1. Introduzione
Thank you for choosing the COMPUTHERM Q20RF Wireless Programmable Room Thermostat. This device is designed to provide precise and efficient control over your heating and air conditioning systems. It features daily independent programming, temporary manual modes, and a clear backlit display for optimal comfort and energy savings. Please read this manual carefully before installation and operation to ensure proper use and to maximize the benefits of your new thermostat.
2. Informazioni di sicurezza
- Sicurezza elettrica: Installation and wiring should only be performed by a qualified electrician or service technician. Ensure the main power supply to the heating/cooling system is turned off before any wiring work.
- Trattamentu di a batteria: The thermostat unit requires 2 AA batteries. Do not mix old and new batteries, or different types of batteries. Dispose of used batteries responsibly according to local regulations.
- Placement: Install the thermostat in a location away from direct sunlight, drafts, or heat sources that could affect temperature readings.
- Pulizia: Aduprate un pannu suave è seccu per a pulizia. Ùn aduprate micca detergenti abrasivi o solventi.
- I zitelli: Keep the device out of reach of children to prevent accidental tampering.
3. Cuntenutu di u pacchettu
Verificate chì tutti i cumpunenti sò presenti in u pacchettu:
- COMPUTHERM Q20RF Thermostat Unit (Transmitter)
- COMPUTHERM Q20RF Receiver Unit
- Mounting Support / Stand for Thermostat Unit
- Connection Cables/Wires
- Manuale d'uso (stu documentu)
- 2 AA Batteries (may be included or sold separately)
4. Setup è Installazione
4.1. Unità di termostatu (trasmettitore)
The thermostat unit is portable and can be placed on its mounting stand in any room where you want to measure and control the temperature. It requires 2 AA batteries for operation.
- Inserite batterie: Open the battery compartment on the back of the thermostat unit and insert 2 AA batteries, observing the correct polarity.
- Placement: Place the thermostat unit on its stand in a central location in the room, away from direct heat sources, drafts, or direct sunlight.


4.2. Installazione di l'unità ricevitrice
The receiver unit connects directly to your heating or cooling system. This installation should be performed by a qualified professional.
- Spegnimentu: Ensure the main power supply to your heating/cooling system is completely turned off before proceeding.
- Muntamentu: Mount the receiver unit in a suitable location near your heating/cooling system, ensuring good signal reception from the thermostat unit.
- cablaggio: Connect the receiver unit to your heating/cooling system using the provided connection cables according to the wiring diagram specific to your system. Refer to the detailed wiring instructions provided with your heating/cooling appliance or consult a professional. The receiver unit operates on 230 Volts.
- Power On: Once wiring is complete and secure, restore power to your heating/cooling system.


4.3. Pairing (Wireless Connection)
The thermostat unit and receiver unit are typically pre-paired at the factory. If they are not communicating, follow the pairing instructions in the full manual or contact support.
5. Operating Instructions
5.1. Display è Buttons
The large display shows current time, set temperature, room humidity, and room temperature. The display features a backlight with adjustable brightness. Buttons activate an acoustic signal when touched.
5.2. Modi upirativu
The thermostat allows easy switching between various modes:
- Modu di riscaldamentu: Attiva u sistema di riscaldamentu quandu a temperatura ambiente scende sottu à a temperatura impostata.
- Modu di raffreddamentu: Attiva u sistema di raffreddamentu quandu a temperatura di a stanza supera a temperatura impostata.
- Modu di umidificazione: Controls a humidifier to increase room humidity.
- Modu di Deumidificazione: Controls a dehumidifier to reduce room humidity.
The thermostat also features a humidity limit for cooling. This function allows you to set a humidity level above which the thermostat will stop cooling to prevent condensation.
5.3. Programming Daily Schedules
You can create independent daily programs for each day of the week. For each day, in addition to a fixed switching time, 10 freely adjustable switching times can be set. A different temperature and humidity can be assigned to each switching time.
- Access the programming menu (refer to the full manual for specific button sequences).
- Selezziunate u ghjornu di a settimana chì vulete programà.
- Set up to 10 switching times and their corresponding desired temperature and humidity levels.
- Repeat for other days as needed.
5.4. Manual Modes
- Modu Manuale Temporaneo: Allows you to override the current program setting for a specified duration (1 to 99 hours or 1 to 99 days) until the next programmed switching time.
- Modu Manuale Permanente: Maintains a constant temperature setting, overriding all programmed schedules until manually changed.
5.5. Impostazioni Avanzate
- Selectable Switching Sensitivity: Adjust the temperature differential before the system activates (e.g., 0.1°C, 0.2°C).
- Temperature and Humidity Sensor Calibration: Allows for fine-tuning the sensor readings if they appear inaccurate.
- Pump Protection Function: Periodically activates the pump to prevent seizing during long periods of inactivity.

