Danfoss AK2-SC 255 User Manual

RS.8D.M1.22 AK2-SC 255 Reference Manual 89
minimum percentage of damper opening allowed.
0-5 Volts: Sets the RTC board’s analog output for an
output over the range 0-5 volts.
0-10 Volts: Sets the RTC board’s analog output for
an output over the range 0-10 volts.
Reaction Time (1 to 99) This setting, together with the next, deter-
mines the sensitivity of variable output control. It
should be adjusted only by a Danfoss-trained techni-
cian.
Algorithm Interval (1 to 15) This setting, together with the previous one,
determines the sensitivity of variable output control. It
should be adjusted only by a Danfoss-trained techni-
cian.
RTC schedules The RTC schedules screen(s) allow entry of schedules for operation of the rooftop.
RTC alarm
configuration Alarms can be for any of the following, in accordance with the Appendix on alarms.
Sensor discard
Power failure
Filter (elapsed)
Filter (runtime)
HVAC smoke for this unit’s smoke detector
HVAC fire for this unit’s fire detector
Sensor alarms can be set for any of the zone or humidity sensors, for any relay output,
or for any digital input (on-off input).
RTC I/O Points
configuration These are configured in a manner unlike the Board & Points entries for other devices.
Select RTC I/O Points from the RTC configuration menu and the first screen, Relay
Outputs, appears.
Notice the set of icons across the bottom of the screen. These will allow you to reach

Danfoss AK2-SC 255 Specifications

General

Brand	Danfoss
Model	AK2-SC 255
Category	Controller
Language	English