Installing And Connecting Gas Lines - Generac G0062700 Directrices De Instalación

Fuel Conversion/Gas Connections
Installing and Connecting Gas
Lines
1. Both natural gas and LP Vapor are highly volatile
substances, so strict adherence to all safety
procedures, codes, standards and regulations is
essential.
Gas line connections should be made by a certified
plumber familiar with local codes. Always use
AGA-approved gas pipe and a quality pipe sealant
or joint compound. The flex fuel line should be
plumbed parallel to the back of the generator.
Verify the capacity of the natural gas meter or the
LP tank in regards to providing sufficient fuel for
both the generator and other operating appliances.
• Fuel Regulator installed per laws or regulator
manufacturer's specifications
• AGA approved gas pipe
• Flexible fuel line
– Do not install vertically.
– Do not bend!
– Do not attach directly to generator.
– Check all connections for leaks.
• Recommended sediment trap (required by some
local codes)
• Full flow rated shut-off near generator per local
jurisdiction or code
2. Most applications will require an external manual
full flow shutoff valve on the fuel line.
Figure 5-2. Accessory Valve with Manometer Port
NOTE: Figure 5-2 illustrates a fuel shut-off valve with a
manometer port for making fuel pressure checks. This
accessory valve permits making pressure checks without
going into the generator enclosure.
Valves available through Generac and independent
authorized dealers:
• 1/2 in. ball valve, part number 0K8752
• 3/4 in. ball valve, part number 0K8754
• 1 in. ball valve, part number 0K8184
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3. When connecting the gas line to the generator, use
a hose assembly that meets the requirements of
ANSI Z21.75/ CSA 6.27—Connectors for Outdoor
Gas Appliances and Manufactured Homes or AGA-
approved flexible fuel line in accordance with local
regulations. See A in
the flexible fuel line is to ensure that vibration from
the generator does not cause a gas leak at one of
the connection points. It is important that the line be
installed with as few bends as possible. Install the
recommended sediment trap (required by some
local codes) and fuel shut off valve as illustrated (B
and C in
Equipment damage. Do not bend flexible fuel line.
Bends in fuel line restrict fuel flow and reduce
ability to absorb vibration.
4. Check for leaks by spraying all connection points
with a non-corrosive gas leak detection fluid. You
should not see the solution be blown away or form
bubbles.
000743
5. Check the gas pressure at the regulator in the
generator by following these steps.
• Close gas supply valve.
• Remove the top gas pressure test port from the
regulator (see
pressure tester (manometer).
• Open the gas supply valve and ensure that the
pressure is within the specified values.
NOTE: Gas pressure can also be tested at the
manometer port on the fuel shut-off valve shown in
Figure
Installation Guidelines For 50 Hz Air-Cooled Generators
Figure
Figure 5-3).
Figure 5-3. Sediment Trap
CAUTION
Figure 5-4) and install the gas
5-2.
5-3. The purpose of
C
A
B
000617
(000205)