Property | Type | Description |
Alarm Event Class [1-3] |
Numeric |
This is a three element array containing entries for alarm classes Informational, Auto Reset, & Manual Reset diagnostics. Each entry contains an index into the event action table. The event action table contains both a set of instructions for alarm routing, and a stretchy list of referencer objects (the potential receivers). |
Alarm Output |
Binary |
This property indicates the state of the alarm relay output on the CSC UCM. When on, indicates the UCM is in a diagnostic / alarm condition. |
Communication Address |
Numeric |
This property provides access to the assigned communications address value of the UCM being represented. |
Communication Bad Message Count |
Numeric |
This is a property for keeping track of the number of message errors which occur when attempting to communicate with the UCM hardware. |
Communication Channel |
Numeric |
This property provides access to the assigned communications channel value of the UCM being represented. |
Communication Error Count |
Numeric |
This is a property for keeping track of the number of communications errors that occur when attempting to communicate with the UCM hardware. |
Communication Format |
Multi-State |
This property indicates the communication format being used by the CSC unit. 0=UNDEFINED, 1=CSC PRE-CSRO COMM FORMAT, 2=CSC CSRO COMM FORMAT, 3=CSC CSRP COMM FORMAT |
Communication No Answer Count |
Numeric |
This is a property for keeping track of the number of unanswered communications with the UCM hardware. |
Communication Retry |
Binary |
Provides access to the communications retry indicator. This property is used to signal the control server that it needs to force control data output to the device when it is awakened for maintenance operations. The communications retry indicator is set (TRUE) when an attempt to send control data fails, and cleared (FALSE) when communications are successful. |
Communication State |
Binary |
This property indicates the status of communications between the BCU and the UCM. 0=Down, 1=Up. |
Comp Number Enabled: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used to enable a specific number of compressors on the CSC unit. 0=0, 1=1, 2=2, 3=3, 4=4 COMPRESSORS ENABLED |
Comp: Number Enabled |
Numeric |
This property indicates the value to be used by the "Comp Number Enabled: Tracer" property to enable a specific number of compressors on the CSC unit. If the "Mech Cooling Control: Ref" property is set to DISABLE, the value "0" will be shown for this property. 0=0, 1=1, 2=2, 3=3, 4=4 COMPRESSORS ENABLED |
Comp: Number Of |
Numeric |
This property indicates the actual number of compressors on the CSC based on DIP switch settings at the unit (pre-set at the factory). 2=2 CPRSRS, 3=3 CPRSRS, 4=4 CPRSRS |
Compressor A Output |
Binary |
This property indicates the state of the Compressor A output relay. 0=OFF, 1=ON |
Compressor A Run Time |
Numeric |
This property indicates the number of hours compressor A has run. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 hours |
Compressor A Starts |
Numeric |
This property indicates the number of starts compressor A has had. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 starts |
Compressor B Output |
Binary |
This property indicates the state of the Compressor B output relay. 0=OFF, 1=ON |
Compressor B Run Time |
Numeric |
This property indicates the number of hours compressor B has run. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 hours |
Compressor B Starts |
Numeric |
This property indicates the number of starts compressor B has had. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 starts |
Compressor C Output |
Binary |
This property indicates the state of the Compressor C output relay. 0=OFF, 1=ON |
Compressor C Run Time |
Numeric |
This property indicates the number of hours compressor C has run. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 hours |
Compressor C Starts |
Numeric |
This property indicates the number of starts compressor C has had. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 starts |
Compressor D Output |
Binary |
This property indicates the state of the Compressor D output relay. 0=OFF, 1=ON |
Compressor D Run Time |
Numeric |
This property indicates the number of hours compressor D has run. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 hours |
Compressor D Starts |
Numeric |
This property indicates the number of starts compressor D has had. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 starts |
Condenser Water Flow Status |
Binary |
This property indicates the status of the condenser water flow switch on the UCM. When water flow is present, the compressors can be operated. Compressors will not operate until this property shows FLOW. This property is only valid on water-cooled CSC units. 0=NO FLOW, 1=FLOW |
Condenser Water Pump Output |
Binary |
This property indicates the active status of this output on the UCM. When ON, the CSC is requesting water flow which in turn causes the necessary customer-supplied condenser water supply equipment to be active to support unit cooling operations. 0=OFF, 1=ON |
Condenser Water Temp: Entering |
Numeric |
This property indicates the temperature of the water entering the condenser. This property is only valid for water-cooled CSC units. Range: 0 to 235° F |
Condenser Water Temp: Leaving |
Numeric |
