Fondital ITACA KR 32 Quick start guide

IST 03 C 541 - 01
INSTALLATION, USE AND MAINTENANCE
ITACA
KC 12 - 24 - 28 - 32
KR 12 - 24 - 28 - 32
KRB 12 - 24 - 28 - 32
EN

2
Dear Sirs,
Thank You for choosing and buying one of our boilers. Please read these instructions carefully in order to properly install, operate, and
maintain the equipment.
We inform users that:
• boilers shall be installed by an authorised company in full compliance with the prevailing standards;

concerning the performed installation;



3
General notes for installers, maintenance technicians, and users
This instruction manual is an integral and essential part of the product. It shall be supplied by the installer to the user who shall keep it carefully to
consult it whenever necessary.
This document shall be supplied together with the equipment in case the latter is sold or transferred to others.


The equipment shall be installed in compliance with the prevailing standards and in accordance with the manufacturer's instructions specified in
this manual: the manufacturer will not be held responsible for a wrong installation causing damages to persons, animals and/or property.
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 specific waste management sites.
The packages can be dangerous for children so keep them out of their reach.
In the event of failure and/or faulty functioning, switch off the boiler. Do not attempt to make repairs: contact qualified technicians.
Original parts must be used for all repairs to the boiler
Non-observance of the above requirements may affect the safety of the boilers and endanger people, animals and/or property.

Appropriate maintenance will keep the boiler working in optimum conditions, ensuring environmental protection and total


The user is strongly advised to have the boiler serviced and repaired by a qualified Service Centre.
In the event of long periods of inactivity of the boiler, disconnect it from power mains and close the gas cock.

Should there be a risk of freezing, add anti-freeze: it is not advisable to drain the system as this may result in damage; use specific anti-freeze
products suitable for multi-metal heating systems.

- do not turn on or off electric switches and do not turn on electric appliances;
- do not ignite flames and do not smoke;
- close the main gas cock;
- open doors and windows;


The boiler is designed for installation in the countries indicated on the technical data plate: installation in any other country



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RAPID OPERATING INSTRUCTIONS
The following instructions will help you to switch the boiler on quickly and regulate it for immediate use.




This manual contains full details of how the boiler works, and
full operating and safety instructions.
 Open the gas cock installed ahead of the boiler.
Turn the master switch installed ahead of the boiler to ON: boiler display (fig. 1) comes on.
To set the DHW water temperature press DHW +/- buttons (D, fig. 1). Set temperature as required.
To set the heating water temperature, press heating water +/- buttons (E, fig. 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, fig. 1).
If boiler does not resume its normal operation after 3 attempts, contact a qualified Service Centre.
If you do not wish to activate the heating function, press the "operating mode selection" button until
displaying the symbol : only the DHW function will be enabled.
If you do not wish to activate the DHW function, press the "operating mode selection" button until displaying
the symbol : only the CH function will be enabled.
If you wish to activate both the heating and DHW functions, press the "operating mode selection" button
until displaying the symbol .

