thermital SUNDAY 200 SOL Manual

SUNDAY 200 SOL
INSTALLATION AND
MAINTENANCE MANUAL

2
ENGLISH
GENERAL
MODEL CODE
SUNDAY 20/200 SOL 20105840
SUNDAY 30/200 SOL 20105841
CONFORMITY
RANGE
SUNDAY 200 SOL boilers conform to the following directives:
• Gas Appliances Directive 2009/142/CE
• Boiler Efficiency Directive 92/42/CEE (HHHH)
• Electromagnetic Compatibility Directive 2014/30/EU
• Ecodesign Directive 2009/125/CE for energy-related products
• Low Voltage Directive 2014/35/EU
• Energy Labelling Directive 2010/30/EU
• Delegated Regulation (UE) N. 811/2013
• Delegated Regulation (UE) N. 813/2013
• Delegated Regulation (UE) N. 814/2013
• BS EN 677 Gas-fired central heating boilers;
specific requirements for condensing boilers with a nominal heat input not exceeding 70 kW
SUNDAY 200 SOL boilers therefore bear the CE mark.
RANGE RATED
This boiler is RANGE RATED. That means it is fitted with a device that adjusts its heat output to suit the requirements
of the heating system and therefore the thermal energy needs of the building.
See the “Settings” section for information on system calibration.
ACCESSORIES
For a complete list of accessories and details of their compatibility, refer to the Catalogue.

3
ENGLISH
GENERAL
Dear heating engineer,
Congratulations on having chosen a THERMITAL boiler. You have selected a modern, quality pro-
duct that is designed to give dependable, efficient and safe service and to provide comfort in the
home for many years to come. This manual provides information that is essential to the installation
of the appliance. Used in conjunction with your own knowledge and expertise it will enable you to
install the appliance quickly, easily, and correctly.
Once again, please accept our thanks and our congratulations on your choice of product.
THERMITAL

4
ENGLISH
CONTENTS
This manual, Code 20105337 - Rev. 1(04/17) is made
up of 60 pages.
The following symbols are used in this manual:
b = Identifies actions that require caution and ade-
quate preparation.
a = Identifies actions that you MUST NOT do.
CONTENTS
General
General safety information " 5
Precautions " 5
Product description " 6
Safety devices " 7
Identification " 8
Layout " 9
Technical specifications " 10
Water circuit " 12
Location of sensors " 13
Pumps " 14
Wiring diagram " 18
Control panel " 19
Installer
Unpacking the product " 21
Dimensions and weight " 21
Handling " 22
Place of installation " 23
Installation in older systems and systems requiring
modernisation " 24
Water in central heating systems " 24
Water connections " 27
Electrical connections " 29
Outdoor temperature sensor " 31
Fuel connections " 32
Flue gas outlet and comburent air intake " 32
Filling and draining the system " 36
Technical assistance service
Preparing for initial start-up " 39
Initial start-up " 39
Shutdown " 43
Warning leds and errors " 44
Automatic temperature control " 45
Settings " 47
Conversion from one gas type to another " 50
Maintenance " 51
Troubleshooting " 54

5
ENGLISH
GENERAL
b As soon as you open the packaging, check imme-
diately that the contents are all present and undam-
aged. Contact the reseller from whom you pur-
chased the product if you notice any problems.
b This system must be installed by a legally qualified
heating enginee. On completion of the installation,
the installer must issue the owner with a declaration
of conformity confirming that the installation has
been completed to the highest standards in compli-
ance with the instructions provided in this instruc-
tion manual, and that it conforms to all applicable
laws and standards.
b This SUNDAY 200 SOL boiler must be used only
for the proper purpose for which it is designed and
made. The manufacturer declines all responsibil-
ity, contractual or other, for damage to property or
injury to persons or animals caused by improper
installation, adjustment, maintenance or use.
b If you notice any water leaking from the boiler, dis-
connect it immediately from the mains electricity
supply, shut off the water supply, and notify your
local Technical Assistance Centre or a qualified
heating engineer immediately.
b Periodically, and when the system is cold, check
that operating pressure in the heating circuit is
between 1 and 1.2 bar. If water pressure is consist-
ently low, contact Technical Assistance Service or a
professionally qualified heating engineer.
b If the boiler is not going to be used for an extended
period of time, proceed as follows to prepare it for
shutdown.
- Turn the mains power switch OFF.
- Close the boiler’s fuel cock and water cock.
- Drain the central heating circuit if there is any risk
of freezing.
b The boiler must be serviced at least once a year.
b If the boiler is destined to heat low temperature
(under-floor) heating systems, it must be fitted with
an accessory mixer valve kit.
b This instruction manual is an integral part of the
boiler. It must be kept safe and must ALWAYS
accompany the boiler, even if it is sold to another
owner or transferred to another user or to another
installation. If you damage or lose this manual,
order a replacement immediately from your local
Technical Assistance Centre.
Observe the following precautions to ensure safe opera-
tion of the boiler.
a Do not allow children or infirm persons to operate
the boiler unsupervised.
a Do not operate any electrical devices or equip-
ment, including switches or domestic appliances,
etc., if you can smell fuel or fumes. If you detect any
suspicious smells:
- Ventilate the room by opening all doors and win-
dows.
- Close the fuel shut-off cock.
- Report the fault immediately to Technical
Assistance Service or to a professionally quali-
fied heating engineer.
a Do not touch the boiler when barefoot or wet.
a Never clean or service the boiler without first dis-
connecting it from the mains electricity supply by
turning the mains switch OFF.
aDo not tamper with or adjust the safety or control
devices without prior authorisation and instructions
from the boiler’s manufacturer.
a Never pull, disconnect, or twist the electrical cables
coming from the boiler even if it is disconnected
from the mains electricity supply at the time.
a Do no obstruct or restrict the vents in the room
where the boiler is installed. Adequate ventilation is
essential for correct combustion.
a Do not expose the boiler to the elements. It is not
designed for use outdoors.
a Do not switch the boiler off if outside temperature
drops below ZERO (risk of freezing).
a Do not store containers of flammable substances in
the room where the boiler is installed.
a Do not dispose of packaging material into the
environment, or leave it within the reach of children,
since it can become a potential hazard. Dispose of
packaging material in compliance with applicable
legislation.
GENERAL SAFETY INFORMATION
PRECAUTIONS

