Fondital MADEIRA SOLAR COMPACT KBS 24 Installation and operating instructions

IST 03 C 620 - 03
INSTALLATION, USE AND MAINTENANCE
MADEIRA
SOLAR COMPACT
KBS 24 - 32
EN

2
Dear Sirs,
thank you for choosing and buying our boilers. Please, carefully read
these instructions in order to properly install, operate and maintain the above-mentioned equipment.
We inform users that:
• boilers shall be installed by an authorised company in full compliance with the prevailing standards;
• the installing company is required by law to issue a declaration of conformity with the current Standards
concerning the performed installation;
• anyone entrusting installation to an unqualied installer will be subject to administrative sanctions;
• boilers can be maintained by authorised personnel only, under the requirements set forth by the prevailing rules.

3
General notes for installing and maintenance technicians, and users
This instruction manual, which is an integral and indispensable part of the product, must be handed over to the user by the installer
and must be kept in a safe place for future reference. The manual must accompany the kit should it be sold or its possession transferred.
This document shall be supplied together with the equipment in case the latter is sold or transferred to others.
This equipment has been manufactured to be connected to a room heating system and to a DHW distribution system.
Any other use shall be considered unsuitable and dangerous for people, animals, and/or property.
The equipment shall be installed in compliance with the prevailing standards and in accordance with the manufacturer's instructions specied
in this manual: the manufacturer will not be held responsible for injuries to people and animals and/or damages to property resulting from an
incorrect installation.
Damage and/or injury caused by incorrect installation or use and/or damage and/or injury due to non-observance of the manufacturer’s
instructions shall release the manufacturer from any and all contractual and extra-contractual liability.
Before installing the boiler, check that the technical data correspond to the requirements for its correct use in the system.
Check that the boiler is intact and it has not been damaged during transport and handling. Do not install equipment which is clearly damaged and/
or faulty.
Do not obstruct the air intake openings.
Only original accessories or optional kits (including the electric ones) are to be installed.
Properly dispose of the packaging as all the materials can be recycled. The packaging must therefore be sent to specic waste management sites.
The packages can be dangerous: keep them out of the reach of children.
In the event of failure and/or faulty functioning, switch o the boiler. Do not attempt to make repairs: contact qualied technicians.
Original parts must be used for all repairs to the product.
Non-observance of the above requirements may aect the safety of the boilers and endanger people, animals and/or property.
Routine equipment maintenance should be performed according to the schedule in the relevant section of this manual.
Appropriate maintenance will keep the equipment working in optimum conditions, ensuring environmental protection
and total safety for persons, animals and/or property.
Incorrect and irregular maintenance can be a source of danger for people, animals and property.
The user is strongly advised to have the boiler serviced and repaired by a qualied Service Centre.
In the event of long periods of inactivity of the boiler, disconnect it from the electrical power mains and close the gas cock.
Warning: should power mains be disconnected, boiler electronic antifreeze function will not be operative.
Should there be a risk of freezing, add antifreeze: it is not advisable to drain the system as this may result in damage; use specic anti-freeze products
suitable for multi-metal heating systems.
With gas red boilers, take the following measures if you smell gas:
- do not turn on or o electric switches and do not turn on electric appliances;
- do not ignite ames and do not smoke;
- close the main gas cock;
- open doors and windows;
- contact a Service Centre, a qualied installer or the gas supply company.
Never use a ame to locate a gas leak.
The boiler is designed for installation in the countries indicated on the technical data plate which is applied both to the
package and the boiler itself: installation in any other country may be a source of danger for people, animals and/or property.
The manufacturer will bear no contractual and tortious liability for failure to comply with all the instructions above.

