Fan coil units, consisting of two components—a fan and a coil—have essentially become devices used for heating and cooling. To heat or cool the air in a space, water is first circulated through the coils.
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Digital room thermostat for fan coil systems, featuring 3-speed (H/M/L) fan control, the ability to keep the fan running continuously or shut it off in conjunction with the valve as needed, suitable for 2- or 4-pipe systems, selection of heating, cooling, and ventilation modes, separate On/Off contact outputs for heating and cooling, window/door contact outputs or external sensor connectivity, temperature limit control (upper and lower) for heating and cooling, resume operation from where it left off after a power outage, surface-mountable model, RS485 Modbus communication, weekly programmable, and key lock feature.