Energie ECO 200i User manual

ECO
200i | 250esm | 250i | 250ix | 300esm | 300i | 300ix
200is | 250is | 250isx | 300esms | 300is | 300isx | 500is | 500isx
TECHNICAL MANUAL
EN
European Certification
EN 60335
-1
EN 60335
-2-21
EN 60335
-2-40
Directives
2006/95/CE
Revision 16
Version 0
Date 07/06/2022

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ECO
Esteemed Client,
We would like to thank you for your choice when you acquired an
equipment for sanitary water heating.
The thermodynamic solar system ECO system will surely meet all your
expectations and provide many years of comfort with maximum power
saving.
Our organization dedicates much time, energy and economic resources in
order to develop innovations that will promote power saving in our
products.
Your choice has demonstrated your good sense and concern with power
consumption, a matter that affects the environment.
We have taken on a permanent commitment to conceive innovative and
efficient products so that this rational use of energy can actively contribute
to the preservation of the environment and natural resources of the planet.
Keep this manual whose objective is to inform, alert and advise about the
use and maintenance of this equipment.
Our services are always at your disposal. Feel free to call upon us!

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ECO
Index
1. INTRO..................................................................................................... 6
1.1 Symbols................................................................................................................... 6
1.2 Pre-Installation Information...................................................................................... 6
1.3 Safety Information ................................................................................................... 6
2PACKAGE................................................................................................. 9
2.1 Contents .................................................................................................................. 9
2.2.Transport ................................................................................................................10
3SPECIFICATIONS................................................................................... 11
3.1 Running Principle ...................................................................................................11
3.2 Techincal Features (1 panel)..................................................................................12
3.3 Techincal Features (2 panels) ................................................................................13
3.4 Main Components ..................................................................................................14
3.4.1 General Diagram of Assembly .........................................................................14
3.4.2 Dimensions ......................................................................................................15
3.4.3 ID Plate ............................................................................................................16
3.4.4 Thermodynamic Solar Panel............................................................................17
3.4.5 Thermodynamic Block + Storage Water Heater...............................................18
3.4.6 Refrigerant .......................................................................................................19
3.5 Safety and Control Devices ....................................................................................19
3.5.1 Low Pressure Switch .......................................................................................19
3.5.2 Safety Thermostat............................................................................................19
3.5.3 Temperature Probe..........................................................................................19
3.5.4 Protection Against Corrosion (if applicable) .....................................................19
3.5.5 Dielectric Joint (enamelled boilers) ..................................................................19
3.5.6 Expansion Vessel* ...........................................................................................20
3.5.7 Safety Group....................................................................................................20
3.5.8 Pressure Reducing Valve ................................................................................20
4INSTALLATION ...................................................................................... 21
4.1 Attachment of the Panel .........................................................................................21
4.2 Positioning..............................................................................................................23
4.3 Installation of Thermodynamic Block......................................................................23
4.4 Refrigerant Connections.........................................................................................24
4.4.1 Connections to the panel .................................................................................24
4.4.2 Connection of thermodynamic block to the storage water heater ....................27
4.4.3 Connection of thermodynamic block and panel ...............................................27
4.4.4 Load of Nitrogen ..............................................................................................29
4.4.5 Vacuum............................................................................................................29
4.4.6 Checking good running condition.....................................................................30
4.4.7 Load of complementary refrigerant (if necessary)............................................30
4.5 Hydraulic Connections............................................................................................30
4.6 Electrical Connections ............................................................................................31
4.6.1 Wiring diagram (1 Thermodynamic Panel).......................................................32
4.6.1 Wiring diagram (2 Thermodynamic Panels).....................................................33
5FIRST USE.............................................................................................. 34
5.1 Filling the Tank .......................................................................................................34
5.2 Start Up of the System ...........................................................................................34