4
RAPID OPERATING INSTRUCTIONS
The following instructions will help you to switch the boiler on quickly and regulate it for immediate use.
It is presumed that the boiler has been installed by a qualied installer, it has been commissioned and is ready to operate
correctly.
If any accessories have been tted on the boiler, these instructions will not cover them.
You will therefore have to refer to the full boiler instructions as well as to the specic instructions for the installed accessories.
This manual contains full details of how the boiler works, and full operating and safety instructions.
1. Open the gas cock installed ahead of the boiler.
2. Turn the master switch installed ahead of the boiler ON: the boiler display (g. 1) turns on.
3. If you do not wish to activate the heating function, press the "operating mode selection button" until
displaying the symbol : this will activate the DHW function only.
4. If you wish to activate both the heating and DHW functions, press the "operating mode selection" button until
displaying the symbol .
5. If you do not wish to activate the DHW function, press the "operating mode selection button" a few times until
displaying the symbol : this will activate the heating function only.
6. To set the DHW water temperature press DHW +/- buttons (D, g. 1). Set temperature as required.
7. To set the heating water temperature, press heating water + and - buttons (E, g. 1). Set temperature as required.
8. Set the desired temperature on the (optional) ambient thermostat in the building.
The boiler is now ready to operate.
If the boiler shuts down, press "reset" button (F, g. 1).
If boiler does not resume its normal operation after three attempts, contact a qualied Service Centre.

