Beretta IDRA DS 200 User manual

solar
storage
cylinder
idra ds
installation ManUal
User ManUal
solar

2
range
MODEL CODE
BERETTA IDRA DS 200 20001224
BERETTA IDRA DS 300 20001225
BERETTA IDRA DS 430 20001226
BERETTA IDRA DS 550 20001227
BERETTA IDRA DS 750 20009144
BERETTA IDRA DS 1000 20009145
ACCESSORIES
For a complete list of accessories and details of their com-
patibility, refer to the Catalogue.
ENGLISH
Dear Customer,
Thank you for choosing a Bsolar storage cylinder. You
have purchased a modern, quality product that is desi-
gned to give dependable and safe service and to provide
comfort in the home for many years to come. Arrange for
your Bsolar storage cylinder to be serviced regularly
by an authorised Bservice centre. Their personnel are
specially trained to keep your solar storage cylinder effi-
cient and cheap to run. Bservice centres also stock
any original spare parts that might be required.
This manual contains important instructions and precau-
tions that must be observed to ensure the trouble-free in-
stallation and efficient functioning of your Bsolar sto-
rage cylinder.
Please accept our renewed thanks for your purchase.
Beretta
Conformity
Bstorage cylinders conform to DIN 4753-3 and UNI
EN 12897 standards.
This product must only be used for the purpose for which
it is designed and made, as specified by B. Bde-
clines all responsibility, contractual or other, for damage to
property or injury to persons or animals caused by impro-
per installation, adjustment, maintenance or use.
conforMity

This manual, Code 20013693 - Rev. 10 (04/13) comprises 24 pages.
3
Contents
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 .............................. 5
6 Technical specifications ...................... 6
7 Water circuit ............................... 8
8 Location of sensors ......................... 9
9 Overall dimensions and water fittings........... 10
installer .............................13
10 Unpacking the product...................... 13
11 Handling ................................. 14
12 Place of installation......................... 16
13 Installation in older systems and systems requiring
modernisation ............................. 16
tecHnical assistance centre .........17
14 Putting into service ......................... 17
15 Temporary shutdown ....................... 17
16 Preparing for extended periods of disuse ....... 17
17 Maintenance .............................. 18
18 Cleaning and removing internal components..... 18
19 Recycling and disposal ..................... 20
20 Troubleshooting ........................... 20
end User..............................21
21 Start-up .................................. 21
22 Temporary shutdown ....................... 21
23 Preparing for extended periods of disuse ....... 21
24 External maintenance ....................... 21

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 di-
screpancies 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 in-
struction manual, and that it conforms to all appli-
cable 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 Assistan-
ce Centre or a qualified heating engineer immedia-
tely.
b If the storage cylinder is not going to be used for an
extended period of time, contact B’s Technical
Assistance Centre to have at least the following ope-
rations 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 This instruction manual is an integral part of the pro-
duct. 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 sui-
table 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 packa-
ging material in compliance with applicable legisla-
tion.
General

