Product data

9. Thesystem shallprovide adjustableminimum run
times during both heat and cool modes.
10. System shall have the capability to open and
hold open all associated zone dampers in the
event of a unit gas valve becoming stuck in the
open position.
11. The monitor thermostat shall be capable of re-
ceiving and broadcasting both humidity and
outside-air temperature information to the net-
work communication bus.
12. Shall have the ability of establishing separate
adjustable heating and cooling lockout temper-
atures based on outside air temperature. These
temperatures shall be individually configurable
and will prevent unnecessary operation of
heating/cooling within the bounds of the lock-
out temperatures.
13. Shall have the capability to alarm on adjustable
unit discharge temperature for both heating and
cooling. Shall have the ability to provide for unit
reset when required for servicing purposes.
14. System shallhave theability toautomaticallystag-
ger the start times of multiple units upon power
up following a power failure.
15. Unit control relay pack shall be available with an
outdoor duty rating, suitable for installation and
operation in outdoor applications.
16. Calibration of the system sensors shall be adjust-
able from the monitor thermostat without requir-
ing the sensor to be taken out of service.
17. Shall have an on-board timeclock capable of
broadcasting to the network. It shall be cap-
able of receiving time broadcasts from other net-
work devices. The clock shall support 365-day
scheduling,withintegral DaylightSavingsandleap
year capability. The clock shall be configurable
in one minute increments. The clock shall also
have the ability to be brought off-line via soft-
ware both locally and remotely. Shall be capable
of 18 holiday schedules with up to 99 days per
schedule.
18. Shall be capable of establishing, adjusting, and
storing both an occupied and unoccupied pro-
gram format on a daily basis. Scheduling in-
crements shall be in 1-minute sectors, with 8
program periods available.
19. Shall be capable of either following its own pro-
gram schedules for occupied and unoccupied
operation or follow the program schedule of an-
other device on thenetwork communicationbus.
20. Shall have integral unoccupied override capabil-
ity to provide up to 4 hours of additional occu-
pied operation without additional programming.
21. Shall be capable of displaying separate heating
and cooling set points and additional diagnostic
information.Diagnostic information shallinclude:
current system mode, time of day, security
access level, space temperature, supply-air tem-
perature, outside-air temperature,relative humid-
ity, fan status, filter status, and indoor air quality
(IAQ) status.
22. Shall be capable of displaying temperature in-
formation in Fahrenheit or Celsius temperature
scales in increments of one tenth of a degree.
The capability shall be provided to display space
temperature and set point on a rotating basis.
23. Shall include an adjustable set point limiting fea-
ture to allow a high and low range set point limit.
24. Shall have an on-board space temperature sen-
sor. The VVTt monitor thermostat shall also be
capable of remote space sensing from a location
away from the thermostat when using a Remote
RoomSensor. Capabilityshallbe providedtoread
space temperature separatelyfrom thelocal VVT
monitorthermostat, fromtheRemote Room Sen-
sor, or to read an average from the local and up
to 4 Remote Room Sensors.
25. Shall include the ability to display system diag-
nostics to indicate system operation, operating
alarms, or service requirements. Alarms shall in-
clude fanstatus, filter status, IAQ status, unit sup-
ply air temperature for both heating and cooling,
and network communication errors.
26. Shallinclude anintegral zoneusage meterto read
and store (in minutes) the amount of time zone
demand matches the system mode, the amount
of time the system is in unoccupied override, and
the amount of time the zone demand matches
the system mode during unoccupied override.
27. Shall have the ability to provide demand ventila-
tion IAQcontrol throughthe economizer with an
indoor air quality sensor. The sensor shall mea-
sure the amount of CO
2
present and control the
amount of outside air entering the conditioned
space. The IAQ sequence shall provide high and
low temperature lockout, space temperature re-
set, adjustable delay time for alarm notification,
and adjustable time delay for economizer.
28. The IAQ sensor shall be available in duct mount,
wall mount, and wall mount with LED display.
The IAQ set point (ppm) shall be adjustable.
29. The system shall have the capability to provide
pre-occupancy purge for one hour before occu-
pancy to flush the building with outside air.
30. The monitor thermostat shall have the capability
of providing control of the HVAC unit before all
ofits associatedzonecontrollers are installed.This
construction modecapability shall be changeable
to a Monitor-Only or VVT Monitor mode follow-
ing completion of zone damper installation.
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