6
ENGLISH
GENERAL
SUNDAY 200 SOL boilers are high efficiency, low tem-
perature boilers for the production of hot water for central
heating and domestic hot water systems. They incorpo-
rate a 200 litre double coil solar storage cylinder and are
equipped as standard with a water return group for use
in conjunction with solar panels. SUNDAY 200 SOL boil-
ers incorporate a low water content, low pressure drop,
compact, monobloc, aluminium heat exchanger, and a
premixed microflame burner controlled by an electronic
control panel, all enclosed within a robust free-standing
casing. They feature sealed combustion chambers and,
depending on what flue accessories are fitted, can be
classed as B23P, B53P, C13, C23, C33, C43, C53, C63, or
C83 appliances. The fan extracts flue gases and aspirates
comburent air from outdoors, and is continuously con-
trolled by the electronic control card.
The characteristics of the heat exchanger and burner
ensure an excellent level of performance.
The combustion chamber and the heat exchange area
are designed to keep temperature low over the burner
surface, thus minimising emissions, maximising combus-
tion efficiency and improving ignition reliability.
SUNDAY 200 SOL boilers come complete with safety
valves, vent and bleed valve, expansion vessels, drain
cocks, system fill cock and pumps for the central heating
circuit, storage cylinder and solar collector circuit.
More than one high or low temperature zone can be
heated, with the addition of the relevant multi-zone
accessories. See the THERMITAL catalogue for details.
The main technical characteristics of SUNDAY 200 SOL
boilers are:
- electronic burner ignition and ionisation flame control
- continuous electronic flame modulation for domestic
hot water and central heating water
- microprocessor control card for input and output control
and alarm management
- pneumatic control of air-gas ratio
- 3-way valve with electric actuator
- thermostatic valve
- water pressure switch
- digital display for temperature and error codes
- buttons for OFF-reset, alarm reset, and comfort func-
tions
- domestic hot water and central heating water tempera-
ture controls
- system filling cock
- central heating circuit pressure gauge
- 8 litre domestic hot water circuit expansion vessel
- 12 litre central heating circuit expansion vessel
- 18 litre solar circuit expansion vessel
- DC fan controlled by Hall effect speed sensor
- high head pump fitted as standard
- automatic bypass for central heating circuit
- 2 NTC sensors for control of flow and return tempera-
tures
- central heating flow temperature range adjustable
between 20 and 80°C
- 200 litre double coil solar storage cylinder
- water return group complete with flow regulator, solar
circuit fill/drain cocks and non-return valve
- solar controller for control of solar circuit and domestic
hot water production.
PRODUCT DESCRIPTION

