Whittaker C173285-3 Operation And Maintenance Instruction

Electric gas fuel metering system

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TECHNICAL MANUAL

OPERATION AND

MAINTENANCE INSTRUCTIONS

ELECTRIC GAS

FUEL METERING SYSTEM

PART NUMBER C173285-3

AND ASSOCIATED

MOTOR CONTROLLERS

PROPRIETARY INFORMATION NOTICE: – T

HEREIN IS THE PROPERTY OF

ORPORATION

AND DISCLOSURE OF THE CONTENTS TO OTHERS IS GIVEN IN CON

. T

FIDENCE

HIS MATERIAL MUST NOT BE REPRODUCED OR COPIED

DISCLOSED IN WHOLE OR IN PART WITHOUT THE APPROVAL OF

, N

TROLS

ORTH

OLLYWOOD

T.M. C173285-3

HE INFORMATION CONTAINED

HITTAKER

ONTROLS

, C

, U.S.A.

ALIFORNIA

1 DECEMBER 1997

, A U

NIT OF

HITTAKER

OR OTHERWISE

HITTAKER

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Page 1 T.M. C173285-3 TECHNICAL MANUAL OPERATION AND MAINTENANCE INSTRUCTIONS ELECTRIC GAS FUEL METERING SYSTEM PART NUMBER C173285-3 AND ASSOCIATED MOTOR CONTROLLERS PROPRIETARY INFORMATION NOTICE: – T HE INFORMATION CONTAINED , A U HEREIN IS THE PROPERTY OF HITTAKER ONTROLS NIT OF...
Page 2 T.M. C173285-3 1 DECEMBER 1997 Reproduction of the information or illustrations contained in this publication is not permitted, without written permission from the publisher: Whittaker Controls, 12838 Saticoy Street, North Hollywood, California 90605, U.S.A. LIST OF EFFECTIVE PAGES Insert latest changed pages; dispose of superseded pages.
Page 3: Table Of Contents
T.M. C173285-3 1 DECEMBER 1997 TABLE OF CONTENTS Section Paragraph/Title Page Section Paragraph/Title Page 3-13. Electrical Interfaces ... . 3-1 SAFETY SUMMARY ....iii PE Grounding Connection .
Page 4 T.M. C173285-3 1 DECEMBER 1997 Section Paragraph/Title Page Section Paragraph/Title Page MAINTENANCE ....5-1 5-21. Switch Enclosure 5-1. General ..... 5-1 Replacement .
Page 5 T.M. C173285-3 1 DECEMBER 1997 Figure Title Page Figure Title Page DLE Gas Supply Absolute Pressure Inter-Shutoff Vent Valve (GVV) ..7-26 7-1. 7-6. Transducer (Outer GP1/GP2) ..7-2 7-7.
Page 6: Safety Summary
T.M. C173285-3 1 DECEMBER 1997 SAFETY SUMMARY GENERAL ing equipment is readily available and in working order. The following are general safety precautions that are not related to specific procedures and therefore GIVE CLEANERS SPECIAL CARE do not appear elsewhere in this publication. These...
Page 7: Introduction
T.M. C173285-3 1 DECEMBER 1997 SECTION I INTRODUCTION Section III – Installation – Provides information for 1-1. PURPOSE OF MANUAL. installing, connecting, and preparing the 1-2. This technical manual contains instructions for equipment for use. operation and maintenance of Electric Gas Fuel Metering System and the associated Motor Con- Section IV –...
Page 8 T.M. C173285-3 1 DECEMBER 1997 Pounds per square inch Single Annular Combustor psia Pounds per square inch, absolute SPDT Single-pole, double-throw psid Pounds per square inch, differential Volts direct current psig Pounds per square inch, gage Table 1-1. Fuel Metering System Specifications/Specifications/Major Components Applications .
Page 9 T.M. C173285-3 1 DECEMBER 1997 Table 1-1. Fuel Metering System Specifications/Specifications/Major Components (continued) WHITTAKER WHITTAKER DESCRIPTION PART NUMBER DESIGNATION HAZARDOUS AREA RATING Gas Supply Temperature Trans- C173265 EEx d IIB T4 Ta 120°C, Demko Cer- mitter tification 95D119.657 DLE Gas Supply Absolute Pressure...
