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Appendix 1 - Troubleshooting FLOWCHART - Cont.
5 - Water alarm
Electric
system
Electrical parts
defective
60%
Microprocessor
Flow switch
Temperature sensor
Auxiliary relay in chiller control panel
Interlock
40%
Water system
Temperature
40%
Check wiring and electric parts of interlock wiring
Leaving chilled water
temperature too
low
70%
Temperature control function
does not work properly.
Wrong operating order.
Holding water quantity in the chiller
is too low.
Entering cooling
water temperature
too low
20%
Ambient temperature is too low.
Leaving hot water
temperature too low
10%
Temperature control function
does not work properly.
Cooling water temp. control malfunctions.
Wrong operating order.
Holding water quantity in the chiller
is too low.
Flow rate
60%
Check chilled-water
flow switch
Air in water system?
Strainer in water system is clogged?.
Valves in water system opened properly?
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