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Guidance on selecting the optimal placement for the AURATON 2020 controller for effective operation.
Details on the conductor terminals (COM, NO, NC) of the AURATON 2020 controller.
Instructions for assembling and mounting the AURATON 2020 controller on the wall.
Description of the external components and layout of the AURATON 2020 and AURATON 2020 TX Plus controllers.
Explanation of the multi-function LCD display elements and their meanings on the controller.
Step-by-step guide for setting the current day of the week on the controller's display.
Instructions for setting the current time (hour and minute) on the controller.
Overview of the controller's programming capabilities for temperature settings throughout the week.
Guide to programming the controller for the first time after battery installation.
Information on advanced programming options and modifications available for the controller.
Details on making the necessary cable connections for the AURATON 2020 RX Plus receiver.
Identification and description of the external parts and indicators of the AURATON 2020 RX Plus receiver.
Schematic showing direct wiring of the AURATON 2020 to a heating device.
Wiring diagram for connecting the AURATON 2020 P with an external floor sensor.
Wiring diagram for connecting the AURATON 2020 to electric devices with specific power ratings.
Wiring diagram for connecting the AURATON 2020 to a gas boiler without a circulation pump.
Wiring diagram for connecting the AURATON 2020 RX Plus receiver to a heating device.
The AURATON 2020 and AURATON 2020 TX RX Plus are programmable temperature controllers designed to manage heating systems efficiently. These devices allow users to set and maintain desired room temperatures throughout the week, offering precise control over heating cycles.
The primary function of both the AURATON 2020 and AURATON 2020 TX RX Plus is to regulate room temperature by controlling a heating device. The AURATON 2020 is a wired controller, while the AURATON 2020 TX RX Plus is a wireless system consisting of a transmitter (TX) and a receiver (RX). The TX unit, which is the main controller, communicates with the RX receiver via radio waves, and the RX receiver is connected to the heating device (e.g., a furnace, gas boiler, or electric heater).
Both controllers operate as unipole two-state relays, meaning they have three terminals: COM (common), NO (normally open), and NC (normally closed). When the heating device is active, the NO-COM terminals are short-circuited, and COM-NC are open. Conversely, when the heating device is inoperative, NO-COM are open, and COM-NC are short-circuited. This allows the controller to switch the heating system on or off based on the programmed temperature settings.
The AURATON 2020 TX RX Plus system includes an extensible antenna on the receiver for communication. Control diodes on the receiver provide visual feedback: a green diode indicates the executing device is operative, a red diode confirms the receiver is supplied with power, and a yellow diode signals radio connection with the temperature controller. The receiver also features an additional socket for connecting other equipment, with a maximum load of 5A.
The controllers offer extensive programming capabilities to optimize temperature cycles. Users can define up to four temperature values for a 24-hour period during working days (Monday to Friday) and two separate temperature values for Saturdays and Sundays. This allows for precise temperature adjustments based on daily routines, such as increased activity during the week and rest periods on weekends. Programming can be done with one-minute accuracy, and temperatures can be set in the range of 5°C to 27°C with 0.5°C accuracy.
The front panel of the controller features a slidable cover that, when open, provides access to several pushbuttons:
The controller also features two triangular buttons for manual temperature setting and two pushbuttons (AUTO and MAN) to alternate between automatic and manual control modes. In manual mode, the controller ceases program execution and maintains a manually adjusted temperature permanently.
An energy-saving operation mode is available, allowing users to temporarily set any temperature for a period of up to seven days with one-minute accuracy. After this period, the controller automatically returns to its programmed operation. This feature is particularly useful for saving energy during extended absences, as it can reduce room temperature and then resume automatic operation a set time before the user's planned return.
The controller's sensitivity (hysteresis) can be adjusted to three levels: 0.5°C (±0.25), 1°C (±0.5), or 2°C (±1). The factory default is 1°C. This setting determines the temperature range within which the heating device switches on and off. For example, with a 1°C sensitivity, if the set temperature is 21°C, the heating device will switch on at 20.5°C and off at 21.5°C.
For the AURATON 2020 TX RX Plus, a unique feature is the ability to independently modify the communication protection code of the RX receiver. The factory default code is "085." If communication problems arise or another wireless temperature controller operates nearby, the code can be changed to a value between 1 and 255 to prevent interference.
Battery replacement is a key maintenance aspect for the AURATON 2020 and AURATON 2020 TX Plus. The controllers are powered by two R-6 alkaline batteries. A low battery indicator on the display reminds users to exchange the batteries. Access to the batteries is gained by removing the front panel cover. For the wireless TX version, replacing batteries with new alkaline ones is crucial for maintaining reliable communication, even if the low battery indicator is not yet lit.
The working time meter of the heating device is a useful maintenance feature. It tracks the total number of hours the heating device has been in operation since the last reset, up to 999 hours. A FILTER indication blinks when the measured time exceeds 250 hours, reminding the user to check or reset the meter. This information can help users monitor heating system usage and potentially identify issues or optimize energy consumption.
The AURATON 2020 TX RX Plus includes protection mechanisms. Should any transmission disturbance (e.g., strong electromagnetic impulse or voltage drop) prevent the RX receiver from confirming ON or OFF switching within five consecutive cycles (five minutes), the heating device will switch off to prevent overheating. The controller will resume normal operation once the disturbance is eliminated. However, if the operation lasts longer than 30 seconds, reprogramming of the AURATON 2020 TX Plus might be required after battery replacement.
The signal transmitted by the AURATON 2020 TX Plus is digitally encoded, allowing multiple controllers to operate in a small area without mutual interference. The TX unit emits a short encoded signal every minute to confirm the required state of the RX receiver, ensuring secure and reliable operation.
Users are advised to avoid high inductive and capacitance loads, as these can lead to burning out the relay terminals. For devices with power exceeding the load capacity of the terminals, an intermediate switch suitable for the end device should be used.
The AURATON 2020 TX Plus set includes a plastic support for convenient placement of the controller.
General| Display | LCD |
|---|---|
| Temperature Control Range | 5°C to 30°C |
| Programming | 7-day programming |
| Mounting | Wall-mounted |
| Compatibility | Compatible with most heating systems |
| Type | Programmable thermostat |
| Power Supply | 230V AC 50Hz |
| Hysteresis | ±0.2°C |
| Operating Temperature Range | 0°C to 40°C |
| Communication | Wired |
