30
6.3.3.3.
Furnace Staging
The operation of this option will vary based on the furnace installed.
SYSTEM
setting will allow the Evolution
r
Zone Control to determine furnace staging.
FURNACE
setting will allow the furnace to determine 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 and modulating furnaces have
LOW
and
HIGH
selections
only.
S
Stages
: System, Low, Low--Med, Med, Med--High, or High
d
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.
S
Min. modulating limits:
Minimum CFM to run a modulating furnace. This will
increase the minimum operating capacity of the furnace.
d
Default value is the furnace air flow for the lowest heat capacity.
S
Max. modulating limits:
Maximum CFM to run a modulating furnace. This
will limit the maximum operating capacity of the furnace.
d
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
.