7
ENGLISH
GENERAL
The boiler is fitted with the following safety devices:
- autodiagnostics with display of error codes
- microprocessor control and display of NTC sensor
continuity
- 3-way valve anti-block function, activated automatically
after 24 hours from last movement
- pump anti-block function, activated automatically for 30
seconds, 24 hours after last pump cycle
- ionisation flame control device for shutting off gas sup-
ply in case of flame failure
- pressure transducer to prevent ignition in case of low
water pressure (with error display)
- maximum temperature thermostat to detect overheating
and ensure the safety of the entire system (with error
display requiring reset by OFF-RESET button)
- flue gas temperature sensor to shut down the burner if
flue gas temperature exceeds the safety threshold
- condensate drain siphon with float system to prevent
the escape of fumes
- condensate level sensor to shut down the burner if the
condensate level in the heat exchanger exceeds the
safety threshold
- flue gas venting safety system incorporated in the
pneumatic functioning system of the gas valve
- overtemperature diagnosis with double sensor on
central heating flow and return (temperature threshold
85°C)
- fan control with Hall effect speed sensor: fan speed is
continuously monitored
- first level of frost protection (for indoor systems) func-
tional even with the boiler in standby, activated when
water temperature drops below 7°C
- 3 bar central heating circuit safety valve.
- 8 bar domestic hot water circuit safety valve
- 6 bar solar circuit safety valve
- diagnosis of primary heat exchanger with cleaning
needed display
- circulation diagnosis by comparison of readings of cen-
tral heating flow and return temperature sensors
- solar collector/storage cylinder cooling protection
- solar circuit pump anti-block function.
b The intervention of a safety device indicates a
potentially dangerous malfunction in the sys-
tem, and means that you must contact Technical
Assistance Service immediately.
a Never start the boiler up even for a short period if
the safety devices are not functioning correctly or
have been tampered with.
b Safety devices must only be replaced by Technical
Assistance Service using original spare parts.
Always check that the boiler is functioning correctly after
any repairs.
SAFETY DEVICES

8
ENGLISH
GENERAL
IDENTIFICATION
SUNDAY 200 SOL boilers are identified by two plates:
b If these plates or any other means of clearly identifying the product are defaced, removed or lost, proper installation
and servicing may be rendered difficult.
- Data plate
This lists the appliance’s technical specifications and performance data.
- Gas plate
This is applied near the data plate and specifies the type
of gas used by the boiler, and the country in which the
boiler is destined for use.
European Directive
92/42/EEC:
η =
N°
230 V ~ 50Hz W
Pms= bar T = °C
Pmw= bar T = °C
D = l/min
Qn(min)=
Pn(min)=
NOx:
/
IP P.nom.G20= mbar
Qn(max=
Pn(max)=
Cod.
kW
kW
kW
kW
kW
kW
kW
kW
Categoria:
Categorie:
Kategorie:
Combustible:
Brennstoff:
Combustibile:
Brandstof:
KESSEL GEREGELT FÜR:
CALDAIA REGOLATA PER: CHAUDIERE REGLEE POUR:
VERWARMINGSKETEL INGESTELDOP:
Caldaia a condensazione - Chaudière à condensation
Brennwertkessel - Condenserende verwarmingsketel
T067752GE
T067752GE
RIELLO S.p.A.
Via Ing. Pilade Riello, 7
37045 - Legnago (VR)
www.thermital.it
European Directive
92/42/EEC:
η =
N°
230 V ~ 50Hz W
Pms= bar T = °C
Pmw= bar T = °C
D = l/min
Qn(min)=
Pn(min)=
NOx:
/
IP P.nom.G20= mbar
Qn(max=
Pn(max)=
Cod.
kW kW kW kW
kW kW kW kW
Categoria: Categorie: Kategorie:
Combustible:
Brennstoff: Combustibile:
Brandstof:
KESSEL GEREGELT FÜR:
CALDAIA REGOLATA PER: CHAUDIERE REGLEE POUR:
VERWARMINGSKETEL INGESTELD OP:
Caldaia a condensazione - Chaudière à condensation Brennwertkessel - Condenserende verwarmingsketel
Via Mussa, 20 Z.I.
35017 Piombino Dese (PD)
ITALY
T067752GE
T067752GE
- Serial number plate
This is located on the base of the boiler and specifies
the serial number, model, furnace power, and maxi-
mum operating pressure.
Data plate
Domestic hot water section
Central heating section
Qn Rated heat input
Pn Rated useful heat output
IP Index of protection
P.min Minimum pressure
Pmw Maximum operating pressure,
DHW system
Pms Maximum operating pressure,
CH system
T Temperature
η Efficiency
D Specific flow rate
NOx
NOxclass
European Directive
92/42/EEC:
η =
N°
230 V ~ 50Hz W
Pms= bar T = °C
Pmw= bar T = °C
D = l/min
Qn(min)=
Pn(min)=
NOx:
/
IP P.nom.G20= mbar
Qn(max=
Pn(max)=
Cod.
kW
kW
kW
kW
kW
kW
kW
kW
Categoria:
Categorie:
Kategorie:
Combustible:
Brennstoff:
Combustibile:
Brandstof:
KESSEL GEREGELT FÜR:
CALDAIA REGOLATA PER: CHAUDIERE REGLEE POUR:
VERWARMINGSKETEL INGESTELDOP:
Caldaia a condensazione - Chaudière à condensation
Brennwertkessel - Condenserende verwarmingsketel
T067752GE
T067752GE
RIELLO S.p.A.
Via Ing. Pilade Riello, 7
37045 - Legnago (VR)
www.thermital.it
RIELLO S.p.A.
Via Ing. Pilade Riello, 7
37045 - Legnago (VR)