Page 10: System Description And Operation
The fuel metering system (see Figure 2-1) transducers with their associated electrical consists of two major components, the Electric Gas interface cards) Fuel Metering Skid (P/N C173285-3), and the four C SAC Gas Supply Absolute Pressure Trans- individual Motor Controllers (P/N C173455). ducer (GP1B) 2-3.
Page 11 T.M. C173285-3 1 DECEMBER 1997 Figure 2-1. Fuel Metering Skid Major Component Locations (Sheet 1 of 3)
Page 12 T.M. C173285-3 1 DECEMBER 1997 Figure 2-1. Fuel Metering Skid Major Component Locations (Sheet 2 of 3)
Page 13 T.M. C173285-3 1 DECEMBER 1997 Figure 2-1. Fuel Metering Skid Major Component Locations (Sheet 3 of 3)
Page 14: Operation
T.M. C173285-3 1 DECEMBER 1997 OPERATION. (Refer to Figure 2-2.) 2-16. The position commands from the Mark V LM 2-7. Control System are derived from many parameters 2-8. The fuel metering system is designed to pro- such as engine operating conditions, gas properties, vide the controlled flow of natural gas fuel to both gas pressures and gas temperatures.
Page 15 T.M. C173285-3 1 DECEMBER 1997 Figure 2-3. Fuel Metering System Flow Diagram...
Page 16: Inter-Shutoff Vent Valve
T.M. C173285-3 1 DECEMBER 1997 Table 2-1. Gas Isolation Valve (SOV1 and SOV2) Specifications/Characteristics Valve Type ....Gas Flow Shutoff, Solenoid Pilot Operated, Gas Actuated, Fail Safe Closed Service Fluid .
Page 17 T.M. C173285-3 1 DECEMBER 1997 Table 2-2. Inter-Shutoff Vent Valve (GVV) Specifications/Characteristics Valve Type ... Direct Solenoid Operated, Shutoff, Fail Open Service Fluid ..... Natural Gas (per MID-TD-0000-1) Line Size .
Page 18: Fmvo And Fmvp)
T.M. C173285-3 1 DECEMBER 1997 2-23. SAC/DLE MANUAL SELECTOR VALVE operations, the manual selector valve is set to the (SOV4). fully closed position, restricting gas flow only to SAC fuel metering valve (FMVB). In the closed position, 2-24. The SAC/DLE Manual Selector Valve is a...
Page 19 T.M. C173285-3 1 DECEMBER 1997 Table 2-5. Fuel Metering Valve (FMVB, FMVI, FMVO and FMVP) Specifications/Characteristics Valve Type ..... . Gas Fuel Metering, DC Servomotor Operated, Sleeve-Type, Fail Closed Service Fluid .
Page 20 T.M. C173285-3 1 DECEMBER 1997 2-30. DLE ABSOLUTE PRESSURE TRANSDUCER (GP1/GP2). (Refer to Figure 2-7.) 2-31. When operating DLE engines, gas pressure at the inlet and outlet of each fuel metering valve is monitored by the DLE Absolute Pressure Trans- ducer.
Page 21 T.M. C173285-3 1 DECEMBER 1997 Figure 2-7. DLE Gas Supply Absolute Pressure Transducer (GP1/GP2) Junction Box 2-32. SAC ABSOLUTE PRESSURE TRANS- 2-34. MOTOR CONTROLLERS (MCB, MCI, DUCER (GP1B). (Refer to Figure 2-8.) MCO and MCP). (Refer to Figure 2-9.) 2-33. When operating SAC engines, only the gas 2-35.
Page 22 T.M. C173285-3 1 DECEMBER 1997 Figure 2-9. Motor Controller (MCB, MCI, MCO and MCP) 2-37. The servo amplifier is mounted on a cold plate on the lower level, and the resistor/capacitor network, inlet EMI noise filter and outlet common mode choke filter are on the middle level. All of the electrical interfaces on the top level are marked and defined on Figure 7-5.
