thermital TBPS KOMPACT Manual

TBPS KOMPACT
INSTALLATION AND
MAINTENANCE MANUAL

This manual, Code 20120617 - Rev. 2 (03/17) comprises 16 pages.
2
ENGLISH
RANGE
MODEL CODE
TBPS 200 KOMPACT 20119548
TBPS 300 KOMPACT 20119549
TBPS 430 KOMPACT 20119550
ACCESSORIES
For a complete list of accessories and details of their compati-
bility, refer to the Catalogue.
Dear heating engineer,
We would like to congratulate you on having recommended a
Tsolar storage cylinder unit: a modern product
that's capable of ensuring a high degree of reliability, efficien-
cy, quality and safety.
While your technical skills and knowledge will certainly be
more than sufficient, this booklet contains all the information
that we have deemed necessary for the device's correct and
easy installation.
Thank you again, and keep up the good work,
Thermital
CONFORMITY
The Tsolar heaters comply with DIN 4753-3 and
UNI EN 12897.
ENGLISH
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 INFORMATION . . . . . . . . . . . . . . . . . . . . 3
General Safety Information. . . . . . . . . . . . . . . . . . . . . . . . . . 3
Precautions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Description of the appliance . . . . . . . . . . . . . . . . . . . . . . . . 4
Safety and control devices. . . . . . . . . . . . . . . . . . . . . . . . . . 4
Identification. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
System layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
Technical specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
INSTALLATION . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Unpacking the product . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Access to the solar station . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Place of installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Installation in older systems and systems requiring
modernisation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Water quality requirements. . . . . . . . . . . . . . . . . . . . . . . . . . 8
Water connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Typical water system schematics. . . . . . . . . . . . . . . . . . . . 10
Wiring diagrams . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Electrical connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
System flushing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
System filling cock . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Device cleaning and maintenance. . . . . . . . . . . . . . . . . . . 13
COMMISSIONING AND MAINTENANCE . . . . . . . . 14
Interventions on the hydraulic system . . . . . . . . . . . . . . . . 14
Recycling and disposal . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
END USER . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Start-up. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Temporary shutdown . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Preparing for extended periods of disuse . . . . . . . . . . . . . 15
External maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

3ENGLISH
GENERAL INFORMATION
GENERAL INFORMATION
GENERAL SAFETY INFORMATION
b
Check that the product is complete, undamaged and as
ordered as soon as you receive it. Report any discrepan-
cies or damage to the Tdealer who sold it.
b
This product must be installed by a legally qualified heat-
ing engineer. On completion of the installation, the install-
er 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 Tin this instruction manual, and
that it conforms to all applicable laws and standards.
b
This product must only be used for the purpose for which
it is designed and made, as specified by T.
Tdeclines all responsibility, contractual or
other, for damage to property or injury to persons or ani-
mals caused by improper installation, adjustment, main-
tenance or use.
b
The product must be serviced at least once a year. Servic-
ing must be arranged in advance with the T
Technical Assistance Centre.
b
All servicing and repairs must be performed by a quali-
fied heating engineer.
b
If water leaks from the storage cylinder, turn off the water
supply and contact T’s Technical Assistance
Centre or a qualified heating engineer immediately.
b
If the product is not going to be used for an extended
period of time, contact the manufacturer’s Technical As-
sistance Centre to have at least the following operations
performed:
- Close the shut-off cocks for the domestic hot water cir-
cuit
- Shut down the boiler connected to the storage cylinder
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 prod-
uct. It must be kept safe and must ALWAYS accompany
the product, even if it is sold to another owner or trans-
ferred to another user or to another installation. If you
lose this manual, order a replacement immediately. Keep
the product purchase documents to be presented to the
Tauthorised Technical Assistance Centre to
request a service call under warranty.
b
Size the solar expansion tank so as to ensure complete
absorption of the expansion of the fluid contained within
the system, with reference to the prevailing regulations
on the matter. In particular, consider fluid characteris-
tics, considerable fluctuation of service temperature and
vapour that might be generated during solar collector
stagnation stage. Proper size of expansion tank ensures
setting off of all volume changes of the heat transfer fluid,
avoiding excessive pressure increase. Limited pressure
changes avoid reaching safety valve opening pressure
and the consequent fluid drainage.
PRECAUTIONS
The operation of any appliance that uses electrical power de-
mands that a number of fundamental safety precautions be
respected. In particular:
a
Never attempt to install the system without using suitable
personal protection equipment and without following all
applicable occupational safety standards.
a
It is forbidden to touch the device while barefoot or with
wet or moist body parts.
a
It is forbidden to perform any technical or cleaning op-
erations before having disconnected the device from its
electrical power supply, by setting the system's main
switch to "off".
a
It is forbidden to pull, detach, or twist the electrical ca-
bles protruding from the device, even if it is disconnect-
ed from its electrical power supply.
a
Do not expose the storage cylinder to the elements. It is
not designed for use outdoors.
a
If solar plant pressure decreases, it is forbidden to top
up with only water as there is a danger of freezing and
overheating.
a
Do not use connections or safety devices or fittings (ex-
pansion vessels, pipes, insulation) that are not specifi-
cally designed and tested for use in solar water heating
systems.
a
Do not allow children or infirm persons to operate the
system unsupervised.
a
Do not dispose of packaging material into the environ-
ment, or leave it within the reach of children, since it can
become a potential hazard. Dispose of packaging mate-
rial in compliance with applicable legislation.
a
It is forbidden to use the pipes for handling.
Generalinformation

