Kohler 18RESNT Manual de instalación - Página 19
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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 1-10 lists the
recommended fuel ratings and other fuel supply
information for natural gas and LP vapor fuels.
Fuel types
Fuel supply inlet
Fuel supply pressure,
kPa (in. H
O), 12 kW
2
Fuel supply pressure,
kPa (in. H
O), 17/18 kW
2
Fuel flow rate, Btu/hr.,
12 kW
Fuel flow rate, Btu/hr.,
17/18 kW
Nominal Fuel Rating, Btu/ft
Natural gas
LP vapor
Figure 1-10 Fuel Supply
Verify that the output pressure from the primary gas
utility (or LP tank) pressure regulator is within the range
shown in Figure 1-10 and that the utility gas meter flow
rate is sufficient to supply the generator set at rated load
plus all other gas-consuming appliances.
Figure 1-11 or Figure 1-12 for fuel consumption.
Contact the fuel supplier for flow rate information or a
gas meter upgrade.
See Figure 1-2 or Figure 1-4 for the location of the fuel
inlet connection. Use flexible sections to prevent fuel
line breakage caused by vibration.
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.
TP-6516 4/09
Natural Gas
LP Vapor
1/2 NPT
1.3--2.7 (5-11)
1.7--2.7 (7-11)
1.7--2.7 (7-11)
193000
203000
242000
280000
3
1000
2500
Hold the fuel
Fuel Consumption at % Rated Load
Natural Gas, m
100%
75%
50%
25%
3
LP Vapor, m
/hr. (cfh)
100%
75%
50%
25%
LP vapor conversion factors:
3
8.58 ft.
= 1 lb.
3
0.535 m
= 1 kg
3
36.39 ft.
= 1 gal.
Nominal fuel rating:
Natural gas:
LP vapor:
Figure 1-11 Fuel Consumption, 12 kW Models
Fuel Consumption at % Rated Load
Natural Gas, m
100%
75%
50%
25%
3
LP Vapor, m
/hr. (cfh)
100%
75%
50%
25%
LP vapor conversion factors:
3
8.58 ft.
= 1 lb.
3
0.535 m
= 1 kg
3
36.39 ft.
= 1 gal.
Nominal fuel rating:
Natural gas:
See
LP vapor:
Figure 1-12 Fuel Consumption, 17/18 kW Models
3
/hr. (cfh)
5.9 (209)
4.8 (168)
3.6 (127)
2.4
3.1 (108)
2.5
1.9
1.2
3
3
37 MJ/m
(1000 Btu/ft.
)
3
3
93 MJ/m
(2500 Btu/ft.
)
3
/hr. (cfh)
6.9 (242)
5.8 (204)
4.4 (155)
3.4 (120)
3.2 (112)
2.7
2.1
1.6
3
3
37 MJ/m
(1000 Btu/ft.
)
3
3
93 MJ/m
(2500 Btu/ft.
)
Section 1 Installation
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