ACONT900AC43UA
Pub. No. 11-HD04D1-2
69-2080—05
18
the filter timer value can be viewed at any time by simply
pressing the More key until the filter timer is displayed on
the screen.
NOTE: Both the filter timers are auto discoverable ISU
settings. If no AccuLink
TM
communicating filter-
ing device has been discovered, the auto discov-
ered value will default to 0. To enable one or
both timers, change ISU 0500 and/or ISU 0501
to a value other than 0.
Fan Selections
Pressing the Fan key selects whether the indoor fan
motor runs in the On, Automatic, or Circulation mode. In
On mode, the fan motor runs continuously. The fan
automatically follows the fan schedule in Automatic mode.
Circulation control will provide a variable circulation
determined by the Adaptive Intelligent Circulation (AIC)
algorithm running the fan between 20% and 60% of the
time. Each schedule period (Wake, Leave, Return, Sleep)
can be programmed with a specific fan setting (On,
Automatic, or Circulation).
Screen Locked
Locking the control’s touch screen keys can help prevent
unwanted tampering with or changing of control settings.
The Comfort Control can either be fully locked or partially
locked. Both options continuously display “Screen
Locked” on the screen. Changing ISU Number 0670 to 0
will unlock the keys and “Screen Locked” will disappear.
Installer System Tests
The built in Installer System Test mode allows the servicer
to quickly and easily test the Comfort Control’s operation
with HVAC equipment and makes diagnostic procedures
a snap. System configuration determines which tests are
available and the corresponding number of stages shown
(see Table 7, Tests 1 - 6 for details).
Default Factory Settings
The Comfort Control is shipped with a set of factory
default settings. The factory default settings can be
restored at any time using the Installer Setup menu (see
Table 4, ISU Number 0710).
NOTE: Before you perform Auto-Discovery Mode (ISU
Number 0710), is it recommended that you
record all your user settings. All user setting
choices will be reset to factory defaults in Auto-
Discovery Mode.
Wait Indicator
“Wait” will be displayed when the setpoint is changed in
the direction of calling for additional system capacity or
the outdoor unit is in Charge Assist
TM
mode. “Wait”
indicates system time delays are being enforced, and the
control is adjusting to the new setting.
Calibrate Indoor Temperature
This option allows calibration of the room temperature
sensor. The selected number is number of degrees, plus
or minus, which will be added to the actual temperature.
The number can range b3 and -3 degree in 1-
degree increments. Factory default is 0. The adjusted
value will be used as the temperature for both display and
control action.
Calibrate Indoor Humidity
This option allows calibration of the indoor humidity
sensor. The selected number is percent relative humidity,
plus or minus, which will be added to the actual indoor
humidity. The number can range b5% and -5% in
1% increments. Factory default is 0. The adjusted value
will be used as the humidity for both display and control
action.
Outdoor Temperature Sensor
For accuracy, the initial reading of the outdoor
temperature sensor requires five minutes to stabilize. See
the Sensor Instructions for installation information.
NOTE: If the device is using an outdoor sensor
for
control
and the outdoor temperature sensor
becomes unavailable, the display will show
dashes “- -” and generate an Alert. If the device
is not using an outdoor sensor
for control
and
the outdoor temperature sensor becomes
unavailable, no outdoor value will be displayed.
The Comfort Control will not send an Alert.
Humidification
Indoor Humidification Control
This feature attempts to control the indoor humidity to the
user’s humidification setpoint using a humidifier. The
humidification setpoint can range between 10% and 60%
in 5% increments. When enabled, the default
humidification setpoint is 50%.
Frost Control
The Frost Control requires an outdoor sensor and a
humidifier. The Comfort Control calculates the possibility
of condensation or frost forming by using the outside
temperature and inside temperature to determine the
dewpoint. When the dewpoint could cause frost or
condensation, the humidification request will not be
honored.
SCHED
HOLD
CLOCK SCREEN
MORE
TUE
TUE
PM
FAN
AUTO
SYSTEM
HEAT
Wait
Inside
Set To
Humidity
THU
Hold Temperature
Until
CANCEL
