25 232001260G(10)Step 2. Arrange the Outlet and Inlet tubing as follows. Insert the outlet tubing of chiller throughthe “Water in” slot opening.Step 3. Connect the outlet tubing from chiller to the “Water in” connector on machine.4.1.6 Adjustable Air NozzleThe Air nozzle can be adjusted to create different distances to the working piece for different airblowing effect to meet various application demands and prevent dust accumulating on the lens.NOZZLE ADJUSTMENT:1) ClockwiseNozzle moves closer to the material surface to have a direct and stronger air blowingforce on the material.2) Counter-clockwiseNozzle moves away from the material surface to for a weaker air blowing force on thematerial..3) Remove NozzleIf you do not need a strong air blow direct on the material, screw nozzle counter-clockwise to remove it and have an open air blow.The outlet tubing of chiller should beconnected to the inlet connector on thelaser machine.The inlet tubing of chiller should beconnected to the outlet connector onthe laser machine.Water out connectoron laser tubeWater in connector onlaser tube