Symbio 700 Precedent BACnet point configuration for BAS Integration – Trane Commercial HVAC Help Center

Object Naming Conventions

Suffix	Description
Status	Points with the Status suffix are defined as read-only. The status point reports the value being used by the controller.
Local	Points with the Local suffix are defined as read-only. The local point reports values associated with controller sensors, both wired and wireless. The local value may or may not be actively used by the controller, depending on the presence or absence of a communicated value (BAS). When both a local and communicated value exist, the communicated value is used.
Active	Points with the Active suffix are defined as read-only. The active point reports the value being input to the controller.
Setpoint	Points with the Setpoint suffix are defined as either read-only or read/write. For BACnet®, the binary input, analog input, and multi-state input points are all read-only. These setpoints report the value currently in use by the controller. The analog value, binary value, and multi-state value points are all read/write. These points are provided for use by the building automation system (BAS). When used, these points are written internally to the arbitration logic. This defines the interaction with hardwired points, editable software configuration points, and the relinquish default value/state. Refer to the Appendix for additional information.
Input	Points with the Input suffix are defined as read-only. These points normally reflect the status of a sensor input, either hardwired or communicating wirelessly (AirFi®). However, the input point reflects the arbitrated result of the controller sensor input and a communicated value, if present. When both a controller sensor and communicated value exist, the controller will use and report the communicated value.
Arbitrator	Points with the “Arbitrator” suffix are to be used as read-only. The arbitrator prioritizes inputs from communicating points, hardwired points and stored defaults points. The priority array of the arbitration point displays each of the values provided, including the active status, indicating which of the input sources is being used.
BAS	Points with the BAS suffix are defined as read/write. These points are provided for use by the building automation system (BAS). When used, these points are written to arbitration logic. This defines the interaction with hardwired points, editable software configuration points and the relinquished default value/state.
Command	Points with the Command suffix are defined as read/write. These points are written to change the default behavior of the controller. Once written, these point values may be persisted.
Request	Points with the Request suffix are defined as read/write. These points are written to request a change the operating behavior of the controller.

* For BAS, use the object value in bold blue color

Points Configuration for Space Temperature (CVZT & VVZT)

