| Property | Type | Description |
|
Active Cool Setpoint |
Numeric |
The cooling setpoint presently in effect. |
|
Active Heat Setpoint |
Numeric |
The heating setpoint presently in effect. |
|
Air Valve Drive Closed: Local |
Binary |
State of drive closed override resident at the UCM. |
|
Air Valve Drive Closed: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the drive closed override. |
|
Air Valve Drive Max: Local |
Binary |
State of drive max flow override resident at the UCM. |
|
Air Valve Drive Max: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the drive max flow override. |
|
Air Valve Drive Min: Local |
Binary |
State of drive min flow override resident at the UCM. |
|
Air Valve Drive Min: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the drive min flow override. |
|
Air Valve Drive Open: Local |
Binary |
State of drive open override resident at the UCM. |
|
Air Valve Drive Open: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the drive open override. |
|
Air Valve Flow |
Numeric |
Current air flow in CFM. |
|
Air Valve Flow Constant |
Numeric |
Scaling factor for air valve flow based on valve size and type. |
|
Air Valve Flow Rate |
Numeric |
Current air flow in percent of VAV unit nominal rating. |
|
Air Valve Flow Rate (Heat) |
Numeric |
Not applicable. |
|
Air Valve Max Flow Stpnt: Local |
Numeric |
Value of the max flow setpoint resident at the UCM. |
|
Air Valve Min Flow Release: Loc |
Binary |
State of min flow setpoint release resident at the UCM. |
|
Air Valve Min Flow Stpnt: Local |
Numeric |
Value of the min flow setpoint resident at the UCM. |
|
Air Valve Override Status |
Multi-State |
Flow control override may be open, close, minimum, or maximum. |
|
Air Valve Position |
Numeric |
Current position in percent of stroke (0–100%) of air valve. |
|
Air Valve Position (Heat) |
Numeric |
Not applicable. |
|
Air Valve Size Index |
Numeric |
Nominal CFM rating of air valve. |
|
Air Vlv Min Heat Flow Stpnt: Loc |
Numeric |
Value of the min heat flow setpoint resident at the UCM. |
|
Alarm Event Class |
Numeric |
Contains the Alarm and Message Routing Class number (1–20) that is used to route messages when this object is in alarm. |
|
Algorithm Output |
Numeric |
Not applicable. |
|
Algorithm Output (Heat) |
Numeric |
Not applicable. |
|
Auxiliary Sensor Exist |
Binary |
Indicates if the auxiliary temperature sensor is installed. |
|
Auxiliary Temperature |
Numeric |
Current temperature measured at the auxiliary temperature sensor. |
|
Calibrate Initiate: Local |
Binary |
State of calibrate initiate resident at the UCM. |
|
Calibrate Initiate: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of calibrate initiate. |
|
Calibration in Effect |
Binary |
UCM is recalibrating the air valve flow sensor. |
|
Calibration Start |
Binary |
Not applicable. |
|
Calibration Stop |
Binary |
Not applicable. |
|
Communication Address |
Numeric |
Indicates the assigned communications address value of the VAV I. |
|
Communication Bad Message Count |
Numeric |
Keeps track of the number of message errors that occur when attempting to communicate with the VAV I. |
|
Communication Channel |
Numeric |
Indicates the assigned communications channel value of the VAV I. |
|
Communication Error Count |
Numeric |
Keeps track of the number of communications errors that occur when attempting to communicate with the VAV I. |
|
Communication No Answer Count |
Numeric |
Keeps track of the number of unanswered communications with the VAV I. |
|
Communication State |
Binary |
This property indicates the status of communications between the BCU and the UCM. 0=Down, 1=Up. |
|
Control Event Class |
Numeric |
Contains the Alarm and Message Routing Class number (1–20) that is used to route messages when this object is controlled. |
|
Control Mode |
Multistate |
This property indicates the control mode (occupy, unoccupy, etc.) of the UCM. |
|
Control Offset in Effect |
Binary |
Indicates if setpoints are adjusted by the control offset value. |
|
Diag: Cool Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Fan Control Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Flow Sensor Fail |
Binary |
Indicates if air valve flow sensor signal is out of normal range. |
|
Diag: Heat Flow Sensor Fail |
Binary |
Not applicable. |
|
Diag: Heat Stpt Fail |
Binary |
Not applicable. |
|
Diag: Max Flow Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Min Flow Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Min Heat Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Thumbwheel Setpoint Fail |
