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The S688A is mounted in the return air duct where the sail will be in the direct path of an unrestricted air stream
Lower humidity levels feel more comfortable
Includes a current sensor and relay for on/off control
Reliable Line Voltage Control: The economical Electric Heat Thermostat provides reliable line voltage control of resistive-rated electric heating equipment
and is available in four sizes to fit most ducts
T104B1038 ISD Product The S688A is mounted inProvide precise and automatic control of room temperature in two pipe systems by modulating the flow of hot water or steam through free standing radiators, convectors and other heating units with high capacity requirements. Controller with combined remote setpoint and sensor mounted on a wall. Setpoint sensor connect with a capillary tube to an actuator, which mounts on the valve body. For V110 valves.
