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4-7-3. Content of alarm and setting
List of alarm and setting
Purpose
Chilled water
Chilled water temperature is too low.
freeze protection
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.
Crystallization
Cooling water pump interlock failure
prevention
Few flow rate of cooling water(option)
Generator's temperature is too high.
Protection of
High concentration of absorbent
generator
Motor protection
No.1 Absorbent pump is overloaded.
No.2 Absorbent pump is overloaded.
Refrigerant pump is overloaded.
Purge pump is overloaded.
Others
Chilled water flow switch failure
Cooling cycle failure
Power failure (while operating)
Hot water high temperature
*1 Chilled water temp. difference 1.0
*2 This alarm will not occur if "High temperature hot water" option is selected.
Display
o
o
C(1.8
F) or below for 30min. at 85% or above input.
4-12
Set point
o
o
2.5
C(36.5
F) or below
-
50% or below
o
o
21
C(69.8
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
o
o
98
C(208
F) or avove *2
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