Vemer Chronos RF Bianco, VE484200, Chronos RF Nero, VE485900 User Manual

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

■ Dimensions Page 3

■ Connection diagram Page 3

■ Safety warnings Page 4

■ Technical specifications Page 5

■ Display and keyboard Page 6

■ Installation Page 7

■ Programming menu Page 11

- Time and date modification Page 11

- Programs modification Page 11

- Temperatures T1, T2, T3 modification Page 13

- Timing setting Page 15

- Advanced functions menu Page 16

- Radiofrequency menu Pagina 19

■ Manual operation Page 20

■ Off operation Page 21

■ Minimum and maximum value Page 22

■ Summer time change Page 22

■ Regulation type Page 24

■ Timings: what they are Page 26

■ Instrument reset Page 28

■ Battery replacement Page 28

■ Reference standards Page 29

■ Default values Page 30

■ Winter preset programs Page 31

■ Summer preset programs Page 32

Index

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

Radiofrequency digital chronothermostat CHRONOS RF

• Touch screen display of capacitive
type (sensible to the fi ngers’ touch)

• Summer and winter operating mode

• Models available in white and black
colours

• 7 programs available for the heating
mode
7 programs available for cooling
mode

• Integrated radiofrequency module

• Weekly programming with 3
different settable temperatures

• Wall-mounting or
to coverage of box 503

CHRONOS RF Radiofrequency digital chronothermostat User Manual

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

DIMENSIONS

CONNECTION DIAGRAM

For more detailed information about the instruments configuration see
chapter “Installation” page. 7 and “Radiofrequency menu” on page 19.

Load activation occurs through the remote actuator controlled by the chronothermostat
by means of a radiofrequency signal.

Chronos RF

LoadRemote actuator

1 or more channels

Chronos RF

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

■ During product installation and operation it is necessary to observe the

following instructions:

1) The instrument must be installed by a qualified person, in strict compliance
with the connection diagrams.

2) Do not power the instrument if any part of it is damaged.

3) The instrument must be installed and activated in compliance with current
electric system standards.

4) Do not use the instrument for purposes different from the one specified.

5) In case of malfunction do not perform repairs and contact immediately the
technical support.

6) The instrument can be used in environments with category of measurement III
and pollution degree 2.

Code Model Description
VE484200 Chronos RF Bianco Radiofrequency touch screen chronothermostat white
VE485900 Chronos RF Nero Radiofrequency touch screen chronothermostat black

SAFETY WARNINGS

Chronos RF is a weekly touch screen electronic chronothermostat to regulate the

ambient temperature both in heating and cooling to control a remote actuator through
a radiofrequency signal.
Powered by two batteries of AAA type, Chronos RF doesn’t need any wiring. This
allows to install the thermostat anywhere inside your room, without any intervention
of masonry.
The wide touch screen display with backlighting on by pressing a key allows a clear
viewing even in the dark.

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

TECHNICAL SPECIFICATIONS

• Power supply:

– 2 alkaline batteries 1.5 V (AAA type)
– battery life: 1 year
– battery charge level indication
– charge reserve (for battery replacement): 1 minute

• Wall mounting or to coverage three-module in built box

• Temperature regulation:

– On/off with hysteresis setting between 0,1 °C and 1°C
– Proportional with settable band and period

• Summer (cooling) / winter (heating) operating mode

• Weekly programming (7 programs available for each operating mode)

• Daily resolution: 1 hour (possibility to set delay activation of 15, 30, 45 minutes

independent for each hour)

• 5 settable temperatures:

– T1, T2, T3 in automatic operation
– Tm in manual operation
– Toff in off mode (antifreeze)

• Measured temperature display: 0 ÷ 50 °C

• Measurement precision: ±0.5 °C: ±0.5 °C

• Measured temperature resolution: 0.1°C

• Setpoint range: 2 ÷ 35 °C

• Clock precision: ±1 second/day

• Summer/winter time automatic change (excludable)

• Operating temperature: 0 ÷ +50 °C

• Storage temperature: -10 ÷ +65 °C

• Operating humidity: 20÷90% non condensing

• Touch screen display with backlighting on with a key touch.

