Lotus CF4-8ET User manual

Translation of the original instructions
Installation and operating instructions
PROFESSIONAL COOKER WITH
OVEN
CF4-8ET CF4-8ETS CFC4-8ET CF4-8G CF4-8GEM CF4-8GEMS
Model LIBR.ISTR.CF4-8
Code 563002901
Review 1
Edition date 20/05/2019
Language English
LOTUS S.p.A.
Via Calmaor, 46
31020 San Vendemiano
[phone]
[phone]

Contents
Translation of the original instructions
2
Contents
1 INTRODUCTION......................................................................................................................... 5
1.1 Installation drawing...................................................................................................................... 5
1.2 Components................................................................................................................................. 6
2 GENERAL INFORMATION......................................................................................................... 14
2.1 Declaration of compliance............................................................................................................ 14
2.2 User information, RAEE Directive on waste electrical and electronic equipment ........................ 15
2.3 Technical data table..................................................................................................................... 15
3 INSTALLATION........................................................................................................................... 16
3.1 Delivery checks ............................................................................................................................ 16
3.2 Removing the packaging ............................................................................................................. 16
3.3 Mechanical installation ................................................................................................................. 16
3.4 Electrical/gas connections ........................................................................................................... 16
4 BURNERS TECHNICAL DATA TABLE (ITGB).......................................................................... 21
4.1 Burners technical data table ........................................................................................................ 21
5 INSTRUCTIONS FOR USE......................................................................................................... 22
5.1 General information ..................................................................................................................... 22
5.2 Lighting and adjusting the open rings.......................................................................................... 22
5.3 Starting the main burner and adjusting the temperature.............................................................. 22
5.4 Turning the appliance off.............................................................................................................. 22
5.5 Lighting and adjusting the open rings.......................................................................................... 22
5.6 Glass-ceramic cooker hob........................................................................................................... 23
5.7 Lighting and regulating gas oven burner...................................................................................... 24
5.8 Igniting the Grill burner................................................................................................................. 25
5.9 Oven lighting ............................................................................................................................... 25
5.10 Igniting and adjusting the static oven ........................................................................................... 25
5.11 Igniting and adjusting the multi-function electric oven ................................................................. 26
5.12 Cooking table for the fan oven ..................................................................................................... 28
5.13 Gas oven cooking table ............................................................................................................... 29
5.14 Gas grill cooking table.................................................................................................................. 30
5.15 Electric grill cooking table ............................................................................................................ 30
6 MAINTENANCE.......................................................................................................................... 31
6.1 Routine......................................................................................................................................... 31
6.2 Changing the open ring nozzles (fig. C)....................................................................................... 31
6.3 Substituting the nozzle in the oven burner ................................................................................... 31
6.4 Replacing the grill burner nozzle.................................................................................................. 32
6.5 Replacing the oven lamp ............................................................................................................. 32
6.6 Minimum setting ........................................................................................................................... 32

Contents
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6.7 Spare parts .................................................................................................................................. 33
7 CLEANING.................................................................................................................................. 34
7.1 Routine cleaning.......................................................................................................................... 34
7.2 Cleaning the glass ....................................................................................................................... 34

Contents
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4

INTRODUCTION
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5
1 INTRODUCTION
1.1 Installation drawing
FIG. 1 CF4-8..
A Data Plate
B Electrical connection
C Gas connection
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INTRODUCTION
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1.2 Components
FIG. B
1 Gas ring cover
2 Injector
3 Air adjustment
4 Knob
5 By-pass
6 Gas tap
7 Ramp
8 Ignition button
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INTRODUCTION
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FIG. C
Air adjustment
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FIG. E
1 By-pass

INTRODUCTION
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FIG. D
1 Ignition spark plug
2 Injector
3 Extends drainage
4 Air adjustment
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INTRODUCTION
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TOP WIRING DIAGRAM CF4-8ET...
1 Switch
2 White indicator light
3 Power supply terminal board
4 Heating element

INTRODUCTION
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TOP WIRING DIAGRAM CFC4-8ET
1 Power supply terminal board
2-3 Power regulator
4-5 Electrical plate
6 White indicator light
7 Residual heat indicator light

INTRODUCTION
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STATIC ELECTRIC OVEN WIRING DIAGRAM (D)
1 Switch
2 Oven lamp
3 Power supply terminal board
4 RS Upper resistor
4 RG Grill resistor
4 RI Lower resistor
5 White indicator light
6 Green indicator light
7 Timer
8 Thermostat

INTRODUCTION
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WIRING DIAGRAM MULTIFUNCTION ELECTRIC OVEN (E)
1 Switch
2 Oven lamp
3 Power supply terminal board
4 Motor fan
5 RS Upper resistor
5 RG Grill resistor
5 RI Lower resistor
5 RC Circular resistance
6 White indicator light
7 Green indicator light
8 Timer
9 Thermostat