Page 23 T.M. C173285-3 1 DECEMBER 1997 SECTION III INSTALLATION 3-1. GENERAL. (raised face configuration). The gaskets and the as- sociated attaching parts must be in accordance the 3-2. This section contains information on installa- applicable ANSI standards. tion and interfacing of the fuel metering system with the engine and the Mark V LM Engine Control 3-11.
Page 24 T.M. C173285-3 1 DECEMBER 1997 Figure 3-1. Electrical Interface Panel Diagram Table 3-1. Main Junction Box Interface Connectors PART NUMBER CABLE STRAIN RELIEF REFERENCE MAIN JUNCTION MATING CONNECTOR BACKSHELL DESIGNATION BOX CONNECTOR (Whittaker Supplied) (Whittaker Supplied) MS3450LS28-15PZ MS3459LS28-15SZ M85049/52S28A MS3450LS24-28PX...
Page 25 OPEN and CLOSED positions), pro- c. If voltage is present but the valve will not ceed to paragraph 4-4 below. If the position indi- cator does not move normally, proceed to para- actuate, return the valve to Whittaker Controls for graph 4-5 below. repair.
Page 26: Transmitter (Tt1/Tt2)
Repeat both the ZERO and SPAN calibra- wiring faults are found, return the temperature tions until both values repeat within the required transmitter to Whittaker Controls for repair. tolerance. SAC GAS SUPPLY ABSOLUTE PRES- e. Following any pressure transducer calibra- 4-8.
Page 27: Sac/Dle Manual Selector Valve (Sov4)
Incorporated. These programs and communication arrangements that allow precise switch settings conversion devices are available from Whittaker relative to the valve position. If adjustment of the Controls. Using these items, the following procedure switches is required, proceed as follows: may be performed.
Page 28 T.M. C173285-3 1 DECEMBER 1997 Figure 4-1. Motor Controller/Fuel Metering Valve Test Setup (Sheet 1 of 2)
Page 29 T.M. C173285-3 1 DECEMBER 1997 Figure 4-1. Motor Controller/Fuel Metering Valve Test Setup (Sheet 2 of 2)
Page 30 4-20 below. If there are error codes which cannot be reset, return the motor con- Press the spacebar (the RESET square troller to Whittaker Controls for repair. will turn to clear). 4-21. ERROR CODE FAULT ISOLATION. m. Move cursor to the numbers next to PCP.
Page 31 T.M. C173285-3 1 DECEMBER 1997 Table 4- 1. Hexadecimal Conversion Chart for Use with Terminal Programs HDTERM and HDRTGE STROKE STROKE RESOLVER HEXADECIMAL STROKE STROKE RESOLVER HEXADECIMAL (Inches Open) (% Open) COUNTS EQUIVALENT (Inches Open) (% Open) COUNTS EQUIVALENT 1.500 100.00...
Page 32 If the position tight. indicator is not in the closed position, return the valve to Whittaker Controls for repair. b. If the nuts are loose, position the shaft so that in the valve closed position, the LVDT voltage 4-24.
Page 33 Press the spacebar (the RESET square developed by PCI Incorporated. These programs will turn clear). and communication conversion devices are avail- able from Whittaker Controls. With these items, the following procedure may be performed. m. Move the cursor to the numbers next to PCP.
Page 34 4- x. Press the spacebar (the valve should 20. If any error codes cannot be reset, return the move to its 0.20 inch stroke position). fuel metering valve to Whittaker Controls for repair. 4-10...
Page 35: General
T.M. C173285-3 1 DECEMBER 1997 SECTION V MAINTENANCE 5-1. GENERAL. 5. Loosen but do not remove the two screws securing the switch bracket to 5-2. This section outlines specific repair tasks the valve housing, to allow adjustment which may be required, as determined by the re- of the bracket/switch position.