• Password protected lock keypad

• Communication with the actuator through a radiofrequency signal 433.92 MHz

• Maximum distance between thermostat and actuator: 50 m in free field

• Protection degree: IP40

• Insulation: reinforced among accessible parts (frontal) and all other terminals

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

① Day of the week (DAY 1 = Monday)
②

Programming menu:

: date/time and summer time setting
: programs change mode (for automatic operating)
: temperatures setting T1, T2. T3
: timing menu
: advanced programming menu
: not used
: radiofrequency transmission menu

③

Time and minutes

④

Load activation in summer mode/ cooling

⑤

Manual operation activation

⑥

Load activation in winter mode/heating

⑦

Measured environment temperature

⑧

Program on graphic for the current date (in automatic operation)

⑨

Off operation

⑩

Depleted battery indication

⑪

Keyboard (the keys are active only if the instrument is correctly installed on

wall-mounted base)

DISPLAY AND KEYBOARD

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

■

Keyboard

The keys carry out different functions on the basis of the instrument status and they
will be described step by step in this user manual.
Multipurpose keys are not built into the instrument, that is to say contemporary
pressures of 2 or more keys.
There are two types of pressure:

- brief pressures,

- long pressures, with duration higher than 3 seconds.

During the press of a button, the display is blue.

Attention: press the keys with your fingers, do not use sharp objects!

Attention: the keys are active only if the instrument is hooked to the base

■ Cleaning the display

To clean the display use a soft, lint-free cloth, without using excess force.

INSTALLATION

• Association between Chronos RF and remote actuator

Because the Chronos RF and a remote actuator can communicate correctly, it’s
necessary to perform a procedure called “self-learning”, during which the remote
actuator recognizes and stores the identity of Chronos RF.

To perform the self-learning proceed as follows:

1. Activate the channel configuration of the remote actuator (see the instructions).
The actuator remains in configuration mode for a pre-set time, within which it must
receive the configuration string from Chronos RF.

2. Insert the batteries in the Chronos RF, respecting the polarity indicated on the
instrument (to access the batteries compartment it’s
necessary to unhook the thermostat from the base by
pressing the tab at the bottom of the instrument).

After about 3 seconds the Chronos RF initiates the

configuration procedure (indicated by (onf on the
display) followed by a short test procedure (indicated
by Test on the display) where Chronos RF sends the
sequence on-off-on-off to the actuator.

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

3. Upon receipt of the configuration string, the remote actuator is configured and
resumes the normal operation while the Chronos RF requires date and time
insertion ( the programming keys will be active only after you have hooked the
thermostat at the base)

Note: to associate a second remote actuator, activate the configuration of

the actuator channel and, while this last is in configuration mode, remove
the thermostat from the base and re-put it (the cronothermostat starts the
configuration procedure to which follows the testing procedure).

• Indications for placement

The Chronos RF is designed for wall-mounting installation or to cover the 503 box

1

1

2

Fix the base on the wall using the screws
supplied.

Attach the chronothermostat to the base,
at first mating teeth first placed on the
upper side.

Place the chronothermostat at a height at about 1.5 m above the floor, away from
direct sunlight, away from doors, windows, heat sources, locations with excess or total
lack of aeration.
The actuator is usually placed near the boiler to pilot.

Attention: the maximum distance between Chronos RF and remote actuator is about
50 m in free field. This value is reduced if there are obstacles in the middle (for
example, reinforced concrete walls).

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

• Clock setting

Once the instrument is mains powered, set the clock (time and date insertion).
The parameters to enter are the following:
seconds (only synchronisation at value 00), minutes, hours, year, month, day.
Use the keys

and to increase and decrease the values and the key to

confirm and to move to the next parameter.

Seconds synchronisation

Minutes setting

Time setting

Year setting

Month setting

Day setting

Once all values are set, press for a long time (3 seconds) the key

to exit the menu

of the clock synchronisation.

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

At this point the chronothermostat
will begin to operate with the set
default parameters (see page

33) displaying the day of the

week, the time, the environment
temperature and the graphic of
the program on.

When Chronos RF sends an on
or off command to the remote
actuator, icon

(field 2) lights

for a moment.

