The RTA05 controller is designed to control fan coil in heating and cooling systems. RTA05 controls heating and/or cooling valves, fan speeds and electric resistance with 2 or 4-pipe fan coil. The proportional + integral (P + I) action available ensures accurate temperature control in all operating conditions. The controller can be mounted on the wall or on the fan coil frame using the optional remote air sensor. In 2-pipe systems it is possible to activate the summer/winter changeover by a switching contact or a sensor mounted on the pipe at the fan coil inlet. The controller provides two pre-set levels for room temperature control: Comfort and Economy. The transition between the two levels can be directly selected on the room device or via a digital input. The room sensor is located inside the controller and can be replaced by an optional remote sensor. Available commands: setpoint adjustment knob, Comfort / Economy mode setting button, summer/winter changeover push bottom, manual fan speed selector and power switch off.
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cod. RTA05