Object ID	Object Name	Description	Configuration Dependency	Read/ Write	Reliquish Default	Heartbeat Interval (seconds)
MV-11100	Arbitration Method Request	Setting for unit to use "Enable External/BAS Control" or "Standalone Control" data prioritization	Always	Write	Enable External/BAS Control	1 = Enable External/BAS Control 2 = Standalone Control
BV-10104	Supply Fan Configuration Command	Used to command the supply fan configuration as either cycling or continuous	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor	Write	Continuous	false = Cycling true = Continuous
BV-10109	Filter Timer Reset	Command the unit to reset the accumulated filter run hours.	Always	Write	Accumulating	false = Accumulating true = Reset
BV-10110	Reset Diagnostic	Used to initiate a request to reset any controller diagnostics	Always	Write	Normal	false = Normal true = Reset
MV-10104	Heat Cool Mode Request	Used to command the unit into a heat/cool mode	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor and System Type is Configured as VVDA	Write	Auto	1 = Auto 2 = Heat 3 = Morning Warm-up 4 = Cool 5 = Night Purge 6 = Pre Cool 7 = Off 8 = Test 9 = Emergency Heat 10 = Fan Only 11 = Free Cool 12 = Ice-Making 13 = Max Heat 14 = Economizer 15 = Dehumidify 16 = Calibrate
MV-10106	Occupancy Request	Normally used by the BMS to command the unit into an occupancy mode	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor and System Type is Configured as VVDA	Write	Auto	1 = Occupied 2 = Unoccupied 3 = Occupied Bypass 4 = Occupied Standby 5 = Auto *Note Below 6
AV-10106	Space Temperature Arbitrator	Indicates the space temp determined by arbitration	Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	65535°F Range 40 - 200	0 *Note Below 1
AV-10114	Space Temperature BAS	Used to send the space temperature value	Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	0°F Range 40 - 200	900 Full BAS Control Note Below 2 Note below 5
AV-10127	Space Temperature Setpoint BAS	BAS-supplied space temperature setpoint value	Space Controller Configured as Single Setpoint Zone Sensor	Write	72.5°F Range 40 - 115	0
AV-10130	Occupied Offset	Difference between the occupied cool and heat setpts when a single setpoint is used	Space Controller Configured As Single Setpoint Zone Sensor	Write	2.5°F Range 1 - 10	0
AV-10123	Unoccupied Cooling Setpoint	Used to define the cooling temp setpoint used for control in unoccupied mode	Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	85°F Range 50 - 90	0
AV-10124	Unoccupied Heating Setpoint	Used to define the heating temp setpoint used for control in unoccupied mode	Heating Installed and Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	60°F Range 50 - 90	0
AV-10154	Space Cooling Setpoint High Limit BAS	Space Cooling Setpoint High Limit BAS	Space Controller is Configured as Single or Dual Setpoint Zone Sensor and System Type is Configured as VVZT or CVZT	Write	90°F Range 45 - 95	0 *Note Below 3
AV-10155	Space Cooling Setpoint Low Limit BAS	Space Cooling Setpoint Low Limit BAS	Space Controller is Configured as Single or Dual Setpoint Zone Sensor and System Type is Configured as VVZT or CVZT	Write	50°F Range 40 - 110	0 *Note Below 3
AV-10157	Space Heating Setpoint High Limit BAS	Space Heating Setpoint High Limit BAS	Space Controller is Configured as Single or Dual Setpoint Zone Sensor and System Type is Configured as VVZT or CVZT and Primary Heating is Configured	Write	80°F Range 40 - 105	0 *Note Below 3
AV-10158	Space Heating Setpoint Low Limit BAS	Space Heating Setpoint Low Limit BAS	Space Controller is Configured as Single or Dual Setpoint Zone Sensor and System Type is Configured as VVZT or CVZT and Primary Heating is Configured	Write	50°F Range 40 - 105	0 *Note Below 3
AV-11140	Discharge Air Cooling Setpoint (Target)	Discharge Air Cooling Setpoint (Target)	System Type Configured as VVZT and Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	55°F Range 40 - 80	0 *Note Below 4
AI-10218	Space Temperature Input	Indicates the space temp from a wired sensor.	Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Read	Range 40 - 200	N/A Using Zone Sensor
AI-11159	Space Temperature Cooling Setpoint Input	Indicates the (occupied) cooling setpoint from the connected wired space sensor	Space Controller Configured as Dual Setpoint Zone Sensor	Read	Range 52 - 95	N/A *Note Below 5
AI-11160	Space Temperature Heating Setpoint Input	Indicates the (occupied) heating setpoint from the connected wired space sensor	Heating Source Installed and Space Controller Configured as Dual Setpoint Zone Sensor	Read	Range 49 - 92	N/A *Note Below 5
AI-11161	Space Temperature Setpoint Input	Space Temperature Setpoint from a connected wired sensor.	Space Controller Configured as Single Setpoint Zone Sensor	Read	Range 45 - 95	N/A

Notes

Note 4

Single Zone VAV operates in DX and economizer cooling modes of operation when configured for System Type: VVZT (variable speed indoor fan type). A valid space temperature and discharge air temperature sensor is required as input. If the discharge air temperature input becomes invalid, the control automatically reverts to Single Loop Space Temperature Control.

Single Zone VAV is a control method of space temperature control that operates the supply fan at the lowest speed allowed for the cooling capacity required to satisfy the load in the space. As cooling capacity increases, the supply fan speed will increase to a defined minimum speed for the operating cooling capacity and modulate accordingly until it reaches 100 percent of its allowed range of operation.