DAY

TEMPERATURE

HOUR

Attention:
To operate correctly the chronothermostat requires the time and date
insertion.

If once mains powered, no value is
set within about 30 seconds, the
chronothermostat begins to operate in
off mode, displayed with the symbol

. The time lack is displayed with

flashing dashes ( _ _:_ _ ).

The chronothermostat remains in off operation condition until when the hour
is not inserted, ensuring in this way the saving of the antifreeze temperature
(6°C).

In this condition, the pressure of any key reactivates the menu of date/time
insertion for other 30 seconds about.

PROGRAM

GRAPHIC

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

PROGRAMMING MENU

With this menu it’s possible to modify the
following operating parameters:

- Date and time

- Automatic operation programs

- Automatic operation temperatures

- Timings

- Advanced functions.

- Radiofrequency menu

Time and date modification

To modify the hour and the date set:

1. From normal operating display, press for a long time the key

until the symbol

starts flashing on field (2)

2. Press the key

to access parameters modification. The seconds field starts

flashing. Parameters sequence to set:

seconds* -> minutes -> hours -> month ->day

3. Use the keys

and to modify the values and the key to confirm moving to

the next parameter.

(*) for seconds it’s possible only the synchronisatin at value 00

4. Once all parameters are set, to exit and to go back to the programming menu, press
a short time the key

.

To exit and to go back to the normal operating (automatic, manual) press for a long

time

or wait for the time-out expiration (30 seconds about).

Inside this menu it’ s also possible to modify the parameters for winter/
summer time change. The procedure is described in a detailed way in the
chapter “Summer time change” on page 22.

Programs modification

This menu allows to modify the programmings of the automatic operation.
In default status the instrument is configured to perform the program P1 from Monday

3s

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to Friday and P2 on Saturday and on Sunday (the programs profile is described at the
end of this manual on page 34-35).
If this programming doesn’t satisfy the user needs it’ s possible to change it.

To modify the programming:

1. From the normal operation display, press for a long time the key

until the

symbol

starts flashing on field (2)

2. Press for a short time the key

until the symbol flashes and press the key

to access the parameters modification.

3. The programs page is displayed:

the first day of the week (DAY 1) flashing,

the current program (for example P1) of the
current operating mode (

o ) and the

corresponding profile of the program.

3.1. If the set program is good, move to the

next day with the keys

and .

3.2. If the set program is not good, press

the key

.
The set program flashes: choose a
different program among the 7 available
programs pressing the keys

and .

3.2.1. If no program exactly satisfies the
user’s needs, choose any program
which best meet them and
press the key

to access the
modification of the program profile.
On field (3) 00:00 appears while
on field (7) flashes the temperature
level (T1, T2 o T3) set for that
specific time (00:00).

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Use the keys and to change
the temperature level and the key

to move to the next hour. Set like
this the desired level temperature
for each hour of the day.

3.2.1.1. For each hour it’ s possible to
delay the start of th regulation of
15’, 30’ or 45’
After setting the temperature
as described above, press for
a long time the key

to set
a delay.
The minutes field flashes (field

3): set with the keys

and
the delay and press the key
to move to the next hour.

4. When the program satisfies the user’s needs, go back to the days pressing twice
the key

and repeat for the other days of the week the operations.

When all modifications have been performed, exit the programming menu pressing

for a long time the key

.

Temperatures T1, T2, T3 modification

To modify the 3 temperatures of automatic operation:

1. From the normal operation display, press for
a long time the key

until the symbol

starts flashing on field (2)

2. Press for a short time the key

until the

symbol

flashes. Press the key to

access the parameters modification.

3s

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

3. The value of the flashing T1 temperature is
displayed. Modify the value with the keys

and and press the key to move

to the modification of T2.

4. The value of the flashing T2 temperature is
displayed. Modify the value with the keys

and and press the key to move

to the modification ofi T3.

5. The value of the flashing T3 temperature is
displayed. Modify the value with the keys

and and press the key to go

back to the page of T1 temperature.

6. Once all parameters are set, to exit and to
go back to the programming menu, press
for a short time the key

.

To exit and to go back to the normal

operation press for a long time the key

or wait for the time-out expiration (30

seconds about).

