3.Furnace Staging - Carrier Infinity SYSTXCCITC-01SI Installation Instructions Manual

CFM/ton, but will vary if a 2- - stage outdoor unit is used. The MAX airflow is a
fixed 400 CFM/ton. No dehumidification airflow reduction is performed.
NOTE: For Geothermal Heat Pumps, the airflow labels have been changed from
EFF325 and EFF350 to EFF1 and EFF2, respectively. Nominal geothermal system
airflows for these settings tend to be different than the typical 325 and 350 CFM/ton
values.
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
S
Default = Comfort
d
HP Heat: Comfort, EFF325 (or EFF1), EFF350 (or EFF2), or Max
S
Default = Comfort
d
Dehumidify: Normal or High
S
Default = Normal
d
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 Infinity 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.
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