Fuel Consumption; Reconfiguring The Fuel System - Generac Power Systems 8 KVA Manual Del Usario

General Information
1.8

FUEL CONSUMPTION

Nat. Gas
Unit
(NG/LP)
1/2 Load
7/8 KVA 77
10/10 KVA 152
13/13 KVA 156
* Natural gas is in cubic feet per hour.
** LP is in gallons per hour/cubic feet per hour.
*** Values given are approximate.
Verify that gas meter is capable of providing enough fuel flow to
include household appliances.
1.9.1 BTU FLOW REQUIREMENTS - NATURAL GAS
BTU flow required for each unit based on 1000 BTU per cubic
foot.
• 7 KVA — 140,000 BTU/Hour
• 10 KVA — 215,000 BTU/Hour
• 13 KVA — 220,000 BTU/Hour

 Gaseous fuels such as natural gas and liquid
propane (LP) gas are highly explosive. Even
the slightest spark can ignite such fuels and
cause an explosion. No leakage of fuel is
permitted. Natural gas, which is lighter than
air, tends to collect in high areas. LP gas is
heavier than air and tends to settle in low
areas.
A minimum of one approved manual shut-off valve must be
installed in the gaseous fuel supply line. The valve must be eas-
ily accessible. Local codes determine the proper location.
1.9 RECONFIGURING THE FUEL
SYSTEM
To reconfigure the fuel system from NG to LP , follow these steps:
The primary regulator for the propane supply is NOT INCLUDED
with the generator. A fuel pressure of 10 to 12 inches of water
column (0.36 to 0.43 psi) to the fuel inlet of the generator MUST
BE SUPPLIED.
1. Open the roof.
2. For 8 KVA units: Loosen clamp and slide back the air inlet
hose.
• Slide fuel selector on carburetor out towards the back of the
enclosure (Figures 1.3 and 1.4).
• Return the inlet hose and tighten clamp securely.
For 10 and 13 KVA units: remove the air cleaner cover.
• Slide the selector lever out towards the back of the enclosure
(Figures 1.5 and 1.6).
6
LP Vapor
Full Load 1/2 Load Full Load
140 0.94/34
215 1.53/56
220 1.55/57
NOTE:
NOTE:
• Return the air cleaner cover and tighten the two thumb
screws.
3. Close the roof.
4. Reverse the procedure to convert back to natural gas.
1.68/62
Figure 1.3 - 8 KVA, GT-530 (Inlet Hose Slid Back)
2.08/76
2.18/80
Fuel Selection
Lever - "In"
Position for
Natural Gas
Fuel
Figure 1.4 - 8 KVA, GT-530 (Inlet Hose Slid Back)
Fuel Selection
Lever - "Out"
Position for
Liquid Propane
(Vapor) Fuel
Fuel Selection Lever - "In" Position for Natural Gas Fuel
Figure 1.5 - 10 & 13 KVA,
GT-990 (Airbox Cover Removed)