4
ENGLISH GENERAL INFORMATION
GENERAL INFORMATION
DESCRIPTION OF THE APPLIANCE
T TBPS KOMPACT double-coil solar boilers, with
pre-fitted solar station, are available in three different mod-
els, can be integrated in solar systems for the production of
domestic hot water and can be easily used in solar systems
where Tboilers or heating groups serve as an in-
tegration.
The most important technical features of these solar storage
cylinders are:
- the accurate study of tank and coil geometry
- internal glazing, bacteriologically inert, to ensure the
max. hygiene of treated water, reduce limescale depos-
its and make cleaning operations easier
- insulation made of expanded polyurethane free from
CFC (chlorofluorocarbons)
- a flange for easy cleaning and maintenance of the an-
ti-corrosion magnesium anode
- solar station enclosed in an insulating casing in PPE
(Polypropylene foam), used also for solar system wash-
ing, filling and emptying as well as for circulator removal
The main components of the solar station are:
- high-efficiency circulator with variable speed (already
hard-wired)
- solar regulator (already hard-wired), as indicated in
paragraph "Safety and control devices"
- shut-off valves as non-return valves
- thermometers
- pressure gauge
- fitting for connection to a solar expansion tank
- suitable safety device, as indicated in paragraph "Safe-
ty and control devices"
SAFETY AND CONTROL DEVICES
Equipment safety and setting are achieved thanks to:
- Safety valve with trigger pressure set at 6 bar;
- Solar Regulator for circulator management/control.
Manages 9 system diagrams that can be selected. Re-
fer to the specific manual for further details.
IDENTIFICATION
The T TBPS KOMPACT solar heaters can be iden-
tified by:
Data plate
This lists the technical specifications and performance of
the product.
RIELLO S.p.A.
Via Ing.Pilade Riello 7
37045 Legnago (VR) - ITALY
SOLARBOILER
Modell Herstell. Nr.
Artikel Nr. Baujahr
Maximaler Boilerbetriebsdruck
Anschlussspannung
bar
V-Hz
Boilerfassungvermögen
l
T067595ED02
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
RIELLO S.p.A.
Via Ing.Pilade Riello 7
37045 Legnago (VR) - ITALY
m
2
Serial number plate
This specifies the serial number and model.
b
If these plates or any other means of clearly identify-
ing the product are defaced, removed or lost, proper
installation and servicing may be rendered difficult.

