Diamond FRU-511/N Service manual

Mod: FRU-511/N
Production code: A1 RRUA-105E JR 09DI 51
09/2014

CONVECTION
CONVECTION+HUMIDIFICATION
305/105/110/115
ANALOGIC
UK
REGENERATION OVENS
INSTRUCTIONS FOR THE INSTALLATION,
USE AND MAINTENANCE

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.
2
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

3
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
INDEX
0.0A Dimensions 5x2/3 GN
0.0B Dimensions 5x1/1 GN
0.0C Dimensions 10x1/1 GN
0.0D Dimensions 15x1/1 GN
0.0E Dimensions 5x2/3 GN + stand
0.0F Dimensions 5x1/1 GN + stand
0.0G Dimensions 10x1/1 GN + stand
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 + Humidication
4.2A Description control panel components Convection + Humidication
4.4 Starting the oven
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

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A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
5 x 2/3 GN
0.1A Dimensions mod. 5 x 2/3 GN
Model Dimensions Capacity Trays distance
5 x 2/3 GN
Electric cm 71 x 65 x h 58 5 x 2/3 GN 5 x 1/2 GN 67 mm

5
A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
5 x 1/1 GN
0.1B Dimensions mod. 5 x 1/1 GN
Model Dimensions Capacity Trays distance
5 x 1/1 GN
Electric cm 71 x 83 x h 58 5 x 1/1 GN 10 x 1/2 GN 67 mm

5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
6
10 x 1/1 GN
0.1C Dimensions mod. 10 x 1/1 GN
Model Dimensions Capacity Trays distance
10 x 1/1 GN
Electric cm 71 x 83 x h 91 10 x 1/1 GN 20 x 1/2 GN 67 mm
A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm

5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
7
15 x 1/1 GN
0.1D Dimensions mod. 15 x 1/1 GN
Model Dimensions Capacity Trays distance
15 x 1/1 GN
Electric cm 75 x 85 x h 156 15 x 1/1 GN 30 x 1/2 GN 67 mm
A- Electrical connection
B- Water inlet Ø 3/4”
C- Water drainage Ø 40 mm

5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
8
5 x 2/3 GN + SG-53R
0.1E Dimensions mod. 5 x 2/3 GN + stand
Model Dimensions Capacity Trays distance
5 x 2/3 GN
Electric cm 71 x 65 x h 130 5 x 2/3 GN 5 x 1/2 GN 67 mm

5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
9
5 x 1/1 GN + SG-51R
0.1F Dimensions mod. 5 x 1/1 GN + stand
Model Dimensions Capacity Trays distance
5 x 1/1 GN
Electric cm 71 x 83 x h 130 5 x 1/1 GN 15 x 1/2 GN 67 mm

10
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC
10 x 1/1 GN + SG-51R
0.1G Dimensions mod. 10 x 1/1 GN + stand
Model Dimensions Capacity Trays distance
10 x 1/1 GN
Electric cm 71 x 83 x h 163 10 x 1/1 GN 20 x 1/2 GN 67 mm

11
5 x 2/3 GN / 5-10-15 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
5 x 2/3 GN 3.4 kW
230 V ~ 50/60 Hz 1 x 250 W 3.2 kW 5.8 A 3 x 1.5 mm2
5 x 2/3 GN 5 kW
400 V+3N~50/60 Hz 1 x 250 W 4.8 kW 8.5 A 5 x 1.5 mm2
5 x 1/1 GN 6 kW
400 V+3N~50/60 Hz 1 x 250 W 5.8 kW 10.0 A 5 x 2.5 mm2
10 x 1/1 GN 12 kW
400 V+3N~50/60 Hz 2 x 250 W 11.6 kW 20.0 A 5 x 4.0 mm2
15 x 1/1 GN 16 kW
400 V+3N~50/60 Hz 3 x 250 W 14.7 kW 25.0 A 5 x 6.0 mm2

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2.0 INSTALLING THE APPLIANCE
Read this handbook through carefully as it provides important information to guarantee a safe installation,
use and maintenance.
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 appli-
ances are installed comply with
the relative installation and safety
standard.
Install the oven on aerated prem-
ises and level with the adjustable
feet, keeping at least 6 cm be-
tween 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.
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 2.0A.
Take the protective lm off the stainless steel parts
by hand before starting the appliance.
Do not use abrasive substances and/or metal ob-
jects.
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
stability, (Fig. 2.0A).
Fig. 2.0A
Fig. 2.0
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

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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 current 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 responsibility if this important
accident prevention norm is not complied with
2.2A-CHECKING MOTOR ROTATION DIRECTION
(only for three-phase motors).
Check that the fans’ rotation direction is the same as that of the arrow
on the stainless steel air-conveying panel, located inside the oven. If
they are rotating in the opposite direction, reverse two phases on the
supply terminal board.
Fig. 2.2A
Fig. 2.2
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

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 models, the solenoid valve (B)
supplies the steam generation in Combination cycle (Fig. 2.3A).
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.
2.3A TECNICAL DATA TABLE FOR THE WATER SYSTEM
Convection + Humidication
305
5 x 2/3 GN
105
5 x 1/1 GN
110
10 x 1/1 GN
115
15 x 1/1 GN
Humidication
water ow rate regulator Fig. 2.3A Ø 0.4 mm Ø 0.4 mm Ø 0.4 mm 2 x Ø 0.4 mm
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Fig. 2.3A
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

15
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 stainless 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 appro-
priate 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. 2.4 Fig. 2.4A
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

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 temperature 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.
3.1 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.
16
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

17
4.1 PROGRAMMING AND OPERATION MOD. CONVECTION
Convection forced hot air cycle
Select the cooking chamber temperature by turn-
ing the thermostat knob (A), and the desired time by
turning the timer-knob (C).
4.1A COMPONENTS DESCRIPTION PANNEL CONVECTION
ACooking chamber thermostat
CTimer
EPilot light timer ON
FPilot light oven power supply ON
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

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4.2 PROGRAMMING AND OPERATION MOD. CONVECTION + HUMIDIFICATION
(R) Regeneration without humidification
Two xed temperatures selectable: 120°C or 160°C
(R) Regeneration with humidification
Two xed temperatures selectable: 120°C or 160°C
(R+H) Regeneration without humidification
with maintenance phase
Two xed temperatures selectable: 120°C or 160°C
Automatic maintenance after regeneration at xed
temperature 50 °C
(R+H) Regeneration with humidification
with maintenance phase
Two xed temperatures selectable: 120°C or 160°C
Automatic maintenance after regeneration at xed
temperature 50 °C
(H) Maintenance of regenerated foods
Fixed temperature 50 °C
4.2A COMPONENTS DESCRIPTION PANNEL CONVECTION + HUMIDIFICATION
ACycle selector knob
BHumidity regulator
CTimer
EPilot light timer ON
FPilot light oven power supply ON
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC

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4.4 STARTING THE OVEN
Ensure that water supply are turned on and that the electricity supply is switched on.
Select the cooking time with the timer (C) that goes up to a maximum of 120 minutes; for longer cooking
times, select the (∞) nonstop position.
When the timer is on and the door is closed the cooking cycle starts together with the electric fan, heating
and steam generation, if selected.
When the set time is nished a buzzer signals that cooking is nished and all the functions stop.
When selecting the cooking time always remember the time needed to pre-heat the oven.
It ‘a good practice to observe this caution before introducing the food to be cooked in the oven.
4.6 TURNING THE OVEN OFF
The oven is turned off by turning the cycle selector knob round to position 0.
5 x 2/3 GN / 5-10-15 x 1/1 GN ANALOGIC