9
ENGLISH
GENERAL
LAYOUT
1
2
4
5
6
8
9
7
10
11
12
13
14
15
16
17
18
3
19
20
22
23
25
26
27
21
27
28
30
31
32
17
35
36
37
38
33
29
34
20
40 60 80
100
4
321
0
0120
18
42
16
15
13
12
11
7
41
43
9
8
6
3
5
26
39
28
27
40
41
20
26
26
3
9
1 Cover panel
2 Top front panel
3 Automatic vent valve
4 Bleed manifold
5 Water pressure switch
6 Deviator group drain cock
7 Deviator valve
8 CH/storage cylinder pump
9 CH circuit fill cock
10 Bottom front panel
11 DHW thermostatic mixer valve
12 Solar circuit non-return valve
13 Solar circuit pump
14 Storage cylinder temperature sensor socket
(top)
15 Flow regulator
16 Storage cylinder temperature sensor socket
(bottom)
17 200 litre storage cylinder
18 Storage cylinder drain cock
19 DHW circuit expansion vessel (8 litres)
20 DHW circuit safety valve (8 bar)
21 CH circuit drain cock
22 Drain collector pipe
23 Solar circuit safety valve (6 bar)
24 Electrical cable guides
25 CH circuit safety valve (3 bar)
26 Manual bleed valve
27 Vent/air intake fitting (concentric 60/100)
28 CH circuit expansion vessel (12 litres)
29 Combustion group
30 Solar circuit expansion vessel (18 litres)
31 Control panel
32 Gas diaphragm
33 Capillary pressure gauge fitting
34 Solar controller
35 DHW capillary temperature gauge fitting
36 Magnesium anode
37 LH side panel
38 Storage cylinder flange
39 Comburent air intake pipe (twin pipe)
40 Flue gas analysis socket
41 Gas valve
42 RH side panel
43 Solar circuit pressure gauge

10
ENGLISH
GENERAL
TECHNICAL SPECIFICATIONS
Descrizione SUNDAY
20/200 SOL 30/200 SOL
Device type
condensing boiler for mixed heating
"B23P-B53P-C13-C13x-C23-C33-C33x-
C43-
C43x-C53-C53x-C63-C63x-C83-C83x"
Fuel G20-G31
Device category II 2H3P
Furnace heat output ref. PCS (PCI) 22,7 (20,4) 33,2 (30) kW
Furnace heat output ref. PCS (min.) 3,9 (3,5) 6,7 (6) kW
Useful heat output (nominal) 20 29 kW
Rated heat output 60-80°C (P4) 19,6 29,1 kW
Useful heat output max. (50-30°) 21,1 31,6 kW
Rated heat 30% return 30°C (P1) 3,5 5,3 kW
Reduced heat output at 50-30°C 3,8 6,5 kW
Reduced heat output at 80-60°C 3,4 5,9 kW
Heat energy efficiency class A A
Energy efficiency class DHW A A
Seasonal energy efficiency in central
heating mode ηs93 93 %
Efficiency at rated heat input in high
temperature mode (HCV) η4Useful Pn (60-
80°C) 88,1 87,3 %
Efficiency at 30% rated heat input in
low temperature mode (HCV) η1Useful 30% of
Pn 98,7 98,4 %
Energy efficiency in DHW mode ηwh 81 81 %
Storage cylinder charging profile XL XL
Heat loss in standby mode Pstby 196 291 W
Combustion efficiency 97,4 97 %
Annual energy consumption QHE 36 55 GJ
Daily electrical power consumption Qelec 0,338 0,346 kWh
Annual electrical power consumption AEC 74 76 kWh
Daily fuel consumption Qfuel 23,8 23,8 kWh
Annual fuel consumption AFC 18 18 GJ
Noise (sound power) LWA 50 52 dB(A)
Emissions at maximum heat input
NOx(referred to HCV) 56 56 mg/kWh
CO29 9 %
CO s.a. 150 190 ppm
∆t flue gas 63 82 °C
Emissions at minimum heat input
NOx (referred to HCV) 48 48 mg/kWh
CO29,5 9,5 %
CO s.a. 15 25 ppm
∆t flue gas 56 58 °C
Residual head, concentric pipes, 0.85 m Ø 60-100 80 50 Pa
Air flow rate (G20) 25 37,5 Nm3/h
Flue gas flow rate (G20) 27 40,5 Nm3/h
Flue gas mass flow rate(*) 0,009 - 0,002 0,014 - 0,003 Kg/s
Maximum operating pressure 3 3 bar
Safety thermostat trip temperature 110 110 °C
Maximum operating temperature 90 90 °C
Boiler water temperature selection range (± 3°C) 20-45/40-80 20-45/40-80 °C
Boiler water capacity 8 9 l
Volume of CH circuit expansion vessel 12 12 l
Precharge of CH circuit expansion vessel 1,5 1,5 bar
Power supply 230-50 230-50 V-Hz
Index of protection Installation type B X4D X4D IP
Installation type C X5D X5D IP
Absorbed power supply (max) 155 155 W