5
GENERAL
3 descriPtion of tHe
aPPliance
B IDRA DS solar storage cylinders are double coil units,
specifically designed for installation in domestic hot water
production systems heated by solar collectors. They are
available in six models from 200 to 1000.
The most important technical features of these solar stora-
ge cylinders are:
- The cylinder and coils are specially designed and sha-
ped for optimum performance in terms of stratification,
heat exchange and replenishment times.
- The double vitrified cylinder lining is bacteriologically
inert for maximum hygiene, reduced lime scale deposits
and easy cleaning.
- CFC-free polyurethane insulation and an elegant external
casing reduce heat loss.
- Temperature sensor and power cables are all internally
routed (models 200 to 550).
- A flange is provided for easy cleaning and maintenance
of the anti-corrosion magnesium anode (double on mo-
dels 750 and 1000).
B IDRA DS storage cylinders can be connected to a
special solar regulator and can be integrated in solar hea-
ting systems in which Bboilers or water heaters provi-
de supplementary heat.
4 identification
B IDRA DS storage cylinders are identified by:
Data plate
This lists the technical specifications and performance
of the product.
SOLARBOILER
Modell Herstell. Nr.
Artikel Nr. Baujahr
Maximaler Boilerbetriebsdruck
Anschlussspannung
bar
V-Hz
Boilerfassungvermögen
l
T067659ED02
ERDUNG OBLIGATORISCH - OBLIGATORY GROUND CONNECTION
W
Elektrischer Leistung
m
2
m
2
Leistungsaufnahme obere Rohrschlange
kW
Erzeugung von Brauchwasser
l/1'
[Primärkreislauftemperatur T=80°C]
SOLAR STORAGE CYLINDER
Model Serial number
CodeYear
Power absorbed by top coil (T° primary 80°C)
Domestic Hot Water production - top coil
Maximum working pressure of storage cylinder
Storage cylinder capacity
Electrical consumption
Power supply
obere Rohrschlange[ 35°C]
∆T
Austauschoberfläche obere Rohrschlange
Top coil heat exchange surface area
Austauschoberfläche untere Rohrschlange
Bottom coil heat exchange surface area
Austauschoberfläche untere
Rohrschlange
Bottom coil heat exch. surf. area
Serial number
Model
kW
Power absorbed by top coil
Herstell. Nr.
Leistungsaufnahme obere
Rohrschlange
Modell
m
2
Beretta Caldaie
Via Risorgimento,
1323900 Lecco (LC)
Beretta Caldaie
Via Risorgimento,
1323900 Lecco (LC)
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.
5 systeM layoUt
8
5
2
10
9
6
11
7
1
(*)
3
4
1 Storage cylinder
2 Boiler temperature sensor socket
3 Auxiliary temperature sensor socket
4 Solar controller temperature sensor socket
5 Cylinder inspection flange
6 Bottom coil
7 Top coil
8 First magnesium anode
9 Second magnesium anode (for models 750 and 1000)
10 Top flange (models 750 and 1000 only)
11 Sleeve for electric heating element (not supplied)
(*) On models 750 and 1000, this fitting can be used as an
alternative installation position for the first magnesium
anode (in installations where height is limited).

6
GENERAL
6 tecHnical sPecifications
DESCRIPTION
IDRA DS
200 300 430 550 750 1000
Type of storage cylinder Vitrified
Storage cylinder layout Vertical
Heat exchanger layout Vertical
Storage cylinder capacity 203 298 433 546 716 875 l
Diameter of storage cylinder with insulation 605 755 1000 mm
Diameter of storage cylinder without insulation 500 650 790 mm
Height with insulation 1330 1840 1630 1980 1870 2195 mm
Insulation thickness 50 100 mm
Diameter/length of first magnesium anode 33/450 33/520 33/450 mm
Diameter/length of second magnesium anode - 33/450 mm
Flange diameter 118 mm
Diameter/length of sensor sockets 16/175 17/210 mm
Sleeve for electric heating element (not supplied) 1 ½” F Ø
Bottom coil water capacity 5,7 9,3 11,0 12,8 16,0 19,0 l
Top coil water capacity 4,1 5,5 7,1 8,0 10,2 10,2 l
Bottom coil heat exchange surface area 0,94 1,53 1,80 2,10 2,80 3,16 m2
Top coil heat exchange surface area 0,68 0,91 1,17 1,31 1,70 m2
Maximum operating pressure of storage cylinder 10 7 bar
Maximum operating pressure of coils 10 bar
Maximum operating temperature 99 °C
Net weight 78 109 139 169 214 244 Kg
Heat loss according to EN 12897:2006 at ΔT=45 °C 2,79 2,24 2,18 2,74 2,50 2,50 kWh/24h
Performance obtained with a primary circuit temperature of 60°C (**)
Power absorbed by top coil 11,0 15,8 19,5 23,4 33,0 33,0 kW
Domestic hot water production – top coil (*) 270 388 480 575 811 811 l/h
Performance obtained with a primary circuit temperature of 70°C (**)
Power absorbed by top coil 15,7 21,7 27,5 31,8 46,0 46,0 kW
Domestic hot water production – top coil (*) 386 532 676 781 1130 1130 l/h
Performance obtained with a primary circuit temperature of 80°C (**)
Power absorbed by top coil 20,7 30,6 36,5 43,0 58,0 58,0 kW
Domestic hot water production – top coil (*) 508 753 897 1056 1425 1425 l/h
Performance obtained with a primary circuit temperature of 90°C (**)
Power absorbed by top coil 26,3 38,0 45,0 53,0 72,0 72,0 kW
Domestic hot water production – top coil (*) 646 934 1105 1300 1769 1769 l/h
(*) With ΔT= 35°C.
(**) Performance achieved with collector circuit pump delivering 3000 l/h, and using a boiler of suitable power.

