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Honda FCX, Emergency Response Manual

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Honda FCX Emergency Response Manual Download Page 17

13

Emergency Procedures

Continued

4. Locate the red handle of the manual

hydrogen shut-off valve (it’s in front of
the tire in the right rear fenderwell).

5. Turn the handle one-quarter turn

clockwise to stop the flow of hydrogen.

Manual Hydrogen Shut-Off Valve

(Turn 1/4 turn clockwise to stop the

flow of hydrogen.)

Summary of Contents for FCX

Page 1: ...Emergency Response Guide Prepared for Fire Service Law Enforcement Emergency Medical and Professional Towing Personnel by American Honda Motor Co Inc Honda Fuel Cell Vehicle ...

Page 2: ......

Page 3: ...nual Hydrogen Shut Off Valve 6 Potential Hazards Flammable Fluid 7 Hydrogen Properties and Potential Hazards 7 Electric Shock Potential 8 Capacitor Electrolyte 8 Emergency Procedures Incidents Involving Fire 9 Submerged or Partially Submerged Vehicle 9 Damaged Vehicle 10 Best Method for Preventing Current Flow and Hydrogen Leakage 11 Second Best Method for Preventing Current Flow and Hydrogen Leak...

Page 4: ......

Page 5: ...apacitor Module Propulsion Motor Fuel Cell Box Hydrogen Lines Air Intake Units Fuel Cell Module Power Control Unit 12V Battery Radiators Radiators Air Intake Units Fuel Cell Module Capacitor Module Hydrogen Tanks Hydrogen Tanks 1 Locations of the high voltage cables are approximate See page 4 for information on how to identify these cables ...

Page 6: ...module which is housed inside a strong steel box under the passenger compartment floor This module contains many individual fuel cells that combine hydrogen from onboard tanks with oxygen from the air intake units to produce electricity The only by products of this process are heat and water the water is released through the exhaust pipe Hydrogen Tanks The hydrogen used by the fuel cell module is ...

Page 7: ...f all the motors However the air compressor motor may continue running for up to 10 seconds Power Control Unit The power control unit PCU is located under the hood directly under the two air intake units The PCU controls the generation and use of high voltage electrical power and contains high voltage components 12 Volt Battery A conventional 12 volt battery is located under the hood on the passen...

Page 8: ...ed inside a strong sealed protective box between the rear seat and the cargo area The module contains high voltage even when the fuel cell module and the key switch are turned off The entire unit is electrically insulated from the vehicle body High Voltage Cables Electrical energy comes from the fuel cell module and the capacitor module to the various electrical components through 21 high voltage ...

Page 9: ...control unit automatically shuts off the flow of electricity from the fuel cell module and the capacitor module In less than 1 second there is no electric current in the high voltage cables Hydrogen Tank Safety Valves Each hydrogen tank contains three internal safety valves One prevents any backflow while the tank is being refilled another shuts off the flow of hydrogen when signaled by the power ...

Page 10: ...etect any possible leak If a leak is detected the power control unit automatically stops the flow of hydrogen from the tanks Manual Hydrogen Shut Off Valve The FCX is equipped with a manual shut off valve that can be used to stop the flow of hydrogen from the tanks The valve is located inside the right rear wheelwell in front of the tire Its large red handle easily identifies it See page 11 13 or ...

Page 11: ...e when mixed with air hydrogen has a much higher and wider range of flammability Its explosive range is also much higher and wider as illustrated in the graph To limit the chance of hydrogen leakage the FCX has many built in safety features to help contain hydrogen detect a leak and automatically shut off the flow of gas if a leak is detected see pages 5 6 Since hydrogen is 14 times lighter than a...

Page 12: ...mpressor motor can occur only after one or more components are removed Contact with hot high voltage cables can occur only if the protective orange plastic covering is ripped open and someone deliberately contacts both the positive and negative wires All high voltage cables are clearly identifiable by their orange plastic covering Capacitor Electrolyte Small quantities of organic electrolyte are u...

Page 13: ...dard fire fighting procedures but keep away from the rear of the vehicle until the fire is completely out Remember that high temperatures or pressures can cause all hydrogen in the tanks to be released through the pressure relief tubing at the right rear of the vehicle see pages 5 and 6 and that hydrogen flames are invisible Submerged or Partially Submerged Vehicle Pull the vehicle out of the wate...

Page 14: ...he key and turn off the manual hydrogen shut off valve see page 11 Second best method for preventing current flow and hydrogen leakage Disconnect the 12 volt battery negative cable and the negative DC to DC converter cable then turn off the manual hydrogen shut off valve see page 12 Least desirable method for preventing current flow and hydrogen leakage Turn off the capacitor module main switch th...

Page 15: ...l take 3 minutes for the airbags and seat belt tensioners to depower Turning off the manual hydrogen shut off valve stops the hydrogen flow from the fuel tanks To use this method do this 1 Turn off the key switch and remove the key Removing the key prevents the car from being accidentally or inadvertently powered up 2 Locate the red handle of the manual hydrogen shut off valve it s in front of the...

Page 16: ...ors preventing high voltage from flowing into the cables It also cuts power to the airbags and the seat belt tensioners within 3 minutes and prevents the propulsion motor from being restarted Turning off the manual hydrogen shut off valve stops the hydrogen flow from the fuel tanks To use this method do this 1 Open the hood and locate the 12 volt battery on the passenger s side 2 Using a 10 mm wre...

Page 17: ...ndle of the manual hydrogen shut off valve it s in front of the tire in the right rear fenderwell 5 Turn the handle one quarter turn clockwise to stop the flow of hydrogen Manual Hydrogen Shut Off Valve Turn 1 4 turn clockwise to stop the flow of hydrogen ...

Page 18: ... the hood Turning off the capacitor module main switch prevents electric current from flowing into the high voltage cables from the capacitor module Turning off the manual hydrogen shut off valve stops the hydrogen flow from the fuel tanks Within 90 seconds the fuel cells will stop generating electricity and electric current will stop flowing into the high voltage cables To use this method do this...

Page 19: ...t the switch from inadvertently being flipped on 5 Locate the red handle of the manual hydrogen shut off valve it s in front of the tire in the right rear fenderwell 6 Turn the handle one quarter turn clockwise to stop the flow of hydrogen Manual Hydrogen Shut Off Valve Turn 1 4 turn clockwise to stop the flow of hydrogen Red Locking Cover ...

Page 20: ...equipment to remove occupants from a damaged vehicle be sure to stay within the cut zone as indicated on the illustration by the light blue and dark blue diagonal lines Do not cut into the undercarriage or into the area containing the capacitor module Cut Zone High Voltage Cables Fuel Cell Module Hydrogen Tanks Capacitor Module ...

Page 21: ...uck and then use the tie down points to secure it to the flat bed If a flat bed is not available wheel lift equipment may be used preferably with the front wheels lifted If the rear wheels must be raised be sure to first set the parking brake and shift the transmission to neutral With the front wheels rotating the propulsion motor generates electrical power To prevent over voltage problems the tow...

Page 22: ...s the towing hook hole on the driver s side of the front grille 3 Screw the towing hook firmly into the hole Using the Tie Downs Tie down points are provided on the inside of the side sills Remove the grommets before using these points Tie Down Points Towing Hook Hole ...

Page 23: ......

Page 24: ...Copyright 2003 American Honda Motor Co Inc Reorder Number Y0661 AXX 24924 0303 ...

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