47
POSITION SINGLE ZONE — This variable displays whether
the individual zone positioning process has been enabled. If
this decision is forced to
Enable
, the Linkage Coordinator zone
controller will set all system zone dampers to their configured
Cool Maximum Positions and display the values in Zone
(1-32) Damper Position variables.
At this time, if any of the Zone (1-32) Damper Position
variables are forced, the zone will be repositioned to this new
maximum position. The forced position will be shown on the
Zone (1-32) Damper Position variable with a
Supervisor
force.
This
Supervisor
force will disappear and the damper’s current
position will display when the new damper position has been
broadcasted to the zone controller's Damper Reference point.
The Damper Reference point will display a
Control
force
which will remain until System Commissioning is disabled and
the Damper Position will go to the new desired position.
NOTE: If this zone controller is not the Linkage Coordinator,
enabling this variable will have no effect.
Position
Single Zone:
Display Range
Enable/Disable
Network Access Read/Write
ZONE (1-32) DAMPER POSITION — This variable displays
the current damper position of all system zones during system
commissioning. These values can be used to verify and change
configured maximum damper positions when All Zone
Dampers to Max is Enabled and verify and change configured
minimum damper positions when All Zone Dampers to Min
is Enabled. The user can also reposition individual zone’s
dampers when Position Single Zone is Enabled. Force this
value to the desired minimum or maximum damper position.
Zone (1-32)
Damper Position: Display Range
0 to 100%
Network Access Read/Write
BYPASS DAMPER POSITION — This variable displays
the bypass damper position.
Bypass
Damper Position: Display Range
0 to 100%
Network Access No
BYPASS PRESSURE SENSOR — This variable displays
the current value of the bypass static system pressure.
Bypass
Pressure Sensor: Display Range
0.00 to 2.00 in. wg
Network Access No
BYPASS PRESSURE SET POINT — This variable displays
the current Bypass Pressure set point. At any time in the system
commissioning process, the user can force the Bypass Pressure
set point. Typically the maximum unit rated duct velocity pres-
sure would be entered in this decision prior to enabling All Zone
Dampers to Maximum. When this value is forced, the new set
point is written to the Pressure Set Point Table in the bypass
controller over the communication network. The bypass con-
troller then controls to the new bypass pressure set point.
Bypass Pressure
Set Point:
Display Range
0.00 to 2.00 in. wg
Network Access Read/Write
Zone Status Maintenance Table —
The Zone Status
Maintenance Table (ZCOMAINT) displays the communica-
tion status of the air source, the optional bypass controller, and
each of the zone controllers in the 3V™ control system. This
table is only active in the Linkage Coordinator zone controller.
See Table 20.
AIR SOURCE STATUS — This variable displays the com-
munication status of the air source.
NOTE: If the zone controller is not a Linkage Coordinator, the
status will be NONE.
Air Source
Status:
Display Range
Com OK, None, Failed
BYPASS COMM STATUS — This variable displays the
communication status of the bypass damper controller.
NOTE: If the zone controller is not a Linkage Coordinator, the
status will be NONE.
Bypass Com
Status:
Display Range
Com OK, None, Failed
ZONE (1-32) COMM STATUS — This variable displays the
communication status of each zone controller.
NOTE: If the zone controller is not a Linkage Coordinator, the
status will be NONE.
Zone (1-32)
Comm Status:
Display Range
Com OK, None, Failed
Zone Device Maintenance Table —
The Zone Device
Maintenance Table (ZDEVMAIN) displays the type of device
found at each address in the 3V control system beginning with the
device found at the address that is one element higher than the
Linkage Coordinator zone controller, decrementing by 1 until the
configured number of zones have been checked. This table is only
active in the Linkage Coordinator zone controller. See Table 21.
BYPASS DEVICE TYPE — This variable displays the type
of device found at the location where there is typically a bypass
controller. This location is one address higher than the Linkage
Coordinator zone controller. Valid displays for this variable are:
•
None = No device present/com. fail/ pending
•
Master = Linkage Coordinator found (typically found at
ZD_DEV01 only)
•
Bypass = bypass controller
•
PDZone = pressure dependent zone
•
PIZone = pressure independent zone
•
Other = other Carrier Network device found
NOTE: If this zone controller is not a Linkage Coordinator, the
value of this display will be
None
.
ZONE (1-32) DEVICE TYPE — This variable displays the
type of device found when the master scans zones 1 through n
where n is the number of zones (1-32) configured in the
Number of Zones decision in the Linkage Configuration Table.
The zones are scanned in descending order, beginning with the
Linkage Coordinator itself at zone n.
Valid displays for this variable are:
•
None = No device present/com. fail/pending
•
Master = Linkage Coordinator found (typically found at
ZD_DEV01 only)
•
Bypass = bypass controller
•
PDZone = pressure dependent zone
•
PIZone = pressure independent zone
•
Other = other Carrier Network device found
NOTE: If this zone controller is not a Linkage Coordinator, the
value of this display will be
None
.
Zone Maintenance Table —
The Zone Maintenance
Table (ZNMAINT) displays the status of the air source (heating,
cooling, ventilation) and the reference values that the zone is
using for control. This table also displays whether this zone is the
Linkage Coordinator, whether there is an override in effect, and
whether there are any loadshed conditions currently in effect.
See Table 22.
OCCUPIED — This variable displays the current occupied
mode for the zone controller. If the zone controller is following its
own local schedule, this is the result of the local schedule status. If
the zone controller is configured to follow a global schedule, this
displays the mode last received from a global schedule broadcast.
Occupied:
Display Range
No/Yes
Network Access Read Only
LINKAGE ZONE — This variable displays if air source link-
age is in effect.
Linkage Zone:
Display Range
No/Yes
Network Access Read Only
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