C) The factory setpoint (20 °C) – if the T-2 thermometer is the only device paired with the RTHreceiver, it is not possible to set the temperature manually, and the RTH receiver maintains the factory temperature setpoint of 20 °C. NOTE! 1. The sequence of pairing the AURATON 200 RTH regulator and the T-2 thermometer is very important. If you want to maintain the remote setpoint, you must first pair the AURATON 200 RTH with the RTH receiver, and then the T-2 thermometer. Reversing the pairing sequence will cause automatic deregistering of the previously paired T-2 thermometer and entering the mode of operation described in item A. The RTH receiver can operate with one AURATON 200 RTH regulator and/or one T-2 thermometer only. Pairing anew regulator causes deregistering the previously paired regulator and the T-2 thermometer. Pairing anew T-2 thermometer causes deregistering the previously paired T-2 thermometer only. The 200 RTH regulator and/or the T-2 thermometer can operate with an unlimited number of receivers, e.g. one regulator can simultaneously control two independent heating devices. 16 The operation of temperature regulation in the receiver is based on the binary algorithm (on/off) using one or two sensor elements. The AURATON 200 RTH regulator allows for setting and/or monitoring the temperature. The AURATON T-2 thermometer provides information about the current temperature only, without the capability of changing it manually.