Fuel Pipe Size; Connecting The Fuel Supply - Kohler 14/20RESA Manual Del Usuario

1.7.2

Fuel Pipe Size

Ensure that the fuel pipe size and length meet the
specifications in Figure 1-7. 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 1-7 to find the required pipe size.
Contact local LPG provider for LPG installation
information.
Minimum Gas Pipe Size Recommendation, in. NPT
14RESA/RESAL
Natural
Pipe
Gas
Length,
(193,000 (203,000
m (ft.) Btu/hr.) Btu/hr.)
8 (25) 3/4
15 (50) 1
30 (100) 1
46 (150) 1 1/4
61 (200) 1 1/4
Figure 1-7 Fuel Pipe Size Recommendations
1.7.3

Connecting the Fuel Supply

The dimension drawing in Section 2 shows the location
of the fuel inlet connection. Have the fuel supplier install
rigid gas piping and a manual fuel shut-off valve. The
fuel supply line should line up with the generator set fuel
inlet and end about 12 inches away to allow connection
with a section of flexible fuel line. Use flexible sections to
prevent fuel line breakage caused by vibration.
Note: Do not bend the flexible fuel line to make up for
misalignment of the fuel supply line and the
generator set fuel inlet.
TP-6803 1/15
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20RESA/RESAL
Natural
LPG LPG
Gas
(281,000 (340,000
Btu/hr.) Btu/hr.)
3/4 1 3/4
3/4 1 1
1 1 1/4 1
1 1 1/4 1 1/4
1 1 1/4 1 1/4
Apply pipe sealant that is approved for fuel connections.
Hold the fuel solenoid valve with a wrench when
tightening the fuel connections.
Note: Do not hold the fuel solenoid valve coil when
tightening the fuel connections. See Figure 1-8
for the recommended wrench locations.
1
1. Hold valve with wrench on flats of valve body
2. Alternate wrench location
Figure 1-8 Holding Fuel Valve to Tighten Fuel
Connections
Open the manual fuel valves and test all fuel
connections using soapy water. If a leak is found, close
the fuel valves, clean the fittings, and apply fresh
sealant. Check for fuel leaks again with the generator
set running.
Protect all fuel lines from machinery or equipment
contact, adverse weather conditions, and environmental
damage.
Note: Do NOT hold the valve
coil when tightening
connections.
IMG_0351
2
Section 1 Installation 15