Danfoss AK2-SC 255, Reference Manual, Page: 129 / 206

128 AK2-SC 255 Reference Manual RS.8D.M1.22
this is so, then a good setting for the low suction pressure alarm might be at the cut-
out for 10 to 15 minutes.
Types of suction
alarms, listed
The alarm types depend to some extent on the way rack configuration questions were
answered. Listing all the types of suction group alarms, they are:
Alarms Suspended
As explained above, when this alarm is enabled, it will occur whenever alarm suspen-
sion for the suction group is activated in the service screen (see chapter 5-2). There is
no time delay.
Phase Loss (if a phase loss sensor is configured)
A digital alarm that can be enabled to occur when the phase loss sensor is on for a
specified time period (1-9999 seconds, minutes, or hours).
Low Pressure (if a suction pressure sensor is configured)
An analog alarm, set for a pressure from -999.9 to 999.9 psi or bar and a time limit of
from 1 to 9999 seconds, minutes, or hours.
High Pressure (if a suction pressure sensor is configured)
An analog alarm, set for a pressure from -999.9 to 999.9 psi or bar and a time limit of
from 1 to 9999 seconds, minutes, or hours.
Low Temperature (if a suction temperature sensor is configured)
An analog alarm, set for a temperature from -999.9 to 999.9 psi or bar and a time limit
of from 1 to 9999 seconds, minutes, or hours.
High Temperature (if a suction temperature sensor is configured)
An analog alarm, set for a pressure from -999.9 to 999.9 psi or bar and a time limit of
from 1 to 9999 seconds, minutes, or hours.
High desuperheat (if a suction temperature sensor is configured)
An analog alarm, set for a pressure from -999.9 to 999.9 psi or bar and a time limit of
from 1 to 9999 seconds, minutes, or hours.
Configuring
Compressor Alarms
We will return now to the configuration screen for rack C alarms, and select Com-
pressors.
The first page of the compressor alarms screen appears as at right above. For a
multi-compressor rack there will be several pages of alarms. The alarm types depend