Diamond DFV-423/S User manual

Mod: DFV-423/S
Production code: SDA-304E
02/2014

CONVECTION
CONVECTION+HUMIDIFICATION
COMBI DIRECT
304/104/107
ANALOGIC
UK
CONVECTION - STEAM OVEN
INSTRUCTIONS FOR THE INSTALLATION,
USE AND MAINTENANCE

4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
WARNING !
Before making any type of connection of this equipment (electrical or
hydraulic), carefully read the instructions in this manual.
The installation must be carried out only by qualied technical
personnel.
FOREWORD
The contents of this manual are generic and not all the functions described may be available on
your product.
The manufacturer declines all responsibility for possible inaccuracies contained in this pamphlet, due to
printing or copy errors. We reserve the right to make on our own products those changes to be considered
necessary or useful, without jeopardizing the essential characteristics.
Read the instructions for use very carefully paying particular attention to the rules concerning safety de-
vices. This appliance must only be used for what it has been designed for and built for and that is: all baking
of dishes and regenerating pre-cooked and/or frozen food.
26

27
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
INDEX
0.0A Dimensions 4 x 2/3 GN
0.0B Dimensions 4 x 1/1 GN
0.0C Dimensions 7 x 1/1 GN
Supports dimensions
INSTALLATION
1.0 Declaration of Conformity
1.1 European Directive ROHS 2011/65/UE
1.6 Technical data for electrical connection
2.0 Installing the appliance
2.2 Electrical connection
2.3 Hydraulic connection – water inlet
2.3A Technical data table water connection
2.4 Hydraulic connection- water drainage
3.0 Control and safety devices
3.1 Spare parts replacing
3.2 Checking the functions
USE AND MAINTENANCE
4.1 Programming and operation mod. Convection
4.1A Description control panel components Convection
4.2 Programming and operation mod. Convection + Manual Humidication
4.2A Description control panel components Convection + Manual Humidication
4.3 Programming and operation mod. Combi Direct
4.3A Description control panel components Combi Direct
4.4 Starting the oven
4.5 Auxiliary commands and controls
4.6 Turning the oven off
9.0 Maintenance
9.1 What to do in the case of a breakdown and/or extended period of non use
10.0 Cooking tips
10.1 Remedies to cooking hitches

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4 x 2/3 GN
0.1A Dimensions mod. 4 x 2/3 GN
Model Dimensions Capacity Trays distance
4 x 2/3 GN
Electric cm 60 x 70 x h 48 4 x 2/3 GN 4 x 1/2 GN 67 mm
A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm
D- Cooking chamber relief valve Ø 60 mm
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

29
4 x 1/1 GN
0.1B Dimensions mod. 4 x 1/1 GN
Model Dimensions Capacity Trays distance
4 x 1/1 GN
Electric cm 60 x 88 x h 48 4 x 1/1 GN 8 x 1/2 GN 67 mm
A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm
D- Cooking chamber relief valve Ø 60 mm
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

30
7 x 1/1 GN
0.1C Dimensions mod. 7 x 1/1 GN
Model Dimensions Capacity Trays distance
7 x 1/1 GN
Electric cm 60 x 88 x h 70 7 x 1/1 GN 14 x 1/2 GN 67 mm
A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm
D- Cooking chamber relief valve Ø 60 mm
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

31
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
Stand with tray-slides
for mod. 0.1A (4 x 2/3 GN)
Stand with tray-slides
for mod. 0.1B (4 x 1/1 GN)
and mod. 0.1C (7 x 1/1 GN)

