TD-2 thermostat provides electronic control of 230VAC heating or cooling system. When TD-2
is operating in heating system, it provides frost protection, setback function and the option of
Pulse width modulation (PWM) control. When TD-2 is operating in cooling system, its offers the
option of permanently turned off function.
TD-2 has been designed to give you an easy–to-use and push-button climate control. The large,
clear and backlit display is easy to read even in the dark.
TD-2 has 3 input keys: the ∧, ∨, Green button
KEYS
Keys Functions
∧ and ∨ Adjust the desired set-temperature / press together to activate frost
protection
Green Button Turn on setback function in heating system/ switch to off mode in
cooling system
LCD indicators Function
7-segment display
Displays room-temp, set-temp and other information.
Temperature scale indicator
“°C” for Celsius / “°F” for Fahrenheit
Heat mode indicator
Indicates operating in heat mode/ A flame animate if heating
turn on
Cool mode indicator
Indicates operating in cool mode/ A rotating fan animate if
cooling is turn on/ Outside circle and center dot flash in off
mode
Defrost mode indicator
Indicates frost protection turn on
Setback indicator
Indicates Setback turn on
Low battery
Indicates battery low
TD-2 will be reset after power up or reset button is pressed.
Function Reset status
Operation mode Normal mode
Room Temperature
20°C (68°F)
Temperatura impostata Sistema risc.: 18°C (64°F)
Set Temperature Heat system: 18°C (64°F)
Cool system: 24°C (75°F)
1�
2�
RESET
A. Heating system
Pulse Width Modulation (PWM)
TD-2 offers Pulse width modulation control that enables a set point temperature to be maintai-
ned in a precise and convenient way. In the case of under floor heating, the duration of ope-
ning for the valve actuator is regulated by comparing continuously the set point temperature
with the actual temperature. In this way, the room temperature can reach the set temperature
with minimal temperature deviation. Subsequently, the room temperature is constantly main-
tained via the PWM control. In the case of TD-2 is used with radiator or convector heating
system, PWM can be switched off if necessary.
Setback Temperature
TD-2 has setback temperature function. Once the setback is activated, the set point tempera-
ture is 4°C or 7°F lower than the current set-point temperature. For example, if the set-point is
at 22°C, then the setback temperature is 18°C. Press Green button to toggle between normal
set-temperature and setback function, icon will flash and animate as below to indicate that
the setback function is activated.
TECHNICAL CHARACTERISTICS
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