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The Energy Savings mode is activated by pressing the
Energy Savings key "$" on the control's keypad. Pressing
the Energy Savings key "$" again deactivates the Energy
Savings mode. Pressing and holding the Energy Savings
key "$" provides quick access to the setpoint offset for both
heating and cooling.
Filter Reminder
"FILTER" will automatically flash to remind the
homeowner that its time to change the filter once the
preset time has expired. Pressing the "Filter/OD" keypad
button resets the internal clock timer. Once the timer has
been reset, the number of days remaining until the next
filter change can easily be determined by simply pressing
the "Filter/OD" keypad button once more. Pressing and
holding the "Filter/OD" keypad button provides quick setup
access to the filter timer value.
Keypad Lock
Locking the control's keypad can help prevent unwanted
tampering or changing the thermostat settings by pressing
the controls UP and DOWN arrow keypad buttons at the
same time and holding for 2 seconds. "Keypad Locked"
will be displayed on the LCD. Repeating this combination
unlocks the keypad and the "Keypad Locked" will
disappear.
Business Card Drawer
The drawer attached to the mounting base of the control is
designed to provide a convenient location for the home
owner to locate their local servicer. A standard business
card can be folded and inserted into the slot on the drawer
to remind the User whom to call when service is required.
Manual Test Mode
The built in Manual Test Mode allows the servicer to
quickly and easily test the control's individual control
outputs and makes diagnostic procedures a snap. Set the
Mode to OFF, set the fan to AUTO, and press the MODE
and DOWN arrow keypad buttons at the same time and
hold for 2 seconds. See Table 1, steps 70-78 for details.
Default Factory Settings
The thermostat is shipped with a set of factory default
settings. The factory default settings can be restored at
any time using the control configuration menu. (See Table
3, step 99).
Service Indicator
The "SERVICE" indicator automatically flashes when an
internal fault or error has been detected by the Comfort
Control.
Minimum Off Time Delay Override
Minimum Off time delays can be overridden for the current
cycle by pressing the Mode and Down arrow keys at the
same time for approximately 2 seconds. It may be
necessary to lower the indoor setpoint for cooling or
increase the setpoint for heating to activate the system.
Minimum off time delays will be enforced on the next cycle.
Pub. No. 11-HD03D3-3
Installer's Guide
Wait Indicator
"Waiting" will illuminate when the indoor setpoint is
moved in the direction of calling for additional system
capacity. "Waiting" indicates system time delays are being
enforced and that the control is adjusting to the new
settings.
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 between + 5 and - 5 degrees in 1/2 degree
increments. Factory default is 0. The adjusted value will be
used as the temperature for both display and control
action. For example, if 2 is selected, 72 degrees actual will
read 74 degrees.
Calibrate Outdoor Temperature
This option allows calibration of the outdoor temperature
sensor. The selected number is number of degrees, plus or
minus, which will be added to actual temperature. The
number can range between + 5 and - 5 degrees in 1/2 degree
increments. Factory default is 0. This adjusted value will
be used as the temperature for both display and control
action. For example, if 2 is selected, 72 degrees actual will
read 74 degrees.
Outdoor Temperature Sensor
With the outdoor sensor installed and enabled, outdoor
temperature can be displayed on the Comfort Controls
display by simply pressing the Filter/OD button. Also, the
outdoor sensor is required for the following control
features: Cooling Efficiency Booster, Heat Pump Restricted
Mode, Heating Aggressive Recovery, Auxiliary Heat
Lockout, and Defrost Heater Balance Point control.
Optional Remote Indoor Temperature Sensor
Accessory
With the remote indoor temperature sensor installed and
enabled, the Comfort Control can display and control
indoor temperature at a more optimum location without
moving the mounting location of the Comfort Control. If
the remote indoor temperature sensor fails, control reverts
to the on-board temperature sensor. Therefore, the
Comfort Control must be installed in the conditioned
space.
Calibrate Remote Indoor Temperature
This option allows calibration of the remote indoor
temperature sensor. Otherwise this feature operates the
same as for calibration of the indoor (on-board)
temperature sensor.
Optional Humidistat Accessory
The optional humidistat connects to subbase terminals H1
and H2 and opens on a rise in humidity. The Comfort
Control provides dehumidification only during cooling mode
operation as described below.
•
Variable Speed Dehumidification – BK
Enabled
Extends the compressor runtime by two minutes
to remove additional moisture from the indoor air.
Defeats the blower turn-off delay.
15
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