Immergas INOXSTOR 200 V2 Operating instructions

Instruction and
recommendation booklet
IE INOXSTOR
200-300-500
V2
Storage tank
*1.041259ENG*

Dear Customer,
Our compliments for having chosen a top-quality Immergas product, able to assure well-being and safety for a long period of time. As an Immergas cus-
tomer you can also count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your storage tank.
Read the following pages carefully: you will be able to draw useful suggestions regarding the correct use of the storage unit, the respect of which, will conrm
your satisfaction for the Immergas product.
For any interventions or routine maintenance contact Authorised Centres: these have original spare parts and boast of specic preparation directly from
the manufacturer.
General recommendations
All Immergas products are protected with suitable transport packaging.
e material must be stored in dry environments protected against bad weather.
e instruction book is an integral and essential part of the product and must be consigned to the new user also in the case of transfer or succession of
ownership.
It must be stored with care and consulted carefully, as all of the warnings provide important safety indications for installation, use and maintenance stages.
is instructions manual provides technical information regarding installation of Immergas storage tank units. As for the other issues related to instal-
lation of the said storage tank units (e.g. safety in the work site, environment protection, injury prevention), it is necessary to comply with the provisions
specied in the regulations in force and principles of good practice.
In compliance with legislation in force, the systems must be designed by qualied professionals, within the dimensional limits established by the Law.
Installation and maintenance must be performed in compliance with the regulations in force, according to the manufacturer’s instructions and by an
authorised company, which has specic technical expertise in the system sector, as required by Law.
Improper installation or assembly of the Immergas appliance and/or components, accessories, kit and devices can cause unexpected problems to people,
animals and objects. Read the instructions provided with the product carefully to ensure a proper installation.
Maintenance must be carried out by an authorised company. e Authorised Aer-sales Service represents a guarantee of qualication and professionalism.
e appliance must only be destined for the use for which it has been expressly declared. Any other use will be considered improper and therefore poten-
tially dangerous.
If errors occur during installation, operation and maintenance, due to non compliance with technical laws in force, standards or instructions contained in
this book (or however supplied by the manufacturer), the manufacturer is excluded from any contractual and extra-contractual liability for any damages
and the appliance warranty is invalidated.
e manufacturer declines all liability due to printing or transcription errors, reserving the right to make any modications to its
technical and commercial documents without forewarning.

INDEX
1 Storage tank unit installation.........................................5
1.1 Installation recommendations.............................................. 5
1.2 Main dimensions.................................................................... 6
1.3 Hydraulic connection. ........................................................... 7
1.4 System lling........................................................................... 7
1.5 Domestic hot water storage tank unit.................................. 7
1.6 Main components................................................................... 8
1.7 Kit available on request.......................................................... 9
2 User and maintenance instructions .............................10
2.1 Cleaning and maintenance.................................................. 10
2.2 Functioning........................................................................... 10
2.3 Emptying the storage tank unit. ......................................... 10
2.4 Case cleaning......................................................................... 10
2.5 Decommissioning................................................................. 10
3 Control and maintenance.............................................11
3.1 Functional diagrams. ........................................................... 11
3.2 Yearly control and maintenance of the storage unit. ....... 13
4 Technical Data.............................................................. 14
4.1 Storage unit technical data.................................................. 14
4.2 Product data sheet (in compliance with regulation
812/2013)............................................................................... 15

5
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1STORAGE TANK UNIT INSTALLATION
1.1 INSTALLATION RECOMMENDATIONS.
e place of installation of the appliance and relative Immergas
accessories must have suitable features (technical and structural)
such to allow (always in safety, eciency and comfortable condi-
tions):
- installation (according to the provisions of the technical legisla-
tion and technical regulations);
- maintenance operations (including scheduled, periodic, routine
and special maintenance);
- removal (to outdoors in the place for loading and transporting
the appliances and components) as well as their eventual replace-
ment with appliances and/or equivalent components.
Only professionally enabled companies are authorised to install
Immergas appliances.
Installation must be carried out according to regulation standards,
current legislation and in compliance with local technical regula-
tions and the required technical procedures. Before installing the
storage tank unit, ensure that it is delivered in perfect condition;
if in doubt, contact the supplier immediately. Packing materials
(staples, nails, plastic bags, polystyrene foam, etc.) constitute a
hazard and must be kept out of the reach of children.
If the storage tank unit is installed inside or between cabinets,
ensure there is sucient space for normal servicing. It is advisable
to leave an adequate gap between the storage tank casing and the
sides of the cabinet.
A space of at least 650 mm is to be le in the upper part and 450
mm in the inspection and sacricial anode connection areas.
In the event of a malfunction, fault or incorrect -operation, disable
the storage tank unit and contact an authorised company (e.g. the
Authorised Technical Assistance centre, which has specically
trained sta and original spare parts).
Do not attempt to modify or repair the appliance alone. Immergas
is to comply with the conditions specied in the conventional war-
ranty contract during the period of validity of the said warranty.
Failure to comply with the above implies personal responsibility
and invalidates the warranty.
• Installation regulations: previously check the features of the
place of installation regarding clearance and total weight of the
accumulation, if necessary placing a support surface under the
storage tank in order to optimise distribution of the weight. ese
storage tanks have been designed only for oor installation; they
must be used for the storage of domestic hot water for domestic
and similar uses. ey have not been designed for wall instal-
lation. Make sure that the volume and pre-charged pressure of
the expansion tank of the secondary circuit are suitable for the
system;
N.B.: It is mandatory to have a properly sized safety valve and
expansion vessel to place on both hydraulic circuits.
Important: this storage unit is used to produce and store hot water;
it must therefore be connected to a heating plant, to a domestic
hot water distribution network and a water system, which are
compatible with its performance and power. e materials used
for the installation and connection must be completely compatible
with the minimum features requested for solar use.
It must be installed in an environment where the temperature
cannot fall below°C. It must not be exposed to atmospheric agents.

