Product Description
TC903-3A2L Thermostat, EcoStruxure Building Operation series, is a stand-alone field controller designed for fan coil control, equipped with LCD display and 5 buttons. It has 2P, 3 fan structure, 240V supply voltage and white color body.
Schneider Electric SpaceLogic TC903-3A2L is a standalone digital thermostat designed for fan coil based HVAC systems. Intended for 2-pipe system applications, it operates over a wide supply voltage range of 90...240 V AC 50/60 Hz and has a maximum power consumption of only 1 W.
The device detects room temperature with a 100 kOhm NTC thermistor sensor with ±1 °C measurement accuracy. Temperature setting range is 5...35 °C, operating ambient temperature is 0...50 °C, relative humidity tolerance is between %5...95. Ambient temperature, time, day, temperature alarm, communication status and current program information are displayed on the backlit LCD screen. 5 mechanical buttons provide access to functions such as setpoint adjustment, fan control, mode selection, economizer and low temperature protection.
There is a 240 V AC 5 A relay output and 240 V AC 2 A load output on the output side. 3-stage fan speed control is realized via relay; actuator control is provided by 2 position ON-OFF switch. Connections are made via screw terminals on the rear side; 2 cables with a cross section of 1.5 mm² or 1 cable with a cross section of 2.5 mm² are supported.
With physical dimensions of 86 x 86 x 40 mm (width x height x depth), the device can be mounted in a standard BS wall box. The white body thermostat with IP20 protection rating complies with EN/IEC 60730-1 and EN/IEC 60730-2-9 standards and is CE certified. Suitable for hotels, hospitals, office buildings and residential applications. Warranty period is 18 months.
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