5
CONTENTS
Warnings ......................................................................................................................................................................................................page 2
General notes for installers, maintenance technicians, and users .......................................................................................................... page 3
Rapid operating instructions......................................................................................................................................................................page 4
1. Instructions for the user..........................................................................................................................................................................page 7
1.1. Control panel......................................................................................................................................................................................................................................page 7
1.2. Interpreting BOILER STATUS from LCD DISPLAY INDICATIONS ........................................................................................................................................page 9
1.3. Enabling/disabling the “Comfort” function.............................................................................................................................................................................page 12
1.4. Selecting the operating mode.....................................................................................................................................................................................................page 13
1.5. Adjusting heating and DHW temperature ..............................................................................................................................................................................page 14
1.6. Timer setting.......................................................................................................................................................................................................................................page 15
1.7. "Day temperature" and "night temperature" setting...........................................................................................................................................................page 16
1.8. "Manual" programme setting.......................................................................................................................................................................................................page 17
1.9. "Automatic" programme setting.................................................................................................................................................................................................page 17
1.10. CH programme mode................................................................................................................................................................................................................... page 18
1.11. Parameters display......................................................................................................................................................................................................................... page 19
1.12. Failures that cannot be reset......................................................................................................................................................................................................page 20
1.13. Resuming boiler function............................................................................................................................................................................................................page 20
1.14. Boiler operation ..............................................................................................................................................................................................................................page 21
1.14.1. Switching on ...........................................................................................................................................................................................................................page 21
1.14.2. CH function ..............................................................................................................................................................................................................................page 21
1.14.3. DHW function..........................................................................................................................................................................................................................page 21
1.14.3.1. DHW integration through boiler burner................................................................................................................................................................ page 21
1.14.3.2. DHW production through solar plant..................................................................................................................................................................... page 22
1.14.4. Freeze protection function.................................................................................................................................................................................................page 22
1.14.4.1. Ambient probe freeze protection function ..........................................................................................................................................................page 22
1.14.4.2. Flow freeze protection function ...............................................................................................................................................................................page 22
1.14.4.3. Plate DHW freeze protection function ...................................................................................................................................................................page 22
1.14.4.4. Solar collector freeze protection function ............................................................................................................................................................ page 22
1.14.5. Pump and valve anti-shutdown function .....................................................................................................................................................................page 23
1.14.6. Collector heat transfer function........................................................................................................................................................................................page 23
1.14.7. Water heater cooling function...........................................................................................................................................................................................page 23
1.14.8. Solar mode operation and failure signal ....................................................................................................................................................................... page 23
1.14.9. Operation with (optional) external probe.....................................................................................................................................................................page 23
1.14.10. Operation with (optional) Remote Control ...............................................................................................................................................................page 23
1.15. Boiler shut-down ........................................................................................................................................................................................................................... page 24
1.15.1. Burner shut-down..................................................................................................................................................................................................................page 24
1.15.2. Shut-down due to incorrect air/ue gas system draught ....................................................................................................................................... page 24
1.15.3. Shut-down due to low water pressure...........................................................................................................................................................................page 24
1.15.4. Shut-down for fan malfunction ........................................................................................................................................................................................page 25
1.15.5. Alarm due to temperature probe malfunction ...........................................................................................................................................................page 25
1.15.6. Alarm due to (optional) Remote Control connection malfunction .....................................................................................................................page 25
1.16. Maintenance ...................................................................................................................................................................................................................................page 25
1.17. Notes for the user..........................................................................................................................................................................................................................page 25
2. Technical features and dimensions........................................................................................................................................................ page26
2.1. Technical features .............................................................................................................................................................................................................................page 26
2.2. Dimensions .........................................................................................................................................................................................................................................page 28
2.3. Key components...............................................................................................................................................................................................................................page 30
2.4. Boiler operating diagram...............................................................................................................................................................................................................page 32
2.5. Operating data...................................................................................................................................................................................................................................page 33
2.6. General characteristics....................................................................................................................................................................................................................page 33
2.7. CH circulation pump available head..........................................................................................................................................................................................page 34
2.8. Low and high temperature circulation pumps available head (V versions)................................................................................................................ page 35
2.9. Low and high temperature circulation pump available head (Z versions)..................................................................................................................page 35
2.10. Solar circulation pump available head................................................................................................................................................................................... page 36
3. Instructions for the installer ...................................................................................................................................................................page37
3.1. Installation standards...................................................................................................................................................................................................................... page 37
3.2. Installation........................................................................................................................................................................................................................................... page 37
3.2.1. Packaging ....................................................................................................................................................................................................................................page 37
3.2.2. Choosing where to install the boiler .................................................................................................................................................................................page 37
3.2.3. Installing the boiler.................................................................................................................................................................................................................. page 37
3.2.4. Boiler room ventilation...........................................................................................................................................................................................................page 38
3.2.5. Air intake and ue gas venting system.............................................................................................................................................................................page 38
3.2.5.1. Conguration of air intake and ue gas venting ducts: B23, B53, C13, C33, C43, C53, C83 .................................................................. page 39
3.2.5.2. Ø 100/60 mm and Ø 125/80 mm air/ue gas coaxial duct system.................................................................................................................page 40
3.2.5.3. Air intake and ue gas venting via 80 mm split pipes.........................................................................................................................................page 41
3.2.5.4. Air intake and ue gas venting via 60 mm split pipes.........................................................................................................................................page 41
3.2.6. Checking combustion eciency.........................................................................................................................................................................................page 42
3.2.6.1. Flue cleaning function.................................................................................................................................................................................................... page 42
3.2.6.2. Measurement procedure ...............................................................................................................................................................................................page 42
3.2.7. Connection to gas mains.......................................................................................................................................................................................................page 43
3.2.8. Hydraulic connections............................................................................................................................................................................................................ page 43
3.2.9. Solar collector probe installation........................................................................................................................................................................................page 44
3.2.10. Connection to electrical mains .........................................................................................................................................................................................page 44
3.2.11. Selecting the operating range in CH mode.................................................................................................................................................................. page 44
3.2.12. Connection to ambient thermostat (optional)............................................................................................................................................................ page 45
3.2.13. Connection to Open Therm Remote Control (optional)..........................................................................................................................................page 45
3.2.14. Connection to the (optional) external probe and sliding temperature operation ........................................................................................page 46
3.2.15. TSP parameters that can be set from interface and Remote Control..................................................................................................................page 48
3.3. Filling the system..............................................................................................................................................................................................................................page 50
3.3.1. Filling the CH system...............................................................................................................................................................................................................page 50
3.3.2. Filling the solar plant...............................................................................................................................................................................................................page 51
3.4. Starting up the boiler......................................................................................................................................................................................................................page 51

