
B–70115EN/03
4. INSTALLATION
82
Remove cooling water according to the procedure below.
(1)Open the cooling water inlet (IN) and outlet (OUT), and leave both
open. Cooling water will stop draining from the unit after about 10
minutes.
(2)Once the cooling water has stopped draining, connect a compressed
air hose to the cooling water inlet (IN). Check that the cooling water
outlet is open. Gradually supply compressed air, allowing the pressure
to build up to 0.1 to 0.2 MPa. Never apply full pressure suddenly.
(3)Continue to supply compressed air at this pressure for about 5 minutes.
Increase the compressed air pressure to 0.3 to 0.4 MPa, and supply air
until water inside the white water piping of the oscillator is completely
removed.
(4)When water is no longer output, set the compressed air pressure to 0.
When a drain valve is attached to the distributor unit (C4000A: Fig.
4.2.2), open the valve, and supply air according to the same procedure
as (2) and (3). When water is no longer output, set the compressed air
pressure to 0, then close the valve.
4.2.2
Removing Cooling
Water