Fantini Cosmi CH115RF User manual

CH115RF
ELECTRONIC ROOM THERMOSTAT

2
Technical data ..........................................................9
Table of Contents
Introduction ..............................................................3
Controls and indications ..........................................3
Controls .............................................................3
Indications .........................................................4
User’s manual .........................................................4
Summer / Winter Selection ................................5
Operating modes ...............................................5
“Comfort” operating mode .................................5
“Economy” operating mode ...............................6
“OFF” Function (OFF / Antifreeze) ..................6
Maintenance ............................................................7
Installation ...............................................................7
Fastening the base ............................................7
Fastening the thermostat onto the base ............8
Fitting and replacing the batteries .....................8
CH173D self-learning procedure .......................8

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Introduction
The CH115RF is a three-temperature thermostat sui-
table to control the room temperature both in heating
and in air-conditioning operating conditions. These
controls are sent to the CH173D actuator, supplied
separately, that communicates in radio-frequency
with the CH115RF.
The CH115RF is powered by two AA 1.5V batteries
and is suitable to remotely control a relay. The ther-
mostat measures the room temperature through an
internal probe and keeps the “set point” by controlling
the relay switching on and off.
The wide display shows the measured room tempe-
rature, the current program and the selected season.
Three operating modes (Comfort, Economy and
OFF/Antifreeze) are available and the user can select
to operate the thermostat with the heating function
(Winter) or the air-conditioning function (Summer).
Settings and data are stored in a non-volatile memory
suitable to retain them even when batteries are not
tted.
The thermostat comes in three colors: white, Silver
(CH116RF) and anthracite Black (CH117RF).
Controls and indications
Controls
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1
2
3
4
1. Set point increase key
2. Set point decrease key
3. Comfort/Economy switch key
4. OFF key
5. Thermostat reset key
Key combinations
(pressed simultaneously)
1+2 Celsius/Fahreneit switch
3+4 Summer/Winter switch

4
1
2 3 4 5 6 7
8
Indications
1. Measured temperature
2. Comfort symbol
3. Economy symbol
4. Summer symbol
5. Winter symbol
6. System ON in summer operation
7. System ON in winter operation
8. Low battery charge
User’s manual
First of all, make sure that the self-learning procedure
has been performed yet (page 8); moreover, verify
that both the CH115RF and the CH173D are 30 me-
ters far from each other at the most In fact, this dis-
tance represents the free air maximum range for the
radio frequency modules used by the thermostat and
the actuator. Please note that the range will decrease
if obstacles are found between the CH115RF and the
CH173D.
To start the thermostat after having installed it, pro-
ceed as follows:
1. Select Summer / Winter operation.
2. Select the operating mode.

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Summer / Winter Selection
To switch from Winter operation (i.e.: heating system)
to Summer operation (i.e.: air-conditioning system),
and vice versa, press the 3+4 key combination simul-
taneously. The selected operation will be shown on
the display by the “Winter” or “Summer” icons.
TOP COVER
Winter Summer
THERMOSTAT
FRONT SIDE
Operating modes
The CH115RF thermostat features three different
manual operating modes: Comfort, Economy and the
OFF function (OFF/Antifreeze).
“Comfort” operating mode
With the “comfort” operating mode (key 3, Comfort
symbol), the thermostat regulates the heating or air-
conditioning system operation in order to keep always
the same comfort temperature set.
The comfort temperature set point may be changed
during operation by means of keys 1 and 2. Tem-
perature may be changed from 2 to 40 °C, by 0.1 °C
steps.

6
“Economy” operating mode
With the “economy” operating mode (key 3, Economy
symbol), the thermostat regulates the heating or air-
conditioning system operation in order to keep always
the same economy temperature set.
The economy temperature set point may be changed
during operation by means of keys 1 and 2. Temper-
ature may be changed from 2 to 40 °C, by 0.1 °C
steps.
“OFF” Function (OFF / Antifreeze)
The “OFF” function is obtained by pressing key 4: in
this case the thermostat performs thermoregulation
on the antifreeze temperature set.
The display will show the message “OFF”.
In Winter mode, the antifreeze set point value may be
changed from 0.0 to 7.0°C by means of keys 1 and
2, by 0.1°C steps.
To quit the OFF function press key 3.

7
Conguration menu
By means of a pointed object, press the reset button
while simultaneously pressing the button .
When the display shows P01 (rst parameter), re-
lease the button .
The conguration parameters are represented on the
display by an index: P01, P02 …
Scroll through the indexes of the parameters by
pressing the buttons and .
Changing a parameter
Press the button to change a parameter. Change
the value of the parameter by pressing the buttons
and . To return to the indexes of the parameters,
press again the button .
To exit the parameters conguration, press the
buttons and until the displays shows “END”.
Press the button .
If no button is pressed for 1 minute, the thermostat
exits the parameters conguration.

