KMC Controls FlexStat Operation Guide - Manual (Page 8)

FlexStat 8 Operation Guide, Rev. R
When BAC-1xxxxx models have an application with
the CO
2
sensor AND the modulating economizer
option enabled, menu items for DCV (Demand
Control Ventilation) will appear. For information
about the DCV options, see (Advanced) CO2 Sensor
(and DCV) on page 11 .
Fan Setup
FAN SETUP
SPEEDS:
OFF DELAY (SECS): 180
UNOCC: AUTO
OCC: AUTO
HTG FAN: AUTO
CONSTANT SPEED
For heating applications, Heating Fan is set to Auto
by default but can be disabled if needed (such as for
an FCU that is factory wired to run at a fixed speed
or for a baseboard heater without a fan). The Heating
Fan selection is only available when the application
supports heating and either Occupied fan or Unoc-
cupied fan is set to Auto.
NOTE: For a Fan Fail Alarm, see
Sensor Setup on
page 9 and Alarms on page 23 .
Humidity Setup
HUMIDITY SETUP
DEHUMIDIFICATION
HUMIDIFICATION
DEHUMIDIFICATION
DEHUM: ENABLE
NOTE: If a dehumidification option is enabled, the
Space Humidity Alarm will also be enabled.
See Alarms on page 23 .
NOTE: To see the dehumidification option in the
Additional Setup menu for a Heat Pump
application, select an Aux. Heat option
other than None (the default).
Motion Sensor Setup
MOTION SENSOR
OCC OVERRIDE:
STATE: OCCUPIED
STANDBY: DISABLE
—OFFSET: 3° F
—TIMER (MINS): 30
ENABLE
A motion/occupancy sensor may be enabled (the
default) to trigger occupancy override (enabled by
default, but only functional during scheduled off
times) and occupancy standby in relation to the
scheduled on and off times. (See the chart.)
During scheduled OFF (unoccupied) times,
temperature is controlled according to the setting of
the appropriate heat or cool setback (see Setpoints
on page 25 ). Occupancy override (for 1 hour as a
default) starts when the sensor detects motion.
Temperature will start being controlled according
to the appropriate setpoint. Occupancy override will
end (with the default setting) 1 hour after motion
was last detected. The length of occupancy override
is configurable in the System menu. See System
Modes on page 25 .
During scheduled ON (occupied) times, temperature
is controlled according to the setting of the appro-
priate heat or cool setpoint. If enabled, occupancy
standby sets the temperature back or up (according
to the heating/cooling mode) by the Offset amount
when no motion is detected for the Timer amount (30
minutes by default). The normal setpoint is restored
when motion is detected twice (to reduce false detec-
tions) within three minutes.
NOTE: Occupancy standby, when activated, lets
the temperature go down or up (according
to the relevant mode) by the Offset amount
(3° by default), not the Setback setting in the
Setpoints menu (which usually has a larger
temperature differential meant for a longer
off time).
NOTE: When the Advanced DCV mode is selected,
Standby is enabled by default and when
reverting from Standby back to Occupied
mode, the setpoint is restored by 1° every
15 minutes—to further conserve energy
according to the guidelines by Portland
Energy Conservation, Inc. (PECI). In
Basic or Standard DCV mode or no DCV
is selected, the setpoint value is restored
by the full amount immediately when