Fantini Cosmi CH143A User manual

CH143A
FLUSH MOUNTING WEEKLY PROGRAMMABLE
THERMOSTAT
cover plate not included

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CH143A
CONTENTS OF PACKAGE
INDEX
INSTALLATION ....................................................................................................
ELECTRICAL CONNECTIONS .............................................................................
BUFFER BATTERY FUNCTION ............................................................................
QUICK GUIDE FOR PROGRAMMING ...................................................................
description of keys ...........................................................................
setting time and date .......................................................................
operating programs .........................................................................
settable temperatures .....................................................................
setting operating programs .............................................................
FUNCTIONS IN DETAIL ........................................................................................
available programs ...........................................................................
settable temperatures .....................................................................
advanced keys and functions ...........................................................
reset ..................................................................................................
MAINTENANCE ....................................................................................................
TECHNICAL FEATURES .......................................................................................
p. 3
p. 5
p. 5
p. 6
p. 6
p. 6
p. 7
p. 8
p. 8
p. 11
p. 11
p. 13
p. 14
p. 19
p. 19
p. 21
1 chronothermostat
3 frames
3 coloured covers, type A
3 coloured covers, type B
3 pairs of adapters
1 pair of special adapters for Bticino Matix
2 screws
1 user manual

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The CH143A chronothermostat must be installed in a 3-module recessed box, in the
middle of the apartment, preferably 1.5 m off the ground. The required components,
all included in the package, are used based on the plates available, according to the
following table.
* N.B. COVER A available colours: white, silver and black;
COVER B available colours: white, silver and black, for Bticino Matix white only.
COMPATIBLE PLATES COVER*
TYPE
FRAME
TYPE
SIDE ADAPT-
ERS * TABS TO DETACH
Bticino Living International
and Transizione Piana B 1 NO NO
Bticino Living Light Air B 3 NO
YES position “A+C”
Bticino Light, Light tech B 1 NO NO
Bticino Axolute A 1 NO NO
Bticino Matix B 2 SI (dedicated) YES position “A”
Vimar Idea and Rondò B 2 YES YES position “B”
Vimar Plana and Eikon B 1 NO NO
Vimar Eikon Evo A 3 NO YES position “A”
Vimar Arké A 3 NO NO
Gewiss Chorus One, Lux, Art B 2 NO YES position “A”
Ave sistema 45: Zama,
Banquise, Yes, Ral B 2 YES NO
Ave sistema 44: Zama,
Personal, Technopolymer A 1 NO NO
Legrand Cross, Vela square,
Vela round B 2 NO YES position “A”
INSTALLATION
1

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PERFORM THE FOLLOWING OPERATIONS:
1. act on the master switch on the electric panel to cut power to the electrical
system;
2. when required, detach the tabs according to the type of plate;
3. when required, mount the side adapters (A or B) and proceed as follows:
Cover “A”
4a. Fix the thermostat to the appropriate frame;
5a. Mount the cover on the thermostat body.
Cover “B”
4b. Mount the cover on the thermostat body
5b. Fix the thermostat to the appropriate frame;
6. connect the two wires of the boiler to terminals 1-2 of CH143A;
7. connect the two power cables L-N;
8. screw the frame onto the box using the provided screws;
9. mount the plate;
10. switch the electric system back on.
2
telaio
1
telaio
2
telaio
3
2
cut 4 tabs
according to type of cover plate “B”
“A”
“A”
“C”
cut 4 or 8 tabs
according to type of cover plate
frame
frame
frame

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CH141A
Caldaia
230V 50Hz
21
4
CH143A
Caldaia
21
4
LN
ELECTRICAL CONNECTIONS
2
BUFFER BATTERY FUNCTION
3
During black-outs, the programmed parameters will not be lost as the settings are
stored in a non-volatile memory.
The internal battery of CH143A allows it to maintain the date/time during blackouts.
N.B. the chronothermostat works properly even when the battery is discharged, but
during blackouts it is not assured that the date/time will be maintained.
ATTENTION: installation must be carried
out by qualified personnel.
ATTENTION: before performing the
electrical connections, make sure you
have disconnected power to the electric
system by means of the master switch on
the electric panel
!
!
Boiler

