Immergas UB INOX SOLAR 200-2 Instruction Booklet And Warning

UB INOX

Solar 200-2

STORAGE

TANK UNIT

Instruction booklet and

warning

IE

*1.033447ENG*

Dear Client,

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 customer

you can also count on a qualied aer-sales service, prepared and updated to guarantee constant eciency of your storage tank unit.

Read the following pages carefully: you will be able to draw useful suggestions regarding the correct use of the appliance, the respect of which, will conrm

your satisfaction for the Immergas product.

For any interventions or routine maintenance contact Immergas Authorised Centres: these have original spare parts and boast of specic preparation directly

from the manufacturer.

General recommendations

e instruction book is an integral and essential part of the product and must be consigned to the user.

It must be kept well and consulted carefully, as all of the warnings supply important indications for safety in the installation, use and maintenance stages.

Installation and maintenance must be performed in compliance with the regulations in force, according to the manufacturer and by professionally
qualied sta, intending sta with specic technical skills in the plant sector, as envisioned by the Law in force.

Incorrect installation can cause injury to persons and animals and damage to objects, for which the manufacturer is not liable. Maintenance must be carried
out by skilled technical sta. e Immergas Authorised Aer-sales Service represents a guarantee of qualications and professionalism.

e appliance must only be destined for the use for which it has been expressly declared. Any other use must be considered improper and therefore dangerous.

If errors occur during installation, running and maintenance, due to the non-compliance of 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 damage
and the appliance warranty is invalidated.

For further information regarding legislative and statutory provisions relative to the installation, consult the Immergas site at the following address: www.
immergas.com.

DECLARATION OF CONFORMITY

For the purpose and eect of the 97/23/CE PED Directive, 2004/108/CE EMC Directive and 2006/95/CE Low Voltage Directive.
e Manufacturer: Immergas S.p.A. v. Cisa Ligure n° 95 42041 Brescello (RE)

DECLARES THAT: the Immergas storage tanks model:

UB INOX Solar 200-2

are in compliance with the same European Community Directives.

Mauro Guareschi

Research & Development Director

Signature:

INDEX

Immergas S.p.A. 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.

1 Storage tank unit installation ................... 4

1.1 Installation recommendations. ................4

1.2 Main dimensions. ...................................... 4

1.3 Connection group. ....................................4

1.4 Electrical connection: ............................... 5

1.5 System lling. ............................................. 5

1.6 Domestic hot water storage tank unit. ... 5

1.7 Hydraulic circuit resistance. ....................5

1.8 Circulation pump. .....................................5

1.9 DHW mixing valve. .................................. 6

1.10 Kits available on request. .......................... 6

1.11 Main components. .................................... 6

1.12 Circulation unit main components. ....... 7

1.13 Commissioning. ........................................ 7

1.14 Solar circuit system lling. .......................7

1.15 Solar control unit user instructions. .......8

2 Instructions for use and maintenance. 11

2.1 Cleaning and maintenance. ................... 11

2.2 Emptying the storage tank unit. ............ 11

2.3 Case cleaning. .......................................... 11

2.4 Decommissioning. .................................. 11

2.5 Control panel. ..........................................11

3 Control and maintenance .....................12

3.1 Hydraulic diagram. .................................12

3.2 Wiring diagram. ......................................13

3.3 Yearly appliance check

and maintenance. ....................................13

3.4 Casing removal. .......................................14

3.5 Replacing the anode. ............................... 14

3.6 Technical data. .........................................14

USER pageINSTALLER page MAINTENANCE TECHNICIAN page

3

1-1

1-2

V

RU

MU

RP

MP

RC

AF

AC

INSTALLERUSER

MAINTENANCE TECHNICIAN

1

STORAGE TANK UNIT

INSTALLATION

1.1 INSTALLATION
RECOMMENDATIONS.

Only professionally enabled heating/plumbing
technicians are authorised to install Immergas
appliances.
Installation must be carried out according to the
Standards, current legislation and in compliance
with local technical regulations and the required
technical procedures.
Before installing the appliance, 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 appliance is installed inside or between
cabinets, ensure sufficient space for normal
servicing; therefore it is advisable to leave a gap
of 2÷3 cm between the storage tank casing and
the sides of the cabinet.
In the event of malfunctions, faults or incorrect
operation, turn the appliance o immediately
and contact a qualif ied technician (e.g. the
Immergas Technical Aer-Sales Centre, which
has specically trained sta and original spare
parts). Do not attempt to modify or repair the
appliance alone.
Failure to comply with the above implies personal
liability and invalidates the warranty.