INTRODUCTION
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TOP WIRING DIAGRAM
1 Power supply terminal board
2 Push-button starting burner
3-4 Burner ignition control unit
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STATIC GAS OVEN WIRING DIAGRAM
1 Switch
2 Oven lamp
3 Power supply terminal board

GENERAL INFORMATION
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2 GENERAL INFORMATION
2.1 Declaration of compliance
The manufacturer declares that the appliances comply with the requirements of the regulation GAR
2016/426 for the gas part and directive 2014/30/EU,2014/35/EU for the electrical part. Installation must be
performed in compliance with current regulations, especially with regard to ventilation of the premises and
the exhaust gas evacuation system.

·Read the warnings in this manual carefully. They provide important information about safe installation,
use and maintenance.
·The instruction manual must be kept for the entire duration of the equipment and made available to users
for every possible consultation. The manual should be consulted for any information concerning
installation, use and maintenance of the appliance.
·After removing the packaging, check the integrity of the equipment.
·All packaging materials (plastic bags, polystyrene, staples, etc.) must be disposed of in compliance with
current regulations.
·Before connecting the appliance, make sure that the information on the data plate matches the electricity
and gas mains where the appliance is installed. The manufacturer accepts no liability if the
equipment is not connected in accordance with current regulations.
·Always keep all parts of the equipment clean to avoid the risk of oxidation/rust and/or aggression by
chemical agents.
·The equipment must only be used by personnel trained for the purpose.
·The installation must be implemented by professionally qualified personnel in accordance with
the manufacturer's instructions and current reference standards.
·The electrical safety of this equipment is only ensured when it is correctly connected to an effective
ground/earth system as required by current electrical safety standards. The manufacturer cannot be held
liable for any damage caused if the system is not connected to ground/earth.
·Before carrying out any cleaning or maintenance tasks on the equipment, unplug it from the electricity
mains. In the event of faults or malfunctions, always deactivate the appliance.
·Repair work of any kind must only be performed by qualified personnel.
·This appliance must only be used for its expressly intended purpose for cooking or heating food. Any
other use is considered improper.
·The appliance is intended for professional use and must be used by trained personnel.
·The installation and possible transformation to another power supply voltage (if envisaged), or
transformation for operation with another type of gas, must be implemented exclusively by qualified and
authorised professional personnel.
·Before using the appliance, carefully clean all surfaces intended to come into contact with food.
·The manufacturer declines any and all liability for any direct or indirect damage resulting from improper
use of the equipment. The manufacturer declines any and all liability for damage caused by incorrect
installation, tampering, poor maintenance and unskilled use. Moreover, the manufacturer declines any
liability for possible inaccuracies that may be contained in this booklet attributable to errors in
transcription or printing and equally reserves the right to make any changes to the product it deems
useful and/or necessary without compromising its essential characteristics.
·The manufacturer cannot be held liable for any damage caused by failure to comply with these
basic standards and all other use and maintenance standards contained in this booklet.

GENERAL INFORMATION
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2.2 User information, RAEE Directive on waste electrical and
electronic equipment
With regard to the regulatory framework of reference of the European Community, we remind the user of the
following:

·Used AAE (Electrical and Electronic Equipment) products must be collected separately
·The user can carry out this collection in the RAEE collection systems and return the equipment to the
distributor when purchasing a new one
·Plus being RoHS compatible, (in accordance with Directive 2011/65/EU on the restriction of the use of
certain hazardous substances in electrical and electronic equipment) the potential effects on the
environment and human health may be due to the misuse of the same equipment or parts of it
·The symbol next to the rating plate indicates the obligation of separate collection
·The penalties provided for in the event of improper disposal of RAEE (Waste Electrical and Electronic
Equipment) are those provided for by the national transpositions of European Directives 2012/19/EU
2.3 Technical data table
Electrical technical data table CF8E S65G
MODEL DIMENSIONS POWER SUPPLY
MAXIMUM
ABSORPTION
(A)
OVEN LAMP (kW)
POWER SUPPLY
CABLE
silicon type
CF4-8ET 80x65x87 400V~3N 50/60 Hz 17,4 0,015 5 x 2,5 mm²
CF4-8ETS 80x65x87 400V~3N 50/60 Hz 17,4 0,015 5 x 2,5 mm²
CF4-8ET 80x65x87 230V~3 50/60 Hz 30,1 0,015 4 x 4 mm²
CF4-8ETS 80x65x87 230V~3 50/60 Hz 30,1 0,015 4 x 4 mm²
CFC4-8ET 80x65x87 400V~3N 50/60 Hz 18,7 0,015 5 x 2,5 mm²
CFC4-8ET 80x65x87 230V~3 50/60 Hz 32 0,015 4 x 4 mm²
CF4-8G 80x65x87 230V~ 50/60 Hz 0,06 0,015 3 x 1 mm²
CF4-8GEM 80x65x87 230V~ 50/60 Hz 13,3 0,015 3 x 1,5 mm²
CF4-8GEMS 80x65x87 230V~ 50/60 Hz 11,3 0,015 3 x 1 mm²
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Gas technical data table - CF8E S65G
MODEL DIMENSION
S
RATED BURNER CAPACITY (kW) RATED
TOTAL GAS
FLOW (kW)
GAS
FITTING ISO
7-1
3.5 kW 5.5 kW
Gas oven
GN1/14
kW
Grill
4 kW
CF4-8G 80x65x87 2 2 1 1 22 R 1/2GM
CF4-8GEM 80x65x87 2 2 / / 18 R 1/2GM
CF4-8GEMS 80x65x87 2 2 / / 18 R 1/2GM
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INSTALLATION
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3 INSTALLATION
3.1 Delivery checks
On delivery, it is important to check the following:

