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