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

Points Configuration for Discharge Air Control (VVDA)

Object ID	Object Name	Description	Configuration Dependency	Read/ Write	Reliquish Default	Heartbeat Interval (seconds)
MV-11100	Arbitration Method Request	Setting for unit to use "Enable External/BAS Control" or "Standalone Control" data prioritization	Always	Write	Enable External/BAS Control	1 = Enable External/BAS Control 2 = Standalone Control
BV-10104	Supply Fan Configuration Command	Used to command the supply fan configuration as either cycling or continuous	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor	Write	Continuous	false = Cycling true = Continuous
BV-10109	Filter Timer Reset	Command the unit to reset the accumulated filter run hours.	Always	Write	Accumulating	false = Accumulating true = Reset
BV-10110	Reset Diagnostic	Used to initiate a request to reset any controller diagnostics	Always	Write	Normal	false = Normal true = Reset
MV-10104	Heat Cool Mode Request	Used to command the unit into a heat/cool mode	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor and System Type is Configured as VVDA	Write	Auto	1 = Auto 2 = Heat 3 = Morning Warm-up 4 = Cool 5 = Night Purge 6 = Pre Cool 7 = Off 8 = Test 9 = Emergency Heat 10 = Fan Only 11 = Free Cool 12 = Ice-Making 13 = Max Heat 14 = Economizer 15 = Dehumidify 16 = Calibrate
MV-10106	Occupancy Request	Normally used by the BMS to command the unit into an occupancy mode	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor and System Type is Configured as VVDA	Write	Auto	1 = Occupied 2 = Unoccupied 3 = Occupied Bypass 4 = Occupied Standby 5 = Auto *Note Below 1
AV-10121	Discharge Air Cooling Setpoint BAS	Used to request the discharge air temp cooling setpoint value	System Type is Configured as VVDA	Write	55°F Range 40 - 80	0
AV-10122	Discharge Air Heating Setpoint BAS	Used to request the discharge air temperature heating setpoint value	System Type is Configured as VVDA and Primary Heat is Configured or Conventional Thermostat with modulating gas heat installed.	Write	85°F Range 50 - 90	0 *Note Below 2
AV-10143	Duct Static Pressure Setpoint BAS	Used to request the duct static pressure setpoint value	System Type is Configured as VVDA	Write	1" W.C. Range 50 - 3.5	0
AV-10123	Unoccupied Cooling Setpoint	Used to define the cooling temp setpoint used for control in unoccupied mode	Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	85°F Range 50 - 90	0
AV-10124	Unoccupied Heating Setpoint	Used to define the heating temp setpoint used for control in unoccupied mode	Heating Installed and Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	60°F Range 50 - 90	0

Notes

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

Morning & Daytime Warmup

Object ID	Object Name	Description	Configuration Dependency	Read/ Write	Reliquish Default	Object States
BV-10112	Morning Warmup Enable Command	Normally used by the BMS to enable morning warmup	Space Controller is Configured as Single Setpoint or Dual Setpoint Zone Sensor or System Type is configured as VVDA and Primary Heat is Installed	Write	Disabled	false = Disabled true = Enabled
BV-10111	Daytime Warmup Enable Command	Used to enable daytime warmup	System Type is Configured as VVDA and Primary Heat is Configured.	Write	Disabled	false = Disabled true = Enabled
AV-10141	Morning Warmup Setpoint BAS	Defines the space temp below which MWU is enabled	Primary Heating Source is Configured and Space Controller is Configured as Single or Dual Setpoint Zone Sensor	Write	70°F Range 50 - 90	N/A *Note Below 1
AV-10149	Daytime Warmup Setpoint BAS	Defines the space temp below which daytime warmup will be enabled	System Type is Configured as VVDA and Primary Heat is Configured.	Write	68°F Range 50 - 90	N/A *Note Below 2
AV-10122	Discharge Air Heating Setpoint BAS	Used to request the discharge air temperature heating setpoint value	System Type is Configured as VVDA and Primary Heat is Configured or Conventional Thermostat with modulating gas heat installed.	Write	100°F Range 50 - 158	N/A *Note Below 3

