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Table of Contents
Guardian Air-cooled Generators
Generac® Power Systems, Inc. 1
Introduction ......................Inside Front Cover
Read This Manual Thoroughly ......................IFC
Operation and Maintenance............................IFC
How to Obtain Service....................................IFC
Authorized Dealer Location Number..................IFC
Safety Rules ......................................................2
Section 1 – Installation ..................................4
1.1 Introduction to Installation ..........................4
1.1.1 Installation Assistance......................4
1.1.2 Standards Index ..............................4
1.2 Unpacking....................................................4
1.2.1 Precautions ......................................4
1.2.2 Inspection ........................................4
1.3 Before Installation........................................5
1.4 Lifting the Generator....................................5
1.5 Engine Oil Recommendations ......................5
1.6 Gaseous Fuel System ..................................5
1.6.1 Fuel System Requirements
and Recommendations ....................5
1.6.2 Fuel Consumption............................6
1.6.3 Fuel Pipe Sizing................................6
1.6.4 Reconfiguring the Fuel System ........6
1.7 Location and Mounting ................................7
1.7.1 Generator ........................................7
1.7.1.1 6 kW, 8 kW and
10 kW Units (Non-SA) ......7
1.7.1.2
Sound Attenuated Units
....7
1.7.2 Transfer Switch................................7
1.7.2.1 6 Kw, 8 kW and
10 kW Units (Non-SA) ......7
1.7.2.2 Sound Attenuated Units ....7
1.8 Emergency Circuit Isolation Method ..........11
1.9 Total Circuit Isolation Method....................11
1.10 Generator AC Connection System..............12
1.11 Wiring Interconnections ..............................12
1.11.1 6 kW, 8 kW and
10 kW Units (Non-SA)....................12
1.11.2 Sound Attenuated Units ................12
1.12 Generators and GTS Transfer Switches ....14
1.13 Control Circuit Interconnections................14
1.14 Adapting Three-phase Transfer Switch......15
1.15 Control Board Configuration......................15
1.16 Grounding the Generator ..........................15
1.17 The Battery.................................................16
1.17.1 Battery Installation ........................17
1.18 The Fuse.............. ......................................17
1.19 Post Installation Inspection ........................17
Section 2 – Operation ..................................18
2.1 Using the Auto/Off/Manual Switch..............18
2.1.1 “Auto” Position................................18
2.1.2 “Off” Position..................................18
2.1.3 “Manual” Position ..........................18
2.2 Automatic Transfer Operation....................18
2.3 Sequence of Automatic Operation ..............19
2.4 Manual Transfer Operation........................19
2.4.1 Transfer to Generator
Power Source ..................................19
2.4.2 Transfer Back to Utility
Power Source ..................................20
2.5 Protection Systems ....................................20
2.5.1 Low Oil Pressure Switch ................20
2.5.2 High Temperature Switch ..............20
2.5.3 Overcrank ......................................20
2.5.3.1 Approximate Crank
Cycle Times ....................21
2.5.4 Overspeed ......................................21
2.6 Additional Generator Features ..................21
2.6.1 6 kW, 8 kW and
10 kW Units (Non-SA)....................21
2.6.2 Sound Attenuated Units ................21
Section 3 – Post-installation Start-up
Adjustments..............................22
3.1 Before Initial Start-up ................................22
3.2 Check Transfer Switch Operation ..............22
3.3 Electrical Checks ......................................22
3.4 Generator Tests Under Load......................22
3.5 Checking Automatic Operation ..................23
3.6 Adjusting the Load Block ..........................23
3.7 Engine Governor Adjustment ....................24
3.7.1 6 kW Units (Non-SA)......................24
3.7.2 8 kW and 10 kW Units (Non-SA)....24
3.7.3 Sound Attenuated Units ................25
3.8 Voltage Regulator Adjustment ....................25
3.9 Overspeed Calibration................................25
3.9.1 6 kW, 8 kW and
10 kW Units (Non-SA)....................26
3.9.2 Sound Attenuated Units ................26
3.10 Setting the Exercise Timer ........................26
3.10.1 6 kW, 8 kW and
10 kW Units (Non-SA)....................26
3.10.2 Sound Attenuated Units ................26
Section 4 – Troubleshooting ......................27
4.1 Troubleshooting Guide ..............................27
4.2 Installation Checklist ................................28
Section 5 – Notes ..........................................29