WARNING• If a malfunction occurs (burning smell, etc.,), turn off the power supply switch and contact your DAIKIN dealer.Continuing to operate while the chiller is malfunctioning can result in equipment damage, electrical shock or fire.■ Safety Device (Alarm indicator is bright when the device is activated)• The unit is installed with safety device to ensure safe operation. When a safety device is activated, the alarm indicator will become bright, in which case this part of function will be stopped and the other functions remain normal.We however recommend that you stop the chiller and investigate the cause even if a malfunction occurs in only one system. You should also investigate the cause in order to prevent it from developing into a serious problemSafety DeviceDevice CodePossible CauseCautions on Treatment1. Pressure relay (High-pressure protection)2. Phase imbalance protector(Phase inverse, phase loss or phase imbalance protection)3. Pressure relay (Low-pressure protection)4. Current sensor (Compressor overcurrent)5. Coil thermal switch (Compressor overheat protection)6. Discharge temp, sensor(Discharge overheat protection)7. Chilled water temp, sensor(Antifreeze protection)63H4763LCT49C26CH26WL(1) The cooling water does not circulate or the water level is too low.(2) The cooling water temp, is too high.(3) The condenser is scaled.(1) The power cable is connected wrong.(1) The expansion valve is closed for failure.(2) The cutoff valve at condenser outlet is closed.(3) The chilled water level is too low.(1) Same as high-pressure relay.(high pressure protection)(1) Same as high-pressure relay.(high pressure protection)(1) The unit is short on refrigerant due to leaking.(2) The cut-off valve at condenser outlet is closed.(3) The expansion valve is opened too low.(1) The chilled water flow is too low.(2) The temperature is set too low.• In event of the troubles on left side, the unit shall not restarted until 30 minutes after the trouble has occurred.• Frequent high-pressure alarm might cause compressor failure. Please wash the condenser and cooling tower at a soonest time.-• In event of the troubles on left side, the unit cannot be restarted. Please contact Daikin service division:Nationwide Toll-Free Call: 95105363(China)Huizhou Factorv ServiceCall:+86-752-3619406
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