Table of Contents
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OPERATION & MAINTENANCE MANUAL
FOR
NFI 40FT CNG BUSES AT
BC TRANSIT
(SR2033, SR2087 & SR2156)
Manual No: 181922
Revision B: Oct 25, 2017
PROPRIETARY NOTICE
THIS DOCUMENT IS THE PROPERTY OF UTC AEROSPACE SYSTEMS. YOU MAY NOT POSSESS, USE, COPY OR DISCLOSE THIS
DOCUMENT OR ANY INFORMATION IN IT, FOR ANY PURPOSE, INCLUDING WITHOUT LIMITATION, TO DESIGN, MANUFACTURE OR
REPAIR PARTS, OR OBTAIN ANY GOVERNMENT APPROVAL TO DO SO, WITHOUT UTC AEROSPCE SYSTEMS' EXPRESS WRITTEN
PERMISSION. NEITHER RECEIPT NOR POSSESSION OF THIS DOCUMENT ALONE, FROM ANY SOURCE, CONSTITUTES SUCH
PERMISSION. POSSESSION, USE, COPYING OR DISCLOSURE BY ANYONE WITHOUT UTC AEROSPACE SYSTEMS' EXPRESS
WRITTEN PERMISSION IS NOT AUTHORIZED AND MAY RESULT IN CRIMINAL AND/OR CIVIL LIABILITY.
EAR NOTICE
SUBJECT TO THE EAR, ECCN [EAR99].
THIS INFORMATION IS SUBJECT TO THE EXPORT CONTROL LAWS OF THE UNITED STATES, SPECIFICALLY INCLUDING THE
EXPORT ADMINISTRATION REGULATIONS (EAR), 15 C.F.R. PART 730 ET. SEQ. TRANSFER, RETRANSFER, OR DISCLOSURE OF THIS
DATA BY ANY MEANS TO A NON-U.S. PERSON (INDIVIDUAL OR COMPANY), WHETHER IN THE UNITED STATES OR ABROAD,
WITHOUT ANY REQUIRED EXPORT LICENSE OR OTHER APPROVAL FROM THE U.S GOVERNMENT IS PROHIBITED, INCLUDING
WITHOUT LIMITATION ANY DIVERSION TO A MILITARY END USER OR USE IN A MILITARY END USE APPLICATION.
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Table of Contents
Summary of Contents for Kidde Technologies SR2033
- Page 1 OPERATION & MAINTENANCE MANUAL NFI 40FT CNG BUSES AT BC TRANSIT (SR2033, SR2087 & SR2156) Manual No: 181922 Revision B: Oct 25, 2017 PROPRIETARY NOTICE THIS DOCUMENT IS THE PROPERTY OF UTC AEROSPACE SYSTEMS. YOU MAY NOT POSSESS, USE, COPY OR DISCLOSE THIS DOCUMENT OR ANY INFORMATION IN IT, FOR ANY PURPOSE, INCLUDING WITHOUT LIMITATION, TO DESIGN, MANUFACTURE OR REPAIR PARTS, OR OBTAIN ANY GOVERNMENT APPROVAL TO DO SO, WITHOUT UTC AEROSPCE SYSTEMS’...
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Page 2: Table Of Contents
181922 Rev B Table of Contents INTRODUCTION.............................. 3 BLOCK DIAGRAM ............................... 3 SYSTEM OPERATION ............................ 4 NORMAL CONDITION .............................. 4 FIRE SCENARIO ................................ 4 TRACE LEAK (20% SCENARIO ........................ 4 LEL SIGNIFICANT LEAK (50% SCENARIO ...................... 5 ... -
Page 3: Introduction
181922 Rev B INTRODUCTION This manual describes the operation and maintenance of the Kidde Automatic Fire Detection and Suppression System (AFSS) and Gas Leak Detection System (GDS) as installed on the NFI 40ft CNG buses at BC Transit. The AFSS system is of a 1 Zone, 1 Shot type configuration. The fire detection system provides fire detection coverage for the engine compartment and consist of: ... -
Page 4: System Operation
181922 Rev B SYSTEM OPERATION The state of the system is constantly monitored and is displayed to the driver via the protection panel. The system provides visual and audial indicators to the driver when the state of the system changes. NORMAL CONDITION During normal operating conditions (appropriate system power applied and no fault conditions present), the protection panel’s system “OK”... -
Page 5: Gas Significant Leak (50% Lel) Scenario
181922 Rev B GAS SIGNIFICANT LEAK (50% LEL) SCENARIO When a gas sensor detects a significant leak, the Protection Panel’s GAS LEAK indicator illuminates (steady-on) and an audio alarm sounds. The gas LEAK indicator and the audible alarm warnings will stay on until the TEST/RESET button on the Protection Panel is pressed. The status indicator on the individual Gas Leak Detector that detected the significant gas leak will remain illuminated solid red until the system is reset in accordance with system reset portion of this manual. - Page 6 181922 Rev B ALARM SILENCE switch o Use to silence the audible alarm TEST/RESET switch with DELAY ENGINE STOP indicator During normal “System OK” state: o Allows testing of indicators and audible alarm during standby operation During Fire Event: o Illuminates solid red when fire event is detected o Illuminates blinking red when pressed and released for a 15 second additional delay.