5ENGLISH
GENERAL INFORMATION
GENERAL INFORMATION
SYSTEM LAYOUT
1
7
6
5
2
4
3
9
13
11
10
1
R
2
3
M
UAC
EAF
SB
SV
VE
RB
MB
4
5
6
7
8
12
Mo
P
STORAGE CYLINDER
1 Storage cylinder
2 Top coil
3 Preset for lifting handles (accessory) and/or device
grounding point
4 Bottom coil
5 Flange for heater inspection
6 Insulation
7 Cover
P Socket
Mo Guide
UAC Domestic hot water outlet
EAF Domestic cold water inlet
SB Storage cylinder drain
SOLAR STATION
1 Return Valve (solar plant return) with built-in non-return
valve
2 Delivery Valve (solar plant delivery) with built-in non-re-
turn valve
3 Outlet temperature gauge
4 Return temperature gauge
5 Insulation
6 Solar controller
7 Display
8 Multidirectional joystick
9 Tap A for system filling/draining
10 Pump
11 Pressure gauge
12 Tap B for system filling/draining
13 Safety valve (6 bar)
M Solar circuit outlet. Inlet of heat transfer fluid coming
from solar collector.
R Solar circuit return. Outlet of heat transfer fluid towards
solar collector.
MB Heater delivery. Outlet of heat transfer fluid towards so-
lar heater.
RB Heater return. Inlet of heat transfer fluid coming from
solar heater.
SV Safety valve drain
VE Expansion tank fitting

6
ENGLISH GENERAL INFORMATION
GENERAL INFORMATION
TECHNICAL SPECIFICATIONS
DESCRIPTION
TBPS KOMPACT
200 300 430
Type of storage cylinder Verticale,Vetrificato
Heat exchanger layout Verticale a sezione ellittica
Storage cylinder capacity 208 301 442 l
Useful non-solar volume (Vbu)* 68 117 182 l
Solar usable volume (Vsol)** 140 184 260 l
Diameter of storage cylinder with insulation 604 604 755 mm
Diameter of storage cylinder without insulation - - - mm
Height with insulation 1338 1838 1644 mm
Height without insulation - - - mm
Insulation thickness 50 50 50 mm
Total net weight 86 108 131 kg
Quantity/diameter/length of magnesium anode 1/33/450 1/33/450 1/33/520 mm
Flange internal diameter 130 130 130 mm
Diameter/length of sensor sockets 18/180 18/180 18/180 mm
Top coil water capacity 3,4 4,5 6,0 l
Top coil heat exchange surface area 0,7 0,8 1,0 m2
Bottom coil water capacity 3,4 5,1 7,5 l
Bottom coil heat exchange surface area 0,7 1,0 1,4 m2
Maximum operating pressure of storage cylinder 10 bar
Maximum operating pressure of coils 10 bar
Maximum operating temperature 99 °C
Discharges according to EN 12897:2006 ∆T=45 °C
(ambient 20°C and storage at 65°C) 62 69 60 W
Discharges according to UNI 11300 1,38 1,53 1,33 W/K
Energy class B B B
PERFORMANCE RELATING TO INTEGRATION COIL
Upper coil continuous efciency (ACS 10-45°C) (Vbu reference volume)
Coil delivery temperature
80°C ∆T 20°C 16,1 23 36 kW
400 572 890 l/h
70°C ∆T 20°C 10,3 17 26 kW
247 425 655 l/h
60°C ∆T 20°C 6,5 11 16 kW
160 277 416 l/h
50°C ∆T 20°C 2,4 5 7 kW
57 130 170 l/h
Set-up time required to heat the heater to 60°C, referred to the integration coil probe, to the different upper coil inlet
temperatures with a coil outlet/inlet delta (∆) of 20°C (Vbu reference volume)
Upper coil delivery temperature
80°C ∆T 20°C 25 27 27 min
70°C ∆T 20°C 33 34 29 min
60°C ∆T 20°C 66 65 66 min
NL thermal efciency coefcient according to DIN 4708.The NL index, referred to the integration exchanger, indicates a
number of apartments having 3.5 people that can be fully supplied, with a 140 l bathtub and two other drawing points.
Upper coil delivery temperature
80°C 1,12 1,64 2,42
70°C 0,86 1,34 1,92
60°C 0,65 1,04 1,4
Vbu (*) The non-solar usable volume indicates the quantity of water (in litres) heated directly by the thermal integration coil. It
is calculated as the volume between the upper part of the heater and the lower part of the thermal integration element
(integration coil lower turn).
Vsol (**) The usable solar volume indicates the quantity of water (in litres) heated directly by the solar coil (placed in the lower
part of the heater) minus the non-solar volume (Vbu).