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TABLE OF CONTENTS
Warnings
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. COMFORT enable/disable ............................................................................................................................................................................................................................page 13
1.4. Selecting the operating mode....................................................................................................................................................................................................................page 14
1.5. Adjusting heating and DHW temperature .............................................................................................................................................................................................page 15
1.6. Time setting .......................................................................................................................................................................................................................................................page 16
1.7. "Day temperature" and "night temperature" setting .........................................................................................................................................................................page 17
1.8. "Manual" programme setting......................................................................................................................................................................................................................page 18
1.9. "Automatic" programme setting................................................................................................................................................................................................................page 18
1.10. Heating programme mode........................................................................................................................................................................................................................page 19
1.11. Parameter display .........................................................................................................................................................................................................................................page 20
1.12. Failures that cannot be reset.....................................................................................................................................................................................................................page 21
1.13. Boiler reset.......................................................................................................................................................................................................................................................page 21
1.14. Boiler operation.............................................................................................................................................................................................................................................page 22
1.14.1. Switching on ..........................................................................................................................................................................................................................................page 22
1.14.2. CH function..............................................................................................................................................................................................................................................page 22
1.14.3. DHW function .........................................................................................................................................................................................................................................page 22
1.14.4. COMFORT function ...............................................................................................................................................................................................................................page 23
1.14.5. ANTI-FREEZE function..........................................................................................................................................................................................................................page 23
1.14.5.1. Ambient probes anti-freeze function.....................................................................................................................................................................................page 23
1.14.5.2. Flow anti-freeze function............................................................................................................................................................................................................page 23
1.14.5.3. Plate DHW anti-freeze function................................................................................................................................................................................................ page 23
1.14.5.4. Water cylinder anti-freeze function ........................................................................................................................................................................................page 23
1.14.6. Pump and other component anti-seize function ......................................................................................................................................................................page 24
1.14.7. Operation with external probe (optional) ....................................................................................................................................................................................page 24
1.14.8. Operation with Remote Control (optional) .................................................................................................................................................................................page 24
1.15. Boiler shut-down........................................................................................................................................................................................................................................... page 24
1.15.1. Burner shut-down .................................................................................................................................................................................................................................page 24
1.15.2. Shut-down due to incorrect air/flue gas system draught.......................................................................................................................................................page 24
1.15.3. Shut-down due to low water pressure ..........................................................................................................................................................................................page 25
1.15.4. Shut-down due to automatic filling failure..................................................................................................................................................................................page 26
1.15.5. Shut-down for fan malfunction........................................................................................................................................................................................................page 27
1.15.6 Alarm due to temperature probe malfunction............................................................................................................................................................................ page 27
1.15.7. Alarm due to Remote Control (optional) connection malfunction.....................................................................................................................................page 27
1.16. Maintenance ..................................................................................................................................................................................................................................................page 27
1.17. Notes for the user..........................................................................................................................................................................................................................................page 27
2. Technical features and dimensions ...................................................................................................................................................................................................................page 28
2.1. Technical features.............................................................................................................................................................................................................................................page 28
2.2. Dimensions.........................................................................................................................................................................................................................................................page 29
2.3. Boiler layouts......................................................................................................................................................................................................................................................page 32
2.4. Operating data ..................................................................................................................................................................................................................................................page 34
2.5. General characteristics ................................................................................................................................................................................................................................... page 35
3. Instructions for the installer..................................................................................................................................................................................................................................page 37
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. Positioning the boiler .............................................................................................................................................................................................................................page 37
3.2.4. Installing the boiler .................................................................................................................................................................................................................................page 39
3.2.5. Boiler room ventilation ..........................................................................................................................................................................................................................page 39
3.2.6. Air intake and flue gas venting system ...........................................................................................................................................................................................page 40
3.2.6.1. Configuration of air intake and flue gas venting ducts...................................................................................................................................................... page 41
3.2.6.2. Ø 100/60 mm and Ø 125/80 mm air/flue gas coaxial duct system................................................................................................................................page 41
3.2.6.3. Air intake and flue gas venting via 80 mm split pipes........................................................................................................................................................page 43
3.2.6.4. Air intake and flue gas venting via 60 mm split pipes........................................................................................................................................................page 43
3.2.7. Checking combustion efficiency........................................................................................................................................................................................................ page 44
3.2.7.1. Flue cleaning function ...................................................................................................................................................................................................................page 44
3.2.7.2. Measurement procedure .............................................................................................................................................................................................................page 44
3.2.8. Connection to gas mains.......................................................................................................................................................................................................................page 45
3.2.9. Hydraulic connections............................................................................................................................................................................................................................page 45
3.2.10. Connection to the electrical mains .................................................................................................................................................................................................page 46
3.2.11. Selecting the operating range in heating mode........................................................................................................................................................................page 46
3.2.12. Connection to ambient thermostat (optional)........................................................................................................................................................................... page 46
3.2.13. Installation and operation with Open Therm Remote Control (optional) ........................................................................................................................ page 46
3.2.14. Installation of the (optional) external probe and sliding temperature operation.........................................................................................................page 47
3.2.15. TSP parameters that can be set from interface or Remote Control.....................................................................................................................................page 49
3.3. Filling the system..............................................................................................................................................................................................................................................page 52
3.4. Starting up the boiler...................................................................................................................................................................................................................................... page 52
3.4.1. Preliminary checks...................................................................................................................................................................................................................................page 52
3.4.2. Switching on and switching off ..........................................................................................................................................................................................................page 52
3.5. Circulation pump flow resistance............................................................................................................................................................................................................... page 53
3.6. Wiring diagrams................................................................................................................................................................................................................................................page 55
3.6.1. Wiring diagram KRB model...................................................................................................................................................................................................................page 55
3.6.2. Forced circulation solar system with CH only boiler wiring diagram....................................................................................................................................page 56
3.6.3. Multifunction relay wiring diagram...................................................................................................................................................................................................page 56
3.6.4. Wiring diagram KC model .....................................................................................................................................................................................................................page 57
3.6.5. Forced circulation solar system with combi boiler wiring diagram.......................................................................................................................................page 58
3.6.6. Solar collector anti-freeze function ...................................................................................................................................................................................................page 59

