Beretta IDRA MS 150 LE User manual

Installation and Operation Manual
Solar | Solar storage cylinder
IDRA MS 150 LE
Installation and Operation Manual
EN

2
Dear Customer,
Thank you for choosing a Bsolar storage cylinder. You have purchased a modern, quality product that is designed to
give dependable and safe service and to provide comfort in the home for many years to come. Arrange for your Bso-
lar storage cylinder to be serviced regularly by an authorised Bservice centre. Their personnel are specially trained
to keep your solar storage cylinder efficient and cheap to run. Bservice centres also stock any original spare parts
that might be required.
This manual contains important instructions and precautions that must be observed to ensure the trouble-free installation
and efficient functioning of your Bsolar storage cylinder.
Please accept our renewed thanks for your purchase,
Beretta
Conformity
Bstorage cylinders conform to DIN 4753-3 and UNI EN 12897 standards.
CONFORMITY
b This product must only be used for the purpose for which it is designed and made, as specified by B. B
declines all responsibility, contractual or other, for damage to property or injury to persons or animals caused by
improper installation, adjustment, maintenance or use.
RANGE
MODEL CODE
IDRA MS 150 FI LE 20096928
ACCESSORIES
For a complete list of accessories and details of their compatibility, refer to the Catalogue.
ENGLISH

This manual, Code 20097037 - Rev. 2 (12/16) comprises 20 pages.
3
CONTENTS
The following symbols are used in this manual:
b
CAUTION! = Identifies actions that require caution
and adequate preparation.
a
STOP! = Identifies actions that you MUST NOT do.
This manual, Code
- Rev.
comprises
pages.
GENERAL ..................................4
1 General Safety Information .................. 4
2 Precautions .............................. 4
3 Description of the appliance................. 5
4 Identification ............................. 5
5 System layout ............................ 6
6 Technical specifications .................... 7
7 Water circuit ............................. 9
8 Location of sensors....................... 10
9 Overall dimensions and water fittings......... 11
INSTALLER ................................12
10 Unpacking the product .................... 12
11 Handling ............................... 12
12 Place of installation ....................... 13
13 Installation in older systems and systems requiring
modernisation ........................... 13
14 Preparing for initial startup ................. 13
TECHNICAL ASSISTANCE CENTRE ............14
15 Initial startup ............................ 14
16 Checks during and after initial start-up........ 15
17 Temporary shutdown...................... 16
18 Preparing for extended periods of disuse ..... 16
19 Maintenance ............................ 16
20 Cleaning and removing internal components... 17
22 Troubleshooting.......................... 17
21 Recycling and disposal ................... 17
END USER .................................18
23 Start-up ................................ 18
24 Temporary shutdown...................... 18
25 Preparing for extended periods of disuse ..... 18
26 External maintenance ..................... 18

