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The dehumidify airflow, when set to NORMAL, the airflow is allowed to adjust to a minimum
to satisfy the dehumidification call. When set to HIGH, the minimum airflow during the
dehumidify mode is increased to reduce duct and register sweating. Also the airflow increases
minimum airflow during normal cooling operation to help reduce duct sweating.
After the selections are made, touch SAVE.
• Cool: Quiet, Comfort, EFF325 (or EFF1), EFF350 (or EFF2), or Max. Default = Comfort
• HP Heat: Comfort, EFF325 (or EFF1), EFF350 (or EFF2), or Max. Default = Comfort
• Dehumidify: Normal or High. Default = Normal
6.3.3.3. Furnace Staging
This option controls the staging of the furnace and selects the minimum amount of time low
stage must operate before high stage is activated. SYSTEM setting will allow the Evolution
Zone Control to determine furnace staging. LOW will only run the low stage of furnace heat.
LOW-MED will run the low and medium stages (2 stages of heat). MED will only run the
medium stage of heat. MED-HIGH will run the medium and high stages (2 stages of heat).
HIGH will only run the high stage of furnace heat.
NOTE: Two-stage furnace has LOW and HIGH selections only.
• Stages: System, Low, Low-Med, Med, Med-High, or High. Default = System
6.3.3.4. Furnace Airflow Limits (modulating furnace only)
The following settings allow the installer to restrict the furnace within certain minimum and
maximum airflows. These airflows are converted to capacities. The Min and Max limits are
determined by the equipment size. These settings are not the same as the zoning airflow limits.
• Min. modulating limits: Minimum CFM to run a modulating furnace. This will increase the
minimum operating capacity of the furnace. Default value is the furnace air flow for the
lowest heat capacity.
• Max. modulating limits: Maximum CFM to run a modulating furnace. This will increase
the maximum operating capacity of the furnace. Default value is the furnace air flow for the
highest heat capacity
6.3.3.5. Furnace Off Delay
This option denotes the amount of time the blower will continue to run after heating has shut
off. After the selection is made, touch SAVE.
• Furnace Off Delay: 90, 120, 150 or 180 seconds. Default = 120 seconds
6.3.3.6. Altitude
For gas de-rating, this setting will adjust the furnace's airflow to compensate for altitude.
Altitude adjustment is not available with older furnaces. Please see furnace instructions for
further details. After the selection is made, touch SAVE.
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