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Table 14 — System Pilot Maintenance Table
Table 15 — System Pilot Alternate Maintenance Table
Linkage Maintenance Table —
The Linkage Mainte-
nance Table (LINKMNT) displays linkage data for the Linkage
Coordinator zone controller. This data includes air source oper-
ating mode, air source supply temperature, and all set points
and current and occupied temperatures of the reference zone. It
also displays composite occupancy data for the linked zones
including next occupied day and time, next unoccupied day
and time and previous unoccupied day and time. See Table 16.
AIR SOURCE BUS NUMBER — This variable will display
the bus number of the air source that the zone controller will
be communicating Linkage to, if this zone is the Linkage
Coordinator.
Air Source
Bus Number:
Range
0 to 239
Network Access None
AIR SOURCE ELEMENT NUMBER — This variable will
display the Element Address of the Air Source that the zone
controller will be communicating Linkage to, if this zone is the
Linkage Coordinator.
Air Source
Element Number: Display Range
1 to 239
Network Access None
MASTER ZONE ELEMENT NUMBER — This variable will
display the element address of the zone which is the Linkage
Coordinator.
Master Zone
Element Number: Display Range
1 to 239
Network Access Read only
OPERATING MODE — This variable will display the cur-
rent operating mode of the air source, if Linkage is available, or
the mode determined by the Linkage Coordinator using the pri-
mary air sensor, if available. If the primary air sensor has failed
or was not installed, the Linkage Coordinator will assume the
default mode of cooling.
Operating Mode: Display Range
COOLING, HEATING,
FREECOOL,
PRES-
SURE, EVAC, OFF
Network Access Read only
AIR SOURCE SUPPLY TEMPERATURE — This variable
displays the supply temperature reading of the air source.
Air Source Supply
Temperature:
Units
F (C)
Display Range
–40 to 245
Network Access None
START BIAS TIME — This variable displays the Start Bias
Time, in minutes, calculated by the air source. The Start Bias
Time is calculated to bring the temperature up or down to the
set point under the optimum start routine. This value will be
sent to all associated zones for optimum start of zone control-
lers. This function is supported by all Carrier equipment which
perform linkage.
Start Bias Time:
Display Units
minutes
Display Range
0 to 255
Network Access None
OCCUPIED HEAT SET POINT — This variable displays
the weighted average of the occupied heat set point, calculated
by the linkage coordinator, from the information received from
polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Occupied
Heat Set Point:
Display Units
F (C)
Display Range
40.0 to 99.9
Network Access None
OCCUPIED COOL SET POINT — This variable displays
the weighted average of the occupied cool set point, calculated
by the linkage coordinator, from the information received from
polling its associated zones. The set points are weighted by the
maximum airflow capacities of the zone controllers scanned by
the linkage coordinator.
Occupied
Cool Set Point:
Display Units
F (C)
Display Range
45.0 to 99.9
Network Access None
UNOCCUPIED HEAT SET POINT — This variable dis-
plays the weighted average of the unoccupied heat set point,
calculated by the linkage coordinator, from the information
received from polling its associated zones. The set points are
weighted by the maximum airflow capacities of the zone
controllers scanned by the linkage coordinator.
Unoccupied
Heat Set Point:
Display Units
F (C)
Display Range
40.0 to 99.9
Network Access None
UNOCCUPIED COOL SET POINT — This variable dis-
plays the weighted average of the unoccupied cool set point,
calculated by the linkage coordinator, from the information re-
ceived from polling its associated zones. The set points are
weighted by the maximum airflow capacities of the zone con-
trollers scanned by the linkage coordinator.
Occupied
Cool Set Point:
Display Units
F (C)
Display Range
45.0 to 99.9
Network Access None
DESCRIPTION
VALUE
UNITS
STATUS
FORCE
NAME
Terminal Mode
HEAT
MODE
Controlling Setpoint
69.0
dF
CNTSP
Linkage Master (coordinator)
Yes
LINKMAST
Space Temperature
66.0
dF
SPACE_T
Occupied
No
ZONEOCC
Occupied Heat Setpoint
70.0
dF
OHSP
Occupied Cool Setpoint
74.0
dF
OCSP
Unoccupied Heat Setpoint
55.0
dF
UHSP
Unoccupied Cool Setpoint
90.0
dF
UCSP
DESCRIPTION
VALUE
UNITS
STATUS
FORCE
NAME
Damper Position
0
%OPEN
DMPPOS
Cooling in Effect
No
COOLFLAG
Heating in Effect
Yes
HEATFLAG
DCV in Effect
No
DCVFLAG
1104
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