74
Property Property ID Data type and range Access Description
Lennox_Object_
Cycle_Count
517 Integer (0 - 4294967295) cycles Read Only
Indicates the number of cycles the economizer has
been running.
Lennox_Object_Error 518 Integer (0 - 255) Read Only
Reports any error code the compressor may have
encountered. A value of 0 means no error while any
non-zero value represent an error.
Table 48. Lennox Proprietary Objects - Discharge Air (Object ID: 133)
Property Property ID Data type and range Access Description
Object_Identifier 75 Integer (0-4194302) Read Only
Numeric code that identifies the object (unique with
in Lennox BACnet Device)
Object_Name 77
Character string of 1 character
(min.) to 32 characters (max.)
Read Only
Identifies the Object and is unique within the BACnet
Device.
Object_Type 79
133
(OBJECT_LNX_DIS
CHARGE_AIR)
Read Only
Indicates membership in a particular object type
class.
Object_Temperature 534
Real: Degrees Fahrenheit (-8.75 to
164.45)
Read Only Indicates the temperature of the discharge air.
Object_Duct_Static_
Pressure_Setpoint
535
Integer: Values are 0 - 5 (inches of
water column)
Read Only
Represents the Duct Static Pressure Set Point of
discharge air.
Table 49. Lennox Proprietary Objects - Space Air (Object ID: 133)
Property Property ID Data type and range Access Description
Object_Identifier 75 Integer (0-4194302) Read Only
Numeric code that identifies the object (unique with
in Lennox BACnet Device)
Object_Name 77
Character string of 1 character
(min.) to 32 characters (max.)
Read Only
Identifies the Object and is unique within the BACnet
Device.
Object_Type 79
133
(OBJECT_LNX_INDOOR_AIR)
Read Only
Indicates membership in a particular object type
class.
Object_Temperature 534
Real: Degrees Fahrenheit (36.25 to
100)
Read Write Indicates the temperature of the space air.
Object_Relative_
Humidity
536 Real: Values are 0 to 100 (%RH) Read Write Represents relative humidity of space air.
Object_CO2_Level 537
Real: Values are 300 to 2000
(PPM)
Read Write Indicates the CO2 levels in the space air.
Table 50. Lennox Proprietary Objects - Outdoor Air (Object ID: 133)
Property Property ID Data type and range Access Description
Object_Identifier 75 Integer (0-4194302) Read Only
Numeric code that identifies the object (unique with
in Lennox BACnet Device)
Object_Name 77
Character string of 1 character
(min.) to 32 characters (max.)
Read Only
Identifies the Object and is unique within the BACnet
Device.
Object_Type 79
133
(OBJECT_LNX_OUDOOR_AIR)
Read Only
Indicates membership in a particular object type
class.
Object_Temperature 534
Real: Degrees Fahrenheit (-30.62
to 131.56)
Read Write Indicates the temperature of the outdoor air.
16.7. M3 Unit Controller BACnet Module Installation
1. Connect the BACnet SmartWiret connector as shown in figure 20.
2. No adjustment is necessary to the BACnet module unless the module is at the end of a daisy-chained configuration.
In that case, it is recommended to place a 120 ohm resistor across the '+' and '-' terminals.
3. Upon powering up the M3 Unit Controller, the BACnet module will need to be enabled and configured. Use the
following procedures to complete both tasks:
4. To enable the BACnet module, go to SETUP > INSTALL and run the setup wizard. When Configuration ID 1
appears on the screen, configure position 5 as B. This will enable the BACnet
®
module.
5. To configure the BACnet Network, go to SETUP > NETWORK INTERGRATION = BACNET > BACNET
ADDRESS = > BACNET BAUD RATE = >
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