Page 36: Gas Isolation Valve Replacement
T.M. C173285-3 1 DECEMBER 1997 4. Following switch adjustment, torque 2. Reconnect the vent line(s) to the the switch bracket attaching screws to valve(s) and to the vent flange. 0,3 to 0,5 Nm (3 to 4 pound-inches). Tighten the tube fittings hand tight Recheck to make sure that the switch plus one full turn.
Page 37: Connectors
T.M. C173285-3 1 DECEMBER 1997 3. Remove the screws and washers se- b. Installation. curing the terminal block access cover 1. Install the new LVDT assembly on the to the LVDT assembly, and remove valve and secure it with the screws the cover.
Page 38: Pressure Transducer Replacement
Tighten the cover until it fully bottoms out in the housing. 5-12. There are no field repair procedures for the SAC gas supply absolute pressure transducer. If the pressure transducer malfunctions in service or is suspected to be defective, return it to Whittaker Controls.
Page 39: Transmitter (Tt1/Tt2)
If the tempera- Whittaker Controls. ture transmitter malfunctions in service or is suspec- ted to be defective, return it to Whittaker Controls. 5-19. Vent Valve Replacement. 5-16. Temperature Transmitter Replacement. a. Removal.
Page 40: Pressure Transducer (Gp1B)
T.M. C173285-3 1 DECEMBER 1997 2. Remove the bolts and washers se- 5-20. SAC/DLE MANUAL SELECTOR VALVE (SOV4). curing the selector valve to the mani- fold, and remove the selector valve. 5-21. Switch Enclosure Replacement. b. Installation. a. Removal. 1. Install the selector valve on the mani- 1.
Page 41 T.M. C173285-3 1 DECEMBER 1997 3. Remove and discard the packing be- 2. Disconnect the cables connected to tween the pressure transducer and the the 32-pin connector. Make sure that mounting block. the connector terminations are marked on the cable, so that they can be b.
Page 42: Maintenance
T.M. C173285-3 1 DECEMBER 1997 SECTION VI MAINTENANCE PARTS LIST 6-1. GENERAL. 6-3. MAINTENANCE PARTS. 6-2. This section identifies parts recommended for 6-4. Table 6-1 comprises a listing of spare parts on-site maintenance of fuel metering system. All of recommended for on-site maintenance support of the recommended items may be ordered from the fuel metering system.
Page 43: Inter-Shutoff Vent Valve (Gvv)
T.M. C173285-3 1 DECEMBER 1997 Table 6-1. Recommended Spare Parts (continued) ITEM RECOMMENDED NUMBER PART NUMBER DESCRIPTION QUANTITY DLE ENGINE FUEL METERING VALVE (FMVI, FMVO or FMVP) MS35338-138 Washer, Lock (#10) (LVDT shaft locking) NAS1352C08-24 Screw, Cap (#8-32 x 1½ inch long) (LVDT...
Page 44: Motor Controllers
T.M. C173285-3 1 DECEMBER 1997 Table 6-1. Recommended Spare Parts (continued) ITEM RECOMMENDED NUMBER PART NUMBER DESCRIPTION QUANTITY DLE GAS SUPPLY ABSOLUTE PRESSURE TRANSDUCER (GP1/GP2) NAS1354C04-12 Screw (#4-40 x 0.75 inch long) (manifold attaching) C326462 Screw (circuit board attaching) C326469...
Page 45: General
T.M. C173285-3 1 DECEMBER 1997 SECTION VII ELECTRICAL WIRING INFORMATION AND INTERCONNECTION DIAGRAMS 7-1. GENERAL. 7-8. CABLE WIRE SIZING. 7-2. This section contains the electrical schematic 7-9. All customer cabling conductors must be 18 diagrams and interconnection wire lists for the...
