AS-UNT121-1

The AS-UNT121-1 UNT Controller, designed and manufactured by Johnson Controls, stands as a versatile and robust electronic device tailored for advanced digital control of a diverse range of HVAC systems. Specifically engineered for managing single-zone or room-based units like packaged air handling units, unit ventilators, and heat pumps, it also functions as a proficient Input/Output (I/O) device for basic point monitoring within the Metasys® Network. Boasting remarkable configurability, it efficiently handles point inputs and outputs, offering comprehensive control and monitoring capabilities across a spectrum of Heating, Ventilation, and Air Conditioning (HVAC) equipment applications. The controller's interoperability extends to its capacity to serve as either a standalone unit or an integrated component within the Metasys Network via a Network Control Module (NCM) or Companion®, communicating seamlessly through an N2 Bus. The AS-UNT121-1 features a 24 VAC, 50/60 Hz power supply, supplemented by an integrated heater for dependable performance even in low-temperature conditions. Its compact dimensions (165 x 163 x 56 mm) and lightweight build (0.64 kg) contribute to its flexibility in various installations. Empowered by an 80C652 processor and equipped with 32K RAM, 64K ROM, and 8K EEPROM memory, this controller ensures precise and reliable control. Its interfaces include N2 and Zone Bus connections, and it provides 6 Analog Inputs accommodating RTD temperature elements, adjustable setpoint potentiometers, and voltage transmitters, along with 4 Binary Inputs for various sensor inputs and occupancy mode. UL Listed and CSA Certified, the AS-UNT121-1 UNT Controller exemplifies innovation and effectiveness in HVAC control applications.