Section 5: Fuel Conversion/Gas Connections; Fuel Requirements And Recommendations; Fuel Conversion; Installation Wizard - Honeywell HSB Y12 Guia De Instalacion

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Section 5: Fuel Conversion/Gas Connections

Fuel Requirements and
Recommendations
DANGER
NOTE: Natural gas is lighter than air and will collect in
high areas. LP gas is heavier than air and will settle in
low areas.
LP gas should only use a vapor withdrawal system. This
type of system uses the vapors formed above the liquid
fuel in the storage tank.
The unit will run on natural gas or LP gas, but has been
configured at the factory to run on natural gas.
NOTE: Should the primary fuel need to be changed to
LP gas, the fuel system needs to be reconfigured. See
the

Fuel Conversion

converting the fuel system.
Recommended fuels should have a BTU content of at
3
least 1,000 BTU/ft
(37.26 MJ/m
3
least 2,500 BTU/ft
(93.15 MJ/m
NOTE: BTU fuel content information is available from the
fuel supplier.
Required fuel pressure for natural gas is 3.5-7 inches
water column (7-13 mm mercury). Required fuel pressure
for liquid propane vapor is 10-12 inH
NOTE: The primary regulator for the propane supply is
NOT INCLUDED with the generator.
NOTE: All pipe sizing, construction and layout must
comply with NFPA 54 for natural gas applications and
Installation Guidelines For 60 Hz Air-cooled Generators
(000192)
section for instructions on
3
) for natural gas; or at
3
) for LP gas.
O (19-22 mmHG).
2
B
Figure 5-1. Fuel Conversion Knob Locations
Section 5: Fuel Conversion/Gas Connections
NFPA 58 for liquid propane applications. Once the
generator is installed, verify fuel pressure NEVER drops
below the required specification. For further information
regarding NFPA requirements refer to the NFPA website
at www.nfpa.org.
Always consult local fuel suppliers or the fire marshal to
check codes and regulations for proper installation. Local
codes will mandate correct routing of gaseous fuel line
piping around gardens, shrubs, and other landscaping.
Piping strength and connections should be given special
consideration when installation takes place in areas at
risk for; flooding, tornadoes, hurricanes, earthquakes,
and unstable ground.
IMPORTANT NOTE: Use an approved pipe sealant or
joint compound on all threaded fittings.
NOTE: All installed gaseous fuel piping must be purged
and leak tested prior to initial start-up in accordance with
local codes, standards and regulations.
Fuel Conversion
Converting from natural gas configuration to LP vapor
can be accomplished with the following procedure. See
Figure 5-1
for fuel conversion knob locations.
NOTE: The fuel selection (LP/NG) must be updated, on
the controller, during initial power up using the

Installation Wizard

in the navigation menu.
NOTE: The orange fuel conversion knob (A) is located
on the top of the fuel mixer on V-twin engines (B) and
under the fuel mixer on single cylinder engines (C).
To select the fuel type, turn the valve towards the marked
fuel source arrow until it stops. Fuel knob will rotate 180°
and slide into the mixer body when converting to LP.
A
C
000615
17

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