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Page 7: Manual Activation Switch (421317)
181922 Rev B MANUAL ACTIVATION SWITCH (421317) The Manual Activation Switch allows immediate system activation (extinguisher discharge and engine shutdown) by the vehicle operator at any time. Activation of the switch is accomplished by twisting and pulling the tamper seal (not shown) to remove, lifting the cover and pressing the red “FIRE”... -
Page 8: Spot Thermal Detector (420419-350)
181922 Rev B SPOT THERMAL DETECTOR (420419-350) Spot Thermal detectors are point thermal switches which work by contact closure to initiate an alarm when the temperature of the area surrounding the detector exceeds its pre-set alarm temperature. The detectors reset themselves automatically once the temperature falls below the pre-set alarm temperature. -
Page 9: Gas Leak Detector (420473-2050)
181922 Rev B GAS LEAK DETECTOR (420473-2050) The PM-MDS Gas Leak Detector utilizes a temperature compensated metal-oxide sensing element to detect combustible gases including CNG and LNG. The detector contains two preset detection thresholds: Trace alarm (20% LEL of Methane) ... -
Page 10: End-Of-Line Device (420241)
181922 Rev B END-OF-LINE DEVICE (420241) The End-of-Line device is required for supervision of the fire and gas detection circuits. It consists of a resistor installed into a connector and is environmentally sealed with potting compound. The End-of-Line device is installed on the last detector in each series of detectors. FIGURE 6 –... -
Page 11: Electrical Interconnections
181922 Rev B FIRE EXTINGUISHER (421220-22) The Fire Extinguisher is an electrically operated, stored pressure type extinguisher that contains 25 pounds of BC rated ‘Purple K’ dry chemical extinguishing agent pressurized with nitrogen. A fast opening valve is mounted on a DOT certified cylinder. The extinguisher is installed horizontally in the bottle-mounting bracket (421222) with the gauge right. -
Page 12: System Reset
181922 Rev B SYSTEM RESET FIRE: After a fire, the system is restored to operational status as follows: Disconnect system power by removing the system fuses. The system has two fuses. Remove the Fire Extinguisher: a. Disconnect the electrical connector on the extinguisher valve from the vehicle harness. b. -
Page 13: Trace Gas Leak
181922 Rev B c) Remove the anti-recoil plug and immediately connect the distribution piping. d) Connect system power by replacing the system fuses and verify the red fire ALARM indicator on the Protection Panel is NOT on. NOTE: A FIRE TROUBLE INDICATOR WILL BE ON BECAUSE THE ELECTRICAL CONNECTOR ON THE EXTINGUISHER VALVE IS NOT CONNECTED. -
Page 14: Periodic Maintenance
181922 Rev B PERIODIC MAINTENANCE PRE-TRIP Verify the Protection Panel’s green ‘SYSTEM OK’ indicator is illuminated and that all other indicators are OFF. Press the TEST/RESET Switch. The following should occur: o All indicators and switches on the Protection Panel should illuminate. o An audible alarm should sound. -
Page 15: Every 18000 Miles Or Semi-Annually (Whichever Occurs First)
181922 Rev B Extinguisher & Distribution System Verify the extinguisher is oriented correctly. Verify the extinguisher pressure gauge pointer is in the green arc at room temperature. Verify distribution piping and nozzles are intact, unobstructed, and that nozzle blow-off caps are in place. -
Page 16: Troubleshooting Guide
181922 Rev B TROUBLESHOOTING GUIDE SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Check protection panel fuse (15A). Check power and ground connections & voltage to protection panel. All Protection Panel indicators No power to protection panel off. (NOTE: Below 9 volts the system will not function.) If the power (~24Volts) and ground are present at the... - Page 17 181922 Rev B SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Check the harness connection at the extinguisher Use a value simulator and starting at the first connection Protection Panel green in the extinguisher circuit Component not connected or SYSTEM OK lamp off, yellow systematically check the damaged harness in the fire TROUBLE lamp on solid...
- Page 18 181922 Rev B SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Check gas detectors’ LED indicators. If any are not illuminated this is an indication that power is not being received. Check harness connections at the gas detectors. Check for the correct voltage values on the gas circuit.
- Page 19 181922 Rev B SYMPTOM PROBABLE CAUSE CORRECTIVE ACTION Let extinguishers warm up to room temperature (about 70°F) and recheck the gauge. Extinguisher cold If the pointer is then within the green arc no corrective action Extinguisher pressure gauge is required reading is low Have the fire extinguisher Extinguisher leaking or...
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Page 20: Replacement Parts List
181922 Rev B REPLACEMENT PARTS LIST Part Number Description 413484-1345 CONTROL PANEL, FIRE & GAS ICD 421317-1 Manual Activation Switch 421317-2 Manual Activation Switch Tamper Seal 420419-350 350⁰F Spot Thermal Detector 420473-2050 Methane Gas Sensor 420483 Methane Detector Rebuild Kit 420241 EOL, End of Line 421220-22... -
Page 21: Contact Information
181922 Rev B CONTACT INFORMATION Any questions concerning the information presented in this manual should be addressed to: Kidde Aerospace & Defense Attn: Commercial Ground Vehicle Group 4200 Airport Dr. N.W. Wilson, NC, 27896 Phone: 252 237 7004 - Ask to speak to someone is the Commercial Ground Vehicle Group REVISION HISTORY Revision Date...
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