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ECO
6SYSTEM OPERATION............................................................................ 35
6.1 Control Panel..........................................................................................................35
6.2 Keys (Functions).....................................................................................................35
6.3 Interface Symbols...................................................................................................36
6.4 Operating Modes....................................................................................................36
6.4.1 ECO Operating Mode ......................................................................................37
6.4.2 AUTO Operating Mode ....................................................................................37
6.4.3 BOOST Operating Mode..................................................................................37
6.5 Extra Modes ...........................................................................................................37
6.5.1 DISINFECT Function .......................................................................................37
6.5.2 VACATION Mode.............................................................................................38
6.5.3 PV Mode ..........................................................................................................38
7SYSTEM MENU ...................................................................................... 39
8ERRORS ................................................................................................. 39
9PARAMETERS DESCRIPTION .............................................................. 40
10 PROBE CHART.................................................................................... 41
11 TROUBLESHOOTING.......................................................................... 41
12 SYSTEM MAINTENANCE.................................................................... 42
12.1 General Inspection ..............................................................................................42
12.2 Magnesium Anode (if applicable) ........................................................................43
12.3 Filter of Reduction Valve .....................................................................................43
12.4 Safety Thermostat...............................................................................................43
12.5 Empty the Water Storage ....................................................................................44
13 DISPOSAL OF EQUIPMENT................................................................ 44

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ECO
1. INTRO
1.1 Symbols
Every process that the supplier believes to be conducive to harmful danger and/or
material damage will be signalled with a danger sign.
To better characterize the danger, the symbol will be followed by one of these
words:
[1] DANGER: when there is the possibility of harm to the operator and/or
people in the vicinity of the equipment
[2] WARNING: when there is the possibility of material damage to the equipment
and/or attached materials.
All the information that the supplier believes to be an asset for better performance
and preservation of the equipment, will be signalled together with the information sign.
1.2 Pre-Installation Information
DANGER
The electrical installation of the equipment must comply with the national regulations
for electrical installations in effect.
ECO will only operate after receiving its load of refrigerant.
The power supply is 230 V, 50 Hz or 60Hz (version of the equipment produced only
by specific request); and the power supply cable is plugged into a socket with earth
wiring. If the power supply cable is damaged, it must be replaced by the manufacturer,
by its customer service, or by staff with similar training in order to avoid any danger.
ECO will only operate if the storage water heater is filled with water. Heating of other
fluid than drinking water is not allowed.
1.3 Safety Information
WARNING
DANGER
This appliance is not intended for use by persons (including children) with reduced
physical or mental abilities, or by persons with a lack of experience or knowledge,
unless they have been trained or instructed in the use of the appliance by a person
responsible for your safety;
Children should be supervised to ensure that they do not play with the appliance;
WARNING
DANGER
The minimum water pressure allowed at the entrance to the hydraulic circuit is
0.1MPa.
The maximum allowed water pressure at the entrance of the hydraulic circuit is
0.3MPa.
If the water supply pressure exceeds the rated pressure, a pressure reducing valve
must be installed in the installation.
The installation of the pressure reducing valve must take into account the correct
direction of the hydraulic flow. The correct direction is represented by an arrow on the
component itself. Incorrect installation poses a danger to equipment and people.

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ECO
WARNING
DANGER
Water temperature min / max in operation: 5/70 ºC;
Water temperature min / max of the water heater: 5/80 ºC;
WARNING
DANGER
When installing the safety unit, the correct direction of the hydraulic flow must be
taken into account. The correct direction is represented by an arrow on the
component itself. Incorrect installation poses a danger to equipment and people.
The safety valve must be activated regularly in order to remove limescale deposits
and check that it is not blocked.
The discharge tube of the safety valve must be open to the atmosphere, properly
oriented towards the sewer, as the valve may drip or even discharge water.
The discharge pipe connected to the safety valve must be installed in a non-icy
environment and continuously oriented downwards.
WARNING
DANGER
The operation of the thermal circuit breaker indicates a possibly dangerous situation.
Do not reset the thermal circuit breaker until the equipment has been repaired or
inspected by a qualified person.
WARNING
DANGER
In order to avoid any danger due to the untimely rearming of the thermal circuit
breaker, the device must not be powered by an external switch, such as a timer, or
connected to a circuit that is regularly put under and out of voltage by the electricity.
When installing:
•The installation of heat pump equipment for heating sanitary water must be carried out by
staff with suitable training and qualified for this purpose;
•The device should not be installed in places that present a risk of impact, shock or
explosion;
•Keep the equipment packed until you reach the place and time of installation;
•Make sure all hydraulic couplings are watertight before connecting the equipment to the
power supply.
Maintenance of the equipment:
•Equipment maintenance should be carried out by customer service, except operations of
general and continuous cleaning which could/should be carried out by the user;
•Power supply to the equipment must be disconnected during maintenance operations;
•The supplier recommends at least one annual inspection to the equipment, by a qualified
technician;
•Cleaning and maintenance must not be carried out by children unless they are under
supervision