32
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

INSTALLATION
1.0 DECLARATION OF CONFORMITY
The Manufacturer declares that the appliances conform to the EEC norms.
They must be installed in accordance with current standards, especially regarding aeration of the prem-
ises and the exhaust gas evacuation system.
Note: The Manufacturer declines all and every responsibility for any direct damages caused by: an
incorrect use, wrong installation or bad maintenance.
1.1 EUROPEAN DIRECTIVE ROHS 2011/65/UE
This appliance is marked according to the European directive 2011/65/UE on Waste Electrical and Elec-
tronic Equipment (WEEE). By ensuring this product is disposed correctly, you will help prevent potential
negative consequences for the environment and human health, which could otherwise be caused by inap-
propriate waste handling of this product.
The symbol on the product, or on the documents accompanying the product, indi-
cates that this appliance may not be treated as household waste.
Instead it shall be handed over to the applicable collection point for the recycling of
electrical and electronic equipment.
Disposal must be carried out in accordance with local environmental regulations for
waste disposal.
1.6 TECHNICAL DATA FOR ELECTRICAL CONNECTION
Model Power loading
and voltage
no. and motor
power
Heating
power
Absorbed
current
Feed cable
section
4 x 2/3 GN 3.0 kW
230V+ 1 ~ 50/60 Hz 1 x 250 W 2.6 kW 5.0 A 3 x 1.5 mm2
4 x 2/3 GN 4.3 kW
400 V+3N~50/60 Hz 1 x 250 W 3.9 kW 7.5 A 5 x 1.5 mm2
4 x 1/1 GN 5.2 kW
400 V+3N~50/60 Hz 1 x 250 W 4.9 kW 8.5 A 5 x 1.5 mm2
7 x 1/1 GN 7.5 kW
400 V+3N~50/60 Hz 1 x 250 W 7.2 kW 12.5 A 5 x 2.5 mm2
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4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

34
2.0 INSTALLING THE APPLIANCE
The appliance must be installed only and exclusively by qualied personnel following the instructions
given herein and in compliance with current laws in force.
The water, electricity and the premises on which the appliances are installed comply with the relative
installation and safety standard.
Maintain the minimum distances between the oven walls, (rear and right side) and either the brick walls or
the other appliances, as illustrated in gure 2.0.
Install the oven on aerated premises and level with the adjustable feet, keeping at least 6cm between the
bottom of the oven and the supporting surface on which the feet stand.
Install the appliance in a position that allows access to the right side for installation, maintenance and
technical assistance.
If the oven is placed on its supports, supplied by us
on request, make sure the centre hole of the feet
snap on to the support pin which will guarantee sta-
bility, (Fig. 2.0A).
Take the protective lm off the stainless steel parts
by hand before starting the appliance. Do not use
abrasive substances and/or metal objects.
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
Fig. 2.0
Fig. 2.0A

35
2.2 ELECTRICAL CONNECTION
When the appliance is delivered it is set to work at the voltage given on the rating plate afxed on the right
side of the appliance.
The terminal board used for connecting can be accessed from the right of the appliance, removing the
side panel.
Before connecting the cable, remove the steel protection
xed to the ovens base with its specic screws, (see Fig.
2.2A) insert the cable in the clamp-connector and then in
the terminal board zone, passing through the hole with the
gasket near the terminal board.
Once the electric connection has been carried out, reas-
semble the steel protection previously removed.
The specications of the exible cable for the electrical con-
nection should be no lower than those of the type with rub-
ber insulation H07 RN-F, with the cross section of the wires
as given in the technical data.
Install a circuit breaker of a suitable capacity upstream from
the appliance, making sure it has an opening between the
contacts of at least 3 mm.
It is essential to connect the appliance to an effective earthing system; (Fig. 2.2) for this purpose the rela-
tive terminal with the symbol to which the earth wire is to be connected is on the terminal board.
The effectiveness of the equipotential system of
which the appliance is part of, must conform to cur-
rent standards. Connect using the screw you nd
near the power cable’s relief cable strain, marked
with the word EQUIPOTENTIAL.
The Manufacturer declines all and every respon-
sibility if this important accident prevention norm
is not complied with.
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
Fig. 2.2
Fig. 2.2A

