
SYMBOL MEANING COMMENT
A ...
WARNING
Indicates a warning or a note on a key function
or useful information.
Pay great attention to text indicated by this
symbol
C ...
CONSULTATION It is necessary to consult the Instruction Booklet
before carrying out the operation

4
2. DESCRIPTION AND OPERATION OF THE APPLIANCE
2. 1 DESCRIPTION
The upright refrigerators are condensed air refrigerator units made up of:
•A condensing unit (outside cold storage room)
•An evaporating unit (inside cold storage room)
•A control panel (positioned on the condensing unit), ( see enclosed 13.2.3)
•Defrosting is of the electric type and it is automatic ( see enclosed 13.2.1).
•Condensation is air based.
2. 2 OPERATION
The upright refrigerators are refrigerator units which function by means of refrigerator compressor of the
airtight type. With air tight motion and alternative motion, powered by electricity (monophase or three phase)
and using as a refrigerant the fluid R404A / R134A
Principle of refrigerator operation cycle
In thermodynamics for the refrigerator cycle we intend the change of state which a certain body undergoes (for
example a refrigerating fluid). The passage of the refrigerating fluid from the liquid state to the gaseous state
takes place in the evaporator. Because this is an endothermic phenomenon, it needs heat which, when it
happens, is taken from the air which the evaporator comes into contact with. So, when coming out of the
evaporator, the vapours of the refrigerating fluid are sucked out by an air compressor and sent to the
condenser. If the latter takes away not only the heat that the gaseous refrigerating fluid has acquired during
the course of the evaporation (ENTALPIA DI EVAPORATION), but also the calorific equivalent of the
compression work, then the fluid returns to the liquid state.
Because liquefaction is an exothermic phenomenon, there is production of heat, which is disposed of through
air and through water.
The refrigerant fluid, leaving the condenser, passes through an expansion organ and returns to the evaporator,
thus completing the cycle.
3. PREARRANGEMENTS
3. 1 ILLUMINATION
The illumination of the area must conform with the POWER regulations of the country in which the equipment
is installed and must, in any case, guarantee good visibility at all points, it must not create dangerous
reflections and must allow for easy reading of the controls.
3. 2 VIBRATIONS
In conditions of use which comply with the indications for correct use, the vibrations are not enough to create
dangerous situations.
3. 3 EMISSION OF SOUND
The refrigerator unit is designed to reduce the level of noise at source . ( see attached 13.2.2)

5
3. 3. 1 SUPPLIES ON REQUEST
It is to be understood that any modification and/or addition of accessories must be explicitly approved
of and carried out by the Manufacturer.
A ...
WARNING
Any alteration or modification of the fridge made by the
operator and/or service operator is forbidden for security
reasons.
The manufacturer decline any responsibility for
unautorizated modifications.
3. 4 ELECTROMAGNETIC ENVIRONMENT
The refrigerator is designed to function correctly in an industrial electromagnetic environment, coming within
the Emissions and Immunities foreseen by the following regulations:
EN 50081-2 Electromagnetic compatibility - General regulation for emission Part 2 Industrial environments -
(1993)
EN 50082-2 Electromagnetic compatibility - General regulation for Immunity Part 2 Industrial environments -
(1995)
4. SAFETY
4. 1 GENERAL WARNING
The user must read very carefully the information given in this Manual, with particular attention to the
appropriate precautions for Safety listed in this chapter.
It is imperative that the User follows the list below:
•Keep the refrigerator clean and tidy;
•Do not remove or alter the plaques placed by the Manufacturer (see 4.6);
•Do not remove or bypass the safety systems;
•Do not touch the equipment with damp or wet hands or feet;
•Do not touch the equipment with bare feet;
•Do not insert screwdrivers or anything else between the protective cover and the moving parts;
•Do not pull the power cable to disconnect the appliance from the power supply;
•Before carrying out any cleaning or maintenance operation, disconnect the appliance from the electric
power supply, first switching off the main switch and then removing the plug.
4. 2 FORESEEN USE
The upright and/or table refrigerator has been conceived and built to be used in communities, restaurants,
hotels etc.
4. 3 UNSUITABLE CONDITIONS FOR USE
The upright and/or table refrigerator must not be used :
•For purposes which differ from those shown in 4.2
•In an explosive, aggressive atmosphere or where there is a high concentration of oily substances or
powders suspended in the air ;
•In an atmosphere with a fire risk ;
•Exposed to bad weather ;
•With adapters, multiple sockets or extension leads.