This property indicates the temperature of the water leaving the condenser. This input is used for condensing temperature control. This property is only valid for CSC units configured with head pressure control. Range: 0 to 190° F |
Config: Air Volume Control |
Binary |
This property indicates the active configuration of VAV CSC units. This property is only valid for VAV CSC units. 0=INVERTER, 1=IGV |
Config: Communications |
Binary |
This property indicates whether the BCU and the CSC are communicating. This property is typically in the ENABLE state and is not normally used for day-to-day operation. 0=DISABLE, 1=ENABLE |
Config: Condenser Type |
Binary |
This property indicates the condenser type associated with the CSC unit. 0=WATER-COOLED, 1=AIR-COOLED |
Config: CV Duct Pres Diag Enable |
Binary |
This property is used to enable the ‘Diag: SA Hi Press - Manual’ diagnostic. This property is used only on CV CSCs. 0=DISABLE, 1=ENABLE. |
Config: External Setpoint |
Binary |
This property indicates whether the external setpoint option is installed on the CSC unit. ENABLE means the CSC will use the local hard-wired setpoint when the CSC is in the LOCAL mode. DISABLE means there is no local hard-wired setpoint. This CSC property is typically used with a non-Trane BAS. This property is only available if the "Config: Reset Option" property is set to ENABLE. 0=DISABLE, 1=ENABLE |
Config: Head Pressure Control |
Binary |
This property indicates whether the condensing head pressure control option is installed on the CSC unit. 0=DISABLE, 1=ENABLE. |
Config: Heat |
Binary |
This property indicates whether the night heat and morning warmup and/or the CV heat/cool autochangeover options are installed. |
Config: Reset Option |
Binary |
This property indicates whether the "Config: External Setpoint" and "Config: Zone Based Reset" properties are enabled or disabled. ENABLE means that these properties are available DISABLED means that these properties are not available. 0=DISABLE, 1=ENABLE |
Config: VAV Duct Press Control |
Binary |
Enabling this control loop allows duct pressure control via configured ‘Config: Air Volume Control’ device, and enables ‘Diag: SA Hi Press - Manual’ diagnostic. This property is used only on VAV CSCs. |
Config: Water Valve Control |
Binary |
This property indicates whether the unit is configured with the standard water valve option or the energy saving water valve option. This property is only valid on units configured with water-side economizers. |
Config: Zone Based Reset |
Binary |
This property indicates whether the setpoint reset option is installed on the CSC unit. ENABLE means that the UCM is allowed to provide setpoint reset functionality. This property is only available if the "Config: Reset Option" property is set to ENABLE. 0=DISABLE, 1=ENABLE |
Configuration: Economizer |
Multi-State |
This property indicates the type of economizer (if any) being used by the CSC unit. 0=NO ECONOMIZER, 1=WATERSIDE ECONOMIZER, 2=AIRSIDE ECONOMIZER |
Configuration: System Control |
Binary |
This property indicates how the CSC will operate in the system. CV means the CSC unit will perform zone temperature control and VAV means the unit will perform discharge air temperature control. 0=CV, 1=VAV |
Control Event Class |
Numeric |
This property determines where control messages are routed to when the object’s present value is controlled. |
Diag: Automatic Reset |
Binary |
This property indicates a diagnostic that takes part or all of the CSC unit off-line. Resetting of this diagnostic will automatically occur when the condition causing the diagnostic clears. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT1 Evap Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the evaporator suction temperature sensor on circuit 1 reads either lower than 0° F or greater than 115° F. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT1 High Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 1 discharge pressure is greater than 360 PSI, or the UCM detects loss of the input signal. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT1 Low Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 1 low pressure cutout input indicates failed, at which time compressors on this circuit are disabled. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT2 Evap Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the evaporator suction temperature sensor on circuit 2 reads either lower than 0° F or greater than 115° F. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT2 High Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 2 discharge pressure is greater than 360 PSI, or the UCM detects loss of the input signal. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT2 Low Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 2 low pressure cutout input indicates failed, at which time compressors on this circuit are disabled. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT3 Evap Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the evaporator suction temperature sensor on circuit 3 reads either lower than 0° F or greater than 115° F. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT3 High Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 3 discharge pressure is greater than 360 PSI, or the UCM detects loss of the input signal. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT3 Low Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 3 low pressure cutout input indicates failed, at which time compressors on this circuit are disabled. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT4 Evap Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the evaporator suction temperature sensor on circuit 4 reads either lower than 0° F or greater than 115° F. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT4 High Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 4 discharge pressure is greater than 360 PSI, or the UCM detects loss of the input signal. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: CKT4 Low Pressure |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the circuit 4 low pressure cutout input indicates failed, at which time compressors on this circuit are disabled. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comm Fail - CSR |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when a communication and setpoint reset module failure occurs with the UCM unit switch in the Auto Remote position. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp A Contactor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 8% current when the compressor A output is de-energized. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp A High Motor Temp |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the compressor A motor winding temperature sensor reads greater than 221° F. (On early units this diagnostic also occurs when the refrigerant discharge temperature sensor reads greater than 302° F.) This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp A Overload Trip |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 132% compressor A motor current for greater than 102 seconds, greater than LRA for greater than 1.6 seconds, or phase loss. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp B Contactor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 8% current when the compressor B output is de-energized. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp B High Motor Temp |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the compressor B motor winding temperature sensor reads greater than 221° F. (On early units this diagnostic also occurs when the refrigerant discharge temperature sensor reads greater than 302° F.) This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp B Overload Trip |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 132% compressor B motor current for greater than 102 seconds, greater than LRA for greater than 1.6 seconds, or phase loss. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp C Contactor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 8% current when the compressor C output is de-energized. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp C High Motor Temp |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the compressor C motor winding temperature sensor reads greater than 221° F. (On early units this diagnostic also occurs when the refrigerant discharge temperature sensor reads greater than 302° F.) This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp C Overload Trip |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 132% compressor C motor current for greater than 102 seconds, greater than LRA for greater than 1.6 seconds, or phase loss. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp D Contactor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 8% current when the compressor D output is de-energized. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp D High Motor Temp |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the compressor D motor winding temperature sensor reads greater than 221° F. (On early units this diagnostic also occurs when the refrigerant discharge temperature sensor reads greater than 302° F.) This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Comp D Overload Trip |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects greater than 132% compressor D motor current for greater than 102 seconds, greater than LRA for greater than 1.6 seconds, or phase loss. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Cond Ent Water Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present, on units configured with water-cooled condensers, when the entering condenser water temperature input reads either lower than 14° F or greater than 123° F. This is an auto reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Cond Lvg Water Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the leaving condenser water temperature input reads either lower than 14° F or greater than 123° F. This is an auto reset diagnostic. This property is valid only for units configured with head pressure control. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Condenser Water Low Temp |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the entering condenser water temperature input reads lower than 34° F for units configured with condensing pressure control, or lower than 53° F for units configured without condensing pressure control. This diagnostic will automatically reset, and is considered an informational only diagnostic. This property is valid only for water-cooled CSC units. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Controller Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects an internal failure. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Dirty Filter |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the UCM has detected that a dirty filter condition exists. This diagnostic will automatically reset, and is considered an informational only diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Econ Ent Water Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the entering economizer water temperature input reads either lower than 14° F or greater than 123° F. This is an auto reset diagnostic. This property is valid only for CSC units configured with a water-side economizer. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Heat Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects a failure in the optional electric heating unit. This is a manual reset diagnostic. This property is valid only for CSC units configured with electric heat. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Information Warning |