Notes

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

Economizer

Object ID	Object Name	Description	Configuration Dependency	Read/ Write	Reliquish Default	Heartbeat Interval (seconds)
AV-11132	Design Minimum OA Damper Position at Min Fan Capacity	Design Minimum OA Damper Position at Min Fan Capacity	Outside Air is Configured as 0-100% and Indoor Fan Type is Configured as Variable Speed or Multi Speed	Write	25% Range 0 - 100	0 *Note Below 1
AV-11131	Design Minimum OA Damper Position at Mid Fan Capacit	Design Minimum OA Damper Position at Mid Fan Capacity	Outside Air is Configured as 0-50% Motorized Damper or 0-100% and Indoor Fan Type is Configured as Variable Speed	Write	15% Range 0 - 100	0 *Note Below 1
AV-11130	Design Minimum OA Damper Position at Full Fan Capacity	Design Minimum OA Damper Position at Full Fan Capacity	Outside Air is Configured as 0-100%	Write	10% Range 0 - 100	0 *Note Below 1
AV-10144	Economizer Minimum Position Setpoint BAS	Used to request the ecominizer minimum position setpoint	Outside Air is Configured as 0-50% Motorized Damper or 0-100%	Write	25% Range 0 - 50	0 *Note Below 2

Notes

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

Demand Controlled Ventilation

Object ID

Object Name

Description

Configuration Dependency

Read/ Write

Reliquish Default

Heartbeat Interval (seconds)

AV-10175

Space CO2 High Limit

Used to define the CO2 high limit, for ventilation purposes

Demand Controlled Ventilation is Configured as Installed

Write

1100 PPM

Range 1000 - 2000

*Note Below 1

AV-10176

Space CO2 Low Limit

Normally provided by the BMS to define the CO2 low limit

Demand Controlled Ventilation is Configured as Installed

Write

400 PPM

Range 300 - 1900

*Note Below 1

Note

Demand controlled ventilation reduces energy consumption by reducing the outdoor air damper below design minimum ventilation based on space CO2. When Demand Controlled Ventilation is configured and Supply Fan Compensation is enabled, DCV resets the outdoor air damper minimum position based on space CO2 and supply fan speed. Decreasing CO2 levels will decrease damper position below the Design Minimum toward the DCV minimum damper position setpoint. Increasing CO2 level will increase damper position toward design minimum setpoint. DCV requires a valid space CO2 value from a building management system or wired sensor. If Space CO2 value is invalid or Supply Fan Compensation is disabled, the Symbio™ 700 will revert to Outdoor Air Minimum Position Control.

Outdoor Air Damper Controlling Setpoints:

Design Minimum OA Damper Position at Full Fan Capacity

(AV-11130) Writable

Design Minimum OA Damper Position at Mid Fan Capacity

(AV-11131) Writable

Design Minimum OA Damper Position at Min Fan Capacity

(AV-11132) Writable

DCV Minimum OA Damper Position at Full Fan Capacity

(AV-11133) Writable

DCV Minimum OA Damper Position at Mid Fan Capacity

(AV-11134) Writable

DCV Minimum OA Damper Position at Min Fan Capacity

(AV-11135) Writable

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

0 to 50 percent Motorized Damper

Object ID

Object Name

Description

Configuration Dependency

Read/ Write

Reliquish Default

Heartbeat Interval (seconds)

AV-11286

Motorized Damper Position Setpoint

Outside Air is Configured as 0-50% Motorized Damper

Write

10%

Range 0 - 50

AV-10144

Economizer Minimum Position Setpoint BAS

Used to request the ecominizer minimum position setpoint

Outside Air is Configured as 0-50% Motorized Damper or 0-100%

Write

25%

Range 0 - 50

*Note Below 1

AI-11148

Remote Minimum Position

Hardwired remote minimum position for OA damper control.