6
3.6.7. Collector heat transfer function.......................................................................................................................................................................................................... page 59
3.6.8. Boiler cooling function...........................................................................................................................................................................................................................page 59
3.6.9. Solar mode operation and failure signal .........................................................................................................................................................................................page 59
3.6.10. Natural circulation solar system with combi boiler wiring diagram ...................................................................................................................................page 60
3.6.11. Multifunction relay setting diagrams - KC and KRB models...................................................................................................................................................page 61
3.7. Adaptation to other gas types and burner adjustment .....................................................................................................................................................................page 63
3.7.1. Switching from NATURAL GAS to PROPANE .................................................................................................................................................................................. page 63
3.7.2. Switching from PROPANE to NATURAL GAS .................................................................................................................................................................................page 63
3.7.3. Gas valve setting ......................................................................................................................................................................................................................................page 64
3.7.3.1. Maximum heat output adjustment...........................................................................................................................................................................................page 64
3.7.3.2. Minimum heat output adjustment ...........................................................................................................................................................................................page 64
4. Testing the boiler ......................................................................................................................................................................................................................................................page 66
4.1. Preliminary checks ...........................................................................................................................................................................................................................................page 66
4.2. Switching on and switching off...................................................................................................................................................................................................................page 66
5. Maintenance ..............................................................................................................................................................................................................................................................page 67
5.1. Maintenance schedule ...................................................................................................................................................................................................................................page 67
5.2. Combustion analysis ....................................................................................................................................................................................................................................... page 67
6. Troubleshooting........................................................................................................................................................................................................................................................page 68
PICTURE INDEX
Fig. 1 - Control panel ...................................................................................................................................................................................................................................................page 7
Fig. 2 - Filler cock............................................................................................................................................................................................................................................................page 26
Fig. 3 - Overall dimensions, KC model ...................................................................................................................................................................................................................page 29
Fig. 4 - Overall dimensions, KR model ................................................................................................................................................................................................................... page 30
Fig. 5 - Overall dimensions, KRB model ................................................................................................................................................................................................................page 31
Fig. 6 - Boiler layout, KC model.................................................................................................................................................................................................................................page 32
Fig. 7 - Boiler layout, KR model.................................................................................................................................................................................................................................page 32
Fig. 8 - Boiler layout, KRB model...............................................................................................................................................................................................................................page 33
Fig. 9 - Installation template......................................................................................................................................................................................................................................page 38
Fig. 10 – Installation examples .................................................................................................................................................................................................................................page 40
Fig. 11 - Air intake and flue gas venting coaxial pipe system .......................................................................................................................................................................page 43
Fig. 12 - Dimensions for connection to air intake and flue gas venting coaxial pipe system............................................................................................................page 43
Fig. 13 - Air intake and flue gas venting split pipe system ............................................................................................................................................................................page 44
Fig. 14 - Dimensions for connection to air intake and flue gas venting split pipe system .................................................................................................................page 44
Fig. 15 - Air intake and flue gas venting tower ................................................................................................................................................................................................... page 44
Fig. 16 - Openings for combustion efficiency measurement ........................................................................................................................................................................page 44
Fig. 17 - Gas mains connection................................................................................................................................................................................................................................. page 45
Fig. 18 - Central heating curves with external probe operation...................................................................................................................................................................page 48
Fig. 19 - Residual head curves to the system, KC/KR/KRB 12-24 models ..................................................................................................................................................page 53
