KMC Controls FlexStat Operation Guide - Manual (Page 7)

FlexStat 7 Operation Guide, Rev. R
Advanced Menu
ADVANCED
APPLICATION
CB PROGRAMS
COMMUNICATION
DATE/TIME
DEVICE
INPUTS
LIMITS
The Advanced Menu displays various submenus.
Not all submenus can be seen on the screen at one
time. Scroll up or down to see additional submenus.
NOTE: The Advanced Menu has more submenus
than can appear on the screen at once. Keep
scrolling up or down to see all the options.
(Advanced) Application and Additional Setup
APPLICATION
DEGREES SCALE: °F
APP:
OPT: 4-PIPE
ADDITIONAL SETUP
FAN COIL
ADDITIONAL SETUP
DAMPER
FAN
HUMIDITY
MOTION SENSOR
OPTIMUM START
SENSORS
STAGING
Be sure to select the correct default °F/°C
temperature scale FIRST! To change the
temperature scale after the application is
configured, the selected application will need to be
reset to Not Configured. The change will also not
affect the display until after the FlexStat has been
restarted.
NOTE: During normal operation (after
configuration), the °F/°C temperature scale
can be toggled on the display by pressing
and holding the Enter button. See Display
Options on page 5 .
The type of application (as well as the model of
FlexStat) affects the context-sensitive options under
Additional Setup.
NOTE: If a FlexStat is configured and then a
different application is desired (e.g., AHU
instead of FCU), restoring the FlexStat
to its factory defaults first and then
reconfiguring it is highly recommended.
See Restore Factory on page 27 .
Auxiliary Heat (Heat Pump Only) Setup
AUX HEAT SETUP
AUX HEAT:
DELAY (MINS): 60
COMP OAT LOW: 40° F
COMP LOCKOUT
For HPUs, auxiliary heat can be set for none, with
compressor lockout, or without compressor lockout.
The Delay time controls how long the space temper-
ature must be below the auxiliary heat’s start tem-
perature before auxiliary heat will turn on. (For more
details, see the Auxiliary/Emergency Heat section
under Sequence of Operation (BAC-1xx63/1xxx63) in
the FlexStat Application Guide .)
Comp OAT Low (AV17) is the outside air tempera-
ture value, below which the compressor is locked out
(when lockout is enabled). The user interface min./
max. limits are 0 and 70 degrees, with a default value
of 40 degrees F.
Damper Setup
DAMPER SETUP
ECON:
DCV: ADVANCED
DCV SETUP
MIN POSITION: 0%
CNTRL (0–100%): 2–10 V
ECON ENBLE TEMP: 55° F
LOW LIMIT ALARM: 45° F
MODULATING
If the Economizer option is selected when there is
no mixed air temperature sensor connected, a Low
Limit Alarm will result. See Alarms on page 23 . A Low
Limit Alarm will close the dampers, open the hot
water valve if present, and shut the unit down.
Outside Air Damper Low Limit maintains a mini-
mum mixed air temperature. It will override econo-
mizing, DCV, or other calls for ventilation if low
temperature threatens to damage equipment. For
modulating economizers, OAD Low Limit is enabled
by default but can be disabled if desired (such as for
an AHU with gas heat).
CAUTION
Do not disable the OAD Low Limit if coils or
other equipment may consequently be damaged
by low temperatures.