AC Panel Switches Flashcards
Equip Cooling
AUTO
Auto controls equipment cooling mode.
Equip Cooling
OVRD
A. Extinguishes both cooling fans
B. Override Valve Open
C. Forward Cargo Heat valve closed.
D. OVRD light illuminated
Equip Cooling
OVRD
(Amber)
Equipment cooling override valve open.
Gasper Switch
ON
Operates Gasper Fan
Gasper Switch
OFF / Blanked
Shuts off Gasper Fan
Recirc Fans Upper Lower
ON
Automatically operates associated recirculation fans.
FLT DECK TEMP Control
AUTO
Automatically controls temperature for flightdeck.
FLT DECK TEMP Control
C/W
Sets desired temperature between 65 and 85 F. (18/29 C)
FLT DECK TEMP Control
MAN
Provides Manual control of flightdeck trim air valve.
Turning to C drives trim valve colder.
Turning to W drives trim valve warmer
Cabin Temp Control
C/W
Sets cabin master reference temp between 65 and 85 F. (18/29 C )
AIR COND RESET
- Resets any closed pack flow control valves or trim air valves.
- Attempt to reset failed recirculation fan.
- Reset Fault Protection.
L/R Pack Switches
Auto
Automatically controls pack
L/R Pack Switches
Off (Blank)
Closes pack flow control valve
L/R Pack Switches
Off (Amber)
1.Pack flow valve failed closed
2.Pack High Temperature occurred
3.Bleed air pressure inadequate.
4. R Pack valve closed during APU to Pack takeoff procedure.
5. Pack switch pushed off.
L/R Trim Air Switches
ON
Opens Trim Air Valve
L/R Trim Air Switches
Fault
1.Trim air valve failed closed.
2.Trim air valve closed due to zone supply duct overheat.
3.Trim Air Switch off.