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QUICK GUIDE FOR PROGRAMMING
4
DESCRIPTION OF KEYS
The chronothermostat is equipped with 6 keys, the function of which varies
depending on the situation. It is described by the symbol which appears on the
display next to the key.
N.B.: pressing a key once has no effect aside from switching on the light on the display
to have a better view.
primary function
6 function keys
secondary function
winter relay ON
reset
summer relay ON
room temperature
Celsius / Fahrenheit
graphical section:
messages/time profile
of temperature
SETTING TIME AND DATE
After the device switches on, press the key
PROG briefly: the text “Setup” is displayed;
now press to enter the “Hours” page. Set
the hour by pressing and . Then press
to go to the “Minutes” setting.
Again press to select, in order, the Year,
Month and Day.
Pressing again allows you to choose
whether to disable automatic change of
summer/winter time: initially this function is
active can but can be deactivated by pressing “NO” using the keys and .
Pressing allows you to go back to the previous page.
To exit the Setup menu, press
ENTER .
ENTER
low battery symbol
day of the week
programs
summer/winter time

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OPERATING PROGRAMS
The CH143A chronothermostat has different operating modes, called programs:
“AUTO” WEEKLY PROGRAM:
one of the four programmable temperatures can
be associated to each half hour for each day of
the week. This is the program displayed when the
chronothermostat is switched on and is generally the
one most used.
“HOLIDAY” DAILY PROGRAM:
like in the AUTO program, you may select one of the
4 programmable temperatures for each half hour, but
the identical sequence will be repeated every day.
“JOLLY” TEMPORARY PROGRAM:
you may choose to hold a certain temperature for a
certain number of hours, after which it will go back to
the previously active program.
“MAN” MANUAL PROGRAM:
the chronothermostat maintains a fixed temperature,
specified each time, for an unlimited amount of time
until another program is selected.
SEL TEMP PROG DISP JOLLY OFF
HOLIDAY
MAN
JOLLY

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SYSTEM OFF OR WITH ANTIFREEZE PROGRAM “OFF/ANTIFREEZE”:
the system remains off or else maintains a very low
temperature (from 2 to 7°C) to prevent the fluid in
the heating system from freezing.
SETTING OPERATING PROGRAMS
ÆPROGRAM SELECTION
press SEL to select, in cyclical sequence, the different operating programs: AUTO ->
MAN -> OFF -> HOLIDAY -> AUTO.
PLEASE NOTE: the JOLLY temporary program is not included in the program
sequence, but can be selected directly by pressing the JOLLY key.
ÆSETTING THE TEMPERATURES
press TEMP in the AUTO, HOLIDAY and OFF
programs to change the value of the 4 programmable
temperatures: when you press TEMP several times,
the values T1, T2, T3, Ta appear in sequence; stop at
the T you want to change and use the arrow keys
and to increase or decrease the temperature by
a tenth of degree at a time. Press to go back to
the initial status.
Remember that T1 will always be less than or equal to T2, and T2 to T3.
SETTABLE TEMPERATURES
Four different temperatures can be set and one can be selected for each half hour
of the day in the AUTO and HOLIDAY programs. Three of these temperatures (T1,
T2 and T3) can have values from 2° to 40°C, while the fourth, T antifreeze (TA), can
range from 2° to 7°C, or be set at “OFF” (system off). The manual program has
its specific temperature (TMan), like the JOLLY program (Tj), which are set in the
respective screens and can range from 2° to 40°C.
The ANTIFREEZE/OFF program, on the other hand, follows the temperature TA
which, as we have said, can range from 2° to 7°C; or else, it can be set at “OFF”,
switching the plant completely off.

