User's Manual

4. Setting Up for Initial Operation
EAC-2100 Manual: (Draft, 02/01) Page 4-18
4.6.8 Programming Alarms and Thresholds (Continued)
2. Type D <CR> to set the fan activation point (the internal temperature that
causes the cabinet heat exchanger to be turned on).
The 60
o
C default setting is adequate for most installations. Lower the
threshold to 50
o
C if the DCCH channel transmitter output is increased to
its maximum (45W) output level.
3. Type H <CR> to access the +28 Volt Supply - Low Alarm Point
parameter.
Loss of ac power will cause the EAC-2100 to run on power from the
battery plant (if installed). The battery voltage will drop to the low alarm
point after a period of time, causing an alarm.
The default value (23.0 V) will be adequate for most installations. If an
external battery plant is used, the low alarm point may be adjusted upward
(e.g., to 25−26 V) if desired to provide an immediate alarm in the event of
the loss of ac power.