6
4. 4 DANGER ZONE
There are no danger zones during use because the upright and/or table refrigerator has all the
necessary safety devices.
If repairs or maintenance have to be carried out requiring the removal of the safety devices, it is
necessary first to make sure that all power sources have been switched off.
For this reason in the upright and/or table refrigerator it is necessary to deactivate:
-The electric plant, putting the main switch off and pulling out the plug.
At the end of any work, it is absolutely imperative that all safety devices are re-activated.
4. 5 SWITCHING OFF THE APPLIANCE
For switch off the fridge or table , is necessary to proceed as fallow:
•Turn the main switch on off position
•Remove power cable

7
4. 6 PLAQUES
Plaque regarding the characteristics of the appliance PLAQUE A
Example CE – PCT Example NSF - UL
Plaque regarding the Electrical apparatus PLAQUE B
Remove the tension before removing the protection
Plaque regarding the Electrical apparatus PLAQUE C
Earth symbol
Plaque regarding the Electrical apparatus PLAQUE D
Warning! The manufacturer and the retailer
decline all responsibility if the power line is not
protected by a high sensitivity magnetothermic
switch (IN - 16 A ID - 30 mA)
Plaque inside refrigerator PLAQUE E
Max. Level max. high load
A ...
WARNING
THE WARNING PLAQUES WHICH HAVE A
SAFETY FUNCTION MUST NOT BE
REMOVED COVERED OR DAMAGED.

Congratulations, you have just purchased the finest equipment that money can
buy and you should enjoy many years of exceptional service. This product has
been carefully inspected and tested to ensure its performance.
When you receive this, please carefully remove the front part of the crate, the
plastic liner and carefully inspect the product for damage. It is your
responsibility to file a freight claim with the freight company.
Before removing the product from the shipping skid,
PLEASE READ CAREFULLY
or damage will occur that will not be covered under warranty.
Because of the weight of the product, a fork truck must be used to remove it
from the shipping skid. Please use wood across the forks to prevent damage to
the lower trim and from damaging the base.
DO NOT ATTEMPT TO PULL THE PRODUCT OFF OF THE SKID OR
SEVERE DAMAGE WILL BE CAUSED TO THE BASE AND CASTERS
THIS WILL NOT BE COVERED UNDER WARRANTY.
FORKS
FORKS
WOOD FRONT AND BACK

Once the equipment has been unpacked and set in place, it must be cleaned
before using. Any mild spray-on cleaner can be used, such as Windex ,Formula
409 or mild soap and water. This will remove any manufacturing oils and ensure a
sanitary product.
If you have a prep table with a condiment rail, the prep table and condiment
rail must be plugged into different circuits or it will cause electrical issues that can
and will void the warranty. Both units require separate 20Amp circuits to operate
properly. The use of extension cords is not allowed and will affect the operation.
Now you are ready to attach the granite side and back rails to the granite
counter top.
•First thoroughly clean the granite countertop to remove any dust or oily
residue. Once dry, locate the long back piece of granite and then apply a
continuous bead of clean silicone to the bottom edge and carefully set it on
the back edge of the countertop, centering it between the 2 sides.
Pic 1
Pic 2
Pic 3

•Next find the left and right side splashes and make sure they are installed
correctly, again by applying a bead of silicone to the bottom edge and the
side. After applying silicone, position them on the countertop as shown in
pic 3.
Pic 4
Pic 5
•Next apply a bead of silicone to the top of the granite back splash and side
splashes to attach the condiment rail, see pic 3.
•Carefully lift the condiment rail onto the side and back splashes and center
it, ensuring that the sides and back have not moved and are square.
•Please allow 24 hours for silicone to cure before using.
•Any excess silicone can be trimmed off with a single edge razor blade or
paint scrapper.
•Please make sure that any heat producing equipment is at least 36” from the
right hand side of the prep table or condiment rail.
•Please ensure that any flour dust be kept to a minimum and if used, please
keep it to the left side of the rail or the condenser may have to be cleaned
more often.

The controller is preprogrammed for the most efficient use of each type of
table. The temperature can be programmed up or down, the defrost cycles
are preprogrammed and it will display any error codes.
•After 15 seconds the unit will show cooling and display the actual
temperature of the cabinet and should start to drop.