6
FIGURE INDEX
g. 1 - Control panel.....................................................................................................................................................................................................................................page 7
g. 2 - DHW mixing valve ...........................................................................................................................................................................................................................page 22
g. 3 - CH system ller cock ....................................................................................................................................................................................................................... page 24
g. 4 - Dimensions.........................................................................................................................................................................................................................................page 28
g. 5 - Hydraulic connections (Madeira Solar Compact KBS)........................................................................................................................................................page 29
g. 6 - Hydraulic connections (Madeira Solar Compact KBS V) ....................................................................................................................................................page 29
g. 7 - Hydraulic connections (Madeira Solar Compact KBS Z) ....................................................................................................................................................page 29
g. 8 - Main components - front view....................................................................................................................................................................................................page 30
g. 9 - Main components - side view......................................................................................................................................................................................................page 31
g. 10 - Hydraulic diagram.........................................................................................................................................................................................................................page 32
g. 11 - KBS 24 Model CH circulation pump available head..........................................................................................................................................................page 34
g. 12 - KBS 32 Model CH circulation pump available head..........................................................................................................................................................page 34
g. 13 - High-temperature CH circulation pump available head (V version)...........................................................................................................................page 35
g. 14 - Low-temperature CH circulation pump available head (V version)............................................................................................................................ page 35
g. 15 - High-temperature CH circulation pump available head (Z version)........................................................................................................................... page 35
g. 16 - Zone 1 low-temperature CH circulation pump available head (Z version) ..............................................................................................................page 36
g. 17 - Zone 2 low-temperature CH circulation pump available head (Z version) ..............................................................................................................page 36
g. 18 - Solar circulation pump available head .................................................................................................................................................................................. page 36
g. 19 - Position of coaxial duct system ................................................................................................................................................................................................ page 40
g. 20 - Dimensions for coaxial duct system ....................................................................................................................................................................................... page 40
g. 21 - Position of split venting system ...............................................................................................................................................................................................page 41
g. 22 - Dimensions of split venting system........................................................................................................................................................................................page 41
g. 23 - Venting tower..................................................................................................................................................................................................................................page 42
g. 24 - Flue gas analysis ports ................................................................................................................................................................................................................. page 42
g. 25 - Gas connection...............................................................................................................................................................................................................................page 43
g. 26 - Connection for condensate drain............................................................................................................................................................................................page 44
g. 27 - Thermoregulation curves ...........................................................................................................................................................................................................page 47
g. 28 - Solar plant owmeter...................................................................................................................................................................................................................page 51
g. 29 - KBS version wiring diagram.......................................................................................................................................................................................................page 52
g. 30 - KBS V version wiring diagram ...................................................................................................................................................................................................page 54
g. 31 - KBS Z version wiring diagram ...................................................................................................................................................................................................page 56
g. 32 - Adaptation to other gas types.................................................................................................................................................................................................. page 59
g. 33 - Removing the mixer .....................................................................................................................................................................................................................page 59
g. 34 - Changing nozzles ..........................................................................................................................................................................................................................page 59
g. 35 - Fitting the mixer............................................................................................................................................................................................................................. page 59
g. 36 - Adjustment of the gas valve...................................................................................................................................................................................................... page 60
TABLE INDEX
Table 1 - Boiler status - LCD indications during normal operation.............................................................................................................................................. page 9
Table 2 - Boiler status - LCD indications in the event of malfunction.........................................................................................................................................page 10
Table 3 - Displayable parameters with info button...........................................................................................................................................................................page 19
Table 4 - KBS 24 adjustment rates .......................................................................................................................................................................................................... page 33
Table 5 - KBS 32 adjustment rates .......................................................................................................................................................................................................... page 33
Table 6 - Technical features........................................................................................................................................................................................................................ page 33
Table 7 - KBS 24 model combustion specications ..........................................................................................................................................................................page 34
Table 8 - KBS 32 model combustion specications ..........................................................................................................................................................................page 34
Table 9 - Burner re-ignition temperatures............................................................................................................................................................................................page 44
Table 10 - Limits to be set for TSP parameters and default values based on boiler type (TSP0) ...................................................................................... page 45
Table 11 - General table of parameters ................................................................................................................................................................................................. page 49
Table 12 - Relationship between temperature (°C) and nominal resistance (Ohm) of the SR heating probe.............................................................page 58
Table 13 - CO2rates ......................................................................................................................................................................................................................................page 60
Table 14 - Diameter of nozzles - diaphragms .....................................................................................................................................................................................page 60
3.4.1. Preliminary checks ...................................................................................................................................................................................................................page 51
3.4.2. Switching on and switching o...........................................................................................................................................................................................page 51
3.5. Wiring diagrams ................................................................................................................................................................................................................................page 52
3.6. Adaptation to other gas types and burner adjustment .....................................................................................................................................................page 58
3.6.1. Switching from METHANE to PROPANE ...........................................................................................................................................................................page 58
3.6.2. Switching from PROPANE to METHANE ...........................................................................................................................................................................page 58
3.6.3. Gas valve setting.......................................................................................................................................................................................................................page 59
3.6.3.1. Maximum heat output adjustment............................................................................................................................................................................page 59
3.6.3.2. Minimum heat output adjustment............................................................................................................................................................................. page 59
4. Testing the boiler..................................................................................................................................................................................... page61
4.1. Preliminary checks............................................................................................................................................................................................................................page 61
4.2. Switching on and switching o...................................................................................................................................................................................................page 61
5. Maintenance ............................................................................................................................................................................................page61
5.1. Maintenance schedule....................................................................................................................................................................................................................page 61
5.2. Combustion analysis .......................................................................................................................................................................................................................page 62
6. Troubleshooting ...................................................................................................................................................................................... page63