7
GENERAL
Pressure drops
TOP COIL
PRESSURE DROP (mbar)
600
700
800
500
400
300
200
100
0
0 1000 2000 3000 4000
Mod. 750
1000
Mod. 550
Mod. 430
Mod. 300
Mod. 200
FLOW RATE (l/h)
Pressure drops
BOTTOM COIL
PRESSURE DROP (mbar)
0
0
200
50
100
150
200
250
300
350
400 600 800 1000 1200 1400 1600
Mod. 550
Mod. 750
Mod. 430
Mod. 300
Mod. 200
Mod. 1000
FLOW RATE (l/h)
Tests performed with a 30% glycol/water solution.

8
GENERAL
7 Water circUit
TYPICAL WATER SYSTEM SCHEMATIC
°C
M
10
10
10
6
7
9
8
12
11
13
PS
5
16
2
18
R
M
4
3
UAC
EAF
MC
RC
11
98
10
10
10 10
7
15 14
17
19
MI Dir MI Mix
RI Mix
PR
10
10
16
SB1
SB2
SCo
PD
22
16
10
16
10
16
10
10
10
10 10
21
10
21
RI Dir
10
10
20 PB
Solar regulator
Boiler
Water control system
1 Solar collector
2 Collector temperature sensor socket
3 Manual bleed valve
4 Vent cock
5 Vent valve
6 Pressure gauge
7 Safety valve
8 Drain
9 Expansion vessel
10 Disconnect valves
11 Temperature gauge
12 Flow regulator
13 Flow meter
14 Pressure reducer
15 Water softener filter
16 Non-return valve
17 Thermostatic mixer valve
18 Solar storage cylinder
19 DHW recirculation temperature sensor
20 Central heating system pump
21 Central heating system manifolds
22 Mixer valve
UAC Domestic hot water outlet
EAF Domestic cold water inlet
MI Mix Mixed central heating flow
RI Mix Mixed central heating return
MI Dir Direct central heating flow
RI Dir Direct central heating return
MC Outlet from boiler
RC Return to boiler
M Collector outlet
R Collector return
PI Mix Mixed central heating pump
PB Solar storage cylinder heating pump
PR DHW recirculation pump
PD Direct central heating pump
PS Solar collector circuit pump
SB1 Storage cylinder top temperature sensor
SB2 Storage cylinder bottom temperature sensor
SCo Collector probe
Note! The above schematic is purely indicative.
b B
IDRA DS storage cylinders are delivered without a boiler heating pump. A suitably rated pump must be provi-
ded 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 sto-
rage 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.

9
GENERAL
8 location of sensors
B IDRA DS 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.
B
A
Psc
Pau
Psr
C
A Temperature sensor socket
B Temperature sensor
C Guide
Psc Boiler temperature sensor socket
Pau Auxiliary temperature sensor socket
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.

10
GENERAL
9 overall diMensions and Water fittings
IDRA DS 200 - 430
(*) Cable routing PS 35
M R
A
B
C
D
E
F G
H
I
L
N
O
Q
UAC
MC
Psc
Pau
Psr
EAF (SB)
RL
RE
TR
RC
ICP
(*)
ICP
AD1 AD1
DSA DSA
DESCRIPTION
IDRA DS
200 430
UAC Domestic hot water outlet 1” F Ø
MC Outlet from boiler 1” F Ø
RC Return to boiler 1” F Ø
M Outlet from solar collector 1” M Ø
R Return to solar collector 1” M Ø
RL DHW recirculation ¾” F Ø
EAF (SB) – Domestic cold water inlet (storage cylinder drain) 1” F Ø
Psc Diameter/length of boiler sensor socket 16/175 mm
Psr Diameter/length of solar controller sensor socket 16/175 mm
Pau Diameter/length of auxiliary temperature sensor socket 16/175 mm
RE Sleeve for electric heating element (not supplied) 1 ½” F mm
AD1 Diameter/length of magnesium anode 33/450 33/520 mm
TR Temperature gauge
DSA Sensor/power cable entrance
ICP Rear cable entrance
A 365 460 mm
B 625 860 mm
C 675 910 mm
D 1000 1330 mm
E 170 205 mm
F 425 480 mm
G 140 300 mm
H 645 870 mm
I 725 960 mm
L 840 1125 mm
N 1005 1330 mm
O 1170 1440 mm
P 640 790 mm
Q 1330 1630 mm
S 605 755 Ø 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.