Binary |
Indicates if the thumbwheel setpoint signal is out of normal range. |
|
Diag: Unocc Cool Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Unocc Heat Setpoint Fail |
Binary |
Not applicable. |
|
Diag: Zone Sensor Fail |
Binary |
Indicates if the zone temperature sensor is out of normal range. |
|
Dual Duct |
Binary |
Not applicable. |
|
Fan Control Method: Local |
Binary |
This property indicates whether the UCM will control the (parallel) fan based on a flow setpoint or a degrees setpoint. |
|
Fan Control Offset |
Numeric |
This value will determine when a parallel fan will be turned on or off. This may be specified as a temperature offset above the zone heating setpoint (2-10 degrees), or as a percentage of unit nominal airflow (0-100%) This property is valid for parallel fan powered VAV only. |
|
Fan Control Setpoint: Local |
Numeric |
This property indicates when the (parallel) fan will be energized when the fan control method is flow. |
|
Fan Disable: Local |
Binary |
State of fan disable override resident at the UCM. |
|
Fan Disable: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the fan disable override. |
|
Fan Exists |
Binary |
Indicates if the UCM is configured to control a local fan. |
|
Fan Output |
Binary |
Indicates if parallel fan output is On or Off. |
|
Fan Type |
Binary |
Specifies type of fan the UCM is configured to control: series = On, Parallel = Off. |
|
Heat Active |
Binary |
Indicates if heat output is On or Off. |
|
Heat Control FPWM |
Binary |
Specifies control of electric heat. UCM configuration: Fast pulse width modulation = On, Slow pulse width modulation = False. |
|
Heat Control Staged Electric |
Binary |
Specifies control of electric heat. UCM configuration: Staged electric = On, No staged electric = Off. |
|
Heat Disable: Local |
Binary |
State of heat disable override resident at the UCM. |
|
Heat Disable: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the heat disable override. |
|
Heat Exists |
Binary |
Specifies if UCM is configured to control local heat. |
|
Hot Water Control Type |
Binary |
Specifies type of hot water heat the UCM is configured to control: Proportional = On, On/Off = Off. |
|
Last Control Date Time |
Date/Time Numeric |
This indicates the date and time when the present value property of this object was last controlled. |
|
Mode: Heat/Cool |
Binary |
Indicates mode of heating control action (On), or cooling control action (Off). |
|
Object Identifier |
Object ID |
Unique hexadecimal ID of this object. This ID is used internally to identify the object. |
|
Object Type |
Multi-State |
Designates object’s type (i.e., analog input, binary output, TCM, PCM, etc.). |
|
Occupied Cool Setpoint: Local |
Numeric |
Value of the occupied cool setpoint resident at the UCM. |
|
Occupied Cool Setpoint: Ref |
Numeric |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the occupied cool setpoint. |
|
Occupied Heat Setpoint: Local |
Numeric |
Value of the occupied heat setpoint resident at the UCM. |
|
Occupied Heat Setpoint: Ref |
Numeric |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the occupied heat setpoint. |
|
Present Value |
Multi-State |
Current value of the VAV I. |
|
Thumbwheel Setpoint Enable |
Binary |
State of thumbwheel setpoint enable resident at the UCM. |
|
Timed Override Request |
Binary |
A timed override request has been initiated and will be reset to Off after 2 minutes. |
|
Unit Type |
Binary |
Indicates if VAV unit is VariTrac (On) or VariTrane (Off). |
|
Unoccupied Cool Setpoint: Local |
Numeric |
Value of the unoccupied cool setpoint resident at the UCM. |
|
Unoccupied Cool Setpoint: Ref |
Numeric |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the unoccupied cool setpoint. |
|
Unoccupied Heat Setpoint: Local |
Numeric |
Value of the unoccupied heat setpoint resident at the UCM. |
|
Unoccupied Heat Setpoint: Ref |
Numeric |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the unoccupied heat setpoint. |
|
Update Tag |
Numeric |
Value indicating last edit change of this object. |
|
VAV Air System Identification |
Object Ref |
Specifies the VAV air system to which this UCM is assigned. |
|
VAV Control Offset Enable: Ref |
Binary |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the state of the control offset override. |
|
Zone Temperature |
Numeric |
Current temperature measured at the zone temperature sensor. |