4
GENERAL
1 GENERAL SAFETY INFORMATION
b Check that the product is complete, undamaged and
as ordered as soon as you receive it. Report any dis-
crepancies or damage to the Bdealer who sold
it.
b This product must be installed by a legally qualified
heating engineer. On completion of the installation,
the installer must issue the owner with a declaration
of conformity confirming that the installation has been
completed to the highest standards in compliance
with the instructions provided by Bin this instruc-
tion manual, and that it conforms to all applicable
laws and standards.
b This product must only be used for the purpose
for which it is designed and made, as specified by
B. Bdeclines all responsibility, contractual or
other, for damage to property or injury to persons or
animals caused by improper installation, adjustment,
maintenance or use.
b The product must be serviced at least once a year.
Servicing must be arranged in advance with the
BTechnical Assistance Centre.
b All servicing and repairs must be performed by a
qualified heating engineer.
b If water leaks from the storage cylinder, turn off the
water supply and contact B’s Technical Assis-
tance Centre or a qualified heating engineer imme-
diately.
b If the solar storage cylinder is not going to be used for
an extended period of time, contact the manufactur-
er’s Technical Assistance Centre to have at least the
following operations performed:
- Close the shut-off cocks for the domestic hot water
circuit
- Shut down the boiler connected to the storage cylin-
der as instructed in its own manual
- Switch the storage cylinder OFF at the control panel
(if fitted) and at the mains power switch
- Drain the central heating circuit and domestic hot
water circuit if there is any risk of freezing.
b Anti-freeze (propylene glycol) is available separately
and must be mixed with water in a percentage vary-
ing from 30% to 50% as instructed in the installation
and maintenance manual for the Bsolar collec-
tors.
b Only fill the solar collector (primary) circuit with water
and glycol premixed in the percentages specified in
the Binstallation and maintenance manual.
b This instruction manual is an integral part of the prod-
uct. It must be kept safe and must ALWAYS accom-
pany the product, even if it is sold to another owner or
transferred to another user or to another installation.
If you lose this manual, order a replacement imme-
diately.
2 PRECAUTIONS
The operation of any appliance that uses electrical power
demands that a number of fundamental safety precautions
be respected. In particular:
a Never attempt to install the system without using suit-
able personal protection equipment and without fol-
lowing all applicable occupational safety standards.
a Do not touch the storage cylinder when barefoot or
wet if it has any electrical accessories connected to
it.
a Never clean or service the storage cylinder without
first turning the mains power switch OFF to discon-
nect all electrical accessories (if fitted) from the mains
electricity supply.
a Never pull, disconnect, or twist any electrical cables
coming from the appliance even if it is disconnected
from the mains electricity supply.
a Do not expose the storage cylinder to the elements. It
is not designed for use outdoors.
a If the pressure in the solar collector circuit drops, do
not top up with water alone, since this increases the
risk of damage from freezing.
a Do not use connections or safety devices or fittings
(expansion vessels, pipes, insulation) that are not
specifically designed and tested for use in solar wa-
ter heating systems.
a Do not allow children or infirm persons to operate the
system unsupervised.
a Do not dispose of packaging material into the envi-
ronment, or leave it within the reach of children, since
it can become a potential hazard. Dispose of packag-
ing material in compliance with applicable legislation.
General

5
GENERAL
3 DESCRIPTION OF THE
APPLIANCE
B IDRA MS FI LE solar storage cylinders are designed
for installation in domestic hot water production systems
heated by Bsolar collectors.
The most important technical features of these solar stor-
age cylinders are:
- The storage cylinder and coil are specially designed
and shaped for optimum performance in terms of
stratification, heat exchange and replenishment times
- Internal glazing, bacteriologically inert, to ensure the
maximum hygiene of treated water, reduce limescale
deposits and make cleaning operations easier
- CFC-free polyurethane insulation and an elegant ex-
ternal casing reduce heat loss and improve efficiency
- Temperature sensor and power cables are all inter-
nally routed
- A flange is provided for easy cleaning and mainte-
nance of the anti-corrosion magnesium anode.
B IDRA MS FI LE storage cylinders are equipped with a
special solar controller and can easily be integrated in so-
lar heating systems in which Bboilers or water heaters
provide supplementary heat.
4 IDENTIFICATION
B IDRA MS FI LE storage cylinders are identified by:
Data plate
This lists the technical specifications and performance
of the product.
kW
m2
Matricola
Fabrication
Serial number
Modello
Modele
Model
Superficie serp. inf.
Surface serp. inférieur
Bottom coil heat exch. surf. area
Max pot. assorb. sup.
Puiss. absor. serp. sup.
Power abs. by top coil
Beretta Caldaie
Via Risorgimento, 13
23900 Lecco (LC)
BALLON SOLAIRE
Modele
Model
Fabrication
Code Année
bar
W
l
W
kW
l/1'
BOLLITORE SOLARE
ModelloMatricola
Codice Anno
m2
m2
T067764IFE
SOLARBOILER
Serial number
Code Year
Dispersioni secondo EN 12897
Déperditions selon EN 12897
Heat loss according to EN 12897
V-Hz
Alimentazione elettrica
Alimentat. élect.
Power supply
Potenza elettrica assorbita
Puissance élect. absorbée
Electrical consumption
Capacità del bollitore
Capacité ballon
Storage cylinder capacity
Press. esercizio max.
Pression service max.
Maximum working pressure of storage cylinder
Superficie serpentino inferiore
Surface serpentin inférieur
Bottom coil heat exchange surface area
Superficie serpentino superiore
Surface serpentin supérieur
Top coil heat exchange surface area
Massima potenza assorbita sup. [T° Primario 80°C]
Puissance absorbée serpentin sup. [T° Primaire 80°C]
Power absorbed by top coil [T° primary 80°C]
Collegamento di terra obbligatorio - Raccordement a la terre obligatoire
Obligatory ground connection
Beretta Caldaie
Via Risorgimento, 13
23900 Lecco (LC)
Produzione acqua calda sanitaria - serp. sup. [∆T 35°C]
Production eau chaude sanitaire - serp. sup. [∆T 35°C]
Domestic hot water production – top coil [∆T 35°C]
Serial number plate
This specifies the serial number and model.
b If these plates or any other means of clearly iden-
tifying the product are defaced, removed or lost,
proper installation and servicing may be rendered
difficult.