11
ENGLISH
GENERAL
Descrizione SUNDAY
20/200 SOL 30/200 SOL
At full load Elmax 42 42 W
At partial load Elmin 14 15 W
Standby PSB P sb 4 4 W
(*) Calculated with one 90° curve, 24 x 1 metre extensions and a 1 metre horizontal collector.
Descrizione SUNDAY
20/200 SOL 30/200 SOL
Type of storage cylinder Vitrified
Cylinder layout Vertical
Heat exchanger layout Vertical
Maximum power absorbed by top heat exchanger 20 kW
Maximum power absorbed by bottom heat exchanger 29 kW
Storage cylinder capacity 30-65 °C
Heat exchanger surface area 200 l
Useful non-solar volume (Vbu) 100 l
Top coil water capacity 4,1 l
Bottom coil water capacity 5,7 l
Top coil heat exchange surface area 0,68 m2
Bottom coil heat exchange surface area 0,94 m2
DHW production ∆T 25°C 11,1 12,4 l/min
∆T 35°C 7,7 8 l/min
Water draw in 10 minutes with storage
cylinder at
48°C (**) 151,7 163 l
60°C (**) 181,3 215 l
Specific flow rate (EN625) 21,2 22,3 l/min
Maximum operating pressure of storage cylinder 8 bar
Volume of expansion vessel (DHW) 8 l
Precharge of expansion vessel (DHW) 3,5 bar
(**) Specified data must not be used to certify the system. Certificates must state the values listed in the “System Service
Booklet” as measured on initial start-up.
Descrizione SUNDAY
20/200 SOL 30/200 SOL
Function parameters for G20
Lower Wobbe index (at 15°C - 1013 mbar) 45,67 MJ/m3s
Rated supply pressure 20 mbar
Minimum supply pressure 10
Gas diaphragm 4,6 6,7 mm
Maximum gas flow rate, DHW/CH 2,12 3,17 Sm3/h
Minimum gas flow rate, DHW/CH 0,37 0,63 Sm3/h
Maximum fan speed DHW/CH 6100 6000 rpm
Minimum fan speed 1700 1600 rpm
Burner ignition slow fan speed 3700 3400 rpm
Function parameters for G31
Lower Wobbe index (at 15°C - 1013 mbar) 70,69 MJ/m3s
Rated supply pressure 37 mbar
Minimum supply pressure 35
Gas diaphragm 3,6 4,7 mm
Maximum gas flow rate, DHW/CH 1,55 2,33 Sm3/h
Minimum gas flow rate, DHW/CH 0,27 0,47 Sm3/h
Maximum fan speed DHW/CH 6100 6000 rpm
Minimum fan speed 1700 1600 rpm
Burner ignition slow fan speed 3700 3400 rpm

12
ENGLISH
GENERAL
2
04
bar
1 3
CH flow
CH flow
Solar circuit outlet
Solar circuit outlet
GAS
1
DHW outlet
Cold water inlet
13
23
24
16
20
21
17 22
18
32
33
6
2 3 10
12
9
9
9
9
7
8
37
25
26
27
28
29
27
36
35
22
15
19
31
30
14
11
4
5
34
1 Primary heat exchanger
2 CH flow temperature sensor
3 Safety thermostat
4 Fan
5 Gas valve
6 CH return temperature sensor
7 Condensate drain siphon
8 Sealed chamber
9 Drain
10 Bleed manifold
11 Automatic vent valve
12 Manual bleed valve
13 CH circuit expansion vessel (12
litres)
14 CH/storage cylinder pump
15 CH circuit drain cock
16 Deviator group
17 Deviator valve
18 Water pressure switch
19 Deviator group drain cock
20 Deviator group safety valve (3 bar)
21 Automatic bypass
22 Non-return valve
23 Solar circuit expansion vessel (18 litres)
24 Solar circuit pressure gauge
25 Solar circuit pump
26 Flow regulator
27 Solar circuit filling and drain cocks
28 Storage cylinder drain cock
29 200 litre storage cylinder
30 DHW circuit expansion vessel (8
litres)
31 DHW thermostatic mixer valve
32 DHW circuit safety valve (8 bar)
33 CH circuit fill cock
34 Solar circuit safety valve (6 bar)
35 Magnesium anode
36 Storage cylinder flange
37 Gas diaphragm
WATER CIRCUIT