6
1
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1.2 MAIN DIMENSIONS.
Key:
D - Storage tank diameter
H - Storage tank height
AN - Sacricial anode housing
ISP - Inspection ange
AF - Domestic cold water inlet
RP - Return from solar panels
MP - Solar panels ow
RU - Return from storage tank
RC - Pump (Optional)
MU - Storage tank ow
AC - Domestic hot water outlet
B2-A - Domestic hot water probe
B2-B - Heat pump probe (Only for 200 V2)
B12 - Storage tank solar probe
E15 - Storage tank integration resistance (optional)
T - DHW thermometer
X - Distance above ground to x circulation unit
INOXSTOR 200 V2
(mm) ØINOXSTOR 300 V2 (mm) ØINOXSTOR 500 V2 (mm) Ø
DØ 620 -- Ø 620 -- Ø 810 --
H1325 -- 1715 -- 1735 --
AN1 3/4” 3/4” 3/4”
AN2 259 3/4” 273 3/4” 289 3/4”
ISP 315 100x150 315 100x150 430 100x150
AF 222 3/4’’ 222 3/4’’ 215 1’’
RP 265 3/4’’ 265 3/4’’ 305 1’’
MP 675 3/4’’ 815 3/4’’ 860 1’’
RU 765 3/4’’ 995 3/4’’ 960 1’’
RC 860 3/4’’ 1130 3/4’’ 1200 3/4’’
MU 970 3/4’’ 1345 3/4’’ 1310 1’’
AC 1060 3/4’’ 1450 3/4’’ 1420 1’’
B2-A 862 -- 1237 -- 1100 --
B2-B 640 -- -- -- -- --
B12 360 -- 430 -- 500 --
E15 715 1’’ 1/2 925 1’ 1/2 910 1’ 1/2
T1035 -- 1450 -- 1350 --
X805 -- 1202 -- 1180 --

7
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1.3 HYDRAULIC CONNECTION.
Before making the connections, all of the system piping must be
washed thoroughly to remove any residues that could compromise
the good functioning of the storage tank. Water connections must
be made in a rational way.
N.B.: while performing the connection, set up a drain tting and
an interception cock at the cold water inlet (AF) to facilitate main-
tenance operations. e storage tank safety valve outlet must be
connected to a draining funnel. If this is not the case, the storage
tank manufacturer declines any liability in the event of ooding
if the drain valve cuts in.
Unused DHW side hydraulic connections are to be closed with
hydraulic seal caps.
All connection ttings must be adequately insulated to minimise
heat dispersion.
Insulated caps to be applied on unused ttings during installation
are standard supplied.
Attention: to preserve the duration of the D.H.W. heat exchanger’s
eciency features, we recommend the installation of a device to
reduce the formation of lime scale in presence of water whose char-
acteristics can lead to lime scale deposits.
1.4 SYSTEM FILLING.
On connection of the storage tank, ll the system. Filling is per-
formed at low speed to ensure release of air bubbles in the water
via the heating system vents.
e lling valve must be closed when the pointer on the boiler
manometer indicates about 1.2 bar (see boiler instruction book).
1.5 DOMESTIC HOT WATER STORAGE TANK UNIT.
e storage tank unit must be connected to a boiler, solar panel
system or heat pumps.
Storage tanks are insulated with high-performing insulating
materials that can limit heat dispersion. e insulating material
on Inoxstor 200 and 300 litre models is about 60 mm thick and
about 80 mm thick on Inoxstor 500 litre model.
- Boiler protection: this storage tank is manufactured with a stain-
less steel casing and bottom, which guarantees a long life. e
assembly concepts and welding (T.I.G.) are implemented to the
minimum detail to ensure maximum reliability.
- Eciency: the coiled heat exchange surface is sized to supply
large quantities of hot water.
- e storage tank has two seats to include the sacricial anode,
which is supplied as standard to protect the inner part of the
storage tank against corrosion; one is on the upper part and the
other is on the side of the storage tank.
N.B.: annually check (e.g. the Authorised Technical Assistance
centre) eciency of the sacricial anodes.