11
GENERAL
IDRA DS 300 - 550
(*) Cable routing PS 35
M R
A
B
C
D
E
F G
H
I
L
N
O
Q
UAC
MC
Psc
Pau
Psr
EAF (SB)
RL
RE
TR
RC
AD1 AD1
ICP ICP
(*)
DSA
DSA
DESCRIPTION
IDRA DS
300 550
UAC Domestic hot water outlet 1” F Ø
MC Outlet from boiler 1” F Ø
RC Return to boiler 1” F Ø
M Outlet from solar collector 1” M Ø
R Return to solar collector 1” M Ø
RL DHW recirculation ¾” F Ø
EAF (SB) – Domestic cold water inlet (storage cylinder drain) 1” F Ø
Psc Diameter/length of boiler sensor socket 16/175 mm
Psr Diameter/length of solar controller sensor socket 16/175 mm
Pau Diameter/length of auxiliary temperature sensor socket 16/175 mm
RE Sleeve for electric heating element (not supplied) 1 ½” F mm
AD1 Diameter/length of magnesium anode 33/450 33/520 mm
TR Temperature gauge
DSA Sensor/power cable entrance
ICP Rear cable entrance
A 365 460 mm
B 875 960 mm
C 955 1080 mm
D 1490 1650 mm
E 170 205 mm
F 445 505 mm
G 430 445 mm
H 955 1030 mm
I 1035 1130 mm
L 1200 1290 mm
N 1410 1540 mm
O 1670 1785 mm
P 640 790 mm
Q 1840 1980 mm
S 605 755 Ø 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
GENERAL
IDRA DS 750 - 1000
(*) Cable routing P
35
E F G
H
I
O
L N
Q
T
S
M R
A
C
B
D
RE
TR
AD1
AD1 AD1
AD2
(*)
UAC
MC
Psc
Pau
Psr
EAF (SB)
RL
RC
DESCRIPTION
IDRA DS
750 1000
UAC Domestic hot water outlet 1 ¼” M Ø
MC Outlet from boiler 1” F Ø
RC Return to boiler 1” F Ø
M Outlet from solar collector 1” M Ø
R Return to solar collector 1” M Ø
RL DHW recirculation 1” M Ø
EAF (SB) – Domestic cold water inlet (storage cylinder drain) 1 ¼” M Ø
Psc Diameter/length of boiler sensor socket 2 x 7/210 mm
Psr Diameter/length of solar controller sensor socket 2 x 7/210 mm
Pau Diameter/length of auxiliary temperature sensor socket 2 x 7/210 mm
RE Sleeve for electric heating element (not supplied) 1 ½” F mm
AD1 Diameter/length of first magnesium anode 33/450 mm
AD2 Diameter/length of second magnesium anode 33/450 mm
TR Temperature gauge
A 400 400 mm
B 436 525 mm
C 950 1020 mm
D 520 675 mm
E 75 75 mm
F 365 365 mm
G 384 439 mm
H 909 1019 mm
I 994 1111 mm
L 130 130 mm
N 235 235 mm
O (*) 1459 1695 mm
P 1050 1050 mm
Q 248 336 mm
S 1018 1018 Ø mm
T 1840 2165 mm
(*) This fitting can be used as an alternative installation position for the first magnesium anode (in installations where
height is limited).
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.

