Danfoss AK2-SC 255, Reference Manual, Page: 89 / 206

88 AK2-SC 255 Reference Manual RS.8D.M1.22
is on.
Economizer: Economizer control will be used, based
on either humidity or enthalpy.
Schedule: The air damper will be operated according
to a schedule or schedules (entered on the next page).
CO2 Ctrl: The air damper will be operated based on
the CO2 level in the HVAC unit’s zone.
Ambient temp lockout [appears when any control method except economizer
is used] (List box: Yes, No) Whether or not the air
damper is to be locked out based on ambient tempera-
ture.
No air damper below [appears when any control method except economizer
is used and question above is answered Yes](0.0 to
100.0) The air damper will be locked out below this
temperature.
Control economizer on (List box:) (appears only if economizer control is
selected)
Humidity: The air damper will be controlled based on
humidity.
Enthalpy: The air damper will be controlled based on
calculated enthalpy.
Humidity sensor to use (List box:)
Average: Enthalpy or humidity control will be based
on the average of two zone humidity sensors.
High: Enthalpy or humidity control will be based on
the highest of two humidity sensors.
Zone 1(etc.): (each zone humidty sensor will be
available as a choice in the list) Enthalpy or humidity
control will be based on the single selected humidity
sensor.
Lockout if outside above (0.0 to 100.0) The air damper will be locked out (shut)
if the outside temperature is above this setting.
Enthalpy differential (-99.9 to 99.9) In enthalpy control, when outside
enthalpy is less than inside enthalpy by this differential,
the damper will be allowed to open.
Use CO2 override (List box: Yes, No) Whether or not damper control is
to be overriden based on CO2 content of inside air.
Target CO2 amount (0 to 2000) When CO2 override is enabled, the CO2
level at which the damper is allowed open to bring in
fresh air.
Damper Controlled by (List box:)
Variable Out: The damper is modulated by the RTCs
analog output (variable output).
Relay Output: The damper is opened by a digital
output (relay output).
Min Damper Position (0.0 to 100.0) When a variable out is controlling, the
minimum percentage of damper opening allowed.
Max Damper Position (0.0 to 100.0) When a variable out is controlling, the
maximum percentage of damper opening allowed.
Variable Output range (List box:) When a variable out is controlling, the