13
ENGLISH
GENERAL
LOCATION OF SENSORS
20
40 60 80
100
4
321
0
0120
20
40 60 80
100
4
321
0
0120
NTC CH FLOW
TEMPERATURE SENSOR
(located on CH circuit
flow pipe inside sealed
chamber)
NTC CH RETURN
TEMPERATURE SENSOR
(located on CH circuit
return pipe inside sealed
chamber)
CENTRAL HEATING
TEMPERATURE GAUGE
SENSOR
SAFETY THERMOSTAT
(located on CH circuit
flow pipe inside sealed
chamber)
NTC FLUE GAS
TEMPERATURE SENSOR
CONDENSATE SENSOR
(located inside sealed chamber)
NTC STORAGE
CYLINDER
TEMPERATURE
SENSOR (bottom)
NTC STORAGE
CYLINDER
TEMPERATURE
SENSOR (top)
STORAGE
CYLINDER
TEMPERATURE
GAUGE SENSOR

14
ENGLISH
GENERAL
0
1
2
3
4
5
Q [m³/h]
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6 2,8 3,0 3,2 3,4
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4
Q [m³/h]
6
7
[m]
H
0
10
20
30
40
50
60
[kPa]
p
0,0 0,1 0,2 0,3 0,4 0,5 0,60,7 0,80,9 1,0 Q [l/s]
0
10
20
30
40
50
[W]
P1
RESIDUAL HEAD
FLOW RATE
CENTRAL HEATING SYSTEM/ STORAGE CYLINDER PUMP CURVE
PUMPS
TECHNICAL SPECIFICATIONS CENTRAL HEATING SYSTEM/ STORAGE CYLINDER
DESCRIPTION ERP ready 2015
Electrical consumption 53 W
EEI Part 3 (*) ≤ 0,20
P L,Avg (**) ≤ 24 W
Minimum pressure at pump suction inlet 0,5 bar
(*) Energy efficiency index according to ERP 2015 (Commission regulations 641/2009 and 622/2012)
(**) Average annual electricity consumption according to ERP 2015 (Commission regulations 641/2009 and 622/2012)
Curves are referred to a water density of 983.2 Kg/m3, a temperature of +20°C, and a kinematic
viscosity of 0.474 mm2/s (0.474 cSt).

15
ENGLISH
GENERAL
Display Meaning % power
LED 1 flashing green Stand-by (only
with PWM control)
0
LED 1 green and LED 2
yellow, both lit
Low load 0-25
LED 1 green and LEDs
2, 3 yellow, all lit
Low-medium load 25-50
LED 1 green, LEDs 2,
3, 4 yellow, all lit
Medium-high load 50-75
LED 1 green, LEDs 2,
3, 4, 5 yellow, all lit
High load 75-100
PUMP LOAD CURVE
100 %
75 %
50 %
25 %
Functioning mode
A) Performance display
When the pump is functioning, LED 1 is green. The four
yellow LEDs indicate the instantaneous power draw as
shown in the table above. In functioning mode, all active
LEDs are lit (not flashing) to differentiate this condition from
setting mode. If the pump is stopped by the external con-
trol signal, LED 1 flashes green.
B) Alarm display
If the pump detects one or more alarm conditions, LED 1
changes from green to red. When an alarm is active, the
LEDs indicate the type of alarm as shown in the following
table. If more than one alarm is active at the same time, the
LEDs only show the alarm condition with the highest prior-
ity. Alarm priority follows the order of the table.
When no alarm is active, the user interface automatically
displays pump performance.
ADJUSTING THE PUMP
The boiler's pump is ErP 2015 Ready, and suitable for use
in central heating only/domestic hot water applications.
The pump can be controlled by an external PWM signal
and has 4 different pressure curves for central heating
applications.
When controlled by a PWM signal, pump speed varies
according to the frequency of the incoming PWM signal,
modulating head/flow rate on the basis of the selected
curve.
In the absence of a PWM signal, the pump runs at full
speed and delivers the head/flow rate determined by the
selected curve. Each curve is characterised by a maxi-
mum head expressed in metres.
User interface
The user interface features one button (1), one red/green
LED (2) and four yellow LEDs.
LED (2)
BUTTON (1)
Via this interface, users can access:
Functioning (performance display) mode. Pump perfor-
mance is displayed during functioning as a % of current
draw with respect to rated load. Alarm conditions can be
seen from the colour of LED (2).
Setting mode. Setting mode is accessed by pressing the
button (1), and is used to select the pump curve.