6
GENERAL
5 SYSTEM LAYOUT
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17 18
19
20
21
22
23
24
25
26
27
28
29
30
31
1 Magnesium anode
2 Storage cylinder
3 Temperature gauge
4 Sleeve for electric heating element (not supplied)
5 Cylinder inspection flange
6 Flange cover
7 Coil
8 Sensor socket
9 Insulation
10 Valve group
11 Cover
12 Plug for anode inspection and lifting
13 Outlet temperature gauge
14 Outlet valve M
15 Solar controller
16 Outlet pipe to coil
17 Return pipe from coil
18 Sensor/power cable entrance
19 Flow meter (l/min)
20 Flow regulator
21 Cock B
22 Pump
23 Pressure gauge
24 Cock A
25 Fitting for expansion vessel
26 Safety valve outlet
27 Safety valve (6 bar)
28 Return valve R
29 Fitting for pipe to solar collector
30 Return temperature gauge
31 Fitting for pipe from solar collector

7
GENERAL
6 TECHNICAL SPECIFICATIONS
DESCRIPTION IDRA MS 150 FI LE
Type of storage cylinder Vitrified
Storage cylinder layout Vertical
Heat exchanger layout Vertical
Storage cylinder capacity 150 l
Diameter of storage cylinder with insulation 605 mm
Height with insulation 1055 mm
Insulation thickness 50 mm
Diameter/length of first magnesium anode 33/450 mm
Flange diameter (external/internal) 183/130 - 120 mm
Diameter/length of sensor sockets 16/175 mm
Sleeve for electric heating element (not supplied) 1 1/2” F Ø
Coil water capacity 4,8 l
Coil heat exchange surface area 0,78 m2
NL performance factor (*) 1,7
Maximum working pressure of coils 10 bar
Maximum working pressure of storage cylinder 10 bar
Maximum operating temperature 99 °C
Net weight with insulation 72 kg
Heat loss according to EN 12897:2006 at ΔT=45 °C 96 W
Energy efficiency class D
DHW production
(∆T 35°C)
Primary coil at 80°C 585 l/h
Primary coil at 88°C 645 l/h
(*) NL performance factor calculated according to DIN 4708, with primary circuit at a temperature of 80-65°C and water
in storage cylinder at 65°C.
DESCRIPTION SOLAR VALVE GROUP TECHNICAL DATA
Power supply 230~50 V~Hz
Min/max electrical current draw 0,04 ÷ 0,57 A
Min/Max power consumption 2 ÷ 65 W

8
GENERAL
Pressure drops COIL
PRESSURE DROP (mbar)
20
15
10
5
0
0 200 400 600 800 1000
FLOW RATE (l/h)
Tests performed with a 30% glycol/water solution.
Residual head
Water outlet and return group
RESIDUAL HEAD (mbar)
800
700
600
500
400
300
0 200 400 600 800
FLOW RATE (l/h)
Tests performed with water at 20°C.
Flow regulator fully open.