Attention: the values of set temperatures

must respect the condition:
T1 ≤ T2 ≤ T3.
In cooling mode T1 is not
settable and equals off system.

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

Timing setting

This menu allows the setting of a timing on the current operating mode, expressed in
hours and days.

For further information about timings, see the chapter “Timings: what they
are” on page 26).

To set a timing:

1. From the normal operation display, press for a long time the key

until the

symbol

starts flashing on field (2)

2. Press for a short time the key

until the

symbol

flashes and press the key to

access the parameters modification.

3. The value of the timing currently set
flashes (00= no timing). Enter the timing
value (from 1 to 99) with the keys

and

and press the key to move to the

measurement unit change (hours and days).

4. The measurement unit starts flahing (hour
or day). Press the keys

and to
choose a timing in hours (hour) or days
(day).

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

5. Once all parameters are set, to exit and to go back to the programming menu, press
for a short time the key

.

To exit and to go back to the normal operation (automatic, manual) press for a long

time the key

or wait for the time-out expiration (30 seconds about).

If a timing is active, the display shows the symbol

.

To interrupt a timing, access again the menu and set the value 00.

Advanced functions menu

With the ADV menu it’s possible to modify the
following operation parameters:

- operating mode (heating or cooling)

- regulation type (on-off or proportional)

- parameters relative to regulation type

- antifreeze temperature

- password for key lock

- system operation hours.

To access the menu ADV:

1. From the normal operation display, press for a long time the key

until the

symbol

starts flashing on field (2).

2. Press for a short time the key

until the symbol starts flashing and press the

key

to access the parameters modification.

3. At this point the first parameter of the menu starts flashing:

press the keys

and to modify the parameter and the key to confirm and
to move to the next parameter.
To exit the parameters modification press the key

.

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

Operating mode

This parameter allows to specify the operating mode of the chronothermostat, between
winter-heating (

) and summer-cooling ( ).

For further information about the operating mode see the chapter “Regulation
types” on page 24.

Regulation type (only for heating mode)

For heating mode it’s possible to choose between on/off regulation (Reg 0) or
proportional (rEg P) or proportional programming (reg tP) to use if the remote
actuator is a valve for ThermoPro RF radiators).

For further information about regulation type see the chapter “Regulation
types” on page 24.

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Regulation parameters

In case of on/ off regulation the only parameter to set is the hysteresis (dIF), which
can have values between 0.1°C e 1°C.

In case of proportional regulation the parameters to set are the regulation band (bnd) e
il periodo di regolazione (PEr).

For further information about how to choose these values see the chapter
“Regulation types” on page 24.
But remember that the preset settings are suitable for the most part of the
situations: to change these settings only if it’s really necessary.

Antifreeze temperature (only for heating mode)

For the heating mode it’s possible to set a safety
temperature (antifreeze temperature – 0ff) to
maintain also if the chronothermostat is
switched off.
It’s possible to choose a value between 1°C
and 10°C. It’s also possible to deactivate the
antifreeze function pressing the key

until

the display shows “

_-.-

”. In this case, if the
chronothermostat is switched off, no safety
temperature is maintained.

Password for key lock

It’s possible to set a key lock if the
chronothermostat is installed in public places
or however if you want to prevent anyone from
modifying the operation parameters.

To set a password, enter on field PAs a value
between 001 and 999. To deactivate the password
press the key

until “__ . _” appears.

When the keyboard is locked, the thermostat performs all its functions using the set
regulation parameters.

Radiofrequency menu

The radiofrequency menu RF allows you to manage communication between Chronos
RF and remote actuator. In particular it is possible to make a communication test.

Test - test

The test is used to verify the correct communication between Chronos RF and actuator
and can last 10 minutes at max.
To activate it, choose test key and press the key

for at least 3 seconds.

During the test the commands of on and off are sent to the actuator every 10 seconds.

You can stop the test by pressing the key

for at least 3 seconds.

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If the key lock is active and one key is pressed, the display shows for a few seconds
the writing bLoc with flashing dashes: enter the password to unlock the keyboard,
which will be locked for 30 seconds from the last pressure.