7ENGLISH
GENERAL INFORMATION
GENERAL INFORMATION
EMPTYING IN 10’
TBPS KOMPACT
200 300 430
PERFORMANCE RELATING TO INTEGRATION COIL
Quantity of domestic water obtained in 10’ with heater pre-heated to 60°C (*) and primary exchanger at the indicated
delivery temperature, considering an increase of the domestic water temperature of 30°C between inlet and outlet (ac-
cording to EN 12897).
Temperatura mandata serpentino superiore
80°C 166 260 330 l
70°C 138 255 323 l
60°C 131 250 308 l
PERFORMANCE RELATING TO SOLAR COIL
Quantity of domestic water obtained in 10’ with heater pre-heated to the indicated temperature (**) considering an in-
crease of the domestic water temperature of 30°C between inlet and outlet (according to EN 12897).
Temperature of accumulation tank lower part
70°C 374 438 659 l
60°C 284 375 531 l
50°C 205 310 390 l
DESCRIPTION SOLAR STATION TECHNICAL DATA
Safety valve calibration pressure 6 bar
Maximum operating temperature 110 °C
Power supply 230~50 V-Hz
Min/max electrical current draw 0,08 ÷ 0,58 A
Min/Max power consumption 5 ÷ 63 W
Pressure drops
TOP COIL
PRESSURE DROP (mbar)
400
300
200
500
100
0
0 1000 2000 3000 4000
300
200
430
FLOW RATE (l/h)
Useful head available
BOTTOM COIL
USEFUL HEAD AVAILABLE (mbar)
700
650
600
0 400200 300 500100
700
650
550
450
500
600
400
350
300
0 400 600 800 1000200 1200 1400
200
300
430
200
300
430
FLOW RATE (l/h)
Values referred to a mix of water and 30% glycol.
The circulator speed is controlled through PWM signal and var-
ies according to the thermal gradient between solar collectors
and storage.
Pay attention to the system overall load losses (exchanger, so-
lar collectors and pipes) at the maximum foreseen flow rate
conditions.

8
ENGLISH INSTALLATION
INSTALLATION
UNPACKING THE PRODUCT
T TBPS KOMPACT solar heaters are supplied in a
single package on a wooden pallet.
The boiler comes with a solar station supplied with solar reg-
ulator already wired to the high-efficiency circulator, and two
non-wired probes to be inserted in the boiler sockets.
The following items are delivered in a plastic bag inside the
packaging:
- Instruction manuals
- Bar code label
- Hydraulic test certificate
- Energy label (to be applied to device upon installation)
- No. 1 solar probe PT1000
- No. 2 probes NTC.
b
The instruction manual is an integral part of the solar stor-
age cylinder. Once located, read it thoroughly and keep
it safe.
b
For handling operations, thoroughly follow the instruc-
tions on device package label.
ACCESS TO THE SOLAR STATION
To access the solar station it is necessary to remove the solar
regulator covering (1) and then the front insulation (2).
1
2
PLACE OF INSTALLATION
T TBPS KOMPACT storage cylinders can be in-
stalled in any room where there is no specific requirement for
an electrical protection rating higher than IP X0D.
≥ 0,3 m
≥ 0,8 m
≥ 0,3 m
≥ 0,8 m
≥ 0,7 m
NOTE: the above-indicated dimensions are recommended for
a correct maintenance and access to the device.
b
When installing the boiler, allow sufficient space around
it to access all safety and control devices and to permit
easy maintenance.
INSTALLATION IN OLDER SYSTEMS AND
SYSTEMS REQUIRING MODERNISATION
When installing T TBPS KOMPACT storage cylin-
ders in old systems or systems requiring modernisation, al-
ways perform the following checks.
- Make sure that the system is fitted with safety and con-
trol devices in accordance with applicable legislation
and standards
- Make sure that the central heating circuit has been
flushed out to remove all sludge and lime scale, and
has been vented and seal tested
- Make sure that a suitable water treatment system is
installed if the quality of the supply/recirculation water
so demands (refer to the reference values listed in the
table alongside).
WATER QUALITY REQUIREMENTS
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
The values above ensure proper operation of the system. Refer
to the limit values specified in the current standards and regu-
lations on the installation site.
Installation