6. Mantenimentu
6.1. Sustituzione di batterie
The thermostat unit will indicate low battery power on its display. Replace the 2 AA batteries promptly to ensure continuous operation. Always use new, high-quality alkaline batteries.
6.2. Pulizia
Wipe the thermostat and receiver units with a soft, dry, or slightly damp cloth. Do not use chemical cleaners, abrasives, or solvents, as these can damage the plastic casing è cumpunenti elettronichi.
7. Risoluzione di prublemi
If you encounter issues with your COMPUTHERM Q20RF thermostat, try the following steps:
- Nisun Display / L'unità ùn risponde micca: Check if the batteries in the thermostat unit are correctly inserted and have sufficient charge. Replace them if necessary.
- Riscaldamentu/Raffreddamentu micca attivatu:
- Ensure the receiver unit has power.
- Verify the thermostat is in the correct operating mode (Heating/Cooling).
- Check the set temperature; it must be above (for heating) or below (for cooling) the current room temperature to trigger the system.
- Confirm the thermostat and receiver units are paired and within wireless range.
- Lettura di temperatura imprecisa: Consider calibrating the temperature sensor through the advanced settings menu. Ensure the thermostat is not exposed to drafts, direct sunlight, or other heat sources.
- Problemi di prugrammazione: Review the programming steps in the manual. Ensure the current time and day are set correctly.
Sè i prublemi persistenu dopu avè pruvatu ste suluzioni, cuntattate l'assistenza clienti.
8. Specificazioni
| Marca | COMPUTHERM |
| Numero di mudellu | Q20RF |
| Culore | Biancu |
| Dimensioni di u produttu (L x W x H) | 225 x 5 x 14 cm (Thermostat unit); 351 grams |
| Voltage (Ricevitore) | 230 Volts |
| Fonte d'alimentazione (Ricevitore) | Cavu Elettricu |
| Batteries (Thermostat) | 2 batterie AA necessarie |
| Tecnulugia di cunnessione | Senza filu (RF) |
| Tipu di cuntrollu | Programmable |
| Tipu di cuntrollu di temperatura | Riscaldamentu, Raffreddamentu |
| Funzione speciale | Ajustable |
| Usi specifichi per u produttu | Electric or gas heating or cooling |
| U fabricatore | Quantrax LTD |
9. Garanzia
COMPUTHERM products are designed for reliability and user-friendliness. This product is covered by a manufacturer's warranty against defects in materials and workmanship under normal use. The specific terms and duration of the warranty may vary by region. Please retain your proof of purchase for warranty claims.
Information regarding the availability of spare parts is not provided. For detailed warranty information, please refer to the documentation included with your purchase or contact the manufacturer directly.
10. Assistenza Clienti
For further assistance, technical support, or warranty inquiries, please contact the manufacturer:
- Produttore: Quantrax LTD
- Websitu: Please visit the official COMPUTHERM websitu per i dettagli di cuntattu è risorse supplementari.
- Distributore: CalorSol GmbH (for specific regions, check your purchase details)
When contacting support, please have your product model number (Q20RF) and proof of purchase readily available.





