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A. The linkage shall include the following air source
modes for use by the Coordinator as a minimum:
Off, Cooling, Heating, Morning Warm-Up, Night
Time Free Cooling, Pressurization, and Evacuation.
B. The linkage shall also provide system data to the
air source controller for use in its algorithms.
C. The coordinator shall periodically poll its assigned
zones to acquire their updated values.
D. Space temperature and space temperature set points
acquired by the coordinator for use by the air han-
dler controller shall include a weighted factor, pro-
portional to the size of the zone.
E. Only those zones with valid temperature readings
shall be included.
F. The system data shall include average zone temper-
ature, average occupied zone temperature, average
occupied and unoccupied heat/cool set points,
occupancy status, and the next occupied zones ter-
minal time and day.
G. A static pressure reset value shall be supplied for
optimization purposes as applicable.
H. Maximum CO
2
or space relative humidity shall be
supplied to the air source through other networking
means.
I. The system shall provide the capability of using the
above data in the air source algorithms for adaptive
optimal start, Night Time Free Cooling, morning
warm-up, supply temperature reset, dehumidifica-
tion, static pressure control, and Demand Con-
trolled Ventilation adjustments to the mixed air
damper routine.
J. The air handler controller shall, through the Air
Distribution System, bias its occupancy time
schedules to provide optimization routines and
occupant override.
K. For those systems that do not include inherent link-
age software, the Coordinator shall determine the
operational mode of the equipment through its own
flow sensor and a temperature sensor mounted in
the supply ductwork.
L. The vendor shall make it clear in the bid/proposal if
linkage software is not going to be part of their
offering.
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