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ECO
High pressure and temperature:
•The principle for running this equipment is directly linked to high temperature and pressure;
thus, the processes that imply contact with the equipment, must be thought out with caution
to prevent the risk of burns and projection of material;
Refrigerant:
•The refrigerant used in the entire process is R134a, CFC-free, non-inflammable and
without harmful effects to the ozone layer;
•However, according to the law, the fluid in this equipment cannot be released into the
environment;
•Handling of the fluid in the equipment must be carried out by a qualified technician.
Information for the client:
•The Installer must inform the client about the running of the equipment, its dangers, rights
and duties of the client;

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ECO
2 PACKAGE
2.1 Contents
The equipment is supplied in two packages: one package for the thermodynamic solar panel with
fixing elements, and the other with the thermo-accumulator and the attached thermodynamic group.
The packages contain:
1. Thermodynamic solar panel with fastening elements;
2. Storage water heater;
3. Thermodynamic block;
4. Installation manual, warranty, energy label and product data sheet;
5. Security group;
6. Pressure reducing valve.
4
5
3
4
2
1

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ECO
2.2. Transport
The equipment must be carried in an upright position.
The equipment must be raised and lowered with extreme care, to avoid impact that
could damage the material.
Make sure the belts and/or transportation straps do not damage the material. Always
use suitable means to transport the material (pallet lift, forklift, etc.)
The transport of the equipment must be done with an inclination never exceeding 45º;
Both the packaging containing the water heater and the thermodynamic block must be
transported in an upright position and in the correct direction.
Horizontal transport or with the equipment turned upside down can cause serious
damage to the equipment.
The equipment must always be transported in its original packaging, to the point of installation. Check,
before starting the transport of the equipment, if the path you are going to take is unobstructed, in
order to avoid collisions that could prove damage to the device.
The packaging contains the following information symbols:
Fragile, handle with extreme caution
Keep the package dry
Make sure the arrows a
re always up
Do not stack packages

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ECO
3 SPECIFICATIONS
3.1 Running Principle
The Thermodynamic Solar System ECO is an equipment based on the principle of compression
refrigeration - Carnot's principle - which we call the Thermodynamic Solar Systems: Solar Panel and
a Heat Pump. The solar panel, which is the main component, placed outside ensures the capture of
energy on:
a) Direct and diffuse solar radiation;
b) Outdoor air, by natural convection;
c) The effect of the wind;
d) Rain water.
The temperature difference caused by the mentioned external agents, guarantees that the R134a
(ecological refrigerant) evaporates inside the solar panel.
The absence of glass on the panel allows to increase the thermal exchanges by convection.
After passing through the panel, the R134a is aspirated by the compressor, which raises its
temperature and pressure, which in turn is transmitted to the water circuit through a condenser
external to the tank.
Before the R134a returns to the solar panel, a choke must occur, that is, through a thermostatic
expansion valve the pressure is reduced and the fluid reaches its liquid state again, thus completing
the cycle.
This facility with which we combine technology with a law of nature (change of state of a fluid),
demonstrates the veracity and potential of ECO.
Expansion
Valve
Compressor
Condenser