• Installation Standards: These storage tanks
have been designed for oor installation; they
must be used for the storage of domestic hot
water and similar purposes. ey have not be
designed for wall-installation.

Important: these units are used to store water at
a temperature below boiling point at atmospheric
pressure. ey must be connected to a boiler and
to a DHW water distribution network. ey must
be installed in rooms where the temperature
cannot fall below 0°C and must not be exposed
to atmospheric agents.

Key:
V - Electrical connection
AC - DHW outlet
RU - Return from storage tank unit
MU - Flow to storage tank unit
AF - DHW inlet
RP - Return to solar panels
MP - Flow from solar panels
RC - DHW recirculation pump (Optional)

1.2 MAIN DIMENSIONS.

Hydr aulic connection. Before maki ng the

connections, all of the system piping must be
washed thoroughly to remove any residues that
could compromise the good functioning of the

1.3 CONNECTION GROUP.

Key:
V - Electrical connection
AC - 3/4'' DHW outlet
RU - 3/4" return from storage tank unit
MU - 3/4" ow to storage tank unit
AF - 3/4'' DHW inlet
RP - 3/4" return to solar panels
MP - 3/4” ow from solar panels
RC - 1/2” DHW recirculation pump (Optional)

storage tank. Water connections must be made in
a rational way using the couplings on the storage
tank template. 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.

CONNECTIONS

SYSTEM DOMESTIC HOT WATER

MU-RU MP-RP AF AC RC

3/4” 3/4” 3/4” 3/4” 1/2”

4

1-3

1-4

B

A

A

INSTALLERUSER

MAINTENANCE TECHNICIAN

Hydraulic circuit resistance.

Head (kPa)

Flow rate (l/h)

Head (m H

2

O)

A - Storage tank unit hydraulic

circuit resistance

1.4 ELECTRICAL CONNECTION:

e storage tank has an IPX0D protection rating
for the entire appliance. Electrical safety of the
appliance is reached only when it is correctly
connected to an efficient earthing system as
specied by current safety standards.

Imp ortant: Imm ergas S.p. A. dec lines any
responsibility for damage or physical injury
caused by failure to connect the storage tank unit
to an ecient earth system or failure to comply
with the reference standards.

Als o ensure that the elec tr ic al inst al lation
corresponds to maximum absorbed power
specifications as shown on the storage tank
data-plate.
e storage tank unit is supplied complete with
an “X” type power cable without plug.

Solar collector probe connection.

Connect the solar collector probe to pins 45
and 46 onto the terminal board (Fig.1-5 part.

17) present inside the storage tank unit, paying
attention to eliminate the resistance R15 as
indicated in the wiring diagram.

Storage tank connection to the boiler.

Connec t th e storage tank to the boi le r as
indicated in the wiring diagram, using a cable
(not present) to connect clamps 36 and 37 to the
boiler and to the storage tank.

Storage tank unit electric connection.

e power supply cable must be connected to
a 230V ±10% / 50Hz mains supply respecting
L-N polarity and earth connection

. is
network must also have an omnipolar circuit
breaker with class III over-voltage category.
When replacing the power supply cable, contact
a qualied technician (e.g. the Immergas Aer­Sales Technical Assistance Service).

For the main power supply to the appliance,
never use adapters, multiple sockets or extension
leads.

Sola r colle ctor retur n pr ob e conn ectio n
(optional).

Connect the solar collector return probe to pins
8 and 7 on the terminal board present inside the
storage tank unit.

Important: aer the connections have bee made,
the new system layout must be set on the solar
control unit as follows:

- press the “i” key for about 10 seconds;

- use the scrolling keys to nd parameter 27
(system conguration);

- press the “i” key for about 2 seconds.

- on enter i n g pa r ameter 2 7, fi nd t hat
conguration 1 is set; use the scrolling keys to
select conguration 2.

- press the “i” key to conrm the conguration
selected.