Fig. 20 - Residual head curves to the system, KC/KR/KRB 28-32 model ....................................................................................................................................................page 54
Fig. 21 - Wiring diagram, KRB model ......................................................................................................................................................................................................................page 55
Fig. 22 - Forced circulation solar system with CH only boiler wiring diagram ........................................................................................................................................ page 56
Fig. 23 - Multifunction relay wiring diagram .......................................................................................................................................................................................................page 56
Fig. 24 - Wiring diagram, KC model.........................................................................................................................................................................................................................page 57
Fig. 25 - Forced circulation solar system with combi boiler wiring diagram ........................................................................................................................................... page 58
Fig. 26 - Natural circulation solar system with combi boiler wiring diagram ..........................................................................................................................................page 60
Fig. 27 - Multifunction relay wiring diagram .......................................................................................................................................................................................................page 60
Fig. 28 - Relay with Remote Control and ambient thermostat 2..................................................................................................................................................................page 61
Fig. 29 - Relay with interface programming and ambient thermostat 2................................................................................................................................................... page 61
Fig. 30 - Relay with remote request .......................................................................................................................................................................................................................page 61
Fig. 31 - Relay with request .......................................................................................................................................................................................................................................page 61
Fig. 32 - Relay with alarm indication ......................................................................................................................................................................................................................page 62
Fig. 33 - Adaptation to other gas types ................................................................................................................................................................................................................page 64
Fig. 34 - Removing the mixer ....................................................................................................................................................................................................................................page 64
Fig. 35 - Changing nozzles .........................................................................................................................................................................................................................................page 64
Fig. 36 - Fitting the mixer............................................................................................................................................................................................................................................page 64
Fig. 37 - Adjustment of the gas valve.....................................................................................................................................................................................................................page 65
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 20
Table 4 - KC 12 model adjustment rates ...............................................................................................................................................................................................................page 34
Table 5 - KC 24 model adjustment rates ...............................................................................................................................................................................................................page 34
Table 6 - KC 28 model adjustment rates ...............................................................................................................................................................................................................page 34
Table 7 - KC 32 model adjustment rates ...............................................................................................................................................................................................................page 34
Table 8 - KR/KRB 12 model adjustment rates ..................................................................................................................................................................................................... page 34
Table 9 - KR/KRB 24 model adjustment rates ..................................................................................................................................................................................................... page 35
Table 10 - KR/KRB 28 model adjustment rates ...................................................................................................................................................................................................page 35
Table 11 - KR/RB 32 model adjustment rates .....................................................................................................................................................................................................page 35
Table 12 - General specifications, KC/KR/KRB model .......................................................................................................................................................................................page 35
Table 13 - Combustion specifications, KC/KR/KRB 12 model ........................................................................................................................................................................ page 36
Table 14 - Combustion specifications, KC/KR/KRB 24 model ........................................................................................................................................................................ page 36
Table 15 - Combustion specifications, KC/KR/KRB 28 model ........................................................................................................................................................................ page 36
Table 16 - Combustion specifications, KC/KR/KRB 32 model ........................................................................................................................................................................ page 36
Table 17 - Boiler re-ignition temperatures ...........................................................................................................................................................................................................page 46
Table 18 - Limits to be set for TSP parameters and default values based on boiler type (TSP0)......................................................................................................page 47
Table 19 - General table of TSP parameters .........................................................................................................................................................................................................page 49
Table 20 - Relationship between "Temperature and Nominal resistance" for temperature probes ...............................................................................................page 62
Table 21 - CO2values ....................................................................................................................................................................................................................................................page 65
Table 22 - P0-P4-P4-P5-P6-P7-P8 parameter setting........................................................................................................................................................................................page 65

