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buttons will always have priority over the commands received 

from the telephone interface.

If you press the ‘     ’ or ‘     ’ button on the chronostat, the device 

will change its status and the ‘        ’ icon will flash to indicate that 

the interface command has been overridden by a command input with 

a control button.

The ‘      ’ icon will stop flashing if the telephone interface sends the 

chronostat the same command as the one made with the button or 

if the telephone interface is reset. In such a case the status set by 

means of the control button will not be changed and the chronostat 

will be ready to receive a new command.

IMPORTANT

If an Off command is sent to the chronostat via the telephone 

interface  (contact  open),  it  is  a  good  idea  to  check  that  the 

command has been executed by the chronostat by carrying out 

the following realignment procedure:

1. Using the functions of the telephone interface, check that the 

contact is open, sending an Off command if necessary.

2. Send  a  command  to  the  telephone  interface  to  close  the 

contact (the chronostat will turn on).

3. Using the functions of the telephone interface, check that the 

contact is closed.

4. Send  a  command  to  the  telephone  interface  to  open  the 

contact (the chronostat will turn off).

During  this  sequence  no  commands  should  be  input  with 

the  control  buttons  as  they  have  priority  over  the  interface 

commands.

TECHNICAL CHARACTERISTICS 

Power supply:     

2 x 1.5V, alkaline batteries (Type AA)

Battery life: 

   

> 2,5 years

Frequency:   

 

868,150 MHz

Modulation:   

 

GFSK

Effective radiated power (ERP): < 1 mW

Antenna type: 

 

Internal

Max. receiver distance: 

>300 m in free air

 

 

 

>50  m  in  buildings  (depending  on 

the building and environment)

Room temperature

Regulation range:

 

comfort: 

5,0 .. 35,0°C

 

economy: 

5,0 .. 35,0°C

Hysteresis:   

 

0,2°C adjustable 0,1 .. 5,0 °C

Sensor type:  

 

NTC 4K7 ohm ±1% @ 25°C

Resolution:   

 

0,1°C  (T > 0,0°C)

 

 

 

0,2°C  (T < 0,0°C)

Range: 

 

 

-9,9°C .. +50,0°C

Precision:   

 

±1,0°C

Floor temperature (external sensor)

Regulation range:   

Lower limit: 10 .. 30°C

 

 

 

Upper limit: 35°C .. 50°C

Sensor type:  

 

NTC 4K7 ohm ±1% @ 25°C

Resolution:   

 

0,1°C  (T > 0,0°C)

 

 

 

0,2°C  (T < 0,0°C)

- ENGLISH -

Summary of Contents for N CTA W

Page 1: ...CRONOTERMOSTATO SETTIMANALE VIA RADIO WIRELESS WEEKLY CHRONOSTAT ...

Page 2: ...ramming sets the regulation temperature into Economy mode E Button with double function In normal operation turns on and off the chronostat In schedule programming sets the regulation temperature into Off Antifreeze mode F Button with double function In normal operation displays current time or temperature In schedule programming sets the regulation temperature into Comfort mode G Forward button H...

Page 3: ...mfort mode The chronostat is in programming mode Flashing Cleaning program active the remaining time is shown on the display Flashing Vacation program active the remaining time is shown on the display Fixed Indicates that the telephone interface is active Flashing Indicates that the remote command received by the telephone interface has been overridden by another local request through the chronost...

Page 4: ...DLES OR TOOLS THAT COULD IRREPARABLY DAMAGE THE CHRONOSTAT The buttons present beneath the lower flap are 3 OK For programming the time and current day of the week I in Fig 1 Forward G in Fig 1 Back L in Fig 1 Setting the current time and day To set the clock of the chronostat carry out the following steps 1 Open the flap of the battery compartment 2 Keep the OK button pressed for at least 2 seconds...

Page 5: ... to the receiver with a pause of 2 seconds between one and the next Everytime a command is trasmitted the symbol flashes on the display The Test mode can be exited in the user menu or switching off the chonostat by pressing the button In any case the Test mode will end automatically after approximately 17 minutes The Test mode must be used to self learn the address code of the chonostat on the rece...

Page 6: ...23 INSTALLATION Fig 2 Fig 3 Method for releasing the wall mount plate from the base of the chronostat ENGLISH ...