9ENGLISH
INSTALLATION
INSTALLATION
WATER CONNECTIONS
N
C
E
D
F
G
H
I
L
M
B
AD
UAC
MC
Psc
RL
RC
Psr
EAF
A
DF
VE
M R
190mm
100mm
DESCRIPTION
TBPS KOMPACT
200 300 430
VE Expansion tank fitting 1/2” M Ø
UAC Domestic hot water outlet 1” M Ø
MC Outlet from boiler 1” M Ø
RC Return to boiler 1” M 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 1” M Ø
Psc Diameter/length of boiler sensor socket 18/180 mm
Psr Diameter/length of solar controller sensor socket 18/180 mm
AD Quantity/diameter/length of magnesium anode 1/33/450 1/33/450 1/33/520 mm
DF Flange internal diameter 130 130 130 mm
A 1120 1420 1270 mm
B 171 171 208 mm
C 403 393 427 mm
D M8 threaded inserts for grounding point/accessory
handles connection 700 700 700 mm
E 738 903 824 mm
F 878 1113 964 mm
G 953 1233 1064 mm
H 1029 1323 1174 mm
I 1098 1438 1289 mm
L 1170 1670 1440 mm
M 1338 1838 1644 mm
N Ø 604 Ø 604 Ø 755 mm
b
It is recommended to install shut-off valves at domestic water inlet and outlet.
b
Check the efficiency of the seals when filling/refilling the storage cylinder.
b
Any electric junction between probe cable and extensions for the connection to the electric panel must be soldered and
protected with a sheath or a suitable electric insulation.

10
ENGLISH INSTALLATION
INSTALLATION
TYPICAL WATER SYSTEM SCHEMATICS
The diagram below shows the solar regulator default setting.
IMP 1
1
Please refer to the instruction manual supplied with the solar
regulator for any system setup and further details.
WIRING DIAGRAMS
CN4
CN3
M4 M3 M2 M1
321 4 5 6
CN6
F
AE
230V ~ 50Hz
ANGD U1U2 NL (B)(A)(S6)S4(S5)S3S2S1
S1 S2 S3 CS4
AE Power supply (connections to be made by the
installer)
S1 Collector 1 temperature probe (connections to
be made by the installer)
S2 Storage system lower temperature probe (con-
nections to be made by the installer)
S3 Storage system upper temperature probe (con-
nections to be made by the installer)
S4 Option probe (not supplied)
M1-M4 Terminal strip
C Pump
CN6 PWM connector
F Cable guide
ELECTRICAL CONNECTIONS
b
The following is mandatory:
- have an omnipolar magneto-thermal circuit breaker
and a disconnecting switch compliant with the prevail-
ing standards of the installation country
- respect the polarity of the L1 (Phase) - N (Neutral) con-
nections
- use cables with insulation and cross section conform-
ing to applicable standards (minimum cross section 1.5
mm2)
- refer to the wiring diagrams in this manual for all electric
operations
- make sure the appliance is connected to an efficient
ground (earth).
a
It is strictly forbidden to use pipes of any kind to ground
the appliance.
The manufacturer is not responsible for any damage
caused by failure to earth connect the device and failure to
comply with what is indicated in the wiring diagrams.
Refer to the manual supplied with the solar controller for
details of all electrical connections, programming, etc..
The solar regulator is provided already wired except for the
power supply cable and the temperature probes.
To make electrical connections, undo screw (1) on cover and
remove cover from solar regulator.
1
P