7
 
 
Temperature selection (day/night) and information recalling
 Weekly programme for temperature zones and manual programme selection
 Time and ambient temperature setting
 DHW setting
 CH water and parameter setting
 Alarm reset and back to the starting page during parameter selection
 DHW comfort function enabling and confirm key
 Operating status 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.
fig. 1
A B C
D E
F G 
13
11
20
6
5
19
7
9
10
15
14
12
18
8
4
21
22
3
1
2
23
17
16
24
26
25

8
  
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 (fan rpm)
3Automatic filling active
4Indication of the temperatures and values of
fault and shut-down parameters
5A heating request is present Displaying of the CH temperature
set-point
6A DHW request is present Display of DHW temperature
set-point
7
Display of DHW comfort state: wording ON
= comfort enabled; wording OFF = comfort
disabled
8Current temperature
(sun = day; moon = night)
Setting of the two temperatures
associated with the sun and the moon
9Display of current time/fan revolutions
10 Indicates if the unit is in
time slot programming mode
11 Manual mode operation Manual mode setting
12 Display of zone 1 heating programme Edit zone 1 heating programme
13 Current day of the week Edit day of the week
14 Display of zone 2 heating programme Edit zone 2 heating programme
15 Display of external cylinder programme Edit external cylinder programme
16 Night time temperature indication
17 Daytime temperature indication All lights flashing:
automatic mode setting
18
Display of the flue
cleaning function and of the "rpm" wording to
show the number of revolutions per minute
Indicates that you are accessing the
flue cleaning function.
19
Symbols for instantaneous DHW, CH.
Symbol :
ON = function enabled
OFF = function disabled
20 Display of ambient temperature
set-point
21 Indication of the centigrade degrees
22 Solar pump or solar valve active
23 Indication of system
pressure measurement unit
24 Percentage indication
25 During parameter editing, the wrench symbol
stays on until the set datum is confirmed.
26 Flame ON indication

9
 
Normal operation
Boiler switch in OFF mode

No active function

Boiler switch in SUMMER or WINTER mode


Only for KC models


The flow water temperature is displayed
Boiler switch in SUMMER or WINTER mode


Only for KR or KRB models with external water cylinder (optional)
Table 1 - BOILER STATUS - LCD DISPLAY INDICATIONS during normal operation
WINTER

WINTER
SUMMER
WINTERSUMMER
WINTERSUMMER


10
Malfunction
No flame
Triggering of double flow probe
Triggering of flue gas thermostat
Insufficient system pressure
Flow probe failure

Flue probe failure

Too high system pressure

Return probe failure




Triggering of safety thermostat in mixed zone 2
Flow probe failure in mixed zone 2
Flow probe failure in mixed zone 3

11
Flow probe failure in mixed zone 4
Fan failure



Ambient probe 1 failure
Ambient probe 2 failure
Pressure transducer failure

Communication error between main board and interface board
Safety system hardware malfunction
Incompatibility between boiler main board and interface board
Offset error T max
Flow or return probe > 120°C
Maximum flow derivative exceeded
Maximum return derivative exceeded

Flue gas maximum threshold exceeding
Alarm for flue gas maximum derivative exceeding
Allarme superamento massima derivata fumi

12



Table 2 - BOILER STATUS - LCD indications in the event of malfunction

13
 
This function keeps the plate heat exchanger hot, to minimise the waiting time for the production of DHW. When the "comfort" icon (7, fig. 1) is on,
the function is enabled. When it is off the function is disabled and the boiler is in standard DHW operating mode for an instant boiler.
For CH only KRB models the "comfort" function is not available. The "comfort" icon on the display is always OFF.
If “COMFORT” function is enabled (icon “COMFORT” 7in fig.1 on) press“COMFORT” button (Gin fig. 1) to disable it.
If “COMFORT” function is disabled (icon “COMFORT” 7in fig. 1 OFF) press“COMFORT” button to enable it.
 


14
 
 
 
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.

