System 350 A350R Electronic Temperature Reset Control (with Relay) Less Sensor
System 350 A350R Electronic Temperature Reset Control (with Relay)
The A350R Electronic Temperature Reset Control is designed to raise or lower the setpoint of supply water temperature based upon a proportionate drop or rise in temperature at the master (outdoor) sensor. The control output is a Single-Pole, Single-Throw (SPST) relay with Light-Emitting Diode (LED) relay status indication.
The A350R’s differential may be adjusted for a given application. An adjustable reset ratio adapts to a variety of weather zones and to the specific heat loss characteristics of most buildings. As are all System 350TM products, the A350R is housed in a NEMA 1, high-impact plastic enclosure. The modular design provides easy, plug-together connections for quick installation and future expandability.Replaces Part Numbers: A350RT-1