MD-11 Flight Crew Operations Manual
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Water and Waste -
Controls and Displays
Wat.30.5
1. Service Panel Switch
Push to turn power on/off to the service panel lights and EMPTY light.
2. DRAIN Handle (2)
Pull to open the tank drain.
3. Drain Manifold and Cap
The waste system is drained through this manifold. A double-door drain cap
protects the manifold.
4. EMPTY Light (2) - amber
Illuminates amber when waste tank is empty.
5. RINSE Fitting (2)
Rinse equipment is connected to the tank through the fitting.
6. MAINT Light - amber
Illuminates amber when maintenance is necessary on the waste system.
7. SERV Light - amber
Illuminates amber when waste tank is 60% full and needs servicing.
8. STATUS Lights - amber
Illuminates to indicate status as follows:
VAC SWITCH - Vacuum switches disagree.
ALT SWITCH - Altitude switches disagree.
BLWR - Blower is over temperature.
P SENSOR - Differential pressure level sensor failed.
SONIC SENSOR - Waste level sensor failed.
FULL - Waste tank is full.
9. IN SERV Light - amber
Illuminates amber when system is being serviced.
10. PANEL Light - amber
Illuminates amber when there is a fault with this STATUS panel.
11. WCU Light - amber
Illuminates amber to indicate a WCU fault.
October 02, 2006
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