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In the JOLLY program, pressing TEMP alternates the view of the set temperature Tj
and of the hours remaining until the end of the program: these two values can be
changed using and .
The MAN program allows you to modify the fixed temperature TMan using the keys
and .
ÆEDITING CURRENT DATE AND TIME
briefly press the key
PROG to enter the “Setup” menu where you may change the
time, date, winter/summer mode and the automatic summer/winter time change
function.
ÆCUSTOMISATION OF WEEKLY “AUTO” PROGRAMMING AND DAILY
“HOLIDAY” PROGRAMMING
keep the key PROG pressed until the text “Config”
is displayed.
This menu allows you to program the weekly
profiles (AUTO program) and daily profiles (HOLIDAY
program) and to set the advanced functions (see the
following paragraphs for their description).
PLEASE NOTE: if the text “Setup” appears instead of “Config”, you did not press
the key long enough and you must press ENTER to go back to the normal operating
condition and try again.
When you enter the “Config” menu, a page appears which allows you to choose the
desired temperature (T1/T2/T3/Ta) for each half hour of the indicated day (from 1 to
7 indicating the days from Monday to Sunday).
PLEASE NOTE: T1/T2/T3/Ta are displayed on the right of the screen with the
symbols
Pressing and allows you to move one half hour at a time to the right or to the
left.
Pressing and allows you to go from one programmed temperature to another.
Pressing
PROG (briefly) switches you to the next day (DAY 1 -> 2 -> 3 -> 4 -> 5 -> 6
-> 7 -> H).
Press
COPY to copy the temperature profile of the current day on the following day.
COPY
PROG
0 00

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After H (profile of the Holiday daily program) you go to the Correction parameter
page.
Pressing PROG (long) or on day 1 sends you immediately to the Correction page.
Then pressing ENTER from the Correction page allows you to the exit the “Config”
menu.
Æ“JOLLY” PROGRAM SETTING
In all programs, except MAN, pressing the key JOLLY selects the temporary
program: this program allows you to define the desired temperature and its
duration in hours (up to a maximum of 240, so to say 10 days).
For example, you may want to keep a lower temperature during the entire weekend
when no one is home.
When you enter this program, you may modify the duration, which initially is one
hour, and increase the number of hours by pressing , or decrease them by
pressing .
Pressing TEMP allows you to view and modify temperature Tj, again using the keys
and .
Pressing TEMP again sends you back to view the duration of the JOLLY program.
When this time elapses, you go back to the initial program.
Æ“OFF/ANTIFREEZE” PROGRAM SETTING
Pressing OFF from any program switches the chronothermostat to the off/
antifreeze status.
The antifreeze temperature (Ta) can be programmed by pressing TEMP , from OFF
(boiler always off) to an interval between 2.0 and 7.0°C, by tenth of a degree, using
the arrow keys and .
Go back to the OFF status by pressing .
Pressing OFF again sends you back to the previous operating status.
ÆALTERNATIVE DISPLAYS
Other information can be viewed in the AUTO and HOLIDAY programs in place of the
temperature profile, by pressing the key DISP several times.
The first time it is pressed the programmed temperature for the current half hour
appears, the second time it displays the date and the third time it goes back to the
initial temperature profile.

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AVAILABLE PROGRAMS
CH143A has several operating modes (programs):
“AUTO” weekly program
“HOLIDAY” daily program
“JOLLY” temporary program
“MAN” manual program
system off or with antifreeze “OFF”program
Æ“AUTO” WEEKLY PROGRAM
4 temperature levels can be used in the AUTO operating mode (Ta, T1, T2, T3),
according to a programming with 30 minute steps, 24 hours a day, 7 days a week.
The days are numbered from 1 to 7 and correspond to the seven days of the week,
starting from Monday.
To simplify programming, you may set the first day and copy it on the following days.
The default for days 1 – 5 (Monday to Friday) is:
00:00 – 06:30 T1
06:30 – 09:00 T2
09:00 – 11:30 T1
11:30 – 14:00 T2
14:00 – 17:00 T1
17:00 – 22:30 T3
22:30 – 24:00 T1
while the default for days 6 and 7 (Saturday and Sunday) is:
00:00 – 08:00 T1
08:00 – 11:30 T2
11:30 – 23:00 T3
23:00 – 24:00 T1
winter program
Monday-Friday
winter program
Saturday-Sunday
6.30 9 11.30 14 17 22.30 24h0
0 8 11.30 23 24h
°C
T3 20
T2 19
T1 17
°C
T3 20
T2 19
T1 17
FUNCTIONS IN DETAIL
5