16
ENGLISH
GENERAL
Display Meaning Function Action
LED 1 red and LED 5 yellow,
both lit
The pump rotor is blocked. The pump automatically
attempts to start every 1.5
seconds.
Wait or check that the pump
rotor is free to rotate.
LED 1 red and LED 4 yellow,
both lit
Supply voltage too low. Indication only. The pump
continues to function.
Check the voltage of the
power supply.
LED 1 red and LED 3 yellow,
both lit
Electronic controller error. The pump has stopped
because supply voltage is
too low or because an error
has occurred in the internal
electronic controller.
Check the voltage of the
power supply or replace the
pump.
Setting mode
A) Setting display
To switch from performance display to setting display,
press button (1). The LEDs shows the current setting. See
the following table for the meaning of the LED display.
Setting display mode shows the type of pump control or
the currently selected pump curve. Settings cannot be
changed in performance display mode. After 2 seconds,
the display returns to performance display mode.
If LED 1 is red, it indicates that an alarm is active or that the
the pump is being controlled by an external (PWM) signal.
LEDs 2 and 3 show the type of internal control while LEDs
4 and 5 show the currently selected curve (1, 2, 3 or 4). All
these LEDs are yellow in colour.
LED 1 LED 2 LED 3 LED 4 LED 5
PWM A Red ON - - -
Curve 1 (4 m) ---
Curve 2 (5m) - ON -
Curve 3 (6m) - ON ON
Curve 4 (7m) - - ON
B) Button lock function
The button lock function serves to prevent improper use or
accidental changes to pump settings.
When the button lock is active, pressing the button has
no effect. This prevents users from accidentally accessing
setting mode while allowing them to use setting display
mode.
Press and hold the button for more than 10 seconds, to
activate / deactivate the button lock.
When the button is held down for 10 seconds, all the LEDs
except the red LED flash for one second to indicate that
the button lock function has been activated/deactivated.
C) Setting mode
To access setting mode, press and hold the button (1)
for between 2 and 10 seconds. The button lock must be
deactivated in order to change settings. Available settings
are displayed in a pre-defined sequence that is repeated
every time the button is briefly pressed and released. If the
button is not pressed for over 10 seconds, the pump exits
setting mode and returns to performance display mode.
The last settings made are saved in memory. See the table
above for the meanings of the LED sequences.
> 10s.
SETTING MENUPERFORMANCE
> 2 s.
X
10 s.
2 s.
SELECTED SETTING

17
ENGLISH
GENERAL
0
1
2
3
4
5
Q [m³/h]
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4 1,6 1,8 2,0 2,2 2,4 2,6 2,8 3,0 3,2 3,4
0,0 0,2 0,4 0,6 0,8 1,0 1,2 1,4
Q [m³/h]
6
7
[m]
H
0
10
20
30
40
50
60
[kPa]
p
0,0 0,1 0,2 0,3 0,4 0,5 0,60,7 0,80,9 1,0 Q [l/s]
0
10
20
30
40
50
[W]
P1
RESIDUAL HEAD
FLOW RATE
TECHNICAL SPECIFICATIONS SOLAR HEAT SYSTEM PUMP
DESCRIPTION ERP ready 2015
Electrical consumption 60 W
EEI Part 3 (*) ≤ 0,20
P L,Avg (**) ≤ 27 W
Minimum pressure at pump suction inlet 0,5 bar
(*) Energy efficiency index according to ERP 2015 (Commission regulations 641/2009 and 622/2012)
(**) Average annual electricity consumption according to ERP 2015 (Commission regulations 641/2009 and 622/2012)
Curves are referred to a water density of 983.2 Kg/m3,a temperature of +20°C, and a kinematic
viscosity of 0.474 mm2/s (0.474 cSt).
SOLAR HEAT SYSTEM PUMP CURVE