15
 
Press the“DHW +/- ” button (D, fig. 1) to select the domestic hot water set-point. During selection, icon DHW (6, fig. 1) will flash. As soon as button
is released, icon DHW (6, fig. 1) will continue flashing for approx. 3 seconds, and set-point value will flash as well. After this time, value is stored and
display standard operation will be restored. In the phase in which the icon is flashing, only the buttons to adjust the set-point temperature of the
DHW are enabled.
Press the“CH +/- ” button (E, fig. 1) to select the flow water set-point. During selection, icon CH (5, fig. 1) will flash. As soon as button is released,
icon will continue flashing for approx. 3 seconds, and set-point value will flash as well. After this time, value is stored and display standard operation
will be restored. In the phase in which the icon is flashing, only the buttons to adjust the set-point temperature of the CH are enabled.



16
 
1- To set time, minutes and
day of the week, press“set”.
2- Flashing values can be
edited by pressing“CH +/- ”
buttons.
Press "ok" to confirm 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.

17
 
When one or more ambient probes are connected to boiler board, two levels of desired 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 identified by the symbol , while "night" temperature by the symbol .
The "day temperature" is active when bars are on, while
"night" temperature is active when bars are off.
1- Press“set” twice to access
the "day temperature"
setting mode.
2- Press“CH + / - " buttons
to edit "day temperature"
values. Press "ok" to confirm
the edited values and enter
the "night temperature"
setting mode.
3- Press“CH + / - " buttons
to edit "night temperature"
values.
4- Press "ok" to confirm the
edited values and enter the
"day temperature" setting
mode.
Bars "off"
Bars "on"

18
 
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. External water cylinder, on the other side, is heated according to the
specific programme.
1- Press“prog” to access the
manual programme setting
mode.
2- Press“ok” to confirm
manual programming
activation.
Press "reset" to go back to
the starting page, namely to
quit the function.
 
The selection of "automatic" mode, identified 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 confirm
automatic programming
activation.
Press "reset" to go back to
the starting page, namely to
quit the function.

19
 
To access zone 1 heating programme displaying or editing, press "prog" button twice.
1- The display shows zone
1 symbol flashing, sun or
moon symbols, bars on or
off, respectively , at 00:00.
Clock lights display the
programming connected to
day 1 (Monday) and 00:00
bar is flashing.
2- Press“ok” to access zone
programming function.
"Prog" wording starts
flashing together with
number 1 (Monday). Press
"CH +/-" 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 "sun/moon"
button 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 (flashing
bar) clock bar comes on if
the "sun" icon is on, and
turns off if the "moon" icon
is off.
Current time is indicated
by both the clock and the
flashing bar.
Press "CH +/-" buttons to
move inside the different
times of the day.
4- To program other days
of the week or to program
zone 2 and water cylinder,
press “reset”.
You will go back to the
starting page.
Whatever part of the programme can be quit by pressing the "reset" button twice. The procedure to program zone 2 and water cylinder, is very
similar to the one followed to program zone 1. Press "prog" to access the 4 following programmes in a sequence:
manual; zone 1; zone 2; water cylinder.
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 different time slots.
When no ambient probe is connected, the two day/night levels will acquire the on and off 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.

20
 
Press “Info” (Afig.1) to scroll the different parameter values. You can quit this function at any time by simply pressing the "Reset" button. Paragraph
3.2.15 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 flow temperature displaying.
If no external probe is installed, the flow temperature manually set on boiler will be displayed. If an external probe is installed, the flow
temperature boiler calculated through the curves on fig. 1 will be displayed.
P42 Domestic hot water temperature displaying (for KC models).
P43 Return temperature displaying.
P44 Displaying of water temperature at the inlet of plate heat exchanger (model KC).
Water cylinder temperature displaying (for models KRB and KR with installed (optional) water cylinder probe installed).
P45 Flue gas temperature displaying.
P46 Solar collector temperature displaying (if the collector probe is installed).
P47 Solar valve temperature displaying (if the solar valve probe is installed).
Table 3 - Displayable parameters with “info” button