7
1. INSTRUCTIONS FOR THE USER
1.1. Control panel
A. Temperature selection (day/night) and recall information.
B. Weekly programme for temperature zones and manual programme selection.
C. Timer and ambient temperature setting.
D. Domestic hot water setting (see paragraphs 1.3., 1.4., 1.5., 1.14.3).
E. CH water setting (see paragraphs 1.4., 1.5., 1.14.2.) and parameter setting.
F. Alarm reset and back to the starting page during parameter selection.
G. DHW comfort function enabling and conrm key.
H. Mode selection.
To gain access to the interface, touch the display area. Once active, the interface enables all the keys. 15 seconds after the last key has been
touched, the interface disables all the keys.
g. 1
A B C
D E
F G H
12
10
18
5
4
17
6
8
9
13
11
16
7
3
19
20
1
2
21
15
14
22
24
23

8
SYMBOL STEADY FLASHING
1Indication of "parameter" inside the parameter
menu.
2
Displaying of the number of parameters, or of
the system pressure, or of the burner power
percentage.
3Indication of the temperatures, parameter
values, faults and shut-downs.
4Boiler is in CH mode. CH water temperature adjustment
with buttons (E, g. 1).
5Boiler is in DHW mode. DHW temperature adjustment with
buttons (D, g. 1).
6
Display of DHW "comfort" state: wording ON =
comfort enabled; wording OFF
= comfort disabled
7Current temperature
(sun = day; moon = night)
Setting of the two temperatures
associated with the day and the night.
8Display of current time/fan revolutions.
9Indicates if the unit is in
time slot programming mode.
10 Manual mode operation. Manual mode setting.
11 Display of zone 1 heating programme. Edit zone 1 heating programme.
12 Current day of the week. Edit day of the week.
13 Display of zone 2 heating programme. Edit zone 2 heating programme.
14 Night time temperature indication.
15 Daytime temperature indication. All lights ashing:
automatic mode setting.
16
Displaying of the
ue cleaning function and of the "rpm"
wording to show the number of revolutions
per minute of the fan.
Indicates that you are accessing the
ue cleaning function.
17
Symbols for instantaneous DHW, heating.
Symbol
ON = function enabled,
OFF = function disabled.
18
With external probe installed, it
ashes when the calculated ambient
temperature is being set through the
buttons (E, g. 1).
19 Indication of the centigrade degrees.
20 Solar pump or solar valve active.
21 Indication of system pressure measurement
unit.
22 Percentage indication.
23 During parameter editing, the wrench symbol
stays on until the set datum is conrmed.
24 Lit ame indication on the burner.

