Install Manual
Table Of Contents
- Table of Contents
- 1. Important Safety Instructions
- 1.1 Warning, Caution, and Note Styles Used in This Manual
- 1.2 General Information
- 1.3 General Precautions
- 1.4 Generator Set Voltage Is Deadly
- 1.5 Engine Exhaust Is Deadly
- 1.6 Fuel and Fumes Are Flammable
- 1.7 Batteries Can Explode
- 1.8 Vented Batteries
- 1.9 Moving Parts Can Cause Severe Personal Injury or Death
- 1.10 The Hazards of Carbon Monoxide
- 2. Introduction
- 3. Pre-Installation Considerations
- 4. Installation
- 5. Startup and Configuration
- Appendix A. Fuel Line Selection
- Appendix B. Outline and System Drawings
- Appendix C. Wiring Diagrams
- Appendix D. Seismic Requirements
4. Installation3-2016
27A051X873 (Issue 5) Copyright © 2016 Cummins Inc.
WARNING
Fuel leaks can lead to explosive accumulations of gas. Prevent gas leaks
and the accumulation of gaseous fuel in the event of a leak.
No. Description No. Description
1 Shutoff Valve 3 Meter
2 Flexible Fuel Line 4 Service Regulator
FIGURE 4. TYPICAL NATURAL GAS INSTALLATION
Natural Gas Supply Line Size
The natural gas supply meter may need to be exchanged for a higher capacity
meter to supply the additional gas consumed by the generator set.
Use the total load requirement of the generator set to determine the size of
the fuel supply pipe. Use the tables and charts in the Fuel Line Selection
appendix to determine the correct pipe size.
An older site might require upgrading and repair of the gas supply system.
Schedule an upgrade or repair to minimize power and gas supply
interruptions.
Make sure the full load fuel supply pressure at the inlet to the generator fuel
shutoff valves is set at 6 - 12 inch water column (1.5 - 3.0 kPa) for all
operating loads (no load to full load). (The maximum pressure under any
condition is 13 inch water column [3.2 kPa].) Refer to the Model Specifications
section.