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1. What can the Q8RF room thermostat be used for?
-The multi-zone wireless room thermostat COMPUTHERM Q8RF was specially developed for controlling heating and cooling systems. It is also suitable for controlling electrical and electronic devices, which can be switched on and off by removing and switching the power supply unit back on.

Which battery does the thermostat work with?

-The thermostats are operated with 2 1.5 V alkaline batteries (type LR6; size AA). Only new alkaline batteries may be used in the devices. Other batteries that are described as long-lasting or long-lasting (e.g. conventional carbon-zinc batteries), empty batteries or the use of rechargeable batteries are not suitable for operating the device.

What is the expected battery life?

-The expected battery life with normal use is approximately 1.5-2 years.

Where should the thermostat transmitter and receiver be placed?

-The transmitter units of the thermostat should be placed in a room that is used for regular or longer stays so that it is in the direction of the natural air movement in the room, but not drafts or extreme heat (e.g. radiation, refrigerator, chimney, etc.) . Its optimal position is 1.5 m above the ground. The devices can easily be set up on their feet and can be placed on any horizontal surface (e.g. table, shelf, chest of drawers) or even mounted on the wall thanks to the screw holes on the back.

The receiver of the COMPUTHERM Q8RF thermostat should be installed near the boiler in a place protected from moisture and heat. When choosing the location of the receiver, also take into account that the propagation of radio waves is caused by heavy metal objects (e.g. boiler, buffer storage, etc.) or that metal structures can be adversely affected. If possible, we recommend installing the receiver at a distance of at least 1-2 m and at a height of 1.5-2 m from the boiler and other large metal structures in order to ensure interference-free radio communication. We recommend that you check the reliability of the radio connection at the selected location before installing the receiver. Do not install the receiver under the boiler cover or in the immediate vicinity of hot pipes or pumps, as this can damage the components and endanger the radio link (radio frequency). It is also recommended to supply the receiver with mains power from a different socket than the boiler (if possible from a different phase) and never to lead it from the boiler to the receiver.
To avoid electric shock, have the receiver connected by a specialist!

For which devices is the Q8RF suitable for control?

-The multi-zone wireless room thermostat COMPUTHERM Q8RF is suitable for controlling most boilers and air conditioning systems on the EU market. It can be easily connected to any gas boiler or air conditioning system with a two-wire room thermostat connection point, regardless of whether it is a 24 V or 230 V control circuit. It is also suitable for controlling electrical and electronic devices, which can be switched on and off by removing and switching the power supply unit back on.

Is 230V power required for the devices?

It is not necessary for the operation of the transmitter units of the thermostat, only
2 X 1.5 V alkaline batteries (type LR6; size AA) required per thermostat.

However, the thermostat receiver works with 230 V mains voltage.

Can I use several thermostats next to each other?

-No. Each thermostat and the associated receiver have their own security code, which guarantees the safe and trouble-free operation of the devices. Each receiver only receives signals from a thermostat with the same security code. As a result, any number of devices can be used in close proximity to one another without causing problems with device communication.

How do the devices continue to work after the power failure?

-After the power supply has been restored, the receiver output is initially switched off. However, since the transmitter repeats its current switching command every 5 minutes, the heating / cooling system control returns to the previously set mode no later than 5 minutes after the power failure.

What should I do if the thermostatic thermometer does not measure accurately?

- From the buttons on the front of the thermostat, briefly press the SET button once. Then briefly press the DAY button and then immediately the HOLD button. The display then shows CAL and you can use the +/- key to change the displayed temperature from the measured value.

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