11 ENGLISH
INSTALLATION
INSTALLATION
1
234
5
0 6
FPs Pa
Is Ia
CN3
CN4
CN6
321 4 5 6
Psc
Psr
Ua
C
S1
Us
C
C Cable duct (not supplied)
Sensor connections
- Route probe cables through the cable guides (F), the
fairleads (Ps), the passages on the insulation (Is), the
solar station outlets (Us/Ua) and connect them to termi-
nal board M4 of solar regulator (terminals S1-S2-S3-S4)
making reference to the instructions provided in the
specific regulator manual.
Upon connection, or should it be necessary to increase probe
cable length, refer to these remarks:
- Absolutely avoid laying probe cable together with
mains power cables and/or AC cables
- Absolutely avoid routing cables close to strong mag-
netic fields
- Avoid any cable jointing as much as possible; solder
and duly insulate any indispensable jointing
- Use twisted and shielded wires
- Use cables having a cross-section of over 0.5 mm2
Solar controller power connections
- Route the supply cable through the cable guides (F),
the fairleads (Pa), the passages on the insulation (Ia),
the solar station outlets (Ua) and connect it to terminal
board M1 of solar regulator (terminals L-N-GND) mak-
ing reference to the instructions provided in the specific
regulator manual.
Once electrical connections are completed, fasten cables us-
ing the guides supplied, close regulator cover and solar sta-
tion protection housing.

12
ENGLISH INSTALLATION
INSTALLATION
SYSTEM FLUSHING
Before filling the system with mixture of water and glycol, it is
necessary to flush the pipes of the solar system to eliminate all
residues of fluid or scale.
Proceed as follows.
- Turn handle on valve (VR) clockwise
- Open taps (A) and (B) on the return tube
- Flush water in through the cock (B) and wait for it to
come out of the cock (A)
- Allow water to come out for at least 30 seconds
- Turn handle on valve (VR) counter clockwise
- Close taps (A) and (B).
b
During system flushing, pay attention to water coming
out of the taps as vapour could be released with risk of
burns or scalds. Use suitable personal protective equip-
ment.
VRVM
B
90°
0°
VR
90°
0°
VM
Position of the knob of the
valves VM - VR
Flow in single
direction
(non-return valve
function)
Flow
stopped
A
b
If copper piping has been used and joints have been hot
brazed, flush out the system to remove any brazing res-
idues. Seal test the system after you have flushed it out.
b
The solar circuit must be immediately filled with a mixture
of water and glycol, that avoids freezing and corrosion.

13 ENGLISH
INSTALLATION
INSTALLATION
SYSTEM FILLING COCK
Before filling the system:
- Cut power off to the solar station and to the connected
integration system, by setting the system's main switch
and the device's main switch to OFF
b
Always use a mixture of water and glycol suitable for
solar applications. Choose the mixture according to the
minimum temperature that can be reached at the instal-
lation site and to the maximum service temperature of
solar collectors. For further information, please refer to
the glycol safety data sheet.
When using glycol not pre-mixed:
- Do NOT part fill the circuit with pure glycol then add
water later.
- Ensure that filling water characteristics comply with pre-
vailing regulations; if that is not so, filling water must be
treated. Use portable treatment systems, for instance.
In particular, when chlorine content is very high (>
50ppm) you must use distilled water for the mixture.
B
VM
A
VR
Mixture
of glycol
and water
PC
PC Heat transfer fluid filling pump
To fill the system, proceed as follows:
- Connect the filling pump (PC) as shown
- Turn handle on valve (VR) clockwise
Open taps (A) and (B) on the return tube
- Open manual degassing tap and any bleeder valve,
located at the highest points of the system, and keep
them open throughout the filling procedure.
- Pump the heat transfer fluid around the circuit with an
external filling pump until all air bubbles have been
eliminated. Close the manual bleed valve and any vent
valves opened previously.
- Turn handle on valve (VR) counter clockwise
- Temporarily raise the pressure in the system to 4 bar.
- Start up the system for about 20 minutes.
- Repeat air bleeding operation until system is complete-
ly free of air bubbles.
- set the system pressure.
- Close taps (A) and (B).
b
The set pressure must ensure that the one measured at
the solar collectors is positive with respect to the ambient
one (avoid depression in the solar field) and must be set
considering both the safety valve opening pressure (6)
and the solar expansion reservoir pre-charge pressure.
To set the system pressure correctly, refer to the design
manual.
a
Do not fill the system in bright, sunny conditions or if the
collectors are hot.
b
Use a manual bleed valve, which should be installed at
the highest point in the system, to ensure that all air bub-
bles have been eliminated from the circuit.
DEVICE CLEANING AND MAINTENANCE
b
Service the system at least once a year and carry out the
inspections specified in the relevant manual.
The following operations must be exclusively performed by
Technical Assistance Centre.
Checking the seals
After commissioning, check hydraulic fitting sealing. Make
sure there is no leakage close to electric components to avoid
short-circuits.
External cleaning
Clean the outside of the storage cylinder with a soft cloth
damped in soapy water.
Use a dry rag to clean the insulation and the solar regulator
display to remove any dust.
a
Do not use abrasive products, petrol or triethylene.