Remote Minimum Position is Configured as Installed

Read

N/A

*Note Below 2

Notes

Note 2

With an installed Customer Connection Module and Remote Minimum Position is configured in the Symbio™ 700, a wired potentiometer can be used to adjust the outdoor air damper minimum position setpoint in the range of 0 to 50 percent (0 to 270 ohms). The setting is reported via Remote Minimum Position. If Remote Minimum Position input and Demand Controlled Ventilation is installed, the Remote Minimum Position provides the minimum damper position setpoint at full fan capacity. Tables in the application guide provide details of when the Remote Minimum Position input is utilized in minimum ventilation control.

When Remote Minimum Position is installed with Demand Controlled Ventilation, the Remote Minimum Position input is used in place of Design Minimum OA Damper Position at Full Fan Capacity setpoint. See the tables in the application guide for more details.

Object ID

Object Name

Description

Configuration Dependency

Read/ Write

Reliquish Default

Heartbeat Interval (seconds)

AV-10175

Space CO2 High Limit

Used to define the CO2 high limit, for ventilation purposes

Demand Controlled Ventilation is Configured as Installed

Write

1100 PPM

Range 1000 - 2000

*Note Below 1

AV-10176

Space CO2 Low Limit

Normally provided by the BMS to define the CO2 low limit

Demand Controlled Ventilation is Configured as Installed

Write

400 PPM

Range 300 - 1900

*Note Below 1

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

Relief Damper Control - Power Exhaust

Object ID

Object Name

Description

Configuration Dependency

Read/ Write

Reliquish Default

Heartbeat Interval (seconds)

AV-10168

Relief Enable Position Setpoint

The OA damper position above which the Relief sequence is enabled

Space Pressure Control is Configured

Write

25%

Range 0 - 100

*Note Below1

Dehumidification - Hot Gas Reheat

Object ID

Object Name

Description

Configuration Dependency

Read/ Write

Reliquish Default

Object States

BV-10106

Dehumidification Enable Command

Normally used by the BMS to disable unit dehumidification

Hot Gas Reheat is Configured as Installed

Write

Auto

false = Disabled

true = Auto

Notes

Dehumidification control is a mode of Cooling when hot gas reheat is configured. Symbio™ 700 supports three configurable dehumidification control options: Dew Point (default), Relative Humidity, or Humidistat control for occupied and unoccupied operation.

The following Symbio 700 points are provided for dehumidification control.

Unoccupied Dehumidification Enable BAS (BV-11261), the default setting is Enabled for unoccupied dehumidification to operate based on the configured dehumidification control option. This setting is editable and when set to Disabled will disable dehumidification during unoccupied mode.
Dehumidification Status (BV-11255), binary status value that reports dehumidification control is Active or Inactive.
Dehumidification Control Status (AV-11281) reports the hot gas reheat valve status.
Dehumidification Disable Space Temperature Setpoint (AV-11398), is for CVZT/VVZTcooling only units without heat installed or VVDA units with a space temperature. If space temperature falls below this setpoint (default setting is 68°F), dehumidification disables.

Dew Point

Symbio 700 references Space Temperature Active and Space Humidity Active to calculate Space Dew Point. Likewise, Outdoor Air Temperature Active and Outdoor Air Humidity Active are referenced to calculate Outdoor Air Dew Point.

