Humidify + Dehumidify Settings - Lennox S40 User Manual

» Climate IQ (Auto) - Automatically adjusts system run-time based on a
combination of dehumidification set point and local weather conditions
obtained from the Internet. May over cool your home to achieve the
desired dehumidification set point.
» Both overcooling and dehumidification set point slider adjustment tools
are available for both Max and Climate IQ (Auto). The overcooling
adjustment slider tool limits overcooling between 0ºF to 4ºF.

Humidify + Dehumidify Settings

When this option is selected, a combination of both humidification and
dehumidification settings are available.
When dew point is set to OFF. Then a dual purpose slider adjustment tool will
appear. This tool allows the homeowner to adjust the set point percentage for
both humidification (left slider) and dehumidification (right slider). Range is
15% to 60% humidity.
Table 3. Humidity Control Modes of Operations
Setting
Mode
These thermostat modes allow the homeowner
to control the relative humidity (RH) between
15% and 45%.
The following conditions must be met for either
mode to operate:
Additionally, the NORMAL mode requires that
heat demand exists.
humidification set−point
15%
Description
• Humidification mode has been enabled
• Unit is in HEAT mode
• Humidification demand exists
40%
45%
Table 3. Humidity Control Modes of Operations
Setting
Mode
This setting is recommended when the air
outside is not too humid and the outdoor unit is
either staged or variable capacity.
• Staged Outdoor Unit: This setting is
• Variable Capacity Outdoor Unit:
NOTE: Discharge air temperature sensor
This feature is applicable only to Lennox
communicating thermostats with either Lennox
communicating staged or variable capacity
outdoor units only. This setting automatically
adjusts both indoor fan speed and cooling power
based on local climate conditions using Climate
IQ
below the set temperature.
The below adjustment tools are only available with either Max or
Climate IQ setting selected.
overcooling
0°F
0°F
34
Description
recommended when the outdoor air is
excessively humid. This setting may cool the
home below the set temperature in order to
remove excessive indoor humidity.
Recommend when the outdoor air is
excessively humid. This setting adjusts
cooling based on installed duct sensor data.
This setting may cool the home below the set
temperature.
(catalog number 88K38) is required.
technology. This setting may cool the home
®
2°F
4°F