Daikin Single Screw Chiller ZUW.C-B

Check at intervals as specified and replace when the component is abnormal and the replacing standard is met.

- Electric expansion valve(capacity control)

A) Power supply should meet requirements

According to all parameters on nameplate, please confirm voltage is within ±10% of nominal voltage,

frequency is within (50) ±2%Hz, and phase voltage unbalance is within ±2% of rated voltage.

B) Power on more than 8 hours before operation.

In order to start compressor smoothly, starter cabinet should be powered on more than 8 hours to energize oil heater to heat the oil.;

Check at intervals as specified and replace when the component is abnormal and the replacing standard is met.

- Electric expansion valve(capacity control)

Check at intervals as specified and replace when the component is abnormal and the replacing standard is met.

Filter (Water suction conditions) condition

Sign off on the chiller maintenance

a. Contact with other maintenance managers before maintenance.

b. Make sure that you familiar with safety precautions.

c. Please select “Local” on the HMI if you needn’t remote operation to avoid auto-running by remote signals.

d. Warning signs should be hung in a prominent position when the chiller is being maintained.

a. Check the chilled water state.

Change the polluted water in the system if the chilled water quality get worse.

Adjust to a correct value if the Ethylene glycol solution concentration reduces below the setting point.