Binary |
This property indicates a diagnostic that may take none, part, or all of the CSC unit off-line. This diagnostic is reset automatically when the condition causing the diagnostic clears. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Last |
Multi-State |
This property indicates the last diagnostic to occur on the CSC unit. The value in parenthesis below is the hexadecimal code that actually appears on the front panel of the CSC unit. Only the text is displayed on the Diagnostics page of the CSC editor or on the standard graphics. (continued) |
Diag: Last (continued) |
Multi-State |
Unit Communication Fail (DF) |
Diag: Manual Reset Required |
Binary |
This property indicates a diagnostic that takes part or all of the CSC unit off-line. Resetting of this diagnostic must be done from the unit front panel. 0=NOT ACTIVE, 1=ACTIVE |
Diag: MWU Temp Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the morning warmup temperature input reads either lower than 10° F or greater than 150° F. This is an auto reset diagnostic. This property is valid only for CSC units configured with night heat and morning warmup. 0=NOT ACTIVE, 1=ACTIVE |
Diag: No Condenser Water Flow |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the UCM is requesting condenser water flow and the condenser water flow input indicates no flow. This is an auto reset diagnostic. This property is valid only for CSC units with water flow switches. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Non-volatile Data Error |
Binary |
This property indicates the active error status of the UCM NOVRAM/BBRAM data. When present, this diagnostic indicates the UCM has been unable to recall its remote setpoints from non-volatile storage, and requires a download of control information. This diagnostic is an information warning diagnostic. 0=DATA OK, 1=DATA ERROR |
Diag: OA Temp Sensor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present, on units configured with air-cooled condensers, when the outdoor air temperature input reads either equal to or less than -40 ° F or equal to or greater than 190° F. This is an auto reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Phase Reversal/Phase Loss |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects a phase reversal or phase loss. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: RA Temp High Limit |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the entering air temperature input reads greater than 135° F. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: RA Temp Low Limit |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the unit return air entering temperature input reads lower than 37° F. This is an auto reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: SA Hi Press - Manual |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when a VAV CSC is configured with VAV duct pressure control or a CV CSC is configured with CV duct pressure diagnostic enabled, and the duct static pressure has either exceeded the supply air pressure by 1.0 IWC (for CSCs using communication formats up through CSRN) or the supply air pressure high static limit setpoint (for CSCs using communication formats CSRO and up). This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: SA Temp Sensor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the supply air temperature input reads either lower than 14° F or greater than 160° F. This is an auto reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Supply Fan Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects less than the minimum allowed duct pressure. This diagnostic will automatically reset, and is considered an informational only diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Supply Fan Overload Trip |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects a problem with the supply fan through the current monitoring inputs. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Temp Reset Sensor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when either the external setpoint input reads either lower than 40° F or greater than 90° F, or the zone based setpoint reset temperature input reads either lower than 14° F or greater than 140° F. This is an auto reset diagnostic. This property is valid only for UCMs configured for external setpoint or setpoint reset (the "Config: External Setpoint" property or the "Config: Zone Based Reset" property is set to ENABLE). 0=NOT ACTIVE, 1=ACTIVE |
Diag: UCM Bad Config |
Binary |
This property indicates the active status of this diagnostic. This diagnostic occurs when the UCM detects an improper unit configuration. This is a manual reset diagnostic. 0=NOT ACTIVE, 1=ACTIVE |