·External conditions of the packaging
·The general status of the equipment
·The conformity of the model with the information in the technical data plate and the instruction manual
·The conformity of the equipment and components to the order form
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3.2 Removing the packaging
While removing the packaging, take care not to damage the appliance. Remove the protective film from the
stainless steel and eliminate any traces of glue. Do not smoke. Perform this operation away from sources of
heat and wear protective gloves. Do not disperse packaging material in the environment, keep it out of the
reach of children and dispose in compliance with current legislation.

3.3 Mechanical installation
Place the appliance on a flat base. Adjust and stabilise the appliance by acting on the support feet. Make
sure that the surrounding walls and/or equipment are capable of withstanding the heat emitted by this
appliance. Connect the water supply (if necessary).

Caution

Do not install the appliance near equipment/machines used in cold processes. If the appliance
has to be installed close to cold process equipment, it is advisable to install non-combustible
thermal insulating material and/or neutral elements between them.

3.4 Electrical/gas connections
Before being offered for sale on the market, the appliance was subjected to gas and electrical testing (as
required). The appliance is supplied without a power cable. The installation technician must connect the
equipment in compliance with current safety regulations on the basis of the power of the appliance.
Note

The ID plate is located in the compartment inside the door for appliances with compartments, or on
the left side for appliances with an oven or a top. A second plate with the model and serial number is
located inside the dashboard and a third is included with the certificate of conformity. The serial
number can also be tracked from the sales document (after 2008). The plate has all the data needed
for correct electrical installation. The installation and possible conversion to another power supply
voltage (if envisaged) must be implemented exclusively by professionally qualified and authorized
personnel. Before using the appliance, carefully clean all surfaces intended to come into contact with
food.
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INSTALLATION
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Warning

Installation operations, any conversion to other types of gas and start-up must only be
performed by qualified personnel, in accordance with current regulations.

Gas systems, electrical connections and premises where the appliances are installed must comply with
current regulations in the country of installation; in particular, the appliance must be installed in a room with
good ventilation, if possible under a suction hood to ensure complete evacuation of the exhaust gases
formed during combustion. The air required for combustion is 2 m3/h per kW of installed power. The
appliance can be installed alone or in series with other appliances in our production range. A minimum
distance of 10 cm between appliances must be respected to prevent contact with any walls made of
flammable material; furthermore, appropriate measures should also be adopted to ensure the thermal
insulation of flammable parts, such as the installation of heat shields; take special care to ensure that
appliances are installed in an appropriate and safe manner. The support feet can be adjustable in height and
any unevenness can therefore be eliminated.
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ELECTRICAL CONNECTION
Caution

In accordance with international provisions, when connecting the appliance an automatic
device must be installed up-line of it so that the device can be fully disconnected from the
mains; this device must have a contact aperture of at least 3 mm.
The connection terminal is located behind the rear wall. Proceed as follows to install the power supply cable:

·Remove the rear panel.
·Pass the new connection cable through the cable gland, connect the leads to the corresponding terminal
on the terminal block and fasten them securely.
·Lock the cable with the cable gland and refit the panel. The earth/ground lead must be longer than the
others so that if the cable gland breaks it is disconnected after the power cables.