1.5 SYSTEM FILLING.

Once the storage tank has been connected, ll
the system via the boiler lling valve. Filling is
performed at low speed to ensure release of air
bubbles in the water via the boiler and central
heating system vents.
Close the lling valve when the boiler manometer
pointer indicates approx. 1.2 bar (see boiler
instruction book).

1.6 DOMESTIC HOT WATER STORAGE

TANK UNIT.

e storage tank unit must be connected to a
boiler. It contains large coiled stainless steel heat
exchanger pipes, which allow to notably reduce
hot water production times. is storage tank
unit, manufactured with stainless steel casing and
bottoms, guarantees long duration through time.

e assembly concepts and welding (T.I.G.) are
implemented to the minimum detail to ensure
maximum reliability.
e upper inspection ange ensures practical
control of the storage tank unit and the coil heat
exchanger pipe and easy internal cleaning.
e DHW couplings are positioned on the lid
of the ange (cold inlet and hot outlet). e
Magnesium Anode holder cap including the
same, supplied as per standard for the internal
protection of the storage tank from possible
corrosion, is found on the side of the storage tank.

N.B.: every yea r a skilled technician (e.g.
Immerg as Authorised After-sales Ser vice) ,
must check the eciency of the storage tank
unit Magnesium Anode. e storage tank unit
is prepared for introduction of the domestic hot
water pump tting.

1.7 HYDRAULIC CIRCUIT RESISTANCE.

In order to guarantee sucient DHW ow rate,
it is important to consider the resistance of the
storage tank hydraulic circuit to be coupled to
the boiler. (Fig. 1-3). For correct connection of
the storage tank unit to Immergas boilers, see the
boiler instruction book.

1.8 CIRCULATION PUMP.

e storage tank unit is supplied with a built-in
circulation pump with 3-position electric speed
control. With the circulation pump on first
speed it is probable that there is not sucient
circulation. e circulation pump is already tted
with a capacitor.

Pump release. If, aer a prolonged period of
inactivity, the circulation pump is blocked,
unscrew the front cap and turn the motor sha
using a screwdriver. During this operation, avoid
damage to the motor.

Circulation group available head.

Head (m H

2

O)

Head (kPa)

Flow rate (l/h)

A = Head available to the pump unit at third speed
B = Head available to the pump unit at second speed

5

1-4

1- 5

INSTALLERUSER

MAINTENANCE TECHNICIAN

Key:
1 - DHW circuit mixing valve.
2 - Stainless steel coil for storage tank
3 - Domestic hot water probe
4 - DHW expansion vessel
5 - Magnesium anode
6 - DHW inlet probe
7 - 8 bar safety valve
8 - Storage tank draining valve
9 - Shut-o valve with thermometer
10 - 6 bar safety valve
11 - Solar pump
12 - ermometer probe
13 - Flow meter
14 - Solar expansion vessel
15 - Stainless steel coil that can be coupled to solar panels
16 - Solar panels probe
17 - Storage tank unit electric connections terminal board

1.11 MAIN COMPONENTS.

1.9 DHW MIXING VALVE.

e thermostatic mixing valve mixes the cold
water with the hot water and via an internal
wax element, sensit ive to the temperature,
automatically controls the temperature of the
mixed water set by the user.

N. B.: for exce llent mana geme nt of the
temperatures, the mixing valve must be set by
the installer at a safety temperature required by
the user. e DHW output temperature can also
depend on the value set on the boiler, however,
the DHW temperature upper limit value is always
determined by the position of the mixing valve:

knob position 1 = 42°C, 2 = 48°C, 3 = 54°C, 4 =
60°C (as per standard) (the values indicated refer
to a storage tank with water at 70°C).

Any release of the three-way mixing valve. If
aer a long period of inactivity the three-way
mixing valve is blocked, it is necessary to act
manually on the knob positioned on the top of
the same in a way to release the shutter of the
valve itself.

1.10 KITS AVAILABLE ON REQUEST.

• Pump kit (on request). e storage tank unit
is prepared for application of the pump kit.
Immergas supplies a series of fittings and
attachments that allow connection between
the storage tank unit and domestic hot water
system. The pump kit attachment is also
envisioned on the template.

• Ele ct ronic anode kit (on request). Direct
current is made to circulate between the device
and the tank to be protected via a special
titanium anode. Use the free tting on the
storage tank supper ange for installation of
the anode.

e above-mentioned kits are supplied complete
with instructions for assembly and use.