Orion System PT-Link II BACnet3 - Manual (Page 39)

PT-Link II BACnet3 Interface
7. PARAMETER TABLES
39
BACnet Properties for the VCB-X Controller
Param-
eter
Name Object Description Limits
Low Sup-
ply Air
Tempera-
ture Alarm
LoSaAlm BI: 37 The Supply Air
has fallen below
the Low SAT
Cutoff Setpoint
and cooling
stages will begin
to deactivate.
If the unit is in
Economizer,
Vent, or Heating
Mode the Supply
Fan will shut off.
Supply Air
Cooling
Setpoint
SaClSt AV:77 Supply Air Cool-
ing Setpoint. If
Supply Air Reset
is confi gured,
this is the Low
SAT Cooling
Reset Value.
30 80
Supply Air
Cool High
Reset
SaClRt AV: 324 If Supply Air Re-
set is confi gured,
this is the High
SAT Cooling
Reset Value.
0 100
Supply Air
Heat High
Reset
SaHtRt AV: 325 If Supply Air Re-
set is confi gured,
this is the High
SAT Heating
Reset Value.
0 250
Supply Air
Heating
Setpoint
SaHtSt AV:78 Supply Air Heat-
ing Setpoint. If
Supply Air Reset
is confi gured,
this is the Low
SAT Heating
Reset Value.
40 240
Supply Air
Tempera-
ture
SaTp AI:83 Current value of
the Supply Air
Temperature
Sensor.
Bad
Supply Air
Tempera-
ture Sensor
SaTpAlm BI: 2 Indicates a fail-
ure of the Supply
Air Temperature
Sensor.
Low
Supply
Air Temp
Cutoff
LoSaCf AV: 344 Cooling will be
disabled if the
Supply Air Tem-
perature falls
below this value.
See sequence for
more details.
0 100
High
Supply
Air Temp
Cutoff
HiSaCf AV: 345 Heating will be
disabled if the
Supply Air Tem-
perature rises
above this value.
See sequence for
more details.
0 250
BACnet Properties for the VCB-X Controller
Param-
eter
Name Object Description Limits
Smoke
Alarm /
Emergency
Shutdown
SmokeAlm BI: 119 Indicates the
Smoke sensor
has been acti-
vated. This will
shut down the
unit.
Space
Tempera-
ture
SpcTp AI:72 Current value of
the space tem-
perature sensor.
Space
Tempera-
ture Offset
SpcTpOst AV:71 If the Space
Temperature
Sensor is reading
incorrectly, use
this option to
enter an offset
to adjust the
Sensor’s
Temperature.
-100 100
Space
Tempera-
ture Sensor
Lost
SpcTpAlm BI: 101 Indicates
a failure of the
Space Tempera-
ture Sensor.
Static
Pressure
StaticPr AI:270 Current Static
Pressure.
Static
Pressure
Setpoint
StatPrSt AV:290 Current Static
Pressure
Setpoint.
.10 3.0
Static
Pressure
Setpoint
Deadband
DuctPrDb AV:357 Value above and
below the Duct
Static Pressure
Setpoint where
no control
change occurs.
.01 0.5
Suction
Pressure
SucPr AI: 333 Current Suction
Pressure value.
High
Suction
Pressure
Alarm
HiSucPr BI: 352 Indicates
Suction Pressure
is above the
High Suction
Pressure Cool-
ing (Heating)
Setpoint.
Low
Suction
Pressure
Alarm
LoSucPr BI: 383 Indicates
Suction Pressure
is below the Low
Suction Pressure
Cooling (Heat-
ing) Setpoint.
Supply Air
CFM
SaCFM AI:195 Current Supply
Airfl ow
Measurement.
High
Supply Air
Tempera-
ture Alarm
HiSaAlm BI: 33 The Supply Air
has risen above
the High SAT
Cutoff Setpoint.
Heating stages
begin to deacti-
vate and the fan
continues to run.
7.1 VCB-X BACnet Parameters