Kohler 14/20RESAL 설치 매뉴얼 - 페이지 17

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Kohler 14/20RESAL 설치 매뉴얼

1.6 Fuel Requirements

The generator set operates using natural gas or LP
vapor fuel. The generator set is EPA-certified for both
natural gas and LP vapor fuels.
The fuel system installation must comply with the NEC
and local codes.
1.6.1

Fuel Supply

Because of variable climates and geographical
considerations, contact the local fuel supplier for fuel
system planning and installation. Figure 1-8 lists the
recommended fuel ratings and other fuel supply
information for natural gas and LP vapor fuels.
Fuel type
Fuel supply inlet
Fuel supply pressure,
kPa (in. H
O)
2
Fuel flow rate, maximum, Btu/hr.:
14RESA/RESAL
20RESA/RESAL
Nominal Fuel Rating, Btu/ft.
Natural gas
LP vapor
Figure 1-8 Fuel Supply
Verify that the output pressure from the primary gas
utility pressure regulator is as shown in Figure 1-8 and
that the utility gas meter flow rate is sufficient to supply
the generator set at rated load plus all other
gas-consuming appliances. For LP tanks, verify that the
Fuel Type
% Load
100%
75%
Natural Gas
50%
25%
100%
75%
LP Vapor
50%
25%
LP vapor conversion factors:
3
8.58 ft.
= 1 lb.
3
0.535 m
= 1 kg
3
36.39 ft.
= 1 gal.
Figure 1-10 Fuel Consumption
TP-6803 12/11
Natural
LP
Gas
Vapor
1/2 NPT
1.3--2.7
1.7--2.7
(5--11)
(7--11)
193,000
203,000
281,000
340,000
3
1000
2500
14RESA/RESAL
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:
Natural gas:
LP vapor:
output pressure is as shown in Figure 1-8.
Figure 1-10 for fuel consumption.
supplier for flow rate information or a gas meter
upgrade.
The dimension drawing in Section 1.5 shows the
location of the fuel inlet connection.
sections to prevent fuel line breakage caused by
vibration. Hold the fuel solenoid valve with a wrench
when tightening the fuel connections. Protect all fuel
lines from machinery or equipment contact, adverse
weather conditions, and environmental damage.
1.6.2

Fuel Pipe Size

Ensure that the fuel pipe size and length meet the
specifications in Figure 1-9. 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 1-9 to find the required pipe size.
Contact local LP provider for LP installation information.
Minimum Gas Pipe Size Recommendation, in. NPT
14RESA/RESAL
Natural
Pipe
Gas
Length,
(193,000
m (ft.)
Btu/hr.)
8
(25)
3/4
15
(50)
1
30 (100)
1
46 (150)
1 1/4
61 (200)
1 1/4
Figure 1-9 Fuel Pipe Size Recommendations
Fuel Consumption, m
50 Hz
4.9
(175)
4.2
(148)
3.1
(108)
2.4
(84)
2.1
(74)
1.9
(68)
1.5
(53)
1.1
(40)
3
3
37 MJ/m
(1000 Btu/ft.
)
3
3
93 MJ/m
(2500 Btu/ft.
)
Contact the fuel
Use flexible
20RESA/RESAL
Natural
LP Vapor
Gas
(203,000
(281,000
Btu/hr.)
Btu/hr.)
3/4
1
3/4
1
1
1 1/4
1
1 1/4
1
1 1/4
3
/hr. (cfh)
20RESA/RESAL
60 Hz
50 Hz
8.0
(281)
6.4
6.9
(243)
5.4
4.6
(161)
3.9
3.6
(127)
2.9
3.9
(136)
2.9
3.1
(109)
2.4
2.3
(82)
1.8
1.7
(59)
1.3
Section 1 Installation
See
LP Vapor
(340,000
Btu/hr.)
3/4
1
1
1 1/4
1 1/4
(225)
(189)
(139)
(103)
(102)
(85)
(63)
(47)
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