Johnson Controls AS-UNT100-0 Metasys UNT100 Unitary Controller Module [Refurbished]

$407 USD

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. . . . . The Unitary Controller (UNT) is an electronic device for digital control of packaged air handling units, unit ventilators, fan coils, heat pumps, and other terminal units serving a single zone or room. It also can be configured as a generic Input/Output (I/O) device for basic point monitoring applications when used within a Metasys? Network. You can easily configure point inputs and outputs, and software features to control a wide variety of Heating, Ventilation, and Air Conditioning (HVAC) equipment applications. The UNT may be used as a standalone controller or connected to the Metasys Network through a Network Control Module (NCM) or Companion?.When connected to the Metasys Network, the UNT provides all point control information to the rest of the network. The devices communicate through an N2 Bus. For a smaller facility, the UNT can function as a standalone controller. The following list contains features of the UNT100/101 which differ from the other UNT types.No earth ground connections are allowed when wiring a UNT100/101 series controller.The N2 bus is not isolated. The secondary of the 24 VAC transformer cannot be grounded.The BIs can accept dry contacts only, not 24 VAC. They can also accept 100 Hz as accumulator input.The BO is not jumper selectable. The triac switches to the common side of 24 VAC only. Johnson Controls. Johnson Controls. AS-UNT100-0.