18
ENGLISH
GENERAL
GND
12345
1234
12 34
5
black
blue
orange
yellow/green
blue brown
white
white
yellow/green
brown CH
N
DHW
brown
blue
blue
brown
pink
CN5 CN2
X4 X9 X2
JP4
CN3CN1
P1
P3
P2
OPEOPE
FA2
CONTROL CARD
SOLAR CONTROLLER
FA1
SC ER
EA
TAC
TLSTLA
TBT APC
SM
PA
CI
M5 M3
F1 F2 M3a
M4
TA
N
N L
L
F
VD
VG
brown
blue
CS
SBi
brown
brown
black
blue brown
blue
red
white
white
brown
brown
brown
white
brown white
brown yellow/green
yellow/green
black
blue
blue
VHv
1234 1
4 3 2 1 8 7 6 5 4 3 2 1 9 8 7 6 5 4 3 2 1
2312
1 2 3 4 5 6 7 8 9
10
11 12 13 14 15 16 17 18 19 20 21 22
N
L
L1
N
3456
X16
Power supply
230 Vac
red
pink red
black
white
white
orange orange
black
white
VLv
blue
blue
blue
black
black
grey
SBsSColl
red
red
SR
CR
SE
7 6 5 4 3 2 1
APC Condensate pump alarm CR Remote control CN1÷CN5 Mains voltage connections EA Ignition electrode ER Flame detection electrode F Fuse 3.15A F (fast) F1-F2 Fuse 3.15A T (timed) JP4 Boiler configuration selection jumper (in position 3) M3÷M5
Connection terminals
OPE Gas valve operator Cl Central heating/storage cylinder pump
PA Water pressure switch P1 DHW temperature setting potentiometer P2 CH temperature setting potentiometer P3 Function selector R9 Maximum fan speed trimmer R10 Minimum fan speed trimmer R14 Burner ignition slow fan trimmer R19 Maximum CH fan speed trimmer R35
Temperature control curve selection trimmer
SC Condensate sensor SE Outdoor temperature sensor SF Flue gas temperature sensor
SM Primary circuit flow temperature sensor SR Primary circuit return temperature sensor SW1 Chimney sweep TA Room thermostat TAC Ignition transformer TR2 Main transformer TBT Low temperature thermostat TLA
Water overtemperature threshold thermostat
TLS Heat exchanger threshold thermostat VHv Fan power supply 230V VLv Fan control signal
VG Gas valve X2-X16 Low voltage connections VD 3-way valve servomotor CS Solar circuit pump SBi
Storage cylinder bottom tem-
perature sensor
SBs Storage cylinder top tem-
perature sensor SColl Solar circuit collector temperature probe
WIRING DIAGRAM

19
ENGLISH
GENERAL
THE MAIN CONTROL PANEL
20
40 60 80
100
4
321
0
0120
1 2 3 54 6 7 8 9
1 Storage cylinder temperature gauge
Displays domestic hot water temperature.
2 Boiler pressure gauge
Displays the pressure in the central heating circuit.
3 ÅStorage cylinder temperature selector (NOT USED)
The temperature of the domestic hot water is preset to 44°C in the factory.
The thermostatic mixer valve has to be adjusted to change this value (see
page 41).
4 Green LED
When lit, shows that a flame is being detected.
5 Two figure digital display
Displays information on boiler status.
6 Red LED
When lit, shows that an error (alarm) condition has been detected.
7 Function selector
ÉOff / Reset
ÖWinter mode
ÇSummer mode
8 ÑCentral heating temperature selector
Allows you to set the temperature of the central heating water.
9 Hole for timer
Press out the pre-formed cover to prepare the hole for the timer accessory.
CONTROL PANEL

20
ENGLISH
GENERAL
SOLAR CONTROLLER
kWh
Esc
F1
F3
F4
F2
A1
Function selector
No function selected / Stand-by. (The display
shows that the system is switched on but in
stand-by mode)
Current system configuration
- The display shows a diagram of the currently
selected system configuration.
- Turn the parameter selector clockwise to display
the various sensors and actuators in the selected
system configuration along with their names
(e.g. F1, F2, A1). Turn the parameter selector
anti-clockwise to display current statuses and
temperatures.
Collector/storage cylinder temperature sensor
- The display reads out the temperature currently
measured by temperature sensor F1 in the solar
collector. In some system configurations, the
temperature measured by the storage cylinder
temperature sensor is shown instead.
- The trend in temperatures measured by the sen-
sor over the last few hours is also shown.
Supplementary temperature sensor
- The display reads out the temperature currently
measured by temperature sensor F2.
- The trend in temperatures measured by the sen-
sor over the last few hours is also shown.
- If temperature sensor F2 is not installed, the
display reads out the message “Not connected”.
Storage cylinder top temperature sensor
- The display reads out the temperature currently
measured by storage cylinder top temperature
sensor F3.
- The trend in temperatures measured by the sen-
sor over the last few hours is also shown.
- If temperature sensor F3 is not installed, the
display reads out the message “Not connected”.
Storage cylinder bottom temperature sensor
- The display reads out the temperature currently
measured by storage cylinder bottom tempera-
ture sensor F4.
- The trend in temperatures measured by the sen-
sor over the last few hours is also shown.
Daily, weekly, monthly or total energy output
- The display reads out the energy produced by
the solar collector/s.
- The display switches automatically between Wh,
kWh and MWh.
User settings
- The display shows the settings the user can
change to adapt the system to his own personal
needs.
Installer settings
- The display shows the setting menus the installer
can use to put the solar controller into service. A
password is required to access these settings.
kWh
Function selector
Enter button
Escape button
Parameter
selector