S&A CW-5000 Series User Manual Download

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CW-5000/5200 Series Industrial Chiller

Malfunction Testing and Repair Handbook

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Summary of Contents for CW-5000 Series

Page 1: ...CW 5000 5200 Series Industrial Chiller Malfunction Testing and Repair Handbook...

Page 2: ...00 Series Temperature Controller T 503 alarm P6 P10 3 1Alarm code E1 ultrahigh room temperature 3 2Alarm code E2 ultrahigh water temperature 3 3Alarm code E3 ultralow room temperature 3 4 Alarm code E...

Page 3: ...lockage or bending etc Solution Clean the pipes to remove blockage or replace the bending or damage pipes The Status II Water circle running normal the alarm continuing red light flash Reason 1 Flow s...

Page 4: ...lash it can be judged as the flow switch failure Solution Replace the Hall flow switch 3 2 If the alarm continues please reconnect these four wires back to the flow switch to conduct next testing 4 To...

Page 5: ...voltage of switching mode power supplies with testing tools Standard working voltage of switching mode power supplies is DC24V for CW 5000 series machine 2 1 If output voltage of switching mode power...

Page 6: ...4 Solution Take away the shell of DC pump and check if there is choking or wore in rotor If the alarm continues it will need to replace DC pump...

Page 7: ...mode power supplies is DC24V for CW 5000 series machine 2 1 If output voltage of switching mode power supplies lower than DC18V the life and flow of pump will affect due to low voltage it can be judg...

Page 8: ...50 cm away 2 The dust gauze is extremely dirty Solution Clear the dust gauze regularly 3 Dust accumulation heavily on the aluminum fin of condenser inside the chiller Solution Clear dust on condenser...

Page 9: ...valve at the back of thermostat with testing tools If there is voltage output it can be judged as thermostat failure if no voltage output then continue next testing 3 Under refrigeration status the co...

Page 10: ...e the condenser or evaporator internal pipe line leakage refrigerant Solution Have some air conditioning maintenance people to locate the leakage parts refill the holes of leakage and then fill the re...

Page 11: ...first use when the ambient temperature is low such as winter and autumn season just add certain warm water the temperature will restore to working temperature Alarm code E4 room temperature sensor fa...

Page 12: ...re Testing method 1 Look for the terminals of room temperature sensor and water temperature sensor as picture swap and connect the room temperature sensor and water temperature sensor to the temperatu...

Page 13: ...ck if the fuse is fused as picture If fused replace the standby insurance tube 2 Check AC220V voltage depend upon the mode of machine of two groups of wire on the Switching Mode Power Supplies with Un...

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