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summer program
Monday-Friday
For summer mode (air conditioning), the
default program
is that shown in the figure.
0 5 8 18.30 22.30 24h
°C
T3 28
T2 26
T1 24
The value of the 4 temperatures can be
programmed using the TEMP function.
The temperature profile (hourly variation)
can be programmed using the PROG
function.
Æ“HOLIDAY” DAILY PROGRAM
4 temperature levels can be used in HOLIDAY operating mode, according to a
programming with 30 minute steps, 24 hours a day.
This achieves a daily programming, regardless of the days of the week. The default
temperature profile is:
00:00 – 08:00 T1
08:00 – 11:30 T2
11:30 – 23:00 T3
23:00 – 24:00 T1
The value of the temperatures can be programmed using the TEMP function.
The temperature profile (hourly variation) can be programmed using the PROG
function.
8 11.30 23 24h
°C
T3 20
T2 19
T1 17
ÆJOLLY
The JOLLY mode allows you to set a
programmable temperature (Tj) for a
programmable number of hours (from 1 to
240). It is used when you wish to introduce
a temporary variation to programming
without changing the parameters, for
example to maintain a high temperature
for longer when spending an evening with
friends or to keep it low when no one is home the weekend.
If you enter JOLLY mode using the specific function key, when time is up it goes
back automatically to programming in progress.
°C
T1 17
7dd 6.30 9 11.30 14 17 22.30 24h
JOLLY BACK TO AUTOMATIC MODE

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ÆMANUAL
MAN mode allows you to set a fixed
temperature manually (Tman), ranging
from +2.0 to +40.0 degrees, without
expiring and without needing to modify the
weekly or daily program.
For example it can be used to keep the
house at a different temperature than that
of the daily program when no one is home, or to switch on the system remotely,
bringing it to a constant temperature.
°C
T3 21
24h
T1 temperature
settable from 2 to 40°C
ÆOFF
OFF mode is used when you want to switch the system off.
It uses the temperature TA (antifreeze) as a reference, to guarantee protection of
the system at low temperatures.
TA is normally set at +5 degrees, but it can also be set at OFF, to switch the boiler
completely off. Weekly or daily programs remain unchanged.
SETTABLE TEMPERATURES
The system can use 4 different temperature levels, three for normal use and one,
called “antifreeze”, to be used when you wish to keep the boiler off, but without
risking having the fluid in the system freeze.
Programming of the three T is conditioned by reciprocal values, meaning that T1
cannot be higher than T2, T2 cannot be higher than T3 or lower than T1, and T3
cannot be lower than T2.
You must therefore pay attention to their programming, set by using the
TEMP key.
T1 ranges between +2.0 and +T2 degrees, with variations every tenth of degree
[default 17.0].
T2 ranges between +T1 and +T3 degrees, with variations every tenth of degree
[default 19.0].
T3 ranges between +T2 and +40.0 degrees, with variations every tenth of degree
[default 20.0].
TA (antifreeze) ranges between +2.0 and +7.0 degrees, with variations every tenth of
degree, or a can be OFF, when the boiler remains off [default 5.0].