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2.3 HYDRAULIC CONNECTION – WATER INLET
The ovens have a water inlet coupling at the back. Always install an on-off valve between the appliance
and the water mains, making sure it is easy to operate.
We also suggest installing a cartridge lter on the water inlet pipe.
Always connect to the cold water.
In Convection + Humidication and Combi Direct models, the
solenoid valve (A) supplies the steam generation in Combina-
tion and Steam cycles (Fig. 2.3).
The water must be suitable to human use with the follow-
ing characteristics:
Temperature: included between 15 – 20°C
Total hardness: included between 4 and 8 °f (French de-
grees), it is advisable to install a softener upstream from the
appliance that will maintain the hardness level at the mentioned
values.
The oven’s running with water that has a higher hardness level will not be long before scale forms
on the walls of the oven and in this case the technical assistance required to repair such damage
is not covered by the guarantee.
Pressure: included between 100 and 200 KPa (1 – 2 bar).
Attention higher water pressure values result in increased water consumption and can compromise the
correct functioning of some components.
Maximum chloride concentration (Cl-): less than 150 mg/litre.
Chlorine concentration (Cl2): less than 0.2 mg/litre.
pH: more than 7.
Water conductivity: included between 50 and 2000 µS/cm.
Attention: Water treatment systems that bring to different values to the ones above mentioned automati-
cally invalidate the guarantee.
The use of dosing systems designed to prevent the build-up of lime-scale in pipes (i.e. polyphosphate
dosing systems) is also prohibited since it may impair the performance of the appliance.
Fig. 2.3
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

37
2.3A TECNICAL DATA TABLE FOR THE WATER SYSTEM
Convection + Humidication
304
4 x 2/3 GN
104
4 x 1/1 GN
107
7 x 1/1 GN
Condensation ow rate regulator
Optional - Fig. 3.0G Ø 0.7 mm Ø 0.7 mm Ø 0.7 mm
Combined cycle water ow rate regulator.
Fig. 2.3 Ø 0.4 mm Ø 0.4 mm Ø 0.5 mm
Combi direct
304
4 x 2/3 GN
104
4 x 1/1 GN
107
7 x 1/1 GN
Condensation ow rate regulator
Fig. 3.0G Ø 0.7 mm Ø 0.7 mm Ø 0.7 mm
Combined and Steam cycles water ow rate
regulator. Fig. 2.3 Ø 0.4 mm Ø 0.4 mm Ø 0.5 mm
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

38
2.4 PLUMBING – WATER DRAINAGE
Drainage for the water is at the back of the oven and
must be connected directly to the end of the stain-
less steel drainpipe.
The drain must have no trap and be made in rigid
pipes that can withstand a temperature of 110°C.
Under no circumstances must pipe diameter be
reduced. The actual pipe should be at atmospheric
pressure with the appropriate funnel type air intake.
If the drainpipe is clogged for any reason steam can
escape from the door and bad smells can be created
inside in the oven.
Important: The drain system must be installed so
that any vapours coming from the open drain do not
enter the aeration vents under the appliance. (Fig.
2.4 and 2.4A).
Fig. 2.4A
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
Fig. 2.4

3.0 CONTROL AND SAFETY DEVICES
The ovens are equipped with a set of control and safety devices for the electric and hydraulic circuits.
3.0A 2A fuse: it is in the auxiliary circuit to protect
against short circuiting of the electrical system and is
inside its own support on the contactor’s xing bracket.
3.0D Motor overload protection: a thermal probe
disengages the motor when, for various reasons, there
is an overload.
When the overload protection triggers it stops the motor
and also disconnects the heating elements or the gas
valve.
The probe is reset automatically when motor tempera-
ture drops.
3.0E Oven safety thermostat: disconnects the heating element or the gas valve when anomalies re-
lated to overheating occur. Subsequent re-set will have to be done manually when causes for thermostat
operation have been determined.
3.0F Door micro switch: it stops the oven working when the door is opened.
3.0G Thermostat system for condensation of discharge
steam: (optional in convection + humidication models): it
comprises a solenoid valve controlled by a thermostat whose
sensor is housed in contact with the discharge.
The solenoid valve, via the injector (G), lets cold water into
the drainpipe to condense the steam when a temperature of
90°C is reached (Fig. 3.0G).
3.0H Oven relief valve: its job is to adjust humidity inside
the cooking chamber.
The valve is manually activated acting on the knob (A)
(Fig.3.0H) on top of the door.
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Fig. 3.0H
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
Fig. 3.0G

