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OPERATION 

User Manual

RADIOFREQUENCY ELECTRONIC TOUCH SCREEN THERMOSTATS

 

Read carefully all the instructions

DIMENSIONS

INSTRUMENT DESCRIPTION

INSTALLATION

2

Advanced programming

Reset

Setpoint modification

Depleted batteries signal

Error messages

Thalos RF

  

Ambient temperature display

  

Active off-mode indicator

  

Boiler activation indicator (heating mode) 

  

Air conditioner activation indicator (cooling mode)

  

Programming  keys

USE, CLEANING AND MAINTENANCE

Press the keys with your fingers. The use of sharp objects may cause damage to

the instrument. 
To clean the display use a soft, slightly damp and lint-free cloth, without using 

excessive force.

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

Switch off

Normal operation

Note: in heating mode (winter), if the Thalos RF is off, it regulates the antifreeze 

Toff

 

temperature in order to prevent freezing of the system.

Toff

 can have values from 1 to 10° C or be excluded; in this case any minimum 

temperature is guaranteed.

Replace the batteries as soon as 

possible! Dispose of the 

batteries in the appropriate 

recycling containers

Occurs in case of probe failure.

In this case the Thalos RF activates the receiver for 10 

minutes every 4 hours (if the antifreeze temperature 

Toff

 is 

active)

Occurs for the following values of measured tempera-

ture:

t < 0°C

t >50°C

Unhook and re-hook the thermostat from the base. Press the keys for at least 3 seconds during the flashing.

The advanced programming menu is divided into two parts: programming of operating parameters (

PR

) and configuration/test  of the radiofrequency transmission (

RF

). 

To access it, press simultaneously the keys   and   for at least 3 seconds until 

PR

 appears. At this point choose which menu to access with the keys   or  . 

You will enter the selected menu after 3 seconds without pressing any key.

Modification of the desired temperature (setpoint), 

 to increase     to decrease

Normal operation

heating on (

   

)

press

or

3 sec.

3 sec.

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

19.8

19.9

...

Thalos RF

Thalos RF

Default values

Heating setpoint 

21°C

Cooling setpoint 

25°C

Minimum settable setpoint - 

L0

2°C

Maximum settable setpoint - 

Xi

35°C

Operating mode 

 (heating)

Antifreeze temperature

6°C

Regulation type

On /Off

Differential

0.3°C

Password

- - - (desabled)

Pr

 (parameters programming) 

rF

 (radiofrequency configuration)

3 sec.

3 sec.

Note:  the passage from a menu to the next one occurs after 

3 seconds without keys pressures.

Vemer S.p.A.

I - 32032 Feltre (BL) • Via Camp Lonc, 16

Tel +39 0439 80638 • Fax +39 0439 80619
e-mail: [email protected]  -  web site: www.vemer.it 

V3IS00715-010

 

Mod.

 THALOS RF

Thalos RF is an electronic touch screen thermostat to regulate the ambient 

temperature both in heating and in cooling to control a remote actuator through 

radiofrequency signal.

Powered by two batteries of AAA type, Thalos 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 view even in the dark. 

Code  

Model  

Description

VE480000

 

Thalos RF Bianco 

Radiofrequency thermostat white color

VE481800

 

Thalos RF Nero 

Radiofrequency thermostat black color

SAFETY WARNINGS

 

 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. 

TECHNICAL CHARACTERISTICS

•   Power supply: 2 alkaline batteries from 1.5V ( AAA type)

•   Battery life: about 1 year

•   Wall-mounting installation or to cover the 503 box

•   Summer (cooling) / winter (heating) / off (with antifreeze) operating mode

•   Regulation type:

  -  on/off with settable differential (0.1 ÷ 1°C)

  -  P8 proportional with 0.8°C band (-0.3 ÷ +0.5°C) and period 8 minutes

  -  P15 proportional with 1.5°C band (-0.7 ÷ +0.8°C) and period 15 minutes

•   Measurement precision: ±0.5°C

•   Measurement temperature resolution: 0.1°C

•   Settable setpoint range: 2°C ÷ 35°C 

•   Operating temperature: 0°C ÷ +50°C

•   Storage temperature: -10°C ÷ +65°C

•   Operating humidity: 10% ÷ 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

• Association between Thalos RF and remote actuator

Because the Thalos 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 Thalos 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 Thalos RF. 

2.   Insert the batteries in the Thalos 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 Thalos RF initiates the 

configuration procedure (indicated by 

[NF

 on the 

display) followed by a short test procedure (indicated 

by 

TST

 on the display) where Thalos RF sends the 

sequence on-off-on-off to the actuator. 

3.   Upon receipt of the configuration string, the remote actuator is configured 

and resumes the normal operation while the Thalos RF displays the ambient 

temperature (the programming keys will be active only after you have hooked 

the thermostat at the base).

• Indications for placement

The Thalos 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 thermostat to the base,

at first mating teeth first

placed on the upper side.

Place the thermostat 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 Thalos 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).

During normal operation the Thalos RF displays the value of the measured temperature and the possible activation command to the remote actuator is indicated by the 

symbol

   

(heating mode) or by the symbol

   

(cooling mode).

 REFERENCE STANDARDS

Compliance with Community Directives:

1999/5/EC (R&TTE) - 2004/108/EC (Electromagnetic Compatibility)

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

Minimum settable setpoint - 

L0

It’s the minimum value settable as setpoint.

Settable values: 2 ÷ 35°C

Maximum settable setpoint - 

KI

It’s the maximum value settable as setpoint.

Settable values: 

L0

 ÷ 35°C

Operating mode - 

E-I

 if connected to the boiler (heating)

 if connected to a cooling system

Anifreeze temperature - Toff

Minimum temperature maintained with Thalos RF off 

(see box «Switch off»).

Settable values: 1 ÷ 10 °C or --- (excluded function)

Regulation type - 

REG

 

- (only in heating)

0

   = on/off with settable differential

P8

   =  proportional with band 0.8°C and period 8 minutes

P15

  = proportional with band 1.5°C and period 15 minutes

Differential - 

d0.3

 - (only for on/off regulation)

Differential (or hysteresis) for temperature regulation

Settable values: 0.1 ÷ 1°C

Password for keypad lock - 

PAS

Set a value between 001 and 999 to activate the keypad lock. 

Set 

---

 to disable the lock.

If the keypad lock is active, pressing one key 

LoC

 appears and 

the password is required. If it’s properly inserted the keyboard is 

unlocked for the next 30 seconds.

Configuration -

 

(nF

Choose 

(NF

 to perform a new 

configuration, which sends an 

identifying string of Thalos RF to the 

actuator. To activate the configuration, 

press the key   for at least 3 seconds 

until 

(NF

 stops flashing.

Note:  before activating the 

configuration it’s necessary to 

activate the configuration of the 

channel on the actuator.

After successful configuration 

Thalos RF performs the test phase.

Note:  if you do not press any key within 10 seconds the instrument exits the 

menu showing 

END

.

Test -

 

tSt

The test is used to verify the correct 

communication between Thalos RF and 

the actuator and it can last 10 minutes 

the maximum. To activate the test, 

press the key   for at least 3 seconds 

until 

TST

 will stop flashing. During the 

test the commands of on and off are 

sent to the actuator every 10 seconds.

To stop the test, press the key   for at 

least 3 seconds. 

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

Thalos RF

3 sec.

Thalos RF

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