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ADVANCED KEYS AND FUNCTIONS
USING THE SEL KEY
The
SEL key allows you to select the operating mode of the chronothermostat,
according to the following programs:
ÆHOLIDAY
ÆAUTO
ÆMANUAL
ÆOFF
To change the selected program, press
SEL in sequence (cyclical). The first 3
statuses are signalled with a small text on the left of the display, while the OFF
status appears in the graphical area at the top.
USING THE
TEMP KEY
ÆIn AUTO, HOLIDAY and OFF
Pressing
TEMP allows you to enter programming of the 4 temperatures used in
these statuses.
Change the temperatures using the arrow keys and , as long as T1 is no higher
than T2, T2 is not lower than T1 and higher than T3, T3 is not lower than T2.
Press
TEMP to go to the next temperature (cyclical) T1>T2>T3>TA>T1.
Press to go back to the home page.
ÆIn JOLLY
Pressing
TEMP alternates from programming of Tj to that of the duration of Jolly
(from zero to 240 hours, equal to 10 days).
Use and to change Tj (between +2 and + 40°) and the duration (1 hour steps).

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USING THE PROG KEY
ÆPROG (brief) -> SETUP
ÆWinter/PAG1/Set
using or you switch from Winter to Summer and vice versa
press to change page and press ENTER to exit PROG .
ÆHours HH (flashing) : MM/PAG2/SEt
pressing cyclically increases the hours while decreases them.
press to change page and press ENTER to exit PROG .
ÆMin. HH:MM (flashing) /PAG3/Set
pressing cyclically increases the minutes while decreases them.
press to change page and press ENTER to exit PROG .
ÆYear: YYYY/PAG4/Set
pressing increases the years while decreases them
press to change page and press ENTER to exit PROG .
ÆMonth: MM/PAG5/Set
pressing cyclically increases the months while decreases them
press to change page and press ENTER to exit PROG .
ÆDate: DD/PAG6/Set
pressing cyclically increases the days while decreases them.
press to change page and press
ENTER to exit PROG .
PLEASE NOTE: when the date is set, the chronothermostat automatically
determines the day of the week.
ÆSummer Time YES/PAG7/Set
Automatically selects summer time, applicable in Europe and some of
the countries. This set up automatically updates the time when it changes
(March and October). Use or to say YES or NO. Press to go back to
page.1 (Winter/Summer) and press ENTER to exit PROG .

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ÆPROG (long) -> CONFIG.
The display of day 1 appears, with the graphical display of the temperatures
each half hour, indication of the half hour and the associated temperature
( ).
Day 1 corresponds to Monday, and so on. Day H is the Holiday, which does not
Change during the week.
Pressing moves forward a half hour.
Pressing or moves up or down from TA to T1 to T2 to T3.
Press PROG (briefly) to change the day (1, 2, 3, 4, 5, 6, 7, H).
After H you go to page1 (Correction).
Pressing PROG (long) sends you right away to page 1.
Press COPY to copy the temperature profile of the current day on the following
day.
From page 2 on, pressing ENTER allows you to exit programming.
Press to go back to the previous half hour (even the day before).
Press at the start of day 1 to go right to page 2.
ÆCorrection/PAG1/XX.X°
This allows you to modify the read temperature, which due to the recessed
wall installation or perhaps a non-ideal height might not indicate the true
temperature perceived.
It is recommended to calibrate it by comparing it with a thermometer
placed at the desired height/area.
Use and to modify the temperature value on the display.
Press to go to page 2 and ENTER to exit.
ÆCelsius/PAG2/XX.X°
This allows you to choose the temperature display scale between Celsius
and Fahrenheit degrees.
Press or to switch from Celsius to Fahrenheit.
Press to go to page 3 and ENTER to exit.
ÆLight OFF-ON Xs/PAG3
To adjust back lighting of the display (sky blue light). You can choose not to
have it (OFF), to have it with a duration programmed from 1 to 9 seconds
or to always have it ON.
When back lighting is set at “always ON” or “always“always OFF”, simply
press the keys once to activate the various functions. Press or to

