On/Stand By Switch Use this switch to put the thermostat in sleep mode when its use is no longer required (e.g. summer). This will not affect the clock or programming. .. GFCI Warning Light and Test Button .. Day & Clock Settings .. Programming Mode .. Mode Selection/Exit Programming .. Room OR Floor Temperature .. Current Mode and Setpoint .. Current Program Number .. Setpoint definition/Pre-defined Setpoints .. Increase/Decrease Temperature Models A Controls the Ambient temperature. AF Controls the Ambient temperature and Floor temperature limit. F Controls the Floor temperature. This thermostat is factory-set to the following values: Align the bracket tabs on the control module with the holes located on top of the power base. NOTE: Keep the thermostat's air vents clean and free from obstructions. NOTE: The screw cannot be removed completely. TH115 A/F/AF Owner’s Guide TH115 Description # Function UP DN SW1 Temperature format a a. If you switch from °F to °C or vice versa, the , and setpoints may need to be redefined. °F °C SW2 Early Start b b. When using AUTO mode, the thermostat calculates the optimum start time to obtain the desired temperature by the set time. The heating system could be started a few hours prior to set time when required. Disable Enable SW3 Time format 12-hour 24-hour Switch Selection Switches are located on the rear of the control module. To modify any setting, switch UP or DN. Control Module Installation Power base Control module When power is applied for the first time, the LCD displays: 0:00, MO (Monday), and temperature (room/ floor). .. Press HOUR - MIN to set the current time. .. Press DAY to set current day. For AF and F models: one of the two following messages may be displayed if the installation is incorrect: LO: The floor temperature is below 32°F (0°C), or the temperature sensor is defective, or not connected. The heating indicator is displayed and the relay is closed (energized). HI: The floor temperature is above 140°F (60°C), or the temperature sensor is defective. The GFCI monitors the electrical flow for any loss of current; if there is one, the thermostat will cut off power to the heating system. We recommend you test the GFCI immediately after installing the control module, and once a month thereafter to ensure it is operating properly. To test: .. Increase the temperature until the heating indicator is displayed. .. Press TEST: • Successful: the TEST warning light is ON and power to heating system is cut off. • Unsucessful: the TEST warning light is OFF. Cut power to heating system from the main power panel and call customer service. .. When successful, reset thermostat (Stand By/On) to power the heating system. NOTE: If the test warning light comes ON during normal operation, cut power to heating system from the main power panel and have an electrician verify the installation. The following temperature setpoints are pre-programmed: To modify a setpoint: .. Set the desired temperature using . .. Press and Hold the or or button until symbol is displayed. .. Press RET to exit. Floor temperature limit—The floor temperature limit is 82°F. To modify this limit: Automatic —Executes the schedule. .. Press MODE until is displayed. The current program number is displayed. You can temporary bypass the current program by setting a specific temperature or by pressing on a pre-defined setpoint button ( ) . The new setpoint will be maintained until the beginning of the next program. Manual —Maintains a constant temperature. .. Press MODE until is displayed. .. Set temperature or press ( ) to use pre-defined setpoint. Vacation —Maintains the Vacation setpoint during a prolonged absence. .. Press until the icon is displayed. Correct Incorrect First Power ON GFCI Test (GA & GB power base only) Symbol Description Default New Comfort (when at home) 70°F 82°F Economy (when asleep/ away from home) 64°F 68°F Vacation (during prolonged absence) 50°F 50°F Temperature Setpoint .. Press and hold while switching from ON to Stand By then back to On. .. Set temperature .. Press RET to exit. To avoid damaging your floor, we recommend you follow the supplier’s instructions. Operating Modes 920-115-007-00-1-A A/AF F Pre-programmed Schedule The TH115 programmable thermostat is pre-programmed with the following schedule: Time you Time you Time you Time you go wake up and leave and return home to bed and desired temperature and desired overnight temperature during your temperature temperature absence Programs MO TU WE TH FR SA SU 6:00 6:00 6:00 6:00 6:00 6:00 6:00 8:30 8:30 8:30 8:30 8:30 --:---:- 16: 00 16:00 16:00 16:00 16:00 --:---:- 23: 00 23:00 23:00 23:00 23:00 23:00 23:00 Temperature Control The TH115 thermostat works differently than conventional electromechanical thermostats. It is equipped with a proportional integral adaptive (P.I.A.) controller which determines heating cycles by analyzing the temperature behavior history within the room. The P.I.A. controller reduces temperature variat...