1. Turn the power supply switch ON.• The unit comes with a crank case heater. To ensure the compressor starts smoothly, leave this switch in the ON position during long periods of use, or otherwise, activate power at least 6 hours before starting the unit.2. Fill the system with water.• If the system has a cooling tower, make sure the gate valve regulating water flow is open before starting up the tower and the condenser water pump.• Also with wells, make sure the gate valve regulating water flow is open before starting condenser water pump.3. Set water circulating.• Purge the system.To purge the system, open the air purge plug on the water chilling unit. When the unit is filled with water, close the plug.• Open the gate valve regulating water flow before starting the chilled water pump.4. Open all the valves on the refrigerant piping.
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