Fuel Pipe Size - Kohler 14RCAL Installation Manual

Fuel Type % Load
100%
75%
Natural
Gas
50%
25%
100%
75%
LPG
50%
25%
LPG conversion factors:
3
8.58 ft. = 1 lb.
3
0.535 m = 1 kg
36.39 ft.3 = 1 gal.
Figure 9 Fuel Consumption
2.1.2

Fuel Pipe Size

Ensure that the fuel pipe size and length meet the specifications in Figure 10. Measure the pipe length from the primary gas
pressure regulator to the pipe connection on the generator set fuel inlet. Add 2.4 m (8 ft.) to the measured length for each
90-degree elbow. Compare the total pipe length with the chart in Figure 10 to find the required pipe size.
Contact the local LPG provider for LPG installation information.
Pipe Length,
Natural Gas
m (ft.)
(193,000 Btu/hr.)
8 (25)
15 (50)
30 (100)
46 (150) 1 ¼
61 (200) 1 ¼
Figure 10 Fuel Pipe Size Recommendations
22
Fuel Consumption, m
14RCA/RCAL
60 Hz
5.4 (193)
4.7 (163)
3.5 (124)
2.6 (93)
2.3 (81)
2.1 (75)
1.8 (60)
1.2 (45)
Nominal fuel rating:
3
Natural gas: 37 MJ/m (1000 Btu/ft.
3
LPG: 93 MJ/m (2500 Btu/ft.
Minimum Gas Pipe Size Recommendation, in. NPT
14RCA/RCAL
LPG
(203,000 Btu/hr.)
¾ ¾
1 ¾
1 1
1
1
3
/hr. (cfh)
18RCAL 20RCA/RCAL
60 Hz 60 Hz
7.6 (268) 8.0 (281)
6.2 (219) 6.9 (243)
4.4 (155) 4.6 (161)
3.5 (123) 3.6 (127)
3.6 (127) 3.9 (136)
2.9 (102) 3.1 (109)
2.2 (78) 2.3 (82)
1.6 (57) 1.7 (59)
3
)
3
)
18RCA/RCAL
Natural Gas LPG
(268,000 Btu/hr.) (318,000 Btu/hr.)
1 ¾
1 1
1 ¼ 1
1 ¼ 1 ¼
1 ¼ 1 ¼
20RCA/RCAL
Natural Gas LPG
(281,000 Btu/hr.) (340,000 Btu/hr.)
1 ¾
1 1
1 ¼ 1
1 ¼ 1 ¼
1 ¼ 1 ¼
TP-7091 11/22