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4-7-3. Content of alarm and setting
List of alarm and setting
Purpose
Chilled water
freeze protection
Crystallization
prevention
Protection of
generator
Motor protection
Others
*1 Chilled water temp. difference 1.0
Display
Chilled water temperature is too low.
Chilled water pump interlock failure
Few flow rate of chilled water
Cooling water temperature is too low.
Cooling water pump operation failure.
Refrigerant temperature is too low.
Cooling water pump interlock failure
Few flow rate of cooling water(option)
Generator's temperature is too high.
High concentration of absorbent
No.1 Absorbent pump is overloaded.
No.2 Absorbent pump is overloaded.
Refrigerant pump is overloaded.
Purge pump is overloaded.
Chilled water flow switch failure
Cooling cycle failure
Power failure (while operating)
o
o
C(1.8
F) or below for 30min. at 85% or above input.
Contents of alarm
4-11
Set point
o
o
2.5
C(36.5
F) or below
-
50% or below
o
o
24
C(75.2
F) or below
continues 30 minutes
-
o
o
2.0
C(35.6
F) or below
-
50% or below
o
o
105
C(221
F) or avove
2 times of 65.0%
or above
65.5% or above
Rated current
value or above
-
*1
More than 1 hour
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