9
GENERAL
7 WATER CIRCUIT
TYPICAL WATER SYSTEM SCHEMATIC
23
R
M
10 11
UAC
EAF
RL
SB
1 1
4
4
8
9
5
7
4
4
4 4
6
12 13
14
15
1 Solar collector
2 Solar storage cylinder
3 Collector probe
4 Disconnect valves
5 Non-return valve
6 Safety valve
7 Drain
8 Expansion vessel
9 Pump
10 Vent cock
11 Manual bleed valve (accessory)
12 Water softener filter
13 Pressure reducer
14 Mixer valve
15 CONTROL BOX SUN B solar controller
UAC Domestic hot water outlet
MC Outlet from boiler
RC Return to boiler
M Collector outlet
R Collector return
RL DHW circulation
EAF Domestic cold water inlet
SB Storage cylinder drain
Note! The above schematic is purely indicative.
b B
IDRA MS FI LE storage cylinders are delivered without a boiler heating pump. A suitably rated pump must
be provided and installed separately. Flow rate from the solar collector circuit depends on the type and number of
collectors installed. For further information, consult the manual for the collectors.
b The domestic hot water system MUST INCLUDE an expansion vessel, safety valve, automatic vent valve and stor-
age cylinder drain cock.
b Safety valves must be connected to a suitable collection and drain system. The manufacturer declines all responsi-
bility for damage caused by water escaping from safety valves.
b The choice of system components and the method of their installation are left up to the heating engineer installing
the system. Installers must use their expertise to ensure proper installation and functioning in conformity to all ap-
plicable legislation.
b Circuits filled with anti-freeze must be fitted with water disconnectors.

10
GENERAL
8 LOCATION OF SENSORS
B IDRA MS FI LE storage cylinders are equipped with dedicated sockets for the storage cylinder TEMPERATURE
GAUGE or TEMPERATURE SENSOR.
b
The installer is responsible for making all necessary connections to the boiler and solar collectors. Installers must use
their expertise to ensure proper installation and functioning in compliance with all applicable legislation.
Psr
B
A
C
A Temperature sensor socket
B Temperature sensor
C Guide
Psr Solar controller temperature sensor socket
b Joins between temperature sensor cables and control panel extension cables must be soldered and protected by
sheaths or other forms of electrical insulation.

11
GENERAL
9 OVERALL DIMENSIONS AND WATER FITTINGS
D
M R
RE
TR
AD AD
C
B
A
DSA
E
F
G H
I
(*)
L
UAC
Psr
EAF (SB)
RL
ICP
(*) Hoses
DESCRIPTION IDRA MS 150 FI LE
UAC Domestic hot water outlet 1” F Ø
M Outlet from solar collector 1” M Ø
R Return to solar collector 1” M Ø
RL DHW recirculation 3/4” F Ø
EAF (SB) Domestic cold water inlet (storage cylinder drain) 1” F Ø
Psr Diameter/length of solar controller sensor socket 16/175 mm
RE Sleeve for electric heating element (not supplied) 1 ½” F mm
AD Diameter/length of magnesium anode 33/450 mm
TR Temperature gauge
DSA Sensor/power cable entrance
ICP Rear cable entrance
A 800 mm
B 590 mm
C 335 mm
D 605 mm
E 825 Ø mm
F 170 mm
G 360 mm
H 250 mm
I 895 mm
L 1055 mm
b We recommend that you install isolating valves in the outlet and return lines.
b Check the efficiency of the seals when filling/refilling the storage cylinder.

12
INSTALLER
10 UNPACKING THE PRODUCT
B IDRA MS FI LE storage cylinders are delivered in a
single package, protected by a cardboard box on a wood-
en pallet.
The following items are delivered in a plastic bag inside the
packaging:
- Instruction manual
- Spare parts catalogue
- Hydraulic test certificate.
A
B
H
IDRA MS 150 FI LE
A 880 mm
B 1040 mm
H 1280 mm
11 HANDLING
Make sure that any lifting equipment is of adequate capac-
ity to lift and move the storage cylinder. Remove the brack-
ets (1) to free the storage cylinder.
To lift the storage cylinder, remove the plug (2) and insula-
tion (3) and screw an eyebolt (Ø 10 mm) of suitable capac-
ity for the weight of the cylinder into the hole (4).
1
1
1
2
4
3
If suitable equipment is not on hand to lift the storage cyl-
inder off the pallet using the eyebolt, proceed as follows.
- Place a platform of about half the height of the pallet
near the storage cylinder. Make sure the platform is
able to support the weight of the storage cylinder
- Remove the brackets (1) then carefully rotate and
slide the storage cylinder off the pallet on to the plat-
form
- Make sure that the storage cylinder is perfectly sta-
ble, and then remove the pallet
- Carefully rotate and slide the storage cylinder off the
platform on to the floor
- Remove the platform. Position the storage cylinder as
required.
Adjust the feet to ensure that the storage cylinder is per-
fectly level.
17
b Wear suitable personal protective equipment and use
suitable safety devices.
a Do not dispose of packaging material into the envi-
ronment, or leave it within the reach of children, since
it can become a potential hazard. Dispose of packag-
ing material in compliance with applicable legislation.
Installer

