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GENERAL DESCRIPTION OF THE THERMOSTAT 

The 

COMPUTHERM

 

Q8RF(TX)

 type switched-mode room thermostat is 

suitable  to  regulate  the  overwhelming  majority  of  boilers  and  air 

conditioners. It can be used together with the 

COMPUTHERM

 

Q8RF 

multi-

zone  thermostats  to  complement  the  two  thermostats  in  the  basic 

package, to increase the number of zones regulated.

Because there is a wireless (radio-frequency) connection between 

the 

COMPUTHERM

 

Q8RF(TX)

  thermostat  and  the  receiver  unit  of  the

 

COMPUTHERM

 

Q8RF 

thermostat,  no  cable  is  required  between  the 

thermostat and the receiver.

The device can be programmed according to customer-specific requirements 

so  that  the  heating/cooling  system  heats/cools  your  residence  or  office  to 

the required temperature at the dates and times specified by you, to reduce 

energy costs while maintaining comfort. Separate temperature programs can 

be prepared for each day of the week. For each day, beside 1 fixed switching 

time (

PROG

 

), 6 adjustable switching times (

PROG

 

 ‒ 

PROG

 

) can be set (at 

10-minute intervals) and a different temperature (in 0.5°C increments) can be 

assigned to all 7 switching times.
To increase the lifetime of the batteries, the thermostat will not transmit signals 

continuously. Instead it will repeatedly transmit the actual signal every 8 minutes. 

Therefore, the regulation of the heating or cooling will continue even after a 

blackout.

The portability of the thermostat offers the following advantages:

no need to lay a cable, which is especially advantageous when old build-

ings are being modernized,

the optimal location of the device can be selected during operation.

- 2 -

Thermostat

Boiler

Reciever

230V AC, 50-60Hz

Zone valves

230V AC, 50-60Hz

Summary of Contents for Q8RF(TX)

Page 1: ...COMPUTHERM Q8RF TX Multi zone programmable wireless radio frequency digital room thermostat Operating Instructions NEW design...

Page 2: ...ure at the dates and times specified by you to reduce energy costs while maintaining comfort Separate temperature programs can be prepared for each day of the week For each day beside 1 fixed switchin...

Page 3: ...9 8 C or below and switches it off at 20 2 C or above Please refer to Section 2 4 for the modification of the factory default switching sensitivity of 0 2 C The thermostat is equipped with a pump prot...

Page 4: ...e thermostatic head may disturb the temperature control of the flat 2 PUTTING THE THERMOSTAT INTO OPERATION BASIC SETTINGS 2 1 Inserting batteries Pressing the lock on the upper side of the housing of...

Page 5: ...between the heating and cooling mode There is a possibility to easily switch between the heating and cooling mode of the thermostat The output terminals of the receiver unit No 1 NO and No 2 COM are c...

Page 6: ...deactivate this function using the large and buttons The notices and indicate activated and deactivated state respectively Finally confirm the setting by pressing the SET button if no buttons are pres...

Page 7: ...ctivate more than one switch for each day Furthermore it is advised that a comfort temperature is used only those times when the room or building is in use since every 1 C decrease of temperature save...

Page 8: ...s should be copied using the COPY button A separate program can be created for the heating and cooling mode and these programs are preserved when switching between the modes Therefore if the thermosta...

Page 9: ...ich is indicated on the display of the device by flashing the temperature value to be set C by default Set the desired temperature using the large and buttons then press the PROG button e Then the sta...

Page 10: ...the flashing abbreviation MON indicating Monday shows that conditions are ready for copying a program Select the day whose program you wish to copy to another day or other days using the large and but...

Page 11: ...the new program as described in Sections 2 and 3 3 6 Program inspection First press the SET button to go to the main screen then press the PROG button At this point the abbreviation indicating the da...

Page 12: ...program switch Set the required temperature using the large and buttons on the front panel of the device At this time the icon appears on the display indicating that the thermostat is operated with m...

Page 13: ...anual control e g that is 3 days After this time has elapsed the icon disappears and the device resumes the program that has been set If you wish to return to the set program before the time set for t...

Page 14: ...voltage appears on the display the batteries should be replaced see Section 2 1 The exact time should be set again after the batteries have been replaced but the device saves the program that has bee...

Page 15: ...spectively When the receiver unit fails to receive signals sent by the thermostat then the receiver unit is outside the transmission distance of the wireless radio frequency transmitter thus they have...

Page 16: ...Start time Temp C Start time Temp C Start time Temp C Start time Temp C Start time Temp C Start time Temp C Start time Temp C MONDAY MON SUNDAY SUN SATURDAY SAT FRIDAY FRI THURSDAY THU WEDNESDAY WED T...

Page 17: ...t the temperature using the and buttons for a period of 1 to 9 hours set the temperature using the and buttons then press the DAY button and finally set the duration using the and buttons for a period...

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