13
INSTALLER
10 UnPacking tHe ProdUct
MODELS IDRA DS 200 to 550
B IDRA DS storage cylinders are delivered in a single
package, protected by a cardboard box on a wooden pal-
let.
The following items are delivered in a plastic bag inside the
packaging:
- Instruction manual
- Hydraulic test certificate
A
B
H
IDRA DS ABHWeight
(Kg)
200 700 700 1480 93
300 700 700 1980 126
430 850 850 1790 158
550 850 850 2130 188
MODELS
IDRA DS 750 - 1000
B IDRA DS storage cylinders are delivered in a single
package, protected by a plastic bag inside a protective
foam rubber wrapping and supported by a wooden pallet.
The following items are delivered in a plastic bag inside the
packaging:
- Instruction manual
- Hydraulic test certificate
- 4 adjustable feet
b The second anode for installation instead of the in-
spection flange is supplied separately and must be
fitted by the installer. The first anode comes pre-in-
stalled in the top flange (vertical position).
b The instruction manual is an integral part of the so-
lar storage cylinder. Once located, read it thoroughly
and keep it safe.
A
B
H
IDRA DS ABHWeight
(Kg)
750 1040 1040 2025 235
1000 1040 1040 2350 264
Installer

14
INSTALLER
11 Handling
MODELS IDRA DS 200 to 550
Make sure that any lifting equipment is of adequate capa-
city to lift and move the storage cylinder.
Remove the brackets (1) to remove the storage cylinder
from the pallet.
To lift the storage cylinder, remove the plug (2) and insula-
tion (3) and screw an eyebolt (Ø ¾”) of suitable capacity for
the weight of the cylinder into the hole (4).
1
1
1
2
3
4
If suitable equipment is not on hand to lift the storage cylin-
der 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 platform.
- Make sure that the storage cylinder is perfectly stable,
and then remove the pallet.
- Carefully rotate and slide the storage cylinder off the pla-
tform 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 packa-
ging material in compliance with applicable legisla-
tion.
MODELS IDRA DS 750 to 1000
Make sure that any lifting equipment is of adequate capa-
city to lift and move the storage cylinder.
Remove the brackets (1) to remove the storage cylinder
from the pallet.
To lift the storage cylinder, remove the plug (2), insulation
(3) and magnesium anode (4) and screw an eyebolt (Ø 1
¼”) of suitable capacity for the weight of the cylinder into
the hole (5).
1
1
2
3
4
5
1

15
INSTALLER
If suitable equipment is not on hand to lift the storage cylin-
der 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 platform.
- Make sure that the storage cylinder is perfectly stable,
and then remove the pallet.
- Carefully rotate and slide the storage cylinder off the pla-
tform on to the floor.
- Remove the platform. Position the storage cylinder as
required.
Fit the feet provided into the holes in the bottom of the sto-
rage cylinder and adjust as necessary to compensate for
any unevenness in the floor.
17
The casing and insulation can be removed to facilitate ac-
cess into the place of installation. To do so, proceed as
follows.
- Remove the plug (2). Unscrew the two fixing screws and
remove the top insulation section (3).
- Remove the protective fitting plugs (4).
- Unzip the plastic cover (5).
- Cut the straps (6).
- Remove the insulation shells (7).
Reverse the above steps to fit the insulation again.
b Make sure that the insulation shells (7) are securely
fixed in place by straps before fitting the plastic co-
ver. Use a strap wrench if necessary.
2
3
4
5
7
6
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 packa-
ging material in compliance with applicable legisla-
tion.

16
INSTALLER
12 Place of installation
B IDRA DS storage cylinders can be installed in any
room where there is no specific requirement for an electri-
cal protection rating higher than IP X0D.
≥ 0,4 m
≥ 0,6 m
≥ 0,3 m ≥ 0,4 m
b Respect the minimum specified installation distances
to ensure correct installation and access for mainte-
nance.
13 installation in older
systeMs and systeMs
reqUiring Modernisation
When installing B IDRA DS storage cylinders in old sy-
stems 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 legislation and
standards.
- Make sure that the central heating circuit has been flu-
shed out to remove all sludge and lime scale, and has
been vented and seal tested.
- Make sure that a suitable water treatment system is in-
stalled 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

