The TC-250D is a universal, single point temperature controller. It is a direct replacement for the analog TA 239W, adding modern micro processor control functions and a clear LED readout.
It uses the same sensors as the 239W. The TC-250D can be used in any heating or cooling system within the range of 40 to 205 deg F. It is designed to handle fast control loops with fluctuating loads, such as domestic hot water control, using our 15 second VM800 actuator and a 2- or 3-way control valve. It works equally well in slow systems using actuators with long run times.
Very easy to use
Works with fast and slow control loops
PI control algorithm
Low load dead zone with adjustable activation point
Fast sample rate of sensor input
Reversible output for heating or cooling applications