Condenser Alarms - Danfoss AK2-SC 255 Reference Manual

Configuration of

condenser alarms

.
RS.8D.M1.22
The fourth selection on the rack alarm configuration menu is Condensers. Before
configuring condenser alarms, if you are implementing condenser control, finish
answering the condenser configuration questions. Depending on the type of condenser
configuration, the alarms presented will differ.
For the most part, the alarms presented in this section will be similar to those already
covered in the preceding sections on suction and compressor alarms. We have
configured condenser control, including variable speed, so as to describe almost all the
alarm types.
After selecting Condensers from the rack alarms menu (shown once again below
left) you will be presented with the first page of a list of alarms for rack C's con-
denser, as at right below.
We have shown above only the first page of alarms. Depending on the number of
fans, there may be additional condenser fan failure alarms on a second page.
High Pressure (discharge pressure sensor)
This same alarm appears on the compressor alarms page, and you may have set it up
already. It is 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.
Hi Invert. resets (if variable speed is configured)
A cycle digital alarm, with the trip level a number of cycles (0-9) in a specified time
period (1 to 9999 seconds, minutes, or hours).
Inverter failure (if variable speed is configured and the inverter bypass is
monitored)
A digital alarm that can be enabled to occur when the inverter is in bypass for a
specified time period (0-9999 seconds, minutes, or hours).
Cond fan failure
A digital alarm that can be enabled to occur when a condenser fan is called to run and
fails to show proof (digital monitor fails to read ON) within the time period specified in
the alarm (1-9999 seconds, minutes, or hours).
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