Page 46 T.M. C173285-3 1 DECEMBER 1997 Figure 7-1. DLE Gas Supply Absolute Pressure Transducer (Outer GP1/GP2)
Page 47 T.M. C173285-3 1 DECEMBER 1997 Figure 7-2. DLE Gas Supply Absolute Pressure Transducer (Inner GP1/GP2)
Page 48 T.M. C173285-3 1 DECEMBER 1997 Figure 7-3. DLE Gas Supply Absolute Pressure Transducer (Pilot GP1/GP2)
Page 49: Dle Gas Supply Absolute Pressure
T.M. C173285-3 1 DECEMBER 1997 DLE GAS SUPPLY ABSOLUTE PRESSURE TRANSDUCER (GP1/GP2 – OUTER) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MARK V LM XDSA1-1 J1-A <R2> TBSA 001 P12A MARK V LM XDSA1-2 J1-B <R2>...
Page 50: Dle Gas Supply Absolute Pressure
T.M. C173285-3 1 DECEMBER 1997 DLE GAS SUPPLY ABSOLUTE PRESSURE TRANSDUCER (GP1/GP2 – INNER) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MARK V LM XDSA2-1 J1-D <R2> TBSA 013 P12VC MARK V LM XDSA2-2 J1-E <R2>...
Page 51 T.M. C173285-3 1 DECEMBER 1997 DLE GAS SUPPLY ABSOLUTE PRESSURE TRANSDUCER (GP1/GP2 – PILOT) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MARK V LM XDSA3-1 J1-G <R2> TBSA 017 P12VE MARK V LM XDSA3-2 J1-H <R2>...
Page 52: Fuel Metering Valve
T.M. C173285-3 1 DECEMBER 1997 Figure 7-4. Fuel Metering Valve (FMVB, FMVI, FMVP or FMVO)
Page 53 T.M. C173285-3 1 DECEMBER 1997 DLE ENGINE OUTER “A” FUEL METERING VALVE (FMVO) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION SHIELD TO MARK V GROUND SHIELD BAR OL-1 J4-A LVDT (EXCITATION *) MARK V LM OL-2 J4-B <R3>...
Page 54 T.M. C173285-3 1 DECEMBER 1997 DLE ENGINE OUTER “A” FUEL METERING VALVE (FMVO) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MOTOR (SHIELD 1, 2, 3, 5) OUTER MOTOR CON- 0M-4 J9-D TERMINAL 4 TROLLER J12-5 MOTOR...
Page 55 T.M. C173285-3 1 DECEMBER 1997 DLE ENGINE PILOT “B” FUEL METERING VALVE (FMVB) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION – SHIELD TO MARK V GROUND SHIELD BAR PL-1 J4-V LVDT (EXCITATION *) MARK V LM...
Page 56 T.M. C173285-3 1 DECEMBER 1997 DLE ENGINE PILOT “B” FUEL METERING VALVE (FMVB) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MOTOR (SHIELDS 1, 2, 3, 5) PILOT MOTOR PM-4 J11-D TERMINAL 4 CONTROLLER J12-5 MOTOR (CHASSIS GROUND) PILOT MOTOR...
Page 57 T.M. C173285-3 1 DECEMBER 1997 DLE ENGINE INNER “C” FUEL METERING VALVE (FMVI) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION – SHIELD TO MARK V GROUND SHIELD BAR IL-1 J4-K LVDT (EXCITATION *) MARK V LM...
Page 58 T.M. C173285-3 1 DECEMBER 1997 DLE ENGINE INNER “C” FUEL METERING VALVE (FMVI) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MOTOR (SHIELD 1, 2, 3, 5) INNER MOTOR CON- IM-4 J9-J TERMINAL 4 TROLLER J12-5 MOTOR...
Page 59 T.M. C173285-3 1 DECEMBER 1997 SAC ENGINE FUEL METERING VALVE (FMVB) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION – SHIELD TO MARK V GROUND SHIELD BAR BL-1 J4-f LVDT (EXCITATION *) MARK V LM BL-2 J4-g <R3>...
Page 60 T.M. C173285-3 1 DECEMBER 1997 SAC ENGINE FUEL METERING VALVE (FMVB) MAIN JUNCTION BOX TERMINATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION MOTOR (SHIELD 1, 2, 3, 5) BASE MOTOR BM-4 J11-J TERMINAL 4 CONTROLLER J12-5 MOTOR (CHASSIS GROUND) BASE MOTOR CON-...
Page 61 T.M. C173285-3 1 DECEMBER 1997 SERVO AMPLIFIER J4-1 COMMAND + J4-2 COMMAND – J4-3 /ENABLE J4-4 PROGRAMABLE MON JUMPERED J4-5 PHASE A MOTOR J4-6 SIGNAL GROUND J4-7 CONTACT POWER J4-8 CONTACT INPUT J4-9 DIGITAL OUTPUT 1 J4-10 DIGITAL OUTPUT 2...