System operation hours

This page shows the total number of hours of the
system operation (relais ON) for the current mode
(indicated by the icons

o ).
The hour meter has got 4 digits and it’s resettable
pressing for a long time the key

until 0000

appears.

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

MANUAL OPERATION

During manual operation the instrument performs as a normal thermostat, adjusting
on the basis of the Tm temperature (manual setpoint), independently from the day and
the time where it is.
The manual operation is signalled with the switch on of the symbol

on field (5).

To move from the automatic operation to the manual one:

1. press for a short time the key

. In the field (7) the setpoint (Tm) currently set

flashes

2. set the desired setpoint with the keys

and and confirm with the key

3. at this point on field (7) the value of the environment temperature reappears and

the instrument operates in manual.

If you want to change the setpoint (Tm) press the key

and repeat the points 2 and 3.

To go back to the automatic operation press

for a long time

the key (about 3

seconds).

Automatic
operation

Manual setpoint
(Tm) setting

Manual operation

3s

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

OFF OPERATION

In off mode the instrument doesn’t perform any regulation (*) but it continues to display
the day, the time and the measured temperature.

(*) When in heating / winter mode the instrument maintains a minimum
temperature - Toff antifreeze temperature - to avoid the freezing of the
systems where the instrument is installed.
Toff can have values between 1°C and 10°C or it can be completely shut
down; in this last case the saving of minimum temperature is not guaranteed.
The set default Toff is 6°C but it’s possible to modify this value entering the
ADV menu (see “Antifreeze temperature” page 18).

To switch the instrument off press the key

until the symbol is displayed (field

(9)).

To reactivate the regulation, switching back to the operating (automatic or manual)
which is before the switching off, press the key

for about 3 seconds.

3s

3s

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MINIMUM AND MAXIMUM VALUE

It’s possible to display the measured values of minimum and maximum temperature. To
display these values press the key

(maximum value Hi) or (minimum value L0).

During the display it’s possible the resetting of these values pressing the key

until 3

dashes appear in place of the temperature.

SUMMER TIME CHANGE

Summer time is the convention to step up of one hour the dials of the clocks during the
summ er period in order to prolong the lighting time in the late afternoon to the loss of the
early morning.
In European countries summer time starts the last Sunday of march and ends the last
Sunday of october.

The chronothermostat manages the summer/winter time change as follows:

- increasing of one hour to move from winter time to summer time

- decreasing of one hour to move from summer time to winter time

In off status the instrument is configured to move from summer time the last Sunday of
march at 02:00 o’ clock to go back to winter time the last Sunday of October at 03:00 o’
clock in accordance with Europe convention.
However it’s possible to deactivate the automatic time change or to change the date and
the hour of the time change.
To change settings:

1. access the menu of time and date change, pressing for a long time the key

until the

symbol

starts flashing.

2. press the key

to access the time and date modification. At this point, during the

modification of any parameter (seconds, minutes, hour, year, month or day) press for a

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long time the key until the display shows
the writing Aut0 appears on field (3).

3. Choose with the key

and the

automatic time change activation (Aut0 0n)
or its deactivation (Aut0 0FF) and confirm
with the key

.

4. If 0FF we go back to the date/time change;

if 0n the current setting for the passage to
summer time is displayed (indicated with the
symbol

). In the example:

a. the Sunday (7) of the last week (LA) of

march (03 ) at 2 o’ clock (02)

b. b. if it’s necessary change the parameters

with the keys

and and move to

the next parameter with the key

. The

sequence requires the insertion of:
i. day (1…7) of the week
ii. the week of the month (first, second,

third, fourth, last – LA)
iii. the month (1…12)
iv. the hour

5. press the key

the current setting for
the passage to the winter time is displayed
(indicated with the symbol

). In the

example:

a. the Sunday (7) of the last week (LA) of

october (10) at 3 o’ clock (03)

b. if it’s necessary change the parameters

with the keys

and and move to

the next parameter with the key

. The

sequence requires the insertion of:
i. day (1…7) of the week
ii. the week of the month (first, second,

third, fourth, last – LA)
iii. the month (1…12)
iv. the hour

6. Once all parameters are set, to exit and to go

back to the programming menu, press for a
short time the key

.

