3.Furnace Staging; 4.Furnace Airflow Limits (Modulating Furnace Only) - Carrier SYSTXCCITN01-A Installation Instructions Manual

Default = Comfort
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HP Heat: Comfort, EFF325 (or EFF1), EFF350 (or EFF2), or Max
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Default = Comfort
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Dehumidify: Normal or High
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Default = Normal
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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 Infinityr 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
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Default = System
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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
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increase the minimum operating capacity of the furnace.
Default value is the furnace air flow for the lowest heat capacity.
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Max. modulating limits: Maximum CFM to run a modulating furnace. This
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will increase the maximum operating capacity of the furnace.
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