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ECO
3.2 Techincal Features (1 panel)
Uni.
200i
250i / esm
300i / esm
250ix
300ix
HOT WATER CYLINDER
Dry Weight
kg
40
45 / 83
50 / 95
52
57
Capacity
L
200
250
300
245
295
Water Heater Material -
Stainless
Steel
Stainless Steel /
Enamelled
Stainless Steel
Cathodic Protection -
Magnesium Anode (1”1/4 F) (if applicable)
Hydraulic
Joints
Water – Inlet
and Outlet
Pol.
3/4” Male
PT Valve
1/2” Female
Recirculation
3/4” Male
Coil | Inlet e
Outlet
1” Male
Insulation
-
High density polyurethane 50mm
Maximum Pressure
bar
7
Maximum Pressure
°C
80
Heat Loss (EN 12897)
kWh/24h
0,99
1,01 / 1,20
1,17 / 1,39
1,01
1,17
Exchanger Output Power*
kW
-
a) 20 b) 12
SOLAR
PANEL
Material
-
Solar Coat Anodized Aluminium
Dimensions (L x A x E)
mm
2000 x 800 x 20
Weight
kg
8
Max Working Pressure
bar
12
Exposure Temperature
°C
-40 | 120
THERMODYNAMIC
BLOCK
Absorved Power (Med/Max)
W
390 | 650
Thermal Power (Med/Max)
W
1400 | 2380
Electrical Backup Power
W
1500
Refrigerant / Qt.**
- / g
R134a / 1300
Piping Material
-
Copper (DHP ISO1337)
Line (Liq. | Asp)
Pol.
1/4” | 3/8”
Power Supply***
V / Hz
220-240 / Monophase / 50 ou 60
Fuse (Main | Electrical Heater)
A
10 | 10
Working Temperature °C -5 | 45
P
ERFORMANCE****
Tapping Porfile
-
L
XL
XL
XL
XL
Coefficient of
Performance
(COP)
Air 2ºC
-
2,8
2,9
2,9
2,9
2,9
Air 7ºC
-
3,1
3,2
3,3
3,2
3,3
Air 14ºC
-
3,6
3,8
3,7
3,8
3,7
Energy
Efficiency
ErP Class
Air 2ºC
-
A+
A
A
A
A
Air 7ºC
-
A+
A+
A+
A+
A+
Air 14ºC
-
A++
A+
A+
A+
A+
Energy
Efficiency
Air 2ºC
%
118
121
119
121
119
Air 7ºC
%
132
132
137
132
137
Air 14ºC
%
154
155
151
155
151
Annual
Energy
Consumption
Air 2ºC
KWh/ano
869
1389
1411
1389
1411
Air 7ºC
KWh/ano
774
1268
1227
1268
1227
Air 14ºC
KWh/ano
664
1078
1111
1078
1111
Mixed Water at 40°C
L
247
349
389
342
382
Default Setpoint
°C
53
Sound Power Level Indoor
dB
47
*a) Primary circuit (Tin =90 °C; Tout =80 °C); Production DHW (Tin=10 ºC; Tout=60 ºC)
b) Primary circuit (Tin =70 °C; Tout =60 °C); Production DHW (Tin=10 ºC; Tout=60 ºC)
** The amount of fluid must be checked by the installer. In some cases it is necessary to add or remove fluid in
order to ensure the correct running of the system.
*** The frequency of 60Hz is a version of the equipment produced only by specific request.
**** According to EN16147, Delegated Regulation (EU) Nº 812/2013 and Delegated Regulation (EU) Nº 844/2013,
for the three climatic zones: colder (20C), medium (70C) and warmer (140C).

