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 SmartWire
t
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 = >
