1) CONVENTIONAL WITH ANTICIPATION TH135/140/141
This simple regulation sends On/Off commands to the heating system according to a pre-selected temperature variation. The TH140 control algorithm includes an anticipation function which reduces the discrepancy between the thermostat reading and the temperature at the center of the room.
2) PROPORTIONAL TH101/102/104/106/108
This regulation is based on the latest temperature reading, which occurs every 15 seconds. In fact, the controller decides which percentage of power to send to the electric baseboard depending on the temperature requested by the user and the temperature measured by the thermostat. Thus the thermostat reacts very quickly, ensuring optimal comfort. The screens display the percentage of power sent as follows:
3) PROPORTIONAL INTEGRAL ADAPTIVE (P.I.A.) TH110/111/132/135/140/141
Each thermostat is equipped with a proportional integral adaptive (P.I.A.) controller which reduces temperature variations and allows the correction of the discrepancy caused by the variation of the heat energy release charge. In simpler terms, it provides a much more accurate temperature regulation while increasing user comfort.
WHY DOES THE P.I.A. CONTROLLER SHOW A BETTER PERFORMANCE ?
Contrary to a conventional controller which defines heating cycles based on the current temperature, the P.I.A. controller determines heating cycles by taking into account the history of the temperature inside the building. Consequently, it adapts its control parameters to the analysis of past data.
CONVENTIONAL CONTROLLER :
If the outside temperature is mild, during the autumn or spring for example, the furnace will start its heating cycle at full power. It will therefore generate a temperature increase in the center of the room much faster than along the walls where the thermostat is installed. Since the thermostat will be slow to react, the room will be overheated.
P.I.A. CONTROLLER :
In the same situation, the P.I.A controller will define the power required before the beginning of the cycle. It will calculate, based on the heating system's past performance, the duration of the heating cycle required to optimize the room temperature variation. Contrary to a traditional controller, it will react much faster.
The P.I.A. controller optimizes the temperature variation in the room based on the number of cycles per hour authorized by the heating system. This allows to :
Maintains a constant temperature in the house.
This mode generates savings by lowering the temperature during the night or while away. The user indicates the desired temperature at specific moments.
Prog. #1: Monday to Friday, from 7:15 AM, 20 °C
Prog. #2: Monday to Friday, from 10:30 PM, 17 °C
Maintains the minimum temperature selected for a long absence.
Allows the temporary modification of the ambient temperature without affecting the programming.
The TH106, TH135, TH140 and TH141 are equipped with an interface which allows, through telephone controller, to switch from normal operating mode to Vacation mode, or vice-versa.
For the cottage or the vacation return. The user programs the temperature, the day and the time of his arrival (Prog. #1) and his departure (Prog. #2).
A non-volatile memory protects thermostat programming in case of power failures. The clock is protected from power outages of up to 4 hours. No battery necessary.
°C / °F :
All thermostats can display the temperature in °C or °F.
12hrs. / 24hrs :
All thermostats can display the time in 12hrs. (AM/PM) or 24hrs. mode.
RADIANT CEILINGS :
Radiant ceilings heat the masses, including people. It is therefore recommended to use a proportional control system which sends to the heating system only the power required. User comfort will be much greater than with a conventional system which can only send 100% of its power.
Thermostats allow energy savings because of their ACCURACY and their various OPERATING MODES. Use the following formula to calculate energy gains:
Good temperature regulation allows the user to lower the
selected temperature and thus save energy. The selected temperature is usually set according to the discomfort temperature level for the user, which is the lowest point of the cycle.
Discomfort temperature: 18 °C (64.4 °F)
For a temperature variation of 4 °C (7.2 °F), the selected temperature will be 20 °C (68 °F). (A).
For a temperature variation of 2 °C (3.6 °F), the selected temperature will be 19 ° (66.2 °F). (B).
1 °C (1.8 °F) lower for a 24 hour period is equivalent to approximately 6% saving.
OPERATING MODES :
By using the Programming or the Vacation mode, you can reduce the temperature and save even more.
If you reduce your home temperature from 20 °C (68 °F) to 16 °C (60.8 °F) during the night,
you save 8% (4 °C X 2% or 7.2 °F X 1.12%).
If your system takes one hour to go from your saving temperature level to your comfort temperature level, it is useless to lower the temperature for a period less than 2 to 3 hours.