3-8-3. Content of alarm and setting point
Table 3-4 List of alarm and setting point in cooling operation
Purpose
Display
Contents of alarm
Setting point
Protection of
Chilled water temperature is too low.
2.5
℃
or below
Chilled water
Chilled water pump interlock has failure.
-
system
Few flow rate of chilled water
50% or below
Cooling water temperature is too low.
24
℃
or below
after 30 minutes
Prevention of
Cooling water pump interlock has failure.
-
Crystallization
Few flow rate of cooling water
50% or below
Generator’s
95
℃
temperature is too high.
Protection of
High concentration of absorbent
65.0% or above
generator
2 times
65.5% or above
Protection of Motor
Absorbent pump has overload.
Rated current
Refrigerant pump has overload.
value or above
Purge pump has overload.
Others
Ventilation fan interlock etc. have failure.
-
Capacity is too low.
-
Cooling tower fan has overload.
-
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