Diag: Zone Temp Sensor Fail |
Binary |
This property indicates the active status of this diagnostic. This diagnostic is present when the zone temperature input reads either lower than 10° F or greater than 150° F. This is an auto reset diagnostic. This property is valid only for constant volume CSC units or CSC units with night heat and morning warmup. 0=NOT ACTIVE, 1=ACTIVE |
Economizer Control: Tracer |
Binary |
This property indicates the value that will be communicated by the system to the UCM and used to modulate the economizer. AUTO means that the UCM will decide when to modulate its economizer based on its enthalpy input. ENABLE means that the Tracer is telling the UCM it should modulate the economizer. This property is valid only for CSC units configured with airside economizers. 0=AUTO, 1=ENABLE |
Economizer Damper Position |
Numeric |
This is the position of the airside economizer damper, if configured for an airside economizer and economizer is installed. Range: 0 to 100% |
Economizer Min Position: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the economizer minimum position. This property is valid only on CSC units with an airside economizer. Range: 0 to 50%. |
Economizer Min Position: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used as the economizer minimum position. This property is valid only for CSC units configured with airside economizers. Range: 0 to 50% |
Economizer Request: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM to request economizing. This property is valid only on CSC units with an airside economizer. 0=AUTO, 1=ENABLE |
Economizer Water Temp: Entering |
Numeric |
This property indicates the active temperature of the water entering the economizer. This property is valid only for CSC units with waterside economizers. Range: 0 to 190° F |
Enthalpy Input |
Binary |
This property indicates the status of this hard-wired input to the CSC UCM, indicating whether or not it is OK to economize. ON/YES means it is OK to economize. OFF/NO means it is not OK to economize. This property is valid only for CSC units with airside economizers. 0=OFF/NO, 1=ON/YES |
Evap Saturated Refrig Temp: CKT1 |
Numeric |
This property indicates the temperature of the suction line on circuit 1. This temperature is used to predict when frosting will occur on the evaporator coil. Range: 0 to 255° F |
Evap Saturated Refrig Temp: CKT2 |
Numeric |
This property indicates the temperature of the suction line on circuit 2. This temperature is used to predict when frosting will occur on the evaporator coil. Range: 0 to 255° F |
Evap Saturated Refrig Temp: CKT3 |
Numeric |
This property indicates the temperature of the suction line on circuit 3. This temperature is used to predict when frosting will occur on the evaporator coil. Range: 0 to 255° F |
Evap Saturated Refrig Temp: CKT4 |
Numeric |
This property indicates the temperature of the suction line on circuit 4. This temperature is used to predict when frosting will occur on the evaporator coil. Range: 0 to 255° F |
External Interlock Input |
Binary |
This property indicates the active status of this safety input on the CSC unit. CLOSED/RUN means that the unit may run normally. OPEN/STANDBY means there is a problem on the system (e.g., input from an external fire safety device) and the CSC is immediately shut down. 0=OPEN/STANDBY, 1=CLOSED/RUN |
Frost Protect |
Binary |
This property indicates the active status of the display dash on the front panel of the CSC unit. If any of the four suction line temperatures ("Evap Saturated Refrig Temp: CKT 1, 2, 3, or 4" properties) are indicating that a portion of the evaporator is frosting, then this frost protect enunciator is turned on. NO means frost protect is not active and YES means that frost protect is active. 0=NO, 1=YES |
Heat Output |
Binary |
When ON, this property is used to operate a heating source via a pilot circuit. This output will be ON when the CSC unit is actively heating. 0=OFF, 1=ON |
Heat Run Time |
Numeric |
This property indicates the number of hours the heat circuit has run. The counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 hours. |
Heat Starts |
Numeric |
This property indicates the number of starts the heat circuit has had. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 starts |
Heating Control: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM to disable heating or allow the CSC unit to determine when to heat. 0=DISABLE, 1=AUTO |
Heating Control: Tracer |
Binary |
This property indicates the value that will be communicated by the system to the UCM and used to control the heat mode on the CSC unit. 0=DISABLE, 1=AUTO. |
Last Control Date Time |
Date/Time Numeric |
This indicates the date and time when the present value property of this object was last controlled. |
Maximum Ventilation: Input |
Binary |
This property indicates the active status of a hard-wired input to the CSC unit. CLOSED/MAX VENT means that the CSC unit is forced into maximum ventilation mode which overrides everything except unit stop. 0=OPEN/NORMAL, 1=CLOSED/FORCED MAX VENT |
Maximum Ventilation: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM to initiate maximum ventilation or allow the CSC unit to determine when to initiate maximum ventilation. 0=AUTO, 1=FORCED MAX VENT |
Maximum Ventilation: Tracer |
Binary |