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Parameter Default value Values
P01 Display modes 1 1 = ambient Temp. display
2 = set point display
P02 Displayed temperature value correction 0.0°C +/- 4°C (pitch 0.1°C)
P03 Lower limit of the winter set point 2.0°C 2.0°C … 40.0°C (pitch 1.0°C)
P04 Upper limit of the winter set point 40.0°C 2.0°C … 40.0°C (pitch 1.0°C)
P05 Lower limit of the summer set point 2.0°C 2.0°C … 40.0°C (pitch 1.0°C)
P06 Upper limit of the summer set point 40.0°C 2.0°C … 40.0°C (pitch 1.0°C)
P07 Differential adjustment 0.3°C
0.3°C … 2.0°C* (passo 0.1°C)
End Parameters saving and exit from parameters
conguration mode
*0.3°C for low thermal inertia systems, 2.0°C for highly reactive systems

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If, with the writing “End” on the display, you press simultaneously the keys + + , you enter the conguration
menu, used to manage the radio connection:
Parameter Default value Values
P08 Not used in CH115RF 1 1
P09 Upper part radio address (MSB).
If there are conicts for multiple CH115RF,
allows changing the radio address assigned
in production.
Performing a reset by pressing the keys “ar-
row up”+”OFF”, restores the address assig-
ned in production (MSB+LSB).
Progressive assigned
in production
0 … 255
P10 Lower part radio address (LSB). as above. “ “ 0 … 255
P11 Transmitter test.
Minutes of continuous ignition of the
transmitter.
0 0 … 30 minutes (pitch 1 minute)

10
Maintenance
To clean the thermostat use just a soft cotton cloth
and no detergent.
Installation
Thermostat installation operation sequence:
• Fastening the base.
• Fastening the thermostat onto the base.
• Fitting and replacing the batteries.
• CH173D self-learning procedure.
Caution: The thermostat shall be installed by quali-
ed personnel only, in compliance with the current
regulations in force.
Fastening the base
The thermostat comes with a base suitable for wall
mounting or for ush-mounting in three-module (503)
rectangular or round boxes.
SCREWS
BATTERY
COMPARTMENT
FASTENING
HOLES
MULTI-POLE
CONNECTOR
SPACING DIMENSIONS FOR FIXING THE BASE
Remove the top cover of the thermostat.
Separate the base from the thermostat front by re-
moving the screws by means of a proper tool and tak-
ing the front part off.
Fasten the base to the required surface by means of
the fastening holes provided for the purpose; make
sure the base is properly secured, without deforma-
tions and that the multi-pole connector is located at
right bottom corner.

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To ensure correct operation the base shall be installed
at about 1.5 meters above the oor level and far from
heat sources (e.g.: direct sunlight, etc.), doors and
windows.
Fastening the thermostat onto the base
Fit and screw the thermostat onto the base; make
sure the multi-pole connector ts properly.
Fitting and replacing the batteries
Fit two AA 1.5V batteries into the battery compart-
ment, according to the specied polarity: the negative
pole shall press the metal spring (located on the right
when viewing the thermostat from the front). Fit the
battery top cover back into place.
A pair of new batteries will usually last one year at
least. WHEN THE “low battery charge” SYMBOL
FLASHES ON THE DISPLAY, BOTH BATTERIES
SHALL BE REPLACED.
CH173D self-learning procedure
In order for the CH115RF and the CH173D to com-
municate correctly, a “self-learning” procedure shall
be performed. During this procedure the actuator will
recognize and store the CH115RF identity: from now
on it will be able to perform all of its controls while
leaving out the controls from other transmitters that
might be found in the area (please note that the
CH115RF/CH173D system range is approximately
30 meters in free air).
To perform the self-learning procedure, proceed as
follows: keep the CH173D key pressed for about 5
seconds, until the yellow LED starts ashing. Then
press the CH115RF RESET key using a pointed ob-
ject: a few seconds later the LED on the left side of
the CH173D will fast ash yellow and then it return
green with xed light, thus indicating that the self-
learning procedure is concluded.
N.B.: You can also control two or several CH173D ac-
tuators by means of one single CH115RF: of course
the self-learning procedure shall be performed on all
the CH173D actuators (not necessarily at the same
time).

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Power supply Two AA batteries (1.5V)
Outputs (CH115RF) RF module
Insulation Double
Protection IP20
Setting storage Non-volatile memory
Software Class A
Temperature regulation
range
2 °C – 40 °C
Max. temperature T45
Local indication LCD display
Local controls 5 keys
Dimensions (L x H x D) 135 X 83 X 21
Separate temperature
probe distance
10 m max
Reference thermal
gradient
4 K/h
Radio signal
characteristics
868.350 MHz <= 15mW
Max. signal range 30 m indoor, 70m outdoor
Technical data
Micro-disconnection 1B
Pollution degree 2
Impulse voltage 4000V
Compliant with the follow-
ing EC Directives
2006/95/CE , 2004/108/CE,
1993/68/CE
Compliant with the follow-
ing Standards
R&TTE EN 300 220-3, EN
60730-1, EN 60730-2-9
ErP classication: ErP Class IV; 2% (EU Reg. 811/2013
- 813/2013)
Fantini Cosmi S.p.A. reserves the right to make what-
ever technical and manufacturing modication with-
out prior notice.

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NOTENOTES

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NOTENOTES

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DISPOSAL OF PRODUCTS
The crossed out wheeled dust bin symbol indicates that products must be collected and disposed of
separately from household waste. Integrated batteries and accumulators can be disposed of with the
product. They will be separated at the recycling centres. The black bar indicates that the product was
placed on the market after August 13, 2005. By participating in separate collection of products and
batteries, you will help to assure the proper disposal of products and batteries and thus help to prevent
potential negative consequences for the environment and human health. For more detailed information
about the collection and recycling programmes available in your country, please contact your local city
ofce or the shop where you purchased the product.

GB79351E
FANTINI COSMI S.p.A.
Via dell’Osio, 6 20090 Caleppio di Settala, Milano - ITALY
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