Page 62 T.M. C173285-3 1 DECEMBER 1997 OUTER MOTOR CONTROLLER (MCO) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J5-1 110 VDC SOURCE (+) J5-2 110 VDC SOURCE (–) J5-3 GROUND J6-1 (CONTACT POWER AMPLIFIER J4-7) MARK V <Q11>...
Page 63: Fuel Metering Valve
T.M. C173285-3 1 DECEMBER 1997 OUTER MOTOR CONTROLLER (MCO) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J12-2 (MOTOR PHASE B) OUTER FUEL METERING J9-B VALVE MOTOR TERMINAL 2 J12-3 (MOTOR PHASE C) OUTER FUEL METERING...
Page 64 T.M. C173285-3 1 DECEMBER 1997 PILOT MOTOR CONTROLLER (MCP) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J5-1 110 VDC SOURCE (+) J5-2 110 VDC SOURCE (–) J5-3 GROUND J6-1 (CONTACT POWER AMPLIFIER J4-7) MARK V LM <Q11>...
Page 65 T.M. C173285-3 1 DECEMBER 1997 PILOT MOTOR CONTROLLER (MCP) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J12-2 (MOTOR PHASE B) PILOT FUEL METERING VALVE J11-B MOTOR TERMINAL 2 J12-3 (MOTOR PHASE C) PILOT FUEL METERING VALVE...
Page 66 T.M. C173285-3 1 DECEMBER 1997 INNER MOTOR CONTROLLER (MCI) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J5-1 110 VDC SOURCE (+) J5-2 110 VDC SOURCE (–) J5-3 GROUND J6-1 (CONTACT POWER AMPLIFIER J4-7) MARK V LM <Q11>...
Page 67 T.M. C173285-3 1 DECEMBER 1997 INNER MOTOR CONTROLLER (MCI) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J12-2 (MOTOR PHASE B) INNER FUEL METERING J9-G VALVE MOTOR TERMINAL 2 J12-3 (MOTOR PHASE C) INNER FUEL METERING...
Page 68 T.M. C173285-3 1 DECEMBER 1997 BASE MOTOR CONTROLLER (MCB) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J5-1 110 VDC SOURCE (+) J5-2 110 VDC SOURCE (–) J5-3 GROUND J6-1 (CONTACT POWER AMPLIFIER J4-7) MARK V LM <Q11>...
Page 69 T.M. C173285-3 1 DECEMBER 1997 BASE MOTOR CONTROLLER (MCB) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION J12-2 (MOTOR PHASE B) BASE FUEL METERING VALVE J11-G MOTOR TERMINAL 2 J12-3 (MOTOR PHASE C) BASE FUEL METERING VALVE...
Page 70: Inter-Shutoff Vent Valve
T.M. C173285-3 1 DECEMBER 1997 Figure 7-6. Inter-Shutoff Vent Valve (GVV) INTER-SHUTOFF VENT VALVE (GVV) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION BROWN (SOLENOID COIL) MARK V LM J3A-22 J3-X <Q51> DTBC 021 CO06SO BLUE...
Page 71: Gas Supply Temperature
T.M. C173285-3 1 DECEMBER 1997 Figure 7-7. Gas Supply Temperature Transmitter (TT1/TT2) GAS SUPPLY TEMPERATURE TRANSMITTER (TT1/TT2) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION SHIELD (1, 2, 3) TO MARK V GROUND J2A-1 J2-A SHIELD BAR...
Page 72: Gas Isolation Shutoff Valve
T.M. C173285-3 1 DECEMBER 1997 Figure 7-8. Gas Isolation Shutoff Valve (SOV1 or SOV2) GAS ISOLATION SHUTOFF VALVE (SOV1) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION (SOLENOID COIL) MARK V LM J3A-10 J3-K <P> PTBA 065 SOL3H...
Page 73: Sac/Dle Manual Selector
T.M. C173285-3 1 DECEMBER 1997 SWITCH (CLOSED) SWITCH (OPEN) C1732-221 Figure 7-9. SAC/DLE Manual Selector Valve (SOV4) SAC/DLE MANUAL SELECTOR VALVE (SOV4) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION SHIELD (1, 2) TO MARK V GROUND SHIELD...
Page 74 T.M. C173285-3 1 DECEMBER 1997 GREEN BLACK WHITE – C1732-22 Figure 7-10. SAC Gas Supply Absolute Pressure Transducer (GP1B) SAC GAS SUPPLY ABSOLUTE PRESSURE TRANSDUCER (GP1B) TERMIN- MAIN JUNCTION BOX ATION END CONNECTIONS CONNECTIONS MARK V LM TERMINATION SHIELD TO MARK V GROUND SHIELD BAR...