9
1.2. Interpreting BOILER STATUS from LCD DISPLAY INDICATIONS
Normal operation
Boiler switch in OFF mode
Boiler switch in SUMMER or WINTER mode or CH ONLY
No active function
The ow temperature and the heating system pressure are displayed
Boiler switch in SUMMER or WINTER mode or CH ONLY
Solar pump active (24, g. 10) or solar valve active (20, g. 10)
The ow temperature and the heating system pressure are displayed
Boiler switch in SUMMER or WINTER mode
The boiler is heating the water coming from the water heater
DHW temperature displayed
Boiler switch in WINTER mode or CH ONLY
CH function active
The ow water temperature is displayed
WINTERSUMMER
CENTRAL HEATING
ONLY
WINTERSUMMER
WINTERSUMMER
CENTRAL HEATING
ONLY
WINTER
CENTRAL HEATING
ONLY

10
Malfunction
No ame
Triggering of double ow probe
Triggering of ue gas thermostat
Insucient system pressure
Flow probe failure
DHW probe failure
Flue gas probe failure
Too high system pressure
Plate inlet water probe failure
Return probe failure
Solar collector probe failure (SCS)
Solar valve probe failure, water heater top part (SVS)
Solar water heater probe failure, low part (SBS)
Remote Control connection failure (only shown on Remote Control panel)
Triggering of safety thermostat in mixed zone 2
Flow probe failure in mixed zone 2
Flow probe failure in mixed zone 3
Boiler switch in SUMMER or WINTER mode
Comfort function in progress (the plate exchanger is kept heated)
The ow water temperature is displayed
Table 1 - BOILER STATUS - LCD DISPLAY INDICATIONS during normal operation
WINTERSUMMER

11
Fan failure
Communication failure between peripheral devices (zone boards, solar)
Hydraulic conguration not allowed (wrong P03 and P18 parameter setting)
Zone conguration error (ambient probe, Remote Control and ambient
thermostat). Wrong setting of P61 parameter.
Ambient probe 1 failure
Ambient probe 2 failure
Pressure transducer failure
External probe fault with connected ambient probe (displayed if P57=2 or P57=3)
Communication error between main board and interface board
Shut-down due to safety circuit hardware fault
Incompatibility between boiler board and interface board
Oset error ∆T max
Flow or return probe > 120°C
Maximum ow derivative exceeded
Maximum return derivative exceeded
Flue gas temperature lower than heating return temperature
Flue gas maximum threshold exceeded
Flue gas maximum derivative exceeding alarm
Max. number of reset attempts from touch screen reached
Max. number of reset attempts from Remote Control reached
(optional, if connected)
Table 2 - BOILER STATUS - LCD indications in the event of malfunction

12
1.3. Enabling/disabling the “Comfort” function
This function keeps the plate heat exchanger hot, to minimise the waiting time for the production of DHW. When the "COMFORT" icon (6, g. 1) is
on, the function is enabled. When it is o the function is disabled and the boiler performs the standard functions.
If “COMFORT”function is enabled (icon “COMFORT”6, in g. 1 on) press “COMFORT” button (G, g. 1) to disable it.
If “COMFORT”function is disabled (icon “COMFORT”6, g. 1 OFF) press “COMFORT” button to enable it.
1. "COMFORT"
FUNCTION ENABLED
2. PRESS THE
COMFORT BUTTON
3. "COMFORT"
FUNCTION DISABLED