•To change the set point from the preprogrammed 37 degrees Fahrenheit,
push the menu button, use the up arrow key to get to change set, push ok,
then push the up or down arrow key to the set point you want, push ok, then
wait 15 seconds for the display to go back to the run mode.
•Once the unit has reached the set temperature the display will show paused
and the actual cabinet temperature.
If you have a condiment rail, the control will look like this. Again it is preset at
36 degrees and will maintain that temperature.
•The condiment rail is for holding product only.
•The product must be at the correct temperature, as the rail is not designed
to bring the product temperature down.
•The rail must have pans all of the way across the rail to hold temperature
of the product.
•The product must be covered during slow periods or the product may
start to absorb heat.
•At night, remove the product from the rail and place in the lower
refrigerated cabinet or in another refrigerated storage, do not leave in rail.
Cover the surface of the well with sheet pans or cardboard and leave
running. This will ensure your rail is ready to go the next day.
•If it is turned off, please cover the surface of the well with sheet pans or
cardboard and allow it to cool for a minimum of 1 hour before placing
product in the well.
Once the rail is plugged into its own dedicated 20A circuit, turn on the
green power switch and it will light up. The controller will also light up as shown
and will then switch over to the actual temperature of the well and the snowflake in

the upper left corner will be illuminated to show the compressor is running and the
unit is starting to cool.
The control will also show any error codes that may occur and service
should then be contacted to correct the error.
The control is preprogrammed to hold at 36 degrees F and to lower or
raise the temperature, push and hold the set button for 5 seconds and “machine
status” will appear, press the set key and using the up or down arrow keys, go to
Set, press the set key and using the up or down arrow keys adjust the temperature
to the desired setting, then press set to confirm. You must do this within 15
seconds or the screen will revert back to the previous run screen and you must start
again.
This equipment has been preset for maximum efficiency and should
provide many years of service for you.
36.0 oF

8
5. TRANSPORT AND MOVEMENT
READ CAREFULLY THE WARNINGS CONTAINED IN THIS MANUAL AS THEY SUPPLY
IMPORTANT INFORMATION REGARDING THE SAFETY OF INSTALLATION, USE AND
MAINTENANCE.
KEEP THIS MANUAL SAFE FOR FURTHER CONSULTATION.
5.1 TRANSPORT AND MOVEMENT
The transport and movement of the upright and/or table refrigerators must take place in the upright
position, respecting any indications shown on the packaging.
Transport must be carried out by qualified staff.
The upright and/or table refrigerators must be transported in such a way as to avoid any damage.
The appliance is prepared for transport with or without packaging depending on the means of transport and
the route. If packaged, it is in cardboard or wood, adequately protected.
Movement must be carried out using a lift truck or trans-pallets with suitable forks (length at least 2/3 of the
dimensions of the object)
Damage to the appliance caused during transport and movement is not covered
by the GUARANTEE. Repairs or substitution of damaged parts is at the
Customer's expense.
5. 2 STORAGE
In the case of long periods of inactivity, the upright and/or table refrigerators must be stored with attention to
the relevant storage place and time:
•Store the upright and/or table refrigerator in an enclosed area;
•Protect upright and/or table refrigerator from bumps or stress;
•Protect upright and/or table refrigerator from high thermal variation;
•Avoid upright and/or table refrigerator coming into contact with corrosive substances.
5. 3 CHECKS
Before putting upright and/or table refrigerator into operation, it is necessary to carry out a series of checks to
prevent errors or accidents during the activating phase:
•Check that there has not been any damage to the upright and/or table refrigerator during assembly.
•Check with care the integrity of the control panel, the electric cable and the tubes.
•Check the precise connection to external energy supply.
•Check the free movement and rotation of any moving parts.
6. INSTALLATION
For an optimum functioning of the unit it is advisable to place the refrigerator in a zone with a
good ex change of air and far away from any sources of heat.