Page 7: ...he plate and then pressing downward on the device until the plastic teeth of the plate click into place then fix the chronostat body to the wall mount plate through the two screws supplied which must be mounted in the battery holder Fig 3 5 Insert the batteries in the battery compartment O in Fig 1 see paragraph HOW TO INSERT REPLACE THE BATTERIES WARNING To adjust properly room temperature install...

Page 8: ...me schedule from 0 00 to 12 00 AM with half an hour steps while the dashes line in the bottom shows the time schedule from 12 00 to 24 00 PM The dashes show the operating mode of the chonostat Comfort Economy Off Antifreeze for every half an hour of the day as shown in the following P Economy mode one dash lit bottom Comfort mode two dashes lit Off Antifreeze mode no dashes lit Days of the week 1 ...

Page 9: ...Comfort mode Economy mode 6 00 8 00 8 00 11 00 11 00 13 00 13 00 17 00 17 00 19 00 19 00 21 00 21 00 23 00 23 00 6 00 FIRST TIME SLOT Comfort mode Economy mode 6 00 23 00 23 00 6 00 SECOND TIME SLOT Comfort mode Economy mode 6 00 8 00 8 00 17 00 17 00 23 00 23 00 6 00 THIRD TIME SLOT Comfort mode Economy mode 6 00 8 00 8 00 11 00 11 00 13 00 13 00 17 00 17 00 23 00 23 00 6 00 3 Press the OK button...

Page 10: ...the device will automatically exit the schedule programming mode QUICK GUIDE FOR SETTING THE TIME SCHEDULE Press button P The display shows PrOG with the icon turned on Press button OK The display shows dAY Press buttons and in order to choose one of the four days combinations available as pre set Press button OK to confirm the choice The display shows hour 00 00 with the relevant dash in the upsid...

Page 11: ... SETTINGS The advanced parameters menu allows the installer to configure the chonostat s working Toaccesstheadvancedparametersmenuselectthe MOrE parameter and keep pressed for 2 seconds the OK button the display will show the first advanced parameter Pressing repeatedly the P button the following advanced parameters will be scrolled OFS Room temperature offset HISt Room temperature regulation hyster...

Page 12: ...chronostat will be able to take into account a minimum and a maximum floor temperature limit during the room temperature regulation The parameter can be set with the following values no No external sensor wired rOOM External sensor wired to read room temperature FLOH External sensor wired to read floor temperature but it can not be shown on the display FLOS External sensor wired to read floor tempera...

Page 13: ...he associated thermostats If the chronostat is regulating a comfort temperature the associated thermostatswillregulateaccordingtotheirsetpointknobtemperature instead if the chronostat is regulating an economy temperature the associated thermostats will regulate according to a reduction temperature which can be adjusted in the receiver Likewise if the chronostat is off with 5 C antifreeze function ...

Page 14: ...ed and the chronostat is in heating mode the display will show also the symbol and the room temperature will be regulated according to the antifreeze value set in the relevant parameter see paragraph USER MENU SETTINGS HOW TO INSERT REPLACE BATTERIES The battery charge status is constantly displayed by means of the symbol The battery charge is at a maximum if all three level indicators are lit ins...

Page 15: ...refore it is normal that the displayed temperature is not updated immediately and one need to wait up to 3 minutes to see the output switching On or Off Alternatively pressing OK button when in the main screen the user can force an update For the same reason at the expiry of the time schedule s half hour there will not be an immediate switch of the output it will be necessary to wait up to 3 minut...

Page 16: ...sending an Off command if necessary 2 Send a command to the telephone interface to close the contact the chronostat will turn on 3 Using the functions of the telephone interface check that the contact is closed 4 Send a command to the telephone interface to open the contact the chronostat will turn off During this sequence no commands should be input with the control buttons as they have priority ...

Page 17: ...o the remote sensor 15 m Antifreeze OFF 0 5 C 25 0 C Default 3 0 C Offset 5 0 C Default 0 0 C Backlight turns off 20 sec after the last pressing of a button Protection rating IP 30 Insulation class II Number of manual cycles 1 000 Operating temperature 0 C 40 C Storage temperature 10 C 50 C Humidity limits 20 80 RH non condensing Enclosure Material ABS PC V0 self extinguishing Colour Cover Signal ...

Page 18: ..._______________________ ________________________________________ ________________________________________ ________________________________________ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _...

Page 19: ... IST01540AAN 019584A0 200711 ...

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