This property indicates the value that will be communicated by the system to the UCM and used to put the CSC unit into the maximum ventilation mode. FORCED MAX VENT means that all compressors and heating will be OFF and the supply fan will be ON. Static pressure control is always active when the CSC is in FORCED MAX VENT. 0=AUTO, 1=FORCED MAX VENT |
Mech Cooling Control: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM to control mechanical cooling. DISABLE means that the "Comp: Number Enabled" property is overridden to the "0" value. 0=DISABLE, 1=AUTO |
Minimum Off Time |
Numeric |
This property is the minimum off time assigned to the UCM being represented. This value serves to protect the hardware from cycle times which might harm the hardware. |
Minimum On Time |
Numeric |
This property is the minimum on time assigned to the UCM being represented. This value serves to protect the hardware from cycle times which might harm the hardware. |
Minimum Time Remaining |
Numeric |
This property is the minimum time remaining (if any) of a minimum On/Off time control action for the represented UCM device. PUTS are also allowed so that an operator can intervene on a Minimum On/Off control action that is in progress. |
Mode: Heat/Cool |
Binary |
This property indicates that the CSC unit is in a heating capable or cooling mode. CLOSED/HEAT means that the heating control is active, the compressors are off, and heat may or may not be off. OPEN/COOL means that a cooling or ventilation mode is active or that the unit is off, the compressors may or may not be off, and heat is off. 0=OPEN/COOL, 1=CLOSED/HEAT. |
Mode: Occupancy |
Binary |
This property indicates the active occupancy status of the CSC UCM. 0=UNOCCUPIED, 1=OCCUPIED. |
Mode: System Status |
Binary |
This property indicates whether or not the active operating mode is stopped. 0=STOP/RESET, 1=AUTO |
Morning Warmup Setpoint: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the morning warmup setpoint. This property is valid only on VAV CSC units. Range: 40.0 to 90.0° F. |
Morning Warmup Setpoint: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used as the morning warmup setpoint. This property is valid only for VAV CSC units configured with night heat and morning warmup. Range: 40 to 90° F |
Morning Warmup Temp: Input |
Numeric |
This property indicates the value from the morning warmup temperature input (hard-wired sensor on the UCM). This property is valid only on CSC units configured with night heat and morning warmup. Range: 0 to 190° F |
Object Identifier |
Object ID |
Uniquely identifies a particular object. This property is provided primarily to allow the embedding of the object ID in the returned data buffer. |
Object Type |
Object Type |
This property designates the object’s type (i.e., analog input, binary input, TCM, PCM, etc.). |
Occ Cooling Setpoint: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used as the occupied cooling setpoint. This property is valid only on CV CSC units. Range: 50 to 90° F |
Occ Heating Setpoint: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used as the occupied heating setpoint. This property is valid only for CV CSC units configured with night heat and morning warmup or heat/cool autochangeover. Range: 40 to 90° F |
Occupancy: Tracer |
Binary |
This property indicates the value that will be communicated by the system to the UCM and used to control the CSC to occupied or unoccupied. 0=UNOCCUPIED, 1=OCCUPIED. |
Occupied Cool Stpt: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the occupied cooling setpoint. This property is valid only on CV CSC units. Range: 50.0 to 90.0° F. |
Occupied Heat Stpt: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the occupied heating setpoint. This property is valid only on CV CSC units. Range: 40.0 to 90.0° F. |
Operating Mode: Unit |
Multi-State |
This property indicates the active operating mode of the CSC unit. The value in parenthesis below is the hexadecimal code that actually appears on the front panel of the CSC unit. Only the text is displayed on the Diagnostics page of the CSC editor or on the standard graphics. |
Outdoor Air Temperature: Input |
Numeric |
This property indicates the value from the outdoor air temperature sensor input (hard-wired sensor on the UCM). This property is valid only on air-cooled condenser units. Range: -40 to 195° F |
Present Value |
Multi-State |
This property is used to control the unit to one of nine standard operation modes. These modes are defined as UNOCCUPIED, OPTIMAL START, OCCUPIED, OPTIMAL STOP, DEMAND LIMIT, DUTY CYCLE, PRIORITY SHUTDOWN, NIGHT ECONOMIZE, and NIGHT HEAT-COOL. A translation (within the BCU) may take place to map these modes into a simpler mode set. |
Reset Gain: Local |
Numeric |
This property indicates the active value measured from a front panel rotary switch. This property is valid only for CSC units configured with Zone Based Reset. Range: 1 to 8 ° F/° F |
Reset Limit: Local |
Numeric |
This property indicates the active value measured from a front panel rotary switch. This property is valid only for CSC units configured with Zone Based Reset. Range: 5 to 20° F |
Reset Reference Temp: Local |
Numeric |
This property indicates the active value measured from a front panel rotary switch. This property is valid only for CSC units configured with Zone Based Reset. Range: 60 to 80° F |
Reset Temperature: Input |
Numeric |