13
INSTALLER
12 PLACE OF INSTALLATION
B IDRA MS FI LE storage cylinders can be installed
in any room where there is no specific requirement for an
electrical protection rating higher than IP X0D.
b Respect the minimum specified installation distances
to ensure correct installation and access for mainte-
nance.
≥ 0,4 m
≥ 0,6 m
≥ 0,3 m ≥ 0,4 m
13 INSTALLATION IN OLDER
SYSTEMS AND SYSTEMS
REQUIRING MODERNISATION
When installing B IDRA MS FI LE storage cylinders in
old systems or systems requiring modernisation, always
perform the following checks.
- Make sure that the system is fitted with safety and
control devices in accordance with applicable legis-
lation and standards
- Make sure that the central heating circuit has been
flushed out to remove all sludge and lime scale, and
has been vented and seal tested
- Make sure that a suitable water treatment system is
installed if the quality of the supply/recirculation water
so demands (refer to the reference values listed in the
table alongside).
REFERENCE VALUES
pH 6-8
Electrical conductivity less than 200 μS/cm (25°C)
Chlorine ions less than 50 ppm
Sulphuric acid ions less than 50 ppm
Total iron less than 0.3 ppm
Alkalinity M less than 50 ppm
Total hardness less than 35°F
Sulphur ions none
Ammonia ions none
Silicon ions less than 30 ppm
14 PREPARING FOR INITIAL
STARTUP
- Connect the safety valve drain to a pipe (T) to avoid
burns from expelled fluid and to permit the heat trans-
fer fluid to be recovered
- Connect up an expansion vessel (E) designed for use
in solar water heating systems
- Connect the pump and the sensors to the solar con-
troller (if provided) as instructed in the manual sup-
plied with the controller.
SAFETY
DRAIN
T
E

14
TECHNICAL ASSISTANCE CENTRE
FLUSHING THE SYSTEM
- Turn the knobs of the outlet and return valves (M) and
(R) fully anti-clockwise
- Close the flow regulator (V) (so that the screw slot is
horizontal)
- Open the cocks (A) and (B) on the return valve group
- Flush water in through the cock (B) and wait for it to
come out of the cock (A)
- Close the cocks (A) and (B) and re-open the flow reg-
ulator (V) (so that the screw slot is vertical).
Return
group
Outlet
group RM
Pump
A
B
V
Graduated
scale in
l/min.
Flow
regulator V
position
CLOSED
position
OPEN
b If copper piping has been used and joints have been
hot brazed, flush out the system to remove any braz-
ing residues. Seal test the system after you have
flushed it out.
b Fill the solar collector with glycol/water mix immedi-
ately after flushing it out, because flushing water may
remain trapped in the circuit (with a consequent risk
of freezing).
ADJUSTING THE FLOW
Correct flow adjustment is essential to proper functioning
of the entire system.
Set the flow regulator (V) fully open (see figure above).
The pump is of the modulating type and is controlled by
the solar controller by means of a PWM signal. Refer to the
manual supplied with the solar controller to set the pump
flow rate range.
Make sure that the pump’s rated flow rate is suitable for the
number of solar collectors connected to the solar storage
cylinder.
PREMIXING WATER + GLYCOL
Glycol anti-freeze is supplied separately and must be pre-
mixed with water in a suitable container before being used
to fill the system. For example, a mix of 40% glycol and
60% water provides anti-freeze protection down to a tem-
perature of -21°C.
Anti-freeze Temperature Density
50% -32 °C 1,045 kg/dm3
40% -21 °C 1,037 kg/dm3
30% -13 °C 1,029 kg/dm3
b The propylene glycol supplied is specially formulat-
ed for solar collector applications and remains fully
efficient throughout the -32 to +180°C temperature
range. It is also non-toxic, biodegradable and bio-
compatible.
b Do NOT part fill the circuit with pure glycol then add
water later.
b Do not use automatic or manual filling systems.
b If the water supply is highly chlorinated, use distilled
water to prepare the glycol/water mix.
15 INITIAL STARTUP
FILLING THE SYSTEM
1 Turn the knobs of the outlet and return valves (M) and
(R) fully anti-clockwise.
Close the flow regulator (V) (so that the screw slot is
horizontal).
2 Open the manual bleed valve at the highest point in
the system and keep it open throughout the filling op-
eration.
3 Pump the heat transfer fluid around the circuit with an
external filling pump until all air bubbles have been
eliminated. Close the manual bleed valve and any vent
valves opened previously.
4 Temporarily raise the pressure in the system to 4 bar.
5 Start up the system for about 20 minutes.
6 Bleed the circuit again from step 2 until all the air has
been removed.
7 Set the pressure in the system to 3 bar.
8 Close the cocks (A) and (B) then use a 6 mm Allen key
to turn the flow regulator (V) anti-clockwise to open it.
a Do not fill the system in bright, sunny conditions or if
the collectors are hot.
TechnicalAssistanceCentre