To exit and to go back to the normal operation

press for a long time the key

or wait for

the time-out expiration (30 seconds about).

3s

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REGULATION TYPE

The Chronos has got two types of regulation:

• ON/OFF regulation

During ON/OFF regulation the chronothermostat measures once a minute the

environment temperature and it carries out the regulation on the basis of the
following logic:

relay ON

SET-DIFF SET

relay OFF

Temperature
increasing

relay ON

SET+DIFFSET

relay OFF

Temperature
increasing

heating mode cooling mode

where SET represents the setpoint and DIFF the hysteresis (useful to avoid

continuous switches on/switches off dangerous for the system in proximity to the
reaching of the setpoint).

• Proportional regulation (only in heating)

In heating mode, the on/off regulation is available and also the proportional

regulation which in some systems allows a more precise regulation to obtain a
constant temperature.

This regulation requires to specify two parameters:

- the band, which represents the temperature values with whom to perform the

proportional regulation. The band is centered on the setpoint and it can have
values between 0.5°C and 5°C; outside these values the heating will be always
on (if setpoint-band > environment temperature) or always off (if setpoint + band
< environment temperature).

- The regulation period which represents the duration of the regulation cycle

(activation time + deactivation time of heating) and it can have values of 10, 20
or 30 minutes.

During the operating, at the beginning of the regulation period, the instrument

measures the environment temperature and it compares it with the programmed
setpoint; on the basis of this difference the activation time is calculated (and
consequently the deactivation time). The more the measured temperature is next

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

to the setpoint value – band, the more the activation time will be predominant in
comparison with the deactivation time; on the contrary, the more the measured
temperature is next to the setpoint value + band, the more the deactivation time
will be predominant in comparison with the activation time).

Once regulation period is passed, the instrument compares again the environment

temperature with the setpoint and it updates the activation and deactivation times
for the new period.

The result of the proportional regulation is subordinated to the correct selection of

the parameters.

Select the value of the regulation type as follows:

- 10’ for low thermal inertia systems (fan-coil)

- 20’ for medium thermal inertia systems (aluminium radiators)

- 30’ for medium thermal inertia systems (aluminium radiators)

Select the regulation band value as follows:

- broad band (5°C) for systems with high thermal gradient

- narrow band (0.5°C) for systems with low thermal gradient

Attention: in default status the instrument is confi gured to operate in on/

off with hysteresis set at 0.3°C. This confi guration is suitable for the most
part of the situations and for this reason it’s advisable to modify it only in
particular situations.

To modify the regulation type, hysteresis values (on/off regulation), band and
period (proportional regulation) see “Regulation parameters” at page 18).

• tP regulation

Note. This regulation should be used only if you are controlling a valve for

ThermoPro RF radiators.

This type of regulation allows you to make the ThermoPro RF valve work “by the

opening modulation”. In this way, the valve opens in proportional mode according
to the difference between the set temperature (setpoint) and the detected
temperature.

Selecting one of the other regulation types, the valve will not work in proportional

mode, but it will be completely open or completely closed according to the
difference between the set temperature and the detected temperature.

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• Emergency regulation (for heating mode only)

The instrument performs a regulation of emergency if an error occurs during the

reading of the probe or in case of time loss.

In case of probe error, if the antifreeze function is not deactivated, the instrument

activates the load for 10 minutes every 4 hours. The display shows the writing Err
on field (7).

In case of time loss (because of depleted batteries or blackout of a duration higher

than the charge reserve) the instrument restarts from the off mode, adjusting on
the basis of the antifreeze temperature, if it hasn’t been deactivated before. Reset
date/ time to go back to the normal operation (programs modifications and settings
remain memorized).

TIMINGS: WHAT THEY ARE

Timings allow to maintain the current operation (automatic, manual, off) for a certain
period (times or days) and once passed the chronothermostat changes the operating
mode, as explained below.

The timed operations are the following:

Timed automatic

If in automatic status you set a timing, such off status will be maintained until the end
of the timing; operation will then switched to off mode.

Timed manual

If in manual status you set a timing, such off status will be maintained until the end of
the timing; operation will then switched to automatic mode.