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switch from OFF to ON, then choosing the duration (1-9 sec, always ON).
Press to go to page 4 and ENTER to exit.
ÆInt. Light X/PAG4
Allows you to modify the luminous intensity of the display, at 9 levels.
Press or to modify the brightness level (1-9)
Press to go to page 5 and ENTER to exit.
ÆItaliano/PAG5
Allows you to change the language used during programming.
Press or to cyclically switch from one language to another.
Press to go to page 6 and ENTER to exit.
ÆBlock? NO(YES)/PAG6
Allows you to block the keyboard, with the 4-digit password. It only works
once and then must be re-enabled.
Pressing or switches from NO to YES, and press ENTER to request
the password, entered with the arrow keys or , selecting the digits
with and .
Press ENTER to store it, going back to the normal operating display,
where only the function key ENTER is visible. When you press it you are
requested to enter the password, using the arrow keys and , followed
by ENTER . The display goes back to normal programming, enabling all
the functions.
Press to go to page 7 and ENTER to exit.
ÆReset? NO (YES)/PAG7
Press or to switch from NO to YES. Pressing ENTER, while “YES” is
displayed restores all the parameters (except date and time) to the default
values.
Press to go to page 8 and ENTER to exit.
ÆCH143A vX.Y/PAG8
Displays the software version of the CH143A chronothermostat.
Press ENTER to exit and to go back to the normal operation page.
Pressing allows you to go back to programming the hourly profile (page
1).

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USING THE DISP KEY
The
DISP key allows you to view windows with different information regardless of
the operating status, only when in AUTO or HOLIDAY modes.
The following windows may be viewed:
ÆProfile of the day / hour:min / Tamb
ÆCurrently set temperature (e.g T3=20.0°) / hour:min /Tamb
ÆDd/Mm/Yyyy / hour:min /Tamb
USING THE
JOLLY KEY
The
JOLLY key allows you to force a temperature to a fixed value for a preset
amount of time to replace normal operation.
The following window is displayed:
ÆDuration of JOLLY status (HH h MM m) / hour:min / Tamb
Using the arrow keys and allows you to change the duration of the JOLLY
status with hourly steps. The Jolly temperature is set by pressing the key TEMP ,
which displays a window such as the following:
ÆTj=xx.x° / hour:min / Tamb
This window remains displayed until you press the key once again, going back to
the previous display, which indicates the duration of the status.
To exit JOLLY mode before time is up, you can change the number of hours to zero
using the arrow key to go back automatically to the initial status, or else press
SEL to choose the desired status, with the AUTO, MAN, HOLIDAY, OFF cycle.
USING THE
OFF KEY
The OFF key allows you to switch the system off, in whatever operating status it is
found. The following window is displayed:
ÆOFF / hour:min / Tamb
Pressing OFF again sends you back to the previous operating status.

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Due to unexpected events, the device could
need to be restarted (e.g following strong
electromagnetic interference): in this
case, you may act by pressing the round
key (RESET) located inside the device in
the bottom right corner, using a paper clip
or pin; the device restarts displaying the
text: “Fantini Cosmi / CH143A” for a few
seconds, and then goes to AUTO mode.
The previous configuration is retained as it is stored by the chronothermostat.
The date and clock are normally not changed.
If you wish to go back to default programming, the system can be restored by
pressing RESET in PROG/CONFIG, which is exited in AUTO mode. In this case, all
the settings and customisations made by the user will be lost and replaced with
default settings, except date and time.
RESET
MAINTENANCE
Use only a soft and dry cloth to clean the device. Do not use water or other liquid
substances.

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WASTE DISPOSAL
The symbol of the crossed-out wheeled bin indicates that the products must be
collected and disposed of separately from household waste. The batteries and
integrated accumulators may be disposed of together with the product. They will
be separated at the recycling facilities. A black bar indicates that the product was
placed on the market after August 13th, 2005.
Participating in the separate collection of products and batteries contributes to
the correct disposal of these materials and therefore avoids possible negative
consequences for the environment and human health. For more detailed
information on the collection and recycling programmes available in your country,
contact the local authorities or the sales point where you purchased the product.