13
1. OPERATING MODE:
OFF
2. OPERATING MODE:
SUMMER
3. OPERATING MODE:
WINTER
4. OPERATING MODE:
CENTRAL HEATING ONLY
1.4. Selecting the operating mode
Whenever button is pressed, the "SUMMER” ,“WINTER” , “CH ONLY” , “OFF” modes are enabled in sequence.
At this stage, all buttons are enabled.
When the "SUMMER" mode is enabled, only the DHW production function is active.
When the "CH ONLY" mode is enabled, only the heating water production function is active.
When the "WINTER" mode is enabled, both DHW and CH functions are active.
When the "OFF" mode is enabled, no function is active.

14
1. DHW
TEMPERATURE
SETTING
2. CH
TEMPERATURE
SETTING
1.5. Adjusting heating and DHW temperature
Press the "DHW + and -" button (D, g. 1) to select the desired domestic hot water temperature (refer to paragraph 1.14.3). During selection, DHW
icon (5, g. 1) will ash. As soon as button is released, icon will continue ashing for approx. 3 seconds, and temperature value will ash as well.
After this time, value is stored and display standard operation will be restored. In the phase in which the icon is ashing, only the buttons to adjust
the temperature of the DHW are enabled.
Press the "Heating + and -" button (E, g. 1) to select the desired ow water temperature (refer to paragraph 1.14.2). During selection, CH icon
(4, g. 1) will ash. As soon as button is released, icon will continue ashing for approx. 3 seconds, and temperature value will ash as well. After
this time, value is stored and display standard operation will be restored. In the phase in which the icon is ashing, only the buttons to adjust the
heating temperature are enabled.

15
1.6. Timer setting
1- To set time, minutes and day
of the week, press“set”.
2- Flashing values can be
edited by pressing "CH +
and -" buttons. Press "ok" to
conrm the edited value and
shift to next parameter, press
"reset" to quit the function
and go back to starting page.
Press "set" to access the day
and night setting function
described in the following
paragraph.

16
1.7. "Day temperature" and "night temperature" setting
When one or more ambient probes are connected to boiler electronic board, two levels of ambient temperatures can be set. Boiler will manage the
heating request based on the set temperatures, as follows. If no ambient probe is connected to the boiler, temperatures cannot be set.
"Day" temperature is identied by the symbol , while "night" temperature by the symbol .
The "day temperaturet" is active when bars are on, while
"night" temperature is active when bars are o.
1- Press“set”twice toaccess the
"day temperature" setting mode.
2- Press “CH + and - " buttons
to edit "day temperature"
values. Press "ok" to conrm
the edited value and enter the
"night temperature" setting
mode.
3- Press "CH + and - buttons" to
edit "night temperature" values.
4- Press "ok" to conrm the
edited value and quit the
"day temperature" and "night
temperature" setting mode.
Bars "o"
Bars "on"

17
1.8. "Manual" programme setting
The "manual" mode selection indicated with symbol , allows activating the heating function, 24 hours a day, in both zones at the "day
temperature", disabling at the same time zone 1 and zone 2 programming.
1- Press“prog”to access the
manual programme setting
mode.
2- Press“ok”to conrm manual
programming activation.
Press "reset" to go back to the
starting page, namely to quit
the function.
1.9. "Automatic" programme setting
The selection of "automatic" mode, identied by symbol , allows boiler to enable heating of both zones in "day temperature" or "night
temperature", based on the programming envisaged for zone 1 and zone 2.
1- Press“prog”to access the
automatic programme setting
mode.
2- Press“ok”to conrm
automatic programming
activation. Press "reset" to go
back to the starting page,
namely to quit the function.