8
2
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1.6 MAIN COMPONENTS.
Key:
1 - Insulating material
2 - Sacricial anode L = 350 mm ( L = 590
mm for Inoxstor 500) (optional seat for an
electronic anode)
3 - DHW thermometer
4 - Domestic hot water probe
5 - Storage tank coil
6 - Recirculation tting (Optional)
7 - Storage tank integration resistance (optional)
8 - Heat pump probe (Only for 200 V2)
9 - Solar panels coil
10 - Inspection ange
11 - Solar boiler probe
12 - Sacricial anode L = 350 mm (optional seat
for an electronic anode)

9
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
1.7 KIT AVAILABLE ON REQUEST.
• Pump kit (on request). e storage tank unit is prepared for ap-
plication of the pump kit. Immergas supplies a series of ttings
and attachments that allow connection between the storage tank
unit and domestic hot water system. e pump kit attachment
is also envisioned on the template.
• Solar panels kit (on request). e storage tank unit is set up to be
coupled with solar panels. Immergas provides the various solar
panel coupling kits on request.
• Storage tank integration resistance kit (on request). e storage
tank unit is set up for application of an integration resistance to
provide the anti-freeze function, which can be calibrated by a
specic thermostat.
• Electronic anode kit. e storage tank is set up for the installa-
tion of the electronic anode. Direct current is made to circulate
between the device and the tank to be protected via a special
titanium anode screwed on and located inside storage tank
itself. e capacity of the electronic anode for self learning and
adjusting itself according to the actual conditions of the structure
under protection make even the supply of the current dynamic
and perfectly balanced with the requirements of the system to
be protected.
e above kits are supplied complete with instructions for as-
sembly and use.

10
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
2USER AND MAINTENANCE INSTRUCTIONS
2.1 CLEANING AND MAINTENANCE.
Attention: to preserve integrity of the storage tank unit and keep
the safety features, performance and reliability, which distinguish
it, unchanged over time, you must at least execute maintenance
operations on a yearly basis in compliance with what is stated in
the relative point at “annual check and maintenance of the appli-
ance”, in compliance with national, regional, or local standards in
force. Annual maintenance is essential to validate the Immergas
warranty. We recommend stipulating a yearly cleaning and main-
tenance contract with an authorised local rm.
2.2 FUNCTIONING.
is storage tank allows easy provisioning of water for domestic
use and industrial use.
e storage tank is connected to the water distribution network via
the cold water tting and to the utilities via the hot water tting.
If a utility withdraws hot water, the cold water enters the tank
where it is heated to the temperature set on the thermostat.
It is recommended to adjust the temperature between 60 and 65°C
because this temperature guarantees the best performance of the
storage tank unit and at the same time ensures:
- maximum hygiene
- maximum aordability
- delay in lime scale formation
e DHW in the storage tank is heated with the passage of CH/
solar water, which circulates inside the coils inside the storage
tank unit itself.
In all cases the maximum temperature inside the storage tank unit
must not exceed 99°C.
2.3 EMPTYING THE STORAGE TANK UNIT.
To drain the storage tank, use the special draining valve in the
lower part of the storage tank.
Before draining, ensure that the DHW inlet valve is closed.
2.4 CASE CLEANING.
To clean the outer parts of the storage tank, just use a cloth damp-
ened with product suitable for the purpose that can be found on
the market. Abrasive, solvents, petrol and alcohol products are
not recommended.
2.5 DECOMMISSIONING.
In the event of permanent shutdown of the storage tank, contact
an authorised company for the relative operations, among other
things making sure that water supply is disconnected.
At the end of its service life the appliance must not be disposed of
like normal household waste nor abandoned in the environment,
but must be removed by a professionally authorised company.
Contact the manufacturer for disposal instructions.