15
TECHNICAL ASSISTANCE CENTRE
Upward
flow only
(non-return
valve function)
Position of the knob
of the valve R - M
90°
0°
90°
Flow stopped
0°
Anti-freeze mix
RM
Pump
Heat
transfer
fluid filling
pump
A
B
V
Outlet
group
Return
group
16 CHECKS DURING AND AFTER
INITIAL START-UP
Once the system has been started up, perform the follow-
ing checks.
- Check that the flow rate in the solar collector circuit is
equivalent to 30 l/h for each m2of collector area
- Check that the solar collector circuit has been prop-
erly bled
- Check that the pressure of the system when cold is
approximately 3 bar
- Check that the safety valve operates at 6 bar
- All the pipes in the water circuit have been insulated
in conformity to relevant standards.
1
2
3
4
5
06
Provided all the above checks have been completed suc-
cessfully, re-start the boiler and the storage cylinder and
check the temperature settings and domestic hot water
draw rate.

16
TECHNICAL ASSISTANCE CENTRE
17 TEMPORARY SHUTDOWN
If you are going away for a short period of time like a week-
end or a short holiday, etc., and outdoor temperatures are
going to remain above ZERO, proceed as follows.
- Adjust the storage cylinder thermostat to its minimum
setting.
b If outdoor temperature may drop below ZERO (risk
of freezing) perform the operations described in the
“Preparing for extended periods of disuse” section.
18 PREPARING FOR EXTENDED
PERIODS OF DISUSE
If the storage cylinder is not going to be used for an extend-
ed period of time, perform the following operations:
- Cover the solar collectors with suitable protection
- Switch the electricity supply to the storage cylinder’s
valve group and to any associated boiler OFF at the
main switch and at the control panel
- Close the shut-off cocks for the domestic hot water
circuit.
b Drain the domestic hot water circuit if there is any risk
of freezing.
Contact your local BTechnical Assistance Centre if you
encounter any problems in completing the above proce-
dure.
19 MAINTENANCE
Scheduled maintenance is essential for the safety, efficien-
cy and long working life of your storage cylinder. Proper
maintenance also reduces energy consumption and en-
sures reliability over time. Have your storage cylinder ser-
viced either by the manufacturer’s Technical Assistance
Centre or by a qualified heating engineer at least once a
year.
Perform the following operations before beginning any
maintenance:
- Switch the electricity supply to the storage cylinder’s
valve group and to any associated boiler OFF at the
main switch and at the control panel
- Close the shut-off cocks for the domestic hot water
circuit
- Drain the storage cylinder’s DHW (secondary) water
circuit.
REPLACING THE PUMP
Perform the following operations before starting work to re-
place the pump (C):
- Switch the electricity supply to the storage cylinder’s
valve group and to any associated boiler OFF at the
main switch and at the control panel
- Close the flow regulator (V)
- Turn the valve knob 90° clockwise to close the valve
(R)
- Unscrew the ring nuts (H1 and H2) and remove the
pump (C).
Reverse the above steps to fit the new pump.
V
C
R
H1
H2
MReturn
group
Outlet
group

