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The AS-UNT1108-0 controller is a unitary controller or UNT that was designed by Johnson Controls in the UNT1100 controller series. It features multiple input options, including 6 analog inputs (with RTD temperature elements and 0-10 VDC, 0-2 VDC-rated transmitters) and 6 binary (24 VAC inputs). The controller also has 8 binary outputs with 2A and 24 VAC pilot relays. The AS-UNT1108-0 controller requires 24 VAC of voltage with 50/60 Hertz at 40 VA.
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| Manufacturer | Johnson Controls |
|---|---|
| Product Line | Metasys AS |
| Part Number | AS-UNT1108-0 |
| Weight | 0.25 lbs (0.11 kg) |
| Series | UNT1100 |
| Type | Unitary Controller (UNT) |
| Analog Inputs | 6 analog inputs |
| Binary Inputs | 6 binary inputs |
| Analog Outputs | 0 analog outputs |
| Relay Outputs | 8 relay outputs |
| Power Requirements | 24V AC, 50/60 Hz at 40 VA for a typical system |
| Operating Temperature | -40 to 60°C (-40 to 140°F) |
| Storage Temperature | -40 to 70°C (-40 to 158°F) |
| N2 Communication | Supported |
The AS-UNT1108-0 controller is a UNT or Unitary Controller, and it is part of the UNT1100 series by Johnson Controls. It is an electronic control device for HVAC systems. The AS-UNT1108-0 controller can be used in an HVAC system that serves one room or zone. It can control heat pumps, unit ventilators, fan coils, and air-handling units. Users can also configure the AS-UNT1108-0 controller to operate as a generic I/O or input/output device if it is used in a METASYS network. The AS-UNT1108-0 controller can handle basic point-monitoring applications when it operates as a generic I/O device. This controller offers multiple input and output options, ensuring compatibility with various systems and system devices. This controller can operate as a standalone device in a small system. The AS-UNT1108-0 controller supports 6 analog inputs, allowing for flexible sensor integration. Additionally, it features 6 binary inputs that enable easy integration with external devices. The AS-UNT1108-0 controller also has 8 relay outputs but no analog outputs. It supports an N2 bus as a communication option. The AS-UNT1108-0 controller’s operating temperature range is between -40 and 60 degrees Celsius (-40 and 140 degrees Fahrenheit). It can operate with 10 to 90% relative humidity in its environment. The controller’s storage temperature range is between -40 and 70 degrees Celsius (-40 and 158 degrees Fahrenheit. It can be stored at a relative humidity level between 10 and 90%. The AS-UNT1108-0 controller can support 32K of RAM, 64K of ROM, and 24K of EEPROM. Its shipping weight is about 0.43 kg or 0.95 lb.