18
1.10. CH programme mode
To access zone 1 heating programme displaying or editing, press "prog" button twice.
1- The display shows zone
1 symbol ashing, sun or
moon symbols, bars on or o,
respectively , at 00:00. Clock
lights display the programming
associated to day 1 (Monday)
and 00:00 bar is ashing.
2- Press“ok”to access zone
programming function.
"Prog" wording starts ashing
together with number 1
(Monday). Press CH + and -"
buttons to select the desired
day of the week. Press "ok" to
select the desired day. Now
you can associate the day/
night level to the desired time
of the day.
3- Whenever“day/night” button
(A, g. 1) is pressed, the sun and
moon symbols are alternatively
activated (sun = day level; moon
= night level). At the same time,
close to the current time (ashing
bar) clock bar comes on if the
"sun" icon is on, or turns o if the
"moon" icon is on. Current time
is indicated by both the clock
and the ashing bar. Press "CH
+/-" buttons to move inside the
dierent times of the day.
Whatever part of the programme can be quit by pressing the "reset" button twice. The procedure to program zone 2 is very similar to the one
followed to program zone 1. Press "prog" to access the 3 following programmes in a sequence:
manual; zone 1; zone 2.
If ambient probes are connected, the "day temperature" level and the "night temperature" will acquire the temperature value, and heating will be
active until the temperature measured by the ambient probe reaches the preset value for the dierent time slots.
When no ambient probe is connected, the two day/night levels will acquire the on and o values. So heating is ON in the selected periods with the
sun symbol, while it is OFF in the selected periods with the moon symbol.
In case of connection with Open Therm Remote Control, that zone shall not be managed by boiler boards, as it will be directly managed by the
Remote Control and, as a consequence, zone programming will be inhibited.
4- To program other days of
the week or to program zone
2 press“reset”. You will go
back to the starting page.

19
1.11. Parameters display
Press “Info” (A, g. 1) to scroll the dierent parameter values. You can quit this function at any time by simply pressing the "Reset" button. Paragraph
3.2.14 describes the meaning of all parameters.
PARAMETERS DESCRIPTION
P30 - TSP30 External temperature displaying (if an external probe is present).
P31 Flow temperature displaying.
P32
Calculated nominal ow temperature displaying.
If no external probe is installed, the ow temperature manually set on boiler will be displayed. If an external probe is installed, the ow
temperature boiler calculated through the curves on g. 27 will be displayed
P33 Displaying of ow temperature set for zone 2 (V versions)
P34 Displaying of ow temperature currently detected for zone 2 (V versions)
P36 Displaying of ow temperature set for zone 3 (Z versions)
P37 Displaying of ow temperature currently detected for zone 3 (Z versions)
P42 Displaying of domestic hot water temperature.
P43 Displaying of return temperature.
P44 Displaying of plate inlet water temperature.
P45 Displaying of ue gas temperature.
P46 Displaying of solar collector temperature (if the collector probe is installed).
P47 Displaying of solar water heater temperature (low part).
P48 Displaying of solar valve temperature (water heater, top part).
P49 Displaying of ambient probe 1 temperature (if ambient probe is connected).
P50 Displaying of ambient probe 2 temperature (if ambient probe is connected).
Table 3 - Displayable parameters with info button

20
1.12. Failures that cannot be reset
The display shows the failure based on the corresponding error code (see paragraph 1.2). Some failures can be reset through the reset key, while
some others are self-resettable. Refer to the following paragraph (“Resume boiler function”).
If failures cannot be reset but are of the self-resettable type, no key will be enabled and only the LCD back-lighting will be on. As soon as the error
cause is eliminated, the failure signal will disappear from the interface, this latter will be enabled and, 15 seconds after no key is touched, all the
keys but the one around the LCD will be disabled.
1.13. Resuming boiler function
The display shows the failure based on the corresponding error code (see paragraph 1.2). Some failures can be reset through the reset key, while
some others are self-resettable.
If shut-downs can be reset (E01, E02, E03, E40, E80, E86, E87), the "reset" key and the LCD back-lighting will always be on.
The only active key you can press is the "reset" key.
When the reset key is pressed and boiler is under the correct conditions, the error is reset. The failure signal will disappear from the interface, this
latter will be enabled and, 15 seconds after no key is touched, all the keys but the one around the LCD will be disabled.