Instance	Name
AV-11178	Space Temperature Active
AI-10116	Space Humidity Active
AI-10226	Space Dew Point
AV-11338	Space Dew Point Setpoint Active
AV-10228	Space Dew Point Unoccupied Setpoint Active
AV-11113	Space Dehumidification Setpoint Offset BAS - Active
AI-10118	Outdoor Air Temperature Active
AI-10120	Outdoor Air Humidity Active
AI-10117	Outdoor Air Dew Point
AV-11341	Outdoor Air Dew Point Setpoint BAS – Active
AV-11321	Dew Point Setpoint Offset
AV-11342	Unoccupied Dehumidification Timer

Relative Humidity

Occupied dehumidification control initiates when the Space Humidity Active is greater than the Space Dehumidification Setpoint BAS - Active. Occupied dehumidification terminates when Space Humidity Active is less than Space Dehumidification Setpoint BAS - Active minus Space Dehumidification Setpoint Offset BAS - Active.

Instance	Name
AV-11178	Space Temperature Active
AI-10116	Space Humidity Active
AV-11136	Space Dehumidification Setpoint BAS - Active
AV-10214	Space Dehumidification Unoccupied Setpoint Active
AV-11113	Space Dehumidification Setpoint Offset BAS - Active

Humidistat

Dehumidification operation initiates when Customer Options Module, Humidistat binary input is active. When Humidistat is used for Dehumidification control, compressors stage to 100% cooling capacity. Dehumidification operation terminates when Customer Options Module, Humidistat binary input is inactive. Reheat Humidistat Input (BI-11143) reports the status of the hardware input. If a Space Relative Humidity sensor is installed, the Humidistat input will be ignored.

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

Heat Pump Heating Lockout

Object ID

Object Name

Description

Configuration Dependency

Read/ Write

Reliquish Default

Heartbeat Interval (seconds)

AV-11274

Heat Pump Heating Lockout Setpoint

Setpoint at which to disable heat pump heating based on outdoor air temperature.

Heat Pump Systems

Write

0°F

Range (e) - 45

*Note Below1

For more information, reference the Application Guide

https://support.trane.com/hc/en-us/articles/15455235169677-Precedent-Symbio-700-controller-Application-Guide

VVAD/MZVAV Supply Air Temperature Reset

Discharge Air Cooling and Heating Reset (Follow the instructions on the link provided below)

https://support.trane.com/hc/en-us/articles/42311787937421-VVDA-MZVAV-Supply-Air-Temperature-Reset

Occupancy Status Definitions

Occupied	The controller operates in an occupied mode providing temperature and ventilation control to the occupied heating and cooling setpoints.
Unoccupied	The control is typically shut down and does not provide temperature control to the normal occupied setpoints. No ventilation is provided. Temperature control is determined by energy conservation and building protection thresholds.
Occupied Bypass	The control is temporarily in an Occupied state for a specified period and will automatically return to unoccupied operation when the bypass timer expires. The Occupied Bypass Timer is user-adjustable; setting the timer to 0 minutes effectively disables Timed Override function at the equipment controller.
Occupied Standby	Space temperature control units in an Occupied Standby state control to occupied heating and cooling standby temperature setpoints. Standby does not apply to controllers configured for discharge air control (such as VVDA), which will translate Standby into an Occupied status.

WARNING:

Information in this article is intended for use by individuals possessing adequate backgrounds of electrical and mechanical experience and who comply with all federal, state, and local laws, rules, orders, or regulations related to the installation, service, or repair of a heating or central air conditioning product. Any attempt to install, service, or repair a heating or central air conditioning product may result in personal injury and/or property damage. The manufacturer or seller cannot be responsible for the interpretation of the information contained herein, nor can it assume any liability in connection with its use.

Object Naming Conventions

Points Configuration for Space Temperature (CVZT & VVZT)

Points Configuration for Discharge Air Control (VVDA)

Morning & Daytime Warmup

Economizer

Demand Controlled Ventilation

0 to 50 percent Motorized Damper

Relief Damper Control - Power Exhaust

Dehumidification - Hot Gas Reheat

Dew Point

Relative Humidity

Humidistat

Heat Pump Heating Lockout

VVAD/MZVAV Supply Air Temperature Reset

Occupancy Status Definitions

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