Note

Make sure that the mains voltage complies with the data on the appliance's ID plate and that there is
good conductivity to earth/ground. Pay attention when inserting leads to ensure they do not obstruct
the normal course of work and routine appliance cleaning operations. Also make sure that the power
cable is never pulled taut and is not placed in contact with sources of heat.
Note

The connection cable must have the following characteristics: it must be silicone type (to
withstand temperatures of 180 °C), and must have an appropriate cross-section for the power
of the appliance (see technical data table).
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EQUIPOTENTIAL

The appliance must be connected to an equipotential system. The connecting screw is located on the rear of
the appliance and is marked by the yellow symbol above it.
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Warning

The manufacturer is not liable for and does not indemnify damages caused by incorrect
inadequate installations that do not comply with these instructions.
GAS CONNECTION
The gas connection (see installation drawing) must be implemented using steel or copper pipes or steel
hoses, in compliance with applicable national standards. All appliances must be equipped with a gas shut-off

INSTALLATION
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valve and fast-closing valve. Once installation is complete, make sure that there are no gas leaks from the
fittings; to do this, do not use a naked flame but substances that do not cause corrosion, such as solutions of
soapy water or leak detectors. All our appliances are subjected to detailed examination: the type of gas,
pressure in use and the pertinent category are indicated on the data plate (see attachment).

Note

The year of construction of the appliance is indicated under "N" on the data plate. The first 2 digits
indicate the year of construction.

·THERMAL OUTPUT CONTROL

The appliances must be checked in order to verify that their thermal output is correct:

·Thermal output is indicated on the appliance's data plate;
·Firstly, make sure that appliance is set for the type of gas used and then make sure that the indication on
the data plate matches this gas. To adapt the appliance to another type of gas, make sure that the type of
gas in question complies with the information in this instruction manual.
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Warning

Pressure is measured with a pressure gauge (minimum resolution of 0.1 mbar) mounted on
the appropriate socket. Remove the M6 locking screw and insert the pressure gauge tube.
The test must be performed with all the burners on the appliance switched on and all the
appliances in the same line switched on. After taking the measurement, replace the screw,
firmly tighten and check the seal.

Liquid gas connection G30 / G31

The liquid gas connection pressure is 30 mbar for butane and 37 mbar for propane. Check the data plate,
measure the pressure and verify that the description of the nozzle installed matches the information provided
by the manufacturer.

Methane gas connection H G20

The methane gas connection pressure is 20 mbar. Check the data plate, measure the pressure and verify
that the description of the nozzle installed matches the information provided by the manufacturer.

·CHECKING THE PRIMARY AIR FOR MAIN BURNERS AND PILOT NOZZLE

For burners equipped with air adjustment, set the adjustable bushing and lock it with a screw. The "Burner
technical data" table shows approximate values for the "h" parameter (primary air). The primary air flow
volume must be adjusted to avoid a flame cut-off when the burner is cold and a flame blowback when the
burner is hot. The pilot air adjustment is set testing for the gas which the appliance will use. In the event of
conversion to other types of gas, adjust the air using the adjustment bush until the pilot flame is steady and
has an intense blue colour.

Disposition for conversion and installation for other types of gas:

Our appliances are tested and set for liquid gas or natural gas (see attached data plate). Conversion or
adaptation to another type of gas must be performed by a specialist technician. The nozzles for the various
types of gas are contained in a bag included in the supply and are marked in hundredths of mm (see
"Burners" technical data table).

·INSTRUCTIONS FOR EVACUATING EXHAUST GASES
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INSTALLATION
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- "A" type devices (see data plate)

"A" type appliances must discharge combustion products into appropriate hoods, or similar devices,
connected to an efficient fume stack or directly to the outside. (Natural evacuation) Fig. 1
If this is not possible, using an air suction device connected directly to the outside is permitted (Forced
Evacuation) Fig.2, having a flow capacity not lower than the value defined in point 4.3 of the UNI-CIG 8723
standard.

- In the case of forced evacuation

The gas supply to the appliance must be directly servo-controlled by the system and must stop if the flow
rate drops below the values indicated in point 4.3 of the UNI-CIG 8723 standard. Resetting the gas supply to
the appliance must be possible only by hand.
1 Extractor hood
2 Servo system

- "B11" type devices (See data plate)

Natural evacuation (fig.3)
Connection to an efficient natural draft fume stack by means of a windproof connection, with discharge of
combustion products directly to the outside

Forced evacuation (fig.4)
The gas supply to the appliance must be directly servo-controlled by the forced evacuation system and must
stop if the flow rate drops below the values indicated in point 4.3 of the UNI-CIG 8723 standard. Resetting
the gas supply to the appliance must be possible only by hand. If the installation is under a hood, the
terminal part of the appliance's exhaust pipe must be at least 1.8 meters from the appliance's support
surface (ground). The outlet section of the exhaust pipes for combustion products must be placed within the
perimeter in relation to the hood itself.



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INSTALLATION
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1 Windproof fume stack (fig.3) - Extractor hood (fig.4)
2 Servo system

"B11" type appliances are supplied on request with a hood or a hood and windproof fume stack to be
assembled and delivered separately.