COMPUTHERM Q7 RF Programmable, wireless (radio-frequency) digital room thermostat Operating Instructions
GENERAL DESCRIPTION OF THE THERMOSTAT The COMPUTHERM Q7 RF type switched-mode room thermostat is suitable to regulate the overwhelming majority of boilers available in Hungary. It can easily be connected to any gas boiler or air conditioning device that has a double wire connector for a room thermostat, regardless of whether it has a 24 V or 230 V control circuit.
The effective range of the transmitter incorporated in the thermostat is approximately 50 m in open terrain. This distance may become considerably shorter within a building, especially when a metal structure or a reinforced concrete wall stands in the way of radio waves. The switching sensitivity of the thermostat can be selected: ±0.2°C (factory default setting, recommended for radiator-based heating systems) or +0/-0.2°C (this setting is recommended for underfloor heating).
1. LOCATION OF THE DEVICE The thermostat of the COMPUTHERM Q7 RF type device can be freely moved in your residence. It is reasonable to locate it in a room used regularly or for many hours per day so that it is in the direction of natural ventilation in the room but protected from drought or extreme heat (e.g. direct sunlight, refrigerator, chimney, etc). Its optimal location is 1.5 m above floor level. It can be placed on its own stand or can be mounted on a wall.
2.2 Setting current day and hour • Press the “DAY” button. At this time only the serial number of the day will flash on the display of the thermostat and the hour and minute values can be seen. • Using the large........or........button on the front panel of the device, set the serial number of the current day (Monday 1; Tuesday 2; Wednesday 3, etc.). • Press the “DAY” button again.
(activated) is acknowledged by pressing the “SET” button. (After approximately 10 seconds settings are automatically acknowledged and the device goes back to the main screen). By pressing the “RESET” button, the pipe protection function is reset to factory default setting (“HP:OFF”). To prevent the pump from sticking, the activated pump protection function switches on the boiler for a one minute period at 12:00 p.m. every day outside the heating season.
Temperature time 7:00 9:00 12:30 15:00 17:30 23:00 3.1 Programming steps: • Press the “SET” button to go back to the main screen. • Press the “SET” button again and hold it down and press the “PROG” • • • • • button, too. At this point the device gets into programming mode and the numbers indicating the days of the week (1 2 3 4 5 6 7) are flashing on the display. Select the day to be programmed or all days of the week by pressing, or pressing repeatedly, the large........or........
• Press the “PROG” button again. At this point the next programming step • • • • • should be performed, i.e. the starting time of switch P2 should be set. As in the previous steps, the time value to be set will flash on the display. If you do not need all the six switches every day, then you can omit the switch adjustment by pressing the “DAY” button while the temperature or time of the unnecessary switch is being set.
• Following this, by pressing, or pressing repeatedly, the large........or........ • • button on the front panel of the device, you can choose further days of the week and can copy the program of the day selected beforehand (e.g. 2) by pressing the “COPY” button to these days too. After you have finished copying the program, press the “SET” button to go back to the main screen.
The cost-effective and standard temperature values assigned to buttons ........and........in the factory can be freely modified as follows: • To set a cost-effective temperature, press the “SET” button and keep it depressed then press the........button once and, following this, with the help of the........and/or........, set the cost-effective temperature selected by you. After the temperature has been set, press the “SET” button again to fix the set temperature value and to go back to the main screen.
time set for temperature modification has expired to interrupt the temperature modification and return the device to operating according the program. 4.3 Temperature modification for 1-99 days (holiday program) Set the required temperature by pressing, or pressing repeatedly, the large ........or........button on the front panel of the device. The manual control is indicated by the........icon. Press the “HOLD” button and keep it depressed for at least 2 seconds. On the display the........
7. THE RECEIVER UNIT 7.1 Installation and connection of the receiver unit The receiver unit should be mounted on the wall in a place protected against moisture in the vicinity of the boiler. Attention: Do not install the receiver unit under the housing of the boiler because it may shield radio signals and compromise wireless (radio-frequency) connection. To avoid electric shock, entrust a specialist with connecting the receiver unit to the boiler.
The length of the wire is of no significance, the receiver unit may be installed either near the boiler or far away from it. If the distance between the transmitter and receiver units is too large due to local circumstances and it makes the wireless (radio-frequency) connection unreliable, install the receiver unit nearer to the place of thermostat. 7.2 Putting the receiver unit into operation Turn on the power supply to the receiver unit.
7.4 Manual control of the receiver unit Pressing the “MANUAL” button separates the thermostat from the receiver unit, and the boiler connected to the receiver unit can only be turned on and off manually, without any temperature inspection. The continuously illuminated green LED indicates “MANUAL” mode. Pressing the “M/A” button turns on or off the boiler. (The red LED is illuminated when the boiler is turned on).
- 15 - Sunday Saturday Friday Thursday Wednesday Tuesday Monday Day Start time P1 Temp °C Start time P2 Temp °C Start time P3 Temp °C Start time My program P4 Temp °C Start time P5 Temp °C Start time P6 Temp °C
TECHNICAL DATA Technical data of the thermostat M Û S(transmitter): Z A K I A DATO K — temperature measurement range: 0 to 35°C (in 0.1°C increments) A termosztát (adó) mûszaki adatai: — adjustable temperature range: 7 to 35°C (in 0.5°C increments) — hõmérséklet mérési tartomány 0 – 35°C (0,1°C-os lépésekben) — temperature measurement accuracy: ±0.5°C — beállítható hõmérsékleti tartomány 7 – 35°C (0,5°C-os lépésekben) — selectable switching sensitivity: ±0.
