Appendix A: VAV Zone Controller Points/Properties
Point Name/Description
Default/Range
Occupied High CO2 Alarm Limit
– The value that the CO
2
sensor must exceed to generate
an
Indoor Air Quality Alarm
in the occupied mode if
DCV Control
is set to
Enable
. There is
a fixed hysteresis of 100ppm for return to normal.
D:
R:
1100ppm
0 to 9999 ppm
Alarm Delay (min/ppm)
– The fractional portion of a minute used to determine the
amount of delay before an indoor air quality alarm is generated when the controller
transitions to the occupied mode. The delay time equals this value multiplied by the
difference between the sensor CO
2
value and the setpoint plus 15 minutes.
D:
R:
0.25 minutes
0.10 to 1.00 minutes
Alarms Displayed on SPT Sensor
Space Temperature Alarm
– If set to display, shows the alarm indicator on the SPT Pro
sensor if the space temperature alarm is active.
D:
R:
Ignore
Ignore/Display
Supply Air Temp Alarm
– Shows the alarm indicator on the SPT Pro sensor if the
Supply
Air Temp Alarm
is active.
D:
R:
Ignore
Ignore/Display
Dirty Filter Alarm
– If set to display, shows the alarm indicator on the SPT Pro and SPT Pro
Plus' sensor if a
Filter
alarm is active.
D:
R:
Display
Ignore/Display
Space High Humidity Alarm
– If set to display, shows the alarm indicator on the SPT Pro
and SPT Pro Plus' sensor if the
Space Relative Humidity
alarm is active.
D:
R:
Ignore
Ignore/Display
Space High CO2 Alarm
– If set to display, shows the alarm indicator on the SPT Pro
sensor if the
Indoor Air Quality Alarm
is in alarm.
D:
R:
Ignore
Ignore/Display
Service Configuration
Navigation:
i-Vu® / Field Assistant:
BAC
view
®:
Properties
>
Equipment
>
Configuration
>
Service Configuration
HOME
>
CONFIG
>
SERVICE
Point Name/Description
Default/Range
Terminal Type
– The type of zone terminal that the controller is installed on. Not available
for VAVB1.
D:
R:
Single Duct
Single Duct
Parallel
Series Fan
Terminal Size
– Shows the value entered as the
Cooling Max Airflow
in the
Flow Control
object.
D:
R:
2100 cfm
(991.2 liters/second)
0 to 99999 cfm
(liters/second)
Disable Series Fan
– When set to
Enable
, the controller disables the fan on a series-type
terminal when the airflow setpoint equals 0. (We do not recommend configuring the
minimum occupied airflow setpoint to 0, as this does not meet minimum ventilation
requirements.)
D:
R:
N/A
N/A
Enable
VAV Zone Controllers
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