Quick Start Installer

A062M459 (Issue 2) 7-2019 Page 3 of 6 Copyright © 2019 Cummins Inc.
Propane Vapor
No.
Description
No.
Description
1
Distance as Required by Code and/or Component Suppliers
6
Full Flow Manual Shutoff Valve
2
Secondary Service Pressure Regulator
7
Flexible Fuel Line
3
Primary Service Pressure Regulator
8
Sediment Trap
4
Liquid Propane Fuel Tank
9
Fuel Line Connection at Generator Set
5
Note: A branch in the fuel line to the generator set may allow
selection of a smaller diameter line size to the generator set
d d f l
10 Generator Set
Selecting the Fuel Type
Note: This generator set can run on either natural gas or propane vapor fuel. All generator sets come from the factory adjusted to
run on
natural gas. To run on propane fuel:
1. From the display, navigate to the Fuel Type field under Generator Config, and use an arrow to select “LP”.
Note: Do not change the number in the Config field.
2. Change the manual fuel selection valve to LP.
Fuel Consumption Specifications (at Full Load)
C13N6H
C17N6H
C20N6H, C20N6HC
Fuel Pressure
Type
scfh
BTU/hr
scfh
BTU/hr
scfh
BTU/hr
kPa
inch water column
Natural Gas
217
217,200
246
246,000
256
255,900
0.9 ‐ 3.0
3.5 ‐ 12
Propane
85
213,100
100
250,700
108
270,100
1.5 ‐ 3.0
6 ‐ 12
Note: Maximum pressure for either fuel under any condition: 3.2 kPa (13 inch water column)
Natural Gas and LP Vapor Fuel System Checklist
Verify that the generator set is configured to the fuel being used. (See the generator set installation manual.)
Verify that the fuel line has proper volume capability.
Verify that the fuel pressure is
correct:
• Natural gas: 0.9 ‐ 3.0 kPa (3.5 ‐ 12 in water column)
• Propane: 1.5 ‐ 3.0 kPa (6 ‐ 12 in water column)
Verify the fuel pressure at the generator set connection does not drop below the range listed above during startup
and full load operation and does not exceed 3.2 kPa (13 in water column).
Verify that all fuel connections are tight.
Manual Fuel Selection Valve (exhaust panel removed)
Remove two access cover screws to gain access to valve.
(See Installation Manual (A062J678) for how to set valve.)
Generator Config Menu