System 350 A350R Electronic Temperature Reset Control (with Relay) Less Sensor
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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