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ECO
3.3 Techincal Features (2 panels)
Uni.
200is
250is
300is/esm
250isx
300isx
500is
500isx
HOT WATER CYLINDER
Dry Weight
kg
40
45
50/95
52
57
73
93
Capacity
L
200
250
300
245
295
455
443
Water Heater Material - Stainless
Steel
Stainless
Steel
Stainless
Steel /
Enamelled
Stainless Steel
Cathodic Protection -
Magnesium Anode (1”1/4 F) (if applicable)
Hydraulic
Joints
Water –
Inlet and
Outlet
Pol.
3/4” Male 1” Male
PT Valve
1/2” Female
1/2” Male
Recirculation
3/4” Male
Coil | Inlet e Outlet
-
1” Male
-
1” Male
Insulation
-
High density polyurethane 50mm
Maximum Pressure
bar
7
Maximum Pressure
°C
80
Heat Loss (EN 12897)
kWh/24h
1,04
1,01
1,17/1,39
1,01
1,17
1,81
1,81
Exchanger Output Power* kW a) 20 b) 12 -
a)54,2
b)12
SOLAR
PANEL
Material
-
Solar Coat Anodized Aluminium
Dimensions (L x A x E)
mm
2000 x 800 x 20
Weight
kg
8
Max Working Pressure
bar
12
Exposure Temperature
°C
-40 | 120
THERMODYNAMIC
BLOCK
Absorved Power (Med/Max)
W
620 | 950
Thermal Power (Med/Max)
W
2300 | 3760
Electrical Backup Power
W
1500
Refrigerant / Qt.**
- / g
R134a / 1300
Piping Material
-
Copper (DHP ISO1337)
Line (Liq. | Asp)
Pol.
1/4” | 3/8”
Power Supply***
V / Hz
220-240 / Monophase / 50 ou 60
Fuse (Main | Electrical Heater)
A
10 | 10
Working Temperature °C -5 | 45
P
ERFORMANCE****
Tapping Porfile
-
L
XL
XL
XL
XL
XXL
XXL
Coefficient of
Performance
(COP)
Air 2ºC
-
2,76
2,8
2,8
2,8
2,8
2,9
2,9
Air 7ºC
-
3,09
3,2
3,1
3,2
3,1
3,3
3,3
Air 14ºC
-
3,55
3,7
3,7
3,7
3,7
3,5
3,5
Energy
Efficiency ErP
Class
Air 2ºC
-
A+
A
A
A
A
A
A
Air 7ºC
-
A+
A+
A+
A+
A+
A+
A+
Air 14ºC
-
A++
A+
A+
A+
A+
A+
A+
Energy
Efficiency
Air 2ºC
%
116
117
116
117
116
118
118
Air 7ºC
%
130
132
130
132
130
132
132
Air 14ºC
%
151
152
151
152
151
139
139
Annual Energy
Consumption
Air 2ºC
KWh/ano
885
1438
1447
1438
1447
1823
1823
Air 7ºC
KWh/ano
786
1272
1300
1272
1300
1638
1638
Air 14ºC
KWh/ano
679
1103
1112
1103
1112
1553
1553
Mixed Water at 40°C
L
247
349
389
342
382
599
592
Default Setpoint
°C
53
Sound Power Level Indoor
dB
47
*a) Primary circuit (Tin =90 °C; Tout =80 °C); Production DHW (Tin=10 ºC; Tout=60 ºC)
b) Primary circuit (Tin =70 °C; Tout =60 °C); Production DHW (Tin=10 ºC; Tout=60 ºC)
** The amount of fluid must be checked by the installer. In some cases it is necessary to add or remove fluid in
order to ensure the correct running of the system.
*** The frequency of 60Hz is a version of the equipment produced only by specific request.
**** According to EN16147, Delegated Regulation (EU) Nº 812/2013 and Delegated Regulation (EU) Nº 844/2013, for the three
climatic zones: colder (20C), medium (70C) and warmer (140C).

