Installation and Operation Manual Owner manual

745-020-B0-003, Rev. C
5
Table of Contents, continued
4.8 ECM DIP Switch and Fuse Confi guration ...................................................... 47
4.9 ECM Interface Block Diagram and Connectors ............................................. 49
4.10 ECM Input Voltage and Line Sense Confi gurations ....................................... 50
4.11 ECM Self-test ................................................................................................. 51
4.12 Maintenance Functions ................................................................................. 52
5.0 Turn-up and Test ..................................................................................................... 53
5.1 Appearance and Condition of Components ................................................... 55
5.2 System Preparation ....................................................................................... 55
5.3 Performing a Local APU Test ......................................................................... 56
5.4 Generator System Sensor Verifi cation ........................................................... 56
5.4.1 Enclosure Alarm Verifi cation ............................................................... 58
5.4.2 AC and DC Line Sense Verifi cation .................................................... 57
6.0 Operation ................................................................................................................. 58
6.1 Normal Operating Condition .......................................................................... 58
6.1.1 AC Line Fail ......................................................................................... 58
6.1.2 Low DC Bus Level............................................................................... 58
6.2 Ignition Battery Charger Overview ................................................................. 59
7.0 Maintenance ............................................................................................................ 60
7.1 Servicing the APU .......................................................................................... 61
7.2 Filter Cleaning ................................................................................................ 62
7.3 Pad Shear Magnetic Switch Replacement..................................................... 63
7.4 Replacing Gas Hazard Sensor ...................................................................... 64
7.5 Replacing Ignition Battery Charger Module Assembly ................................... 65
7.6 Replacing Engine Control Module ................................................................ 66
7.7 Fuel Conversion – Natural Gas to LP ............................................................ 67
7.7.1 Pre-regulator Removal with Low Pressure Switch Installation ............ 67
7.7.2 Switching the LP Port to the NG Port .................................................. 68
7.8 Gas Solenoid Replacement Procedure.......................................................... 69
7.9 Maxitrol Pre-regulator Calibration .................................................................. 70
8.0 Interconnection ....................................................................................................... 74
8.1 Gas Hazard Alarm Interface Connector ......................................................... 74
8.2 Low Fuel Pressure Interface Connector ........................................................ 74
8.3 Gas Solenoid Interface Connector ................................................................ 75
8.4 48V Charger Module Control Interface Connector......................................... 75
8.5 ECM Enclosure Alarm Interface Connector ................................................... 76
8.6 Inverter Battery DC Sense Interface Connector ............................................ 76
8.7 48VDC Charger Control Interface Connector ................................................ 77
8.8 ECM AC Line Sense 120/240V Interface ....................................................... 77
8.9 ECM APU Control Interface ........................................................................... 78
8.10 ECM Alarm Interface & Communications ...................................................... 78