40
3.1 REPLACING SPARE PARTS
Before starting to replace spare parts make sure, for safety reasons, that the electricity main switch is off
and that the water on-off valve is closed.
3.2 CHECKING THE FUNCTIONS
Start the appliance following the “USER MANUAL”.
Test the water pipes for leaks.
It is essential to explain to the user exactly how the appliance works and to supply him with the instruction
handbook that he must follow when using the oven.
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC

41
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
USE AND MAINTENANCE
For a correct comprehension of the terminology used in the following paragraphs, we underline that coo-
king phase is the period of time in which the oven carries out one of the following cooking modes:
Convection hot forced air
(temperature range between 50 - 270°C)
Combination hot forced air and steam
(temperature range between 50 - 270°C)
Steam
(temperature range between 50 - 100°C)

42
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
4.1 PROGRAMMING AND OPERATION MOD. CONVECTION
Convection forced hot air cycle
(temperature range between 60-270°C)
Turn the cycle selector knob (A) to the symbol shown on
the left and select the cooking temperature using ther-
mostat knob (B).
Cooling down cycle
Open the door and turn the cycle selector knob (A) to the
symbol shown on the left.
This cycle allows the motor fan to work with open door,
and to cool down quickly the cooking chamber.
4.1A CONTROL PANEL COMPONENTS DESCRIPTION
BCooking chamber thermostat
CTimer
EPilot light timer ON
FPilot light cooking chamber heating ON
4.2 PROGRAMMING AND OPERATION MOD. CONVECTION + HUMIDIFICATION
Convection forced hot air cycle
(temperature range between 60-270°C)
Turn the cycle selector knob (A) to the symbol shown on
the left and select the cooking temperature using ther-
mostat knob (B).
Manual Humidication
By pressing this key the manual humidication is started.
Steam generation is on, while you keep pressed the key
and it’s conrmed by the lighting of the same key.
Cooling down cycle
Open the door and turn the cycle selector knob (A) to the
symbol shown on the left.
This cycle allows the motor fan to work with open door,
and to cool down quickly the cooking chamber.
4.2A CONTROL PANEL COMPONENTS DESCRIPTION
BCooking chamber thermostat
CTimer
EPilot light timer ON
GPilot light cooking chamber heating ON
HManual humidication push button

43
4 x 2/3 GN / 4 - 7 x 1/1 GN ANALOGIC
4.3 PROGRAMMING AND OPERATION MOD. COMBI DIRECT
Convection forced hot air cycle
(temperature range between 50-270°C)
Turn the cycle selector knob (A) to the symbol shown
on the left and select the cooking temperature using
thermostat knob (B).
Steam cycle
(temperature range between 50-100°C)
Turn the cycle selector knob (A) to the symbol shown
on the left and select the cooking temperature using
the thermostat knob (B).
Important: the max. allowed temperature will be
100°C, even if the thermostat knob will be positioned
on higher values.
Combination cycle, hot air and steam
(temperature range between 50-270°C)
Turn the cycle selector knob (A) to one of the seven
adjustment positions among the symbols shown on
the left (with steam ow from a minimum to a maxi-
mum) and select the cooking temperature using
thermostat knob (B).
The selector knob (A) allows a progressive regula-
tion for humitidy adjustment.
Cooling down cycle
Open the door and turn the cycle selector knob (A)
to the symbol shown on the left.
This cycle allows the motor fan to work with open
door, and to cool down quickly the cooking chamber.
4.3A COMPONENTS DESCRIPTION PANNEL COMBI DIRECT
ACycle selector-switch
BCooking chamber thermostat
CTimer
ETimer ON pilot light
FOven power supply ON pilot light
GHeating cooking chamber ON pilot light