Generac Power Systems 0K8420-A Installation Manuallines page 4

Table of Contents

4.1 General ................................................................................................................................15

4.2 Outdoor Installation Only ..................................................................................................15

Section 5 Gaseous Fuel Systems

5.1 General ................................................................................................................................17

5.1.1 Fuel System Conversion .......................................................................................................................... 17

5.2 Gaseous Fuel Properties ...................................................................................................17

5.2.1 Natural Gas ................................................................................................................................................ 17

5.2.2 Propane Vapor (LPV) ................................................................................................................................ 17

5.3 Gaseous Fuel Systems ......................................................................................................17

5.3.1 Natural Gas System .................................................................................................................................. 17

5.3.2 LP-Vapor Withdrawal System .................................................................................................................. 18

5.3.3 Drip Leg ..................................................................................................................................................... 19

5.4 Fuel Pressure Regulators ..................................................................................................19

5.4.1 General ...................................................................................................................................................... 19

5.4.2 Definitions ................................................................................................................................................. 20

5.4.3 Best Practices ........................................................................................................................................... 20

5.4.4 Operating Fuel Pressure .......................................................................................................................... 21

5.4.5 Engine Fuel Consumption ....................................................................................................................... 21

5.4.6 Fuel Pressure Regulator Sizing ............................................................................................................... 21

5.4.7 Recommended Fuel Pressure Regulators ............................................................................................. 22

5.4.8 Primary Fuel Pressure Regulator ............................................................................................................ 22

5.5 Pipe Sizing Considerations ...............................................................................................22

5.5.1 General ...................................................................................................................................................... 22

5.5.2 Sizing LP Tanks for Vapor Withdrawal ................................................................................................... 24

5.6 Final Operating Test ...........................................................................................................26

5.6.1 Gas Pressure Test Port Location ............................................................................................................ 26

5.6.2 Final Test Procedure ................................................................................................................................ 27

Section 6 Electrical System

6.1 General Information ...........................................................................................................29

6.2 Remove Rear Panel and Stub Up Cover ...........................................................................29

6.3 Wiring Installation Safety ...................................................................................................29

6.4 General Wiring Requirements ...........................................................................................29

6.5 High Voltage Connections .................................................................................................29

6.6 Control Wiring Connections ..............................................................................................32

6.6.1 RTS Series Transfer Switch With T1 Fuse/Connection ......................................................................... 32

6.6.2 RTS Series Transfer Switch Without T1 Fuse/Connection ................................................................... 33

6.6.3 Two-Wire Start .......................................................................................................................................... 33

Installation Guidelines for Spark-Ignited Stationary Emergency Generators

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