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ECO
3.4 Main Components
3.4.1 General Diagram of Assembly
CAPTION
1
Shut Off Valve
7
Drain Valve
2
Pressure Reducing Valve (3 bar / 0,3 MPa)
8
Circulation Pump
3
Non-return Valve
9
Thermostatic Mixing Valve
4
Safety Group (7 bar / 0,7 MPa)
A
Cold Water Inlet
5
Drainage Siphon
B
Hot Water Outlet
6
Expansion Vessel
C
Recirculation
WARNING
It is necessary to install a safety device at the cold water inlet of the appliance.
The safety device must be in compliance with the standard EN 1487:2002,
maximum pressure 7 bar (0.7 MPa) Water must not be stopped from flowing
from the safety device to the deposit by any sort of accessory.
The safety device must be connected with piping whose diameter is not less
than the cold water inlet coupling. The discharge must be connected
to a
sewage siphon or, if this is not possible, elevated to a distance of at least 20 mm
from the pavement to allow visual inspection;
To prevent high pressure from main water supply, install a pressure reduction
valve set to 3 bar (0.3 MPa).
1
23 1
5
6
7
1
8
3
1
9
B
C
A
4

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ECO
3.4.2 Dimensions
Thermodynamic Solar Panel
Interior Unit
Ø
200 i
250 esm
250 i/ix
300 esm
300 i/ix
500 i/ix
Obs.
Pol.
mm
mm
mm
mm
mm
mm
-
A
-
1240
1540
1540
1430
1400
2020
-
B
G ¾” M
131
99
131
102
107
102
Cold Water
C
G 1” M
-
-
231
-
236
635
Coil Outlet
D
-
-
-
435
-
436
-
Instrumentation
E
G 1” M
-
-
690
-
636
1525
Coil Inlet
F
G ½” F
-
840*
840
782*
855
782
Recirculation
G
G 1 ¼” M
-
1025
-
1096
-
1093
Magnesium Anode
H
G ½” F
905
1351
1205
1182
1065
1770
PT Valve
I
G ¾” M
1030
1477
1325
1325
1190
1937
-
J
-
Ø 580
Ø 580
Ø 580
Ø 650
Ø 650
Ø650
-
*G ¾” M
ECO 200I | ECO 250I/IX
Front hydraulic connections
ECO 250esm | 300esm/I/IX | ECO 500I/IX
Rear hydraulic connections

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ECO
3.4.3 ID Plate
Any contact with the installer or manufacturer must be accompanied by:
• Model;
• Serial number;
• Date of production.
The provision of these data will facilitate all communication and consequently a faster
and more correct response.

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ECO
3.4.4 Thermodynamic Solar Panel
The thermodynamic solar panel, responsible for the process of evaporation of the fluid, is made of
aluminium, with post-pressing anodic oxidation that gives it a black appearance.
There are two types of panels: left and right (designated by the connection side):
Left Panel Right Panel
The panels have the following pipe diameters:
• 3/8” aspiration (upper joint)
• 1/4" liquid (lower joint)
In the case of panel equipment, the refrigerant connections are of the conical threaded type (Flare
SAE):
For each panel, the elements supplied are:
1) Thermodynamic Solar Panel;
2)
Aluminium L-shaped for attachment of Thermodynamic Solar Panel (6x ou 12x);
3)
Fixing elements.
ODS (welded on the
panel)
3/8” Flare Male SAE
ODS (welded on the
panel)
1/4” Flare Male SAE
1
2
3

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ECO
3.4.5 Thermodynamic Block + Storage Water Heater
Thermodynamic Block
We call the Thermodynamic Block to the components based on a galvanized steel structure, which
contains two of the main elements for the operation of the thermodynamic cycle: compressor and
expansion valve.
On the side of the block there are 2 and 3 way valves for connection to the panel (3/8 ’’ - Aspiration;
1/4 ’’ - Liquid).
This Thermodynamic Block is coupled to the water heater through three M8 screws and connected
to the condenser, which surrounds the water heater, through two One-Shot valves.
Storage Water Heater
The domestic hot water storage heater is vertical, resting on the ground. Thermal insulation is done
by means of high density polyurethane.
The water heater had:
•Cold water inlet;
•Hot water outlet;
•Recirculation;
•Pressure and temperature valve / instrumentation;
•Magnesium anode (joint 1 1/4" F) (if applicable);
•Possibility of integrating support coil (joint 1 "M);
•Electrical heater;
•Safety thermostat;
•Temperature probe.
Liquid Accumulator
Compressor
Electronic PCB
2-Way Valve –
Thermodynamic Panel
3-Way Valve – Thermodynamic Panel
One-Shot Valve Female
Thermostatic Expansion Valve
One-Shot Valve Male