11
3
1
3
2
4
5
66
7
8
9
10 11
12
13
14
15
MU
RU
AC
AF
MP
RP
a
b
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3CONTROL AND MAINTENANCE
3.1 FUNCTIONAL DIAGRAMS.
e following are two examples of the connection of the storage
tank unit: one coupled with a solar panel central heating system
(Fig. 3) and one coupled with Magis Pro 4-6-9 V2 (Fig. 4).
Key:
1 - Boiler
2 - External probe
3 - 6 bar safety valve
4 - Solar circulation unit
5 - Solar system expansion vessel
6 - Solar collectors
7 - System vent
8 - Probe unit
9 - Electronic control unit
10 - Mixing valve
11 - Inoxstor storage tank unit
12 - DHW probe tting (NTC 10 k hom at 25°C
supplied as per standard)
13 - Solar panel probe tting
14 - Cold water inlet cock (Not supplied)
15 - DHW inlet safety unit (Not supplied)
a - Water-DHW network
b - To the heating system
AC - Domestic hot water outlet
AF - Domestic cold water inlet
MU - Storage tank unit ow
RU - Storage tank unit return
MP - Flow from solar panels
RP - Return to solar panels

12
4
1
8
4
3
+ -
M
2
6
7
5
GP
RU
RMU
RR
NA NA
NC
AF
AC
a
b
LP
M
cd
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
Key: 1 - Audax Pro V2 outdoor condensing unit
2 - Magis Pro V2 indoor unit
3 - ermal ywheel (to be sized)
4 - Inoxstor storage tank unit
5 - Storage tank unit probe
6 - DHW inlet safety unit (Not supplied)
7 - DHW integrative resistance
8 - Mixing valve
a - Audax Pro V2 outdoor condensing unit power supply
b - Magis Pro V2 indoor unit power supply
c - To the heating system
d - Water-DHW network
NC - Cock normally closed
NA - Cock normally open
AC - Domestic hot water outlet
AF - Domestic cold water inlet
MU - Storage tank unit ow RU - Storage tank unit return MP - Flow from solar panels RP - Return to solar panels
RR - System lling M - System ow
R - System return
LP - Chiller line - liquid phase
GP - Chiller line - gaseous phase

13
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
3.2 YEARLY CONTROL AND MAINTENANCE OF THE
STORAGE UNIT.
e following checks and maintenance should be performed at
least once a year.
- Visually check for water leaks or oxidation from/on connections;
- Check visually that the safety and control devices have not been
tampered with and in particular:
- adjustment probes;
- expansion vessel;
- domestic hot water side safety valve;
- Check integrity of the storage tank sacricial anodes;
- In the case of particularly hard water, decalcication of the stor-
age tank is recommended at least once a year. To perform this
operation the tank must be emptied through the draining valve
and then remove the ange in order to access the inside and use
a plastic or wooden spatula to remove the most resistant deposits
and then clean and rinse with a jet of water.
- During the cleaning phase pay particular attention not to damage
the internal protection of the tank.
- On completion of the operation, re-mount the ange by applying
the gasket (replace it with a new one if it is damaged), close the
draining valve and ll the tank, checking that there are no leaks
from the ange or the valve.

14
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
INOXSTOR 200 INOXSTOR 300 INOXSTOR 500
Hydraulic performances
Storage tank unit capacity l 202,6 279 480,3
Domestic hot water side maximum pressure bar 888
DHW side maximum temperature °C 99 99 99
Maximum coil pressure bar 666
Central heating side maximum temperature °C 90 90 90
Empty storage tank unit weight kg 60,7 75,0 101,0
Full storage tank unit weight kg 274,9 366,1 598,9
Heat dispersion kW h / 24 h 1,95 2,18 2,41
Psbsol W/K 1,81 2,02 2,23
Upper coil
Exchange surface m20,72 0,8 1,23
Coil capacity l 4,1 4,6 7,0
Exchange power kW 32,0 32,0 32,0
Primary uid ow rate l/h 1630 1655 1845
Primary uid T delta °C 17 17 14,9
Useful reintegration power kW 26,3 26,3 26,3
Lower coil
Exchange surface m21,3 1,31 1,84
Coil capacity l 7,5 7,5 10,6
Exchange power kW 52,0 52,0 52,0
Primary uid ow rate l/h 2950 3080 3057
Primary uid T delta °C 15 14,5 14,6
Useful reintegration power kW 34,3 34,3 34,3
4TECHNICAL DATA.
4.1 STORAGE UNIT TECHNICAL DATA.

15
A+
2017 812/2013
A+
A
B
C
D
E
F
A+
2017 812/2013
A+
A
B
C
D
E
F
81 W
203 L
C
INOXSTOR 200 V2
100 W
480 L
C
INOXSTOR 500 V2
91 W
279 L
C
INOXSTOR 300 V2
INOXSTOR 200 V2
INOXSTOR 500 V2
INOXSTOR 300 V2
A+
2017 812/2013
A+
A
B
C
D
E
F
INSTALLER
USERMAINTENANCE TECHNICIAN
TECHNICAL DATA
4.2 PRODUCT DATA SHEET IN COMPLIANCE WITH REGULATION 812/2013.

is instruction booklet
is made of ecological paper
immergas.com
Immergas S.p.A.
42041 Brescello (RE) - Italy
Tel. [phone]
Fax [phone]
Cod. 1.041259ENG - rev. ST.003315/001 - 01/22