9
6. 1 SET UP
•Carefully remove the packaging from the refrigerator;
•Remove the white PVC protection film from the stainless steel and all the protection used by the company
to reduce the risk of damage during transport;
•Place the refrigerator on a flat level surface (use the adjustable feet). (Fig. 1)
Before use, clean the refrigerator with a clean, soft cloth or using a spray product. It is best to use little water
as it contains minerals which leave traces which are difficult to remove quickly.
•Wash the tray and all the internal parts using anti-bacterial detergents to be found commercially;
•Remove the detergent with a soft sponge soaked in water and dry with a clean soft cloth .
Do not use abrasive detergents or powders which could make the finish opaque.
During these phases do not, as already stated, use great quantities of water which could damage electric
parts; a damp sponge is sufficient.
•Place the shelf supports inside the refrigerator, in the most suitable position for use, inserting each
support in to the holes on the base of the refrigerator and inserting the side tab in the appropriate place
on the sides or on the table supports (Fig. 2)
•Slide the shelf into the supports as shown in (Fig. 2)
•Slide into the appropriate runners, on the lower part of the refrigerator, the condensation waste tray and
for appliances which have automatic trays, connect the connector. (Fig. 3)
vaschetta
guida reggi vaschetta
Fig. 1 Fig. 2 Fig. 3 (see 13.2.4.1)
6. 3 PREARANGEMENTS
•Check that the cables and the sockets are suitable for the power absorbed by the equipment.
THE USE OF ADAPTORS, MULTIPLE SOCKETS AND/OR EXTENSION LEADS IS FORBIDDEN
•Ensure that the upright and/or table refrigerator is not installed near to sources of heat like: ovens,
radiators, direct sunlight etc.
•Leave a space of at least 75 mm (3inches) between the back of the upright and/or table refrigerator and
any wall, to avoid the formation of condensation.
•The motor must be free of any obstacle which could hinder or limit the circulation through the condensing
unit situated on the top side part of the refrigerator.
•The distance between the refrigerator and the ceiling must not be less than 50 cm (19¾ inches).
•Check that the environment has a sufficient change of air, in order to guarantee the cooling of the
condenser and the compressor unit.
GUIDE
Evaporation
condensing
water tra
y

10
•For a perfect functioning of the equipment, the maximum temperature of the environment should not
exceed + 43°C (109°F), except for Compact Line, Eco Line and Eco Pizza which should not exceed 35°C
(95°F).
Lack of respect for these conditions will provoke a serious decline in the functioning of the equipment,
early ageing of the compressor and a much higher consumption of energy than normal (Fig. 4)
Fig. 4
C 2
CONSULT THE INFORMATION CONTAINED IN PARAGRAPH 1.5
6. 4 CONNECTION
To avoid any kind of problem when upright and/or tables are switched on is good to attend to the instruction as
follow.
6. 4. 1 ELECTRICAL
The electrical connection of the upright and/or table refrigerator is the Customer's responsibility.
The connection to the power supply must respect the power supply laws of the country in which the equipment
is installed. (see plaque A)
•Check that the tension of the power supply is exactly that shown on the plaque
(See Plaque A)
•Check that the socket conforms to power regulations.
•Pay particular attention that there are no uncovered wires.
•Check the earth.
THE EARTH CONNECTION IS A LEGAL SAFETY REQUIREMENT
(See Plaque C).
If more than one piece of equipment is placed in line, each one must have an independent power supply.

11
In order to safeguard the electric plant of the refrigerator from any overloads or short circuits, install a
magnetothermic switch at the head of the socket with adequate interruption power
(See Plaque D).
6. 4. 2 HYDRAULICS
If the model does not include a condenser unit, it is necessary to connect it to a drainage system for the
discharge of water from defrosting using a suitable tube of appropriate dimensions.
6. 4. 3 PREARRANGEMENTS FOR OPTIONALS
Locks: all the upright refrigerators are predisposed for the installation of locks, even those models which do not
include them. For assembly see Fig.5.
Fig. 5
7. OPERATION
7. 1 PERSONNEL
The staff who are to use and install the appliance, must possess (or acquire through adequate formation and
training) the following skills and must understand the contents of this manual and all the relevant Safety
Information:
•General technical knowledge enough o understand the contents of the Manual.
•Awareness of the main hygiene, accident prevention and technological regulations.
7. 2 PUTTING INTO OPERATION
If the equipment has been mistakenly positioned horizontally during transport, wait about 2 hours, after putting
it into a vertical position, before putting it into operation.
7.3 TIMERS
See enclosed Manual for Instructions and Use 13.2.1.2
7. 4 TEMPERATURE REGULATION
The choice of temperature must take into consideration:
•The type of product which is going to be kept in the cold storage room (see attached 13.2.5);
•The temperature of the environment;
•The frequency of opening.