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aircraft.
HYDRAULIC MOTOR DRIVEN GENERATOR (HMDG) (OPTIONAL)
The optional HMDG system provides a non-time limited source of electrical power in the event total generated power is
lost. The HMDG is powered by the left hydraulic system. It is rated for 65 amp and consists of a hydraulic motor that drives
a DC generator. An ELEC HYD GEN ON (S) message will be displayed on the EICAS when the system is activated.
The HMDG is operated by the HYD GEN switch on the ELECTRICAL cockpit control panel.
CIRCUIT BREAKER PANELS
Two circuit breaker panels are located in the cockpit and are fed by the distribution buses of the secondary power centers.
They distribute power to the loads which require pilot access to the associated circuit breaker.
Two other circuit breaker panels are located in the left and right equipment racks. They are also fed by the distribution buses
of the secondary power centers.
COCKPIT FLOOR HEATERS
Four cockpit floor heaters are installed on the flight compartment floor, one on each side of the two control columns. Each
is covered by a scuff plate to prevent damage to the heat strips. There are no pilot operated controls, as a temperature limiting
circuit keeps the temperature between 68 ° F (20 ° C) and 95 ° F (35 °C). Also an internal thermal switch prevents the
floor heaters from an overheat condition.
The pilot’s floor heater is connected to the left equipment rack circuit breaker panel, and the copilot’s floor heater is connected
to the right equipment rack circuit breaker panel.
ELECTRICAL
May 06/2005 Flight Crew Operating Manual Volume 2
REV 2 CSP 100-6 07-01-07
CB1 PILOT CIRCUIT BREAKER PANEL (TYPICAL)
A
C
B
D
E
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
CTRL PWR CH A R CH A L CH A CTRL 1 CTRL 2
FADEC L TR
FIRE ENGINE
DET
FUEL
L PUMP
NAV 1 DME 1 GPS 1 CDU 1 XPDR 1 TCAS
NAVIGATION
AVIONICS
PRI
APU
L FGP/
L IAPS SERVOS
RIU 1B/
COM 1 HF 1 AURAL RIU 1A
COMMUNICATION AUTO FLIGHT
INBD
BRAKES
WOW A/
RET/EXT
NWS
PWR 1
R DC
L IND L SOV PUMP
HYDRAULIC LDG GEAR
L PFD L DCP L MFD
ATT
HDG 1
AIR
DATA 1
DISPLAYS
INDICATING/RECORDING
L BLEED
VALVES
PRESS 1
/PACK
ENVIRONMENTAL
DCU A RDC A CTRL 1 L PWR 1 R PWR 2
ANNUNCIATOR
L PITOT TAT VANE CASE CTRL PWR L ENG
INDICATING/RECORDING
ANTI ICE
L AOA L WINDSHIELD
3 3 3 3 3 5 3 25 5 15 15 7.5 7.5
3 7.5 3 3 3 7.5 7.5 5 3 3 7.5 3 5 5
3 3 10 3 10 3 3 0.5 5 5 5 5
5 5 3 5 5 3 5 3
20 5 15 10 7.5 15 5 0.5 5 5
L WING
BLD LK
L ICE
DET
L STBY
STATIC
L PROBE
CTRL
WOW
B
3
CFO0106002_006
5 3 0.5
3 5
WX
RAD
ALT
L AUDIO
PWR 1
CVR IND DC PUMP
AUX ALT LIM/
ECS X VLV
PWR2
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
A
C
B
D
E
TRIM/
L PWR RUD LIM
SPOILER
CTRL 1
STALL FLAP PRI STAB
FLIGHT CONTROLS
L SHKR PUSHER L IND CTRL
ELECTRICAL
Volume 2 Flight Crew Operating Manual May 06/2005
07-01-08 CSP 100-6 REV 2
ELECTRICAL SYSTEM (Cont)
CB2 COPILOT CIRCUIT BREAKER PANEL (TYPICAL)
A
C
B
D
E
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1
CTRL 2 CTRL 1 L CH B R CH B CH B PWR CTRL
R TR FADEC
ENGINE FIRE
DET
FUEL
R PUMP
TAWS XPDR 2 CDU 2 GPS 2 DME 2 NAV 2
NAVIGATION
AVIONICS
R SHKR R PWR
SPOILER
CTRL 2 SEC
FLAP STALL
FLIGHT CONTROLS APU
R FGP/
SERVOS R IAPS
RIU 2B/
AURAL RIU 1A HF 2 COM 2
AUTO FLIGHT COMMUNICATION
OUT BD
BRAKES
WOW
A/RET
NWS
PWR 2
L DC
PUMP PTU R SOV R IND
LDG GEAR HYDRAULIC DISPLAYS
INDICATING/RECORDING
FDR L PWR 2 R PWR 1 CTRL 2 RDC B DCU B
ANNUNCIATOR
EMER DOME
LIGHTS
R ENG
R WING
BLD LK PWR CTRL
R ICE
DET CASE VANE
R STBY
STATIC
STBY
PITOT R PITOT
R PROBE
CTRL
INDICATING/RECORDING
ANTI ICE
R WINDSHIELD R AOA
CFO0106002_005
7.5 7.5 15 15 5 25 3 3 3 3
3 5 3 3 5 7.5 5 3 3 3 7.5 3
5 5 5 5 0.5 3 3 3
3 5 3 3 5 5 3 5 5
5 3 5 3 0.5 5 15 7.5 10 5 15 20 3
3 5
SEC STAB
TRIM/
RUD LIM
AIL
TRIM
RUD
TRIM
R IND/
CTRL
R AUDIO
PWR 1
3
STBY INST
BATT TEST
STBY INST
/BATT R MFD R DCP R PFD
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