This property indicates the value from a hard-wired sensor used with the "Config: Zone Based Reset" property. This property only applies if the CSC is configured for zone based reset. Range: 9 to 145° F |
Return Air Temperature |
Numeric |
This property indicates the value from the hard-wired sensor measuring the temperature of the unit intake air. This sensor is used to generate the RA Temp High Limit and RA Temp Low Limit diagnostics as well as failure of the sensor. Range: 0 to 190° F |
SA Cooling Setpoint: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the supply air cooling setpoint. This property is valid only on VAV CSC units. Range: 50 to 90° F. |
SA Cooling Setpoint: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used as the supply air cooling setpoint. This property is valid only for VAV CSC units. Range: 50 to 90° F |
SA Pres High Static Limit: Local |
Numeric |
This property indicates the active value measured from front panel potentiometer. Either this property or the ‘SA Pressure Control Band: Local ‘ property will be valid depending on the Communication format in use. This property is valid only when the ‘Communication Format’ property indicates that the CSC CSRO or CSC CSRP comm format is in use. Range: 1.0 to 5.0 IWC |
SA Pressure Control Band: Local |
Numeric |
This property indicates the active value measured from front panel potentiometer. Either this property or the ‘SA Pres High Static Limit: Local ‘ property will be valid depending on the Communication format in use. This property is valid only when the ‘Communication Format’ property indicates that the CSC pre-CSRO comm format is in use. Range: 14 to 100%. |
SA Pressure Setpoint: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM as the supply air pressure setpoint. This property is valid only on VAV CSC units that are configured for duct pressure control. Range: 0.5 to 4.0 IWC |
SA Pressure Setpoint: Tracer |
Numeric |
This property indicates the value that will be communicated by the system to the UCM and used as the supply air pressure setpoint. This property is valid only on VAV CSC units that are configured for duct pressure control. Range: 0.5 to 4.0 IWC |
SA Pressure: Input |
Numeric |
This property indicates the active value of the supply air pressure. This property is valid only on VAV CSC units that are configured for duct pressure control, or on CV CSC units that are configured with the constant volume duct pressure diagnostic. Range: 0.0 to 5.9375 IWC |
SA Temp Control Band: Local |
Numeric |
This property indicates the active value measured from front panel potentiometer. Range: 2 to 12° F |
SA Temp Reset Setpoint |
Numeric |
This property indicates the active value of UCM-modified supply air cooling setpoint or day cooling setpoint. This value is arrived at by applying the optional reset logic to the base cooling setpoint. Range: 60 to 80 deg F |
SA Temperature |
Numeric |
This property indicates the active value from a hard-wired sensor measuring the supply air temperature. Range: 0 to 190° F |
Supply Fan Run Time |
Numeric |
This property indicates the number of hours the supply fan has run. Counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 hours. |
Supply Fan Starts |
Numeric |
This property indicates the number of starts the supply fan has had. The counter will stop counting at 255, and will be set to 0 if counters are reset. Counters may be reset as a group only via the "Reset" push button on the Timers page of the editor. Range: 0 to 255 starts. |
Supply Fan Status |
Binary |
This property indicates the active status of the supply fan output. 0=OFF, 1=ON |
Timed Override Request |
Binary |
This property indicates whether or not the CSC unit is requesting to be allowed to be in timed override. 0=NO, 1=YES |
Unit Auto/Stop: Tracer |
Binary |
This property indicates the value that will be communicated by the system to the UCM and used to disable the CSC unit or put it into an auto mode. 0=STOP, 1=AUTO. |
Unit Control Source |
Multi-State |
This property indicates the actual state of the front panel switch. 0=STOP, 1=LOCAL, 2=REMOTE |
Update Tag |
Numeric |
Object instance update tag. This tag is used to indicate that the nonvolatile memory resident data within the particular instance has changed. The workstation is the primary user of this property. |
Ventilation Control: Ref |
Referencer |
This property indicates the value to be used by the BCU to determine which value to communicate to the UCM to disable ventilation or allow the CSC unit to determine ventilation control. 0=DISABLE, 1=AUTO |
Ventilation Control: Tracer |
Binary |
This property indicates the value that will be communicated by the system to the UCM and used to control the ventilation mode on the CSC unit. DISABLE means that the CSC will turn off its ventilation output. AUTO means that the CSC will turn on its ventilation when requesting ventilation. 0=DISABLE, 1=AUTO. |
Ventilation Relay: External |
Binary |
This property indicates the active status of a hard-wired output on the CSC unit. When ON, it indicates that the UCM has been placed in the fan ON/ventilate mode, and is on during all occupied modes when ventilation control is AUTO. (Tracer can also control this property AUTO and OFF.) 0=OFF, 1=ON |
Zone Temperature |
Numeric |
This property indicates the active value from a hard-wired input on the CSC unit. This property is valid only on CV CSC units and VAV CSC units configured with heat. Range: 0 to 190° F |