17
TECHNICAL ASSISTANCE CENTRE
20 CLEANING AND REMOVING
INTERNAL COMPONENTS
EXTERNAL CLEANING
Clean the outside of the storage cylinder with a soft cloth
damped in soapy water. To remove stubborn marks, use a
cloth damped in a 50% mix of water and denatured alco-
hol or a suitable cleaning product. Dry the storage cylinder
after cleaning it.
a Do not use abrasive products, petrol or triethylene.
INTERNAL CLEANING
Removing and checking the magnesium anode
- Remove the plug (1) and insulation (2), and use a
suitable wrench to unscrew the anode holder (3)
- Check the magnesium anode for wear and replace it
if necessary.
On completion of cleaning, follow the above steps in the
reverse order to refit all removed parts.
NOTE: Tighten the anode plug to a torque of 25-30 Nm.
1
2
3
Cleaning inside the storage cylinder
- Remove the screws (4)
- Remove the flange cover (5)
- Remove the insulation (6)
- Unscrew the bolts (7) and remove the cover (8)
- Remove the seal (9)
- Clean inside the storage cylinder and remove any
residues through the access hole.
b Check the seal for wear and replace it if necessary.
On completion of cleaning, follow the above steps in the
reverse order to refit all removed parts.
b Tighten the bolts (7), proceeding diagonally around
the flange to apply pressure uniformly around the
seal.
- Fill the storage cylinder’s DHW (secondary circuit)
and check that there are no leaks from any of the
seals
- Check the performance of the storage cylinder.
9
8
7
6
5
4
21 RECYCLING AND DISPOSAL
At the end of its useful working life, do not abandon the
storage cylinder in the environment, but dispose of it
through the proper channels in accordance with applica-
ble legislation.
22 TROUBLESHOOTING
FAULT CAUSE SOLUTION
The storage cylinder functions
incorrectly or irregularly
There is air in the circuit - Bleed the circuit
The flow rate is too low or too high - Check the flow rate of the collector
circuit
Pressure is too low - Check that circuit pressure is approx-
imately 3 bar when cold
There is lime scale or sludge in the
cylinder - Check and clean as necessary
Solar controller malfunction - Solar controller malfunction
The storage cylinder loses a lot of
heat overnight
There is natural circulation to the
collectors
- Make sure that the non-return valve
is efficient and closes properly. Re-
place if necessary

18
END USER
END USER INSTRUCTIONS
Refer to the GENERAL SAFETY INFORMATION and PRECAUTIONS section for safety-related information.
23 START-UP
The storage cylinder must be put into service for the first
time by personnel from the manufacturer’s Technical Assis-
tance Centre.
Under certain circumstances, such as after long periods of
disuse, the user may need to re-start it without involving the
Technical Assistance Centre. Before doing so, perform the
following checks and operations.
- Check that the supply cocks in the domestic water
circuit are all open
- Switch the electricity supply ON at the mains power
switch and at control panel switch (if fitted).
24 TEMPORARY SHUTDOWN
To reduce impact on the environment and save energy,
before leaving for the weekend or a short break, etc., pro-
vided outdoor temperatures will remain above ZERO, sim-
ply adjust the storage cylinder’s thermostat to its minimum
temperature.
b If outdoor temperature may drop below ZERO (risk
of freezing) perform the operations described in the
“Preparing for extended periods of disuse” section.
25 PREPARING FOR EXTENDED
PERIODS OF DISUSE
If the storage cylinder is not going to be used for an extend-
ed period of time, ask the manufacturer’s Technical Assis-
tance Centre to make the system safe.
26 EXTERNAL MAINTENANCE
Clean the cover, painted and plastic parts with a cloth
damped in soap and water. To remove stubborn marks,
use a cloth damped in a 50% mix of water and denatured
alcohol or a suitable cleaning product.
b Do not use fuels, sponges impregnated with abrasive
solutions or powder detergents.
Enduser

19
END USER

20097037 - Rev. 2 (12/16)
Commercial Ofces: Via Risorgimento, 23 A
23900 - Lecco
www.berettaboilers.com
Beretta reserves the right to modify the characteristics and
specications given in this publication at any time and without prior
notice as part of its policy of continuous product improvement.
This publication cannot therefore be understood as a contract with
third parties.