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Table 5. Thermostat Parameters
Parameter
(In alphabetical
order)
Description
Screen Saver
Options are off, weather, power save and logo. Default is off.
NOTE: When the user performs a picture upload from the settings
> display > screen saver page, then on this screen it will
only indicate that logo was selected. If no picture has been
uploaded, then the Lennox logo would be displayed.
Sensor
Temperature
Difference Limit
This setting determines the temperature differential limit between
the smart room sensor and the S40 thermostat. Setting range is 2 to
10ºF, and can be incremented 1 degree at a time. Default is 7ºF.
The system compares the smart room sensor and thermostat
temperature difference which by default is 7ºF. If the temperature
difference between the smart room and thermostat temperatures is
greater than or less than 7ºF differential then the system determines
there is a potential issue with smart room sensor temperature.
The system will then raise a notication to the homeowner under
the specic smart room sensor with the issue. The system will only
use the thermostat temperature reading and ignore the smart room
sensor reading until the issue is resolved.
The notication displayed to the homeowner is “Device is not
participating as temperature readings are abnormally high/low”.
Severe Weather Protection
(High and low temperature notication.)
Options are enabled or disabled. Default is disabled. When enabled either the heat or freezing
alert temperature setting will automatically generate a email notication to the homeowner that
the applicable condition exist and homeowner interaction is required.
NOTE: Notication is dependent on the thermostat having an active Wi-Fi connection and the
user account has been setup and includes a valid email address.
Heat Alert
Temperature
This will notify the homeowner when the indoor temperature reaches
the setting dened for this parameter.
Range is 80°F to 100°F (26.67 to 37.78°C) with a factory default of
90°F (32.22°C). Increments adjusted by 1.0°F (0.56°C).
Freezing Alert
Temperature
This will notify the homeowner when the indoor temperature reaches
the setting dened for this parameter.
Range is 30°F to 50°F (-1.11 to 10.0°C) with a factory default of 40°F
4.4°C). Increments adjusted by 1.0°F (0.56°C).
Single Setpoint Mode (SSP)
(Non-Zoning System Only)
On the user screens this is referred to as Perfect Temp (Temperature). Options are enabled
or disabled. Default is disabled. The Single Set Point (SSP) algorithm allows the user the set
only one temperature set point value rather than one value for heating and a different value for
cooling. When zoning is present, the following SSP settings are not available. When enabled
the following parameters are automatically congured for optimal settings. This setting is also
available by going to menu > settings > heat & cool > perfect temperature and toggle the
feature ON or OFF.
Table 5. Thermostat Parameters
Parameter
(In alphabetical
order)
Description
SSP Heating Cancel
Coast Counter
Increment Slope
Range is 0 to 0.75°F (0.0 to 0.42°C). Default is 0.25°F (14°C).
Adjustments are in increments of 0.125°F (0.07°C).
SSP Heating Cancel
Coast Counter
Decrement Slope
Range is 0.25 to 2°F (0.14 to 1.11°C). Default is 0.5°F (0.28°C).
Adjustments are in increments of 0.125°F (0.07°C).
SSP Cooling Cancel
Coast Counter
Increment Slope
Range is -0.75 to 0.0°F (-0.42 to 0.0°C). Default is -0.25°F (-0.14°C).
Adjustments are in increments of 0.125°F (0.07°C).
SSP Cooling Cancel
Coast Counter
Decrement Slope
Range is -2.0 to -0.25°F (-1.11 to -0.14°C). Default is -0.5°F
(-0.28°C). Adjustments are in increments of 0.125°F (0.07°C).
SSP Heating
Lockout Outdoor
Temp
When the outdoor temperature is above this setting, heating is not
allowed if single set point is running.
Range is 50 to 80°F (10.0 to 26.67°C). Default is 70°F (21.11°C).
Adjustments are in increments of 1.0°F (0.56°C).
SSP Cooling
Lockout Outdoor
Temp
When the outdoor temperature is below this setting, cooling is not
allowed if single set point is running.
Range is 30 to 60°F (-1.11 to 15.56°C). Default is 40°F (4.44°C).
Adjustments are in increments of 1.0°F.
Smart Alert
Enable
Default is OFF. Smart Alert Enable function when set to ON monitors:
• Thermostat set point setting
• Temperature reading
• Determine whether the system moving towards the desired
temperature setting or is unable to achieve the desire temperature
setting.
• Uses local climate design temperatures
• System run times.
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