English

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

Timed off

If in off status you set a timing, such off status will be maintained until the end of
the timing; operation will then switched to the one active before the deactivation
(automatic or manual).

If you set a timing, the display shows the symbol .

Attention: the timing is calculated in minutes and for this reason if for
example you set a timing of 3 days at 12:15 on Tuesday it will expire at 12:15
on Friday.

Attention: the timings can end before their programmed expiration if one of these
actions occur:

- time/ date modifi cation (modifi cation of the summer time change included)

- manual modifi cation of the operating mode

- switching of digital input (only for battery models)

- change of the operating logic from winter to summer (or viceversa)

To set a timing, see chapter “Timing setting” at page 16.

English

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

BATTERY REPLACEMENT

The Chronos RF signals the status of depleted batteries switching on the symbol
(field (10)) and making the display to flash.
In this status the regulation is always guaranteed, but it’s advisable to replace the
batteries as soon as possible! (*)

If the charge level of batteries further decreases, the chronothermostat enters into less
consumption mode, it switches off the display and it doesn’t perform any regulation.

(*) Remove the depleted batteries and replace them with the new ones in a maximum
time of one minute (charge reserve) to avoid to lose the settings of date and time
(the performed programmings on the contrary remain memorized even if this limit is
surpassed).

Attention: after batteries replacement, the display will switch on within 15
seconds at max.

!

Dispose of the used batteries observing the laws in force

in relation to the disposal of hazardous waste.

INSTRUMENT RESET

If you want to erase all performed settings and to recharge the default values, proceed
as follows:

1. to switch off and to switch on the power of the chronothermostat (230 V versions)

or to disconnect the time thermostat from the wall-mounted base and reconnect it
(battery versions).

2. during the flashing of the keys press the key

until the display shows the writing

dEF.

Default values are indicated on page 30 of this manual.

English

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

REFERENCE STANDARDS

Compliance with Community Directives:
2014/53/EU (RED). 2014/30/EU (EMCD)
is declared with reference to the following harmonized standards:

• ETSI EN 300 220-1 • ETSI EN 300 220-2

• ETSI EN 301 489-1 • ETSI EN 301 489-3

English

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

DEFAULT VALUES

Parameter min max step default

winter manual
setpoint

2.0°C 35.0°C 0.1°C 21°C

summer manual
setpoint

2.0°C 35.0°C 0.1°C 25°C

T1 winter 2.0°C T2 0.1°C 15.0°C
T2 winter T1 T3 0.1°C 18.0°C
T3 winter T2 35.0°C 0.1°C 21.0°C
T2 summer 10.0°C T3 0.1°C 23.0°C
T3 summer T2 35.0°C 0.1°C 25.0°C
antifreeze temperature 1.0°C 10.0°C 0.1°C 6.0°C
operating mode winter summer - winter
regulation type ON/OFF PROP - ON/OFF
ON/OFF hysteresis 0.1°C 1.0°C 0.1°C 0.3°C
proportional band 0.5°C 5.0°C 0.1°C 0.5°C
proportional period 10’ 30’ 10’ 10’

password 0 999 1

000

(deactivated)
winter hour meter 0 1 0
summer hour meter 0 1 0
summer hour meter,

enable

ON OFF - ON

winter/summer time
change

Summer:

LAST DAY7

march 02:00
Winter: LAST

DAY7 october

03:00

activation delay 0’ 45’ 15’ 0’

timed operations 0h 99d 1h 0h

English

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

WINTER PRESET PROGRAMS

P1

T3

■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P2

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P3

T3

■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P4

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P5

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P6

T3

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P7

T3

T2

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

English

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CHRONOS RF Radiofrequency digital chronothermostat User Manual

SUMMER PRESET PROGRAMS

P1

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P2

T3

■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P3

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P4

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P5

T3

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P6

T3

T2

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

P7

T3

T2

T1

■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■

0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

V3IS00714-020

Vemer S.p.A.

I - 32032 Feltre (BL)
Via Camp Lonc, 16
Tel [phone]
Fax [phone]

e-mail: [e-mail] - web site: www.vemer.it

07-2016