34
2 - Chilled-water temperature is high.
Vacuum
problem
Generating
hydrogen gas
60%
Air leakage
30%
Insufficient
air purging.
30%
Chilled water
problem
Chilled-water flow rate is too high.
Cooling water
problem
Flow rate is
inadequate. 30%
Cooling water
temp. is too high.
50%
Solution
problem
Insufficient
absorbent flow
rate.
30%
Solution flow rate is not
adjusted properly.
Refrigerant
contamination
25%
APPENDIX 1 - TROUBLESHOOTING FLOWCHART - CONT.
20%
Partition plate in water box is removed.
Absorber and condenser tubes are fouled.
Wrong inverter setting.
Check valve malfunctions.
Wrong damper adjustment.
Condensed refrigerant pipe connected between the low temperature
generator and condenser is clogged.
Heat transfer tubes in high/low temperature heat exchangers leak.
Heat exchanger is clogged with foreign material.
Insufficient refrigerant amount.
5%
Insufficient octyl alcohol.
10%
Cooling water entering temperature is too low.
Refrigerant blow-down is needed.
Heavy foaming condition in high temperature generator due to
absorbent contamination with foreign material.
Ambient temperature and/or humidity are too high.
Cooling water control valve malfunctions.
Cooling tower water spray malfunctions.
Cooling tower fan malfunctions.
Cooling tower fan belt is broken.
Cooling water temperature control thermostat malfunctions.
Cooling water pump control malfunctions.
Strainer is clogged.
Insufficient feed water.
Air in the cooling water line.
Insufficient inhibitor.
Pd cell is defective.
Pd cell heater is defective.
