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Manual 26824
CPC-II Unit Replacement Procedure
Woodward
41
Make sure that drain isolation valves is open before opening supply
isolation valve located on the CPC-DX unit.
Overspeed /
Overpressure
Never open the supply line when drain line is closed on the CPC unit,
otherwise the control output pressure can increase suddenly and
cannot be controlled by the input setpoint. This could cause the
turbine to overspeed.
The drain isolation valve should always be open prior to opening the
supply line.
Unlock isolation valve (removing padlock) and turn to open position.
Figure 6-8. Isolation valve OPEN / CLOSED lever position