14
ENGLISH COMMISSIONING AND MAINTENANCE
COMMISSIONING AND MAINTENANCE
INTERVENTIONS ON THE HYDRAULIC
SYSTEM
Draining the system
- Connect a rubber hose to taps (A) and (B)
- Connect the opposite end to a vessel
- Open system drain taps and allow full drainage
- Close system drain taps and remove the rubber hose
- The exhausted heat transfer fluid must be disposed of
according to the prevailing regulations, pursuant to the
instructions provided in the safety data sheet supplied
with the glycol.
Disassembling the circulator
b
Remove the circulator when system has cooled down.
Before removing circulator (C):
- Cut power off to the solar station and to the connected
integration system, by setting the system's main switch
and the device's main switch to OFF
- Disconnect circulator power by removing connectors
(D) and (E)
- Move away any wiring and electric devices below to
protect them against any leakage of heat transfer fluid
- Close valves (VR) and (VM) by turning handle clock-
wise by 90°
- Open taps (A) and (B) and drain the solar circuit
- Loosen ring nuts (H1) and (H2) and remove circulator
(C).
C
H2
H1
B
VM VR
E
D
A
Reverse the above steps to fit the new pump.
Fill the solar circuit as described in paragraph "System filling
cock".
RECYCLING AND DISPOSAL
The device is primarily composed of:
Material Component
steel structural work
metal materials tubes, circulator
ABS (acrylonitrile-butadi-
ene-styrene)
solar regulator casing, cover-
ing and covers
PPE (polypropylene foam) solar station insulation
PU (polyurethane) boiler insulation
synthetic rubber pipe insulation
electrical and electronic
components
cables and wiring, solar
regulator, circulator
At the end of the device's useful life, these components must
be separated and disposed of according to current regula-
tions in the country of installation.
Commissioningandmaintenance

15 ENGLISH
END USER
END USER
END USER INSTRUCTIONS
Refer to the GENERAL SAFETY INFORMATION and PRECAUTIONS section for safety-related information.
START-UP
The heater commissioning must be performed by Technical
Assistance Centre personnel.
Under certain circumstances, such as after long periods of
disuse, the user may need to re-start it without involving the
Technical Assistance Centre. Before doing so, perform the fol-
lowing checks and operations.
- Check that the supply cocks in the domestic water cir-
cuit are all open
- Check that the system main switch and the control main
switch are active "ON".
b
For further information concerning the solar regulator, re-
fer to the dedicated manual supplied with the product.
Enduser
TEMPORARY SHUTDOWN
To reduce to the environmental impact and save energy, in
case of brief absences, week-ends, short trips, etc., and with
external temperatures above 0°C, set the heater temperature
control, where available, to the minimum value.
b
If the temperature to which the heater is exposed can
fall below 0°C (frost hazard), perform the operations de-
scribed in paragraph "Preparing for extended periods of
disuse".
PREPARING FOR EXTENDED PERIODS
OF DISUSE
If the storage cylinder is not going to be used for an extended
period of time, ask the manufacturer’s Technical Assistance
Centre to make the system safe.
EXTERNAL MAINTENANCE
Clean the outside of the storage cylinder with a soft cloth
damped in soapy water.
Use a dry rag to clean the insulation and the solar regulator
display to remove any dust.
a
Do not use abrasive products, petrol or triethylene.

20120617 - Rev. 2 (03/17)
Via Mussa, 20 Z.I.
35017 - Piombino Dese (PD)
www.thermital.it
The manufacturer strives to continuously improve all products. Appearance, dimensions, technical
specications, standard equipment and accessories are therefore liable to modication without notice.