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ECO
3.4.6 Refrigerant
R134a is an HFC refrigerant, and as such, it is not harmful to the ozone layer. They have great thermal
and chemical stability, low toxicity, are not flammable and are compatible with most materials. The
following table lists the evaporation temperature with the pressure:
T (ºC)
P (bar)
T (ºC)
P (bar)
-20
0,33
20
4,70
-15
0,64
25
5,63
-10
1,00
30
6,70
-5
1,43
35
7,83
0
1,92
40
9,10
5
2,49
45
10,54
10
3,13
50
12,11
15
3,90
55
13,83
3.5 Safety and Control Devices
3.5.1 Low Pressure Switch
In case of running outside the range of pressures recommended and defined by the supplier, the
equipment will switch off and indicate error in the electronic panel.
3.5.2 Safety Thermostat
The safety thermostat is set by the supplier to ensure that the water temperature in the storage water
heater does not exceed the standard value. If the temperature exceeds this value, the thermostat
switches off the backup electrical heater. Switching on is done manually by qualified staff, after
analysing the reasons for the switch off.
3.5.3 Temperature Probe
The purpose of the temperature probe is to measure the temperature values of water in the storage
water heater in order to control the system.
3.5.4 Protection Against Corrosion (if applicable)
Besides being resistant to corrosion (stainless steel), the storage water heater has in addition a
magnesium anode that should be checked periodically according to information by the installer.
3.5.5 Dielectric Joint (enamelled boilers)
If the boiler is made of enamelled steel, the equipment contains two dielectric bushings. These
bushings prevent electrons from exchanging between the water inlet and outlet tubes and the water
heater itself. In this way, another protection against corrosion is created, which could be verified
especially in these points.
Thus, the bushings (A) must be tightened on the inlet (B) and water outlet (B) connections of the tank,
before placing the respective tubing (C).
B
C
A

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3.5.6 Expansion Vessel*
The expansion vessel is a device whose purpose is to compensate for the increase in water volume
due to temperature rise.
3.5.7 Safety Group
The safety device allows the system to be protected against anomaly situations: cold water supply,
hot water flowing back, emptying of the storage water heater and high pressure. The valve is
calibrated to activate at 0.7 MPa).
To drain the water in the storage water heater, you should close the supply valve and open the
discharge valve.
The safety valve discharge pipe must be open into the atmosphere, because the valve may drip water
or even discharge water.
The safety valve must be opened regularly to remove impurities and check that it is not blocked. The
discharge pipe must be installed in a vertical position. The discharge pipe must be installed upright
away from a cold environment.
3.5.8 Pressure Reducing Valve
The pressure reducing valve must always be installed upstream from the safety device, and ready to
activate in situations when the pressure in the circuit exceeds 3 bar (0.3MPa). This valve comes with
a pressure gauge.
*Parts not supplied by the manufacturer. They must be installed by the installer.
WANRNING
DANGER
The placement of this device is a recommended procedure for the correct installation
of the equipment.
The installation of this device is the responsibility of the installer. The absence of
this device will void the warranty. As a general rule it is installed in the cold water
pipe.
WARNING
DANGER
The placement of this device is a mandatory procedure for the correct installation
of the equipment.
The installation of this device is the responsibility of the installer. As a general rule it
is installed in the cold water pipe.
WARNING
DANGER
The installation of the pressure reducing valve must take into account the correct
direction of the hydraulic flow.
The correct direction is represented by an arrow on the component itself.
Incorrect installation poses a danger to equipment and people.