17
TECHNICAL ASSISTANCE CENTRE
14 PUtting into service
It is essential to perform the following checks before star-
ting up or testing the functioning of the storage cylinder. In
particular, check that:
- The supply cocks in the domestic water circuit are all
open.
- The water connections to the boiler and solar collectors
have been made correctly.
- All the pipes in the water circuit have been insulated in
conformity to relevant standards.
- The electrical connections have been made correctly
(using the hoses provided to route the cables on models
200 to 550.) See page as well as the manuals for all in-
stalled accessories.
- The solar collector circuit has been correctly flushed out
and filled with water-glycol mix, and all air has been bled
out of the circuit. (See the manual for the solar collectors.)
- Start up the boiler (if installed) as instructed in its own
manual.
- Put the solar collectors into service. See the manuals for
the solar collectors and associated accessories.
Once the system has been started up, perform the fol-
lowing checks.
- Make sure that all pumps are free and rotate in the right
direction.
- Make sure that all circuits have been bled.
- Make sure that the boiler and solar collectors connected
to the system shut down correctly when their mains
power switches are turned OFF.
Provided the above checks have been completed satisfac-
torily, restart the system and verify its performance.
15 teMPorary sHUtdoWn
If you are going away for a short period of time like a we-
ekend 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.
16 PreParing for extended
Periods of disUse
If the storage cylinder is not going to be used for an exten-
ded period of time, perform the following operations.
- Switch the electricity supply to the storage cylinder’s val-
ve 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 cir-
cuit.
b Drain the central heating circuit and domestic hot wa-
ter circuit if there is any risk of freezing.
TechnicalAssistanceCentre

18
TECHNICAL ASSISTANCE CENTRE
17 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 ensu-
res reliability over time. Have your storage cylinder serviced
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 val-
ve 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 cir-
cuit.
- Drain the storage cylinder’s DHW (secondary) water cir-
cuit
18 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 alcohol
or a suitable cleaning product. Dry the storage cylinder
after cleaning it.
a Do not use abrasive products, petrol or triethylene.
INTERNAL CLEANING
MODELS IDRA DS 200 to 550
Removing and checking the magnesium anode
- Remove the plug (1) and insulation (2), and use a sui-
table 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 resi-
dues through the access hole.
9
8
7
6
5
4
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.

19
TECHNICAL ASSISTANCE CENTRE
MODELS IDRA DS 750 - 1000
Removing and checking the rst magnesium anode
If the magnesium anode is fitted in the top of the storage
cylinder, remove the cover (1) and insulation (2), and use a
suitable wrench to unscrew the anode holder (3).
If the magnesium anode is fitted in position (A), remove the
cover (4) and use a suitable wrench to unscrew the anode
holder (3).
Check the magnesium anode for wear and replace it if ne-
cessary.
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
A
3
4
Removing and checking the second magnesium anode
- Remove the flange cover (5) and use a suitable wrench
to unscrew the anode holder (6).
- 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.
56
Cleaning inside the storage cylinder
Remove the anode (6) as instructed above, and then pro-
ceed as follows.
- Unscrew the bolts (7) and remove the cover (8), taking
care not to damage the magnesium anode (6).
- Remove the seal (9).
- Clean inside the storage cylinder and remove any resi-
dues through the access hole.
9
8
7
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.
b Fill the storage cylinder’s DHW (secondary circuit)
and check that there are no leaks from any of the se-
als.
Check the performance of the storage cylinder.

20
TECHNICAL ASSISTANCE CENTRE
19 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 applicable legislation.
20 troUblesHooting
SUPPLEMENTARY HEATING CIRCUIT
FAULT CAUSE SOLUTION
The storage cylinder functions
incorrectly or irregularly.
Flow rate too high.
- Fit a pressure limiter.
- Fit a flow reducer.
There are blockages or deposits in the
domestic hot water circuit. - Check and clean as necessary.
The pump is malfunctioning. - Check the pump.
The water temperature from the boiler
is too low. - Check the temperature setting.
There is air in the primary circuit. - Bleed the circuit.
SOLAR COLLECTOR CIRCUIT
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 ap-
proximately 3 bar when cold.
There is lime scale or sludge in the
cylinder. - Check and clean as necessary.
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. Repla-
ce if necessary.