Table of Contents
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®
POWER SYSTEMS, INC.
Installation, Start-up
and Adjustment Manual
Air-cooled, Prepackaged
Standby Generators
Models:
Nonsound Attenuated (Non-SA)
04077-1 (6 kW)
04109-1 (8 kW)
04079-1 (10 kW)
Sound Attenuated (SA)
00789-1 (8 kW)
00844-1 (8 kW)
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS
SHOULD ATTEMPT INSTALLATION!!
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Table of Contents
Related Manuals for Generac Power Systems 04077-01, 04109-1, 04079-1, 00789-1, 00844-1
Summary of Contents for Generac Power Systems 04077-01, 04109-1, 04079-1, 00789-1, 00844-1
- Page 1 ® POWER SYSTEMS, INC. Installation, Start-up and Adjustment Manual Air-cooled, Prepackaged Standby Generators Models: Nonsound Attenuated (Non-SA) 04077-1 (6 kW) 04109-1 (8 kW) 04079-1 (10 kW) Sound Attenuated (SA) 00789-1 (8 kW) 00844-1 (8 kW) ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION!!
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Page 2: Introduction
INTRODUCTION Thank you for purchasing a model of the Guardian product line by Generac Power Systems Inc. These models are compact, high performance, air-cooled, engine-driven generators designed to automatically supply electrical power to operate critical loads dur- ing a utility power failure. -
Page 3: Table Of Contents
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 Troubleshooting Guide ...27 Installation Checklist ...28 Section 5 – Notes ...29 Generac® Power Systems, Inc. -
Page 4: Safety Rules
Many accidents are caused by failing to follow simple and fundamental rules or precautions. Generac cannot possibly anticipate every possible cir cumstance that might involve a hazard. The warn- ings in this manual, and on tags and decals affixed to the unit are, therefore, not all-inclusive. -
Page 5: Electrical Hazards
Before placing the home stand- by electric system into service, fuel system lines must be properly purged and leak tested according to applicable code. After installation, you must inspect the fuel system periodically for leaks. No leakage is permitted. Generac ® Power Systems, Inc. -
Page 6: Section 1 - Installation
Ensure that the model number of the unit being installed matches a model on the front cover. Generac cannot possibly know of and advise the home standby trade of all conceivable procedures and meth- ods by which installation of this equipment might be achieved. -
Page 7: Before Installation
The flexible hose must be approved for use with gaseous fuels. It is rec- ommended that an emergency manual fuel shutoff valve be placed in-line. Generac ® Power Systems, Inc. -
Page 8: Fuel Consumption
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. Generac ® Power Systems, Inc. 1.6.3 FUEL PIPE SIZING See the following chart for proper sizing of fuel supply piping. -
Page 9: Location And Mounting
• Protect the switch at all times against excessive moisture, dust, dirt, lint, construction grit and corrosive vapors. 1.7.2.2 Sound Attenuated Units All sound attenuated models have a transfer switch built into the enclosure and do not require a separate switch attachment. Generac ® Power Systems, Inc. - Page 10 Section 1 — Installation Guardian Air-cooled Generators Figure 1.4 – Generator and Transfer Switch Mounting Dimensions (6 kW, 8 kW and 10 kW Non-SA) Generac ® Power Systems, Inc.
- Page 11 Section 1 — Installation Guardian Air-cooled Generators Figure 1.4 (Continued) Generac ® Power Systems, Inc.
- Page 12 Section 1 — Installation Guardian Air-cooled Generators Figure 1.5 – Generator Mounting Dimensions (Sound Attenuated) 10 Generac ® Power Systems, Inc.
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Page 13: Emergency Circuit Isolation Method
All wiring must conform to the National Electrical Code, and all state and local codes. Consult a quali- fied, licensed electrician. The above illustration assumes the utility is supply- ing 120/240-volt, single-phase electrical service. Generac ® Power Systems, Inc. 11... -
Page 14: Generator Ac Connection System
240-volt, 60-Hertz AC output results. Stator AC out- put leads 11 and 44 are the two “hot” leads; the junc- tion of leads 22 and 33 forms the neutral lead. Figure 1.8 – Generator AC Connection System 12 Generac ® Power Systems, Inc. 1.11 WIRING INTERCONNECTIONS... - Page 15 Section 1 — Installation Guardian Air-cooled Generators Figure 1.9 – Interconnection Diagram for Single-Phase Power System (6 kW, 8 kW and 10 kW Non-SA) Figure 1.10 – Interconnection Diagram for Single-Phase Power System (Sound Attenuated) Generac ® Power Systems, Inc. 13...
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Page 16: Generators And Gts Transfer Switches
Automatic operation for Guardian generators installed with prepackaged transfer switches is controlled by a control module circuit board in the control panel. Refer to the “Operation” section of this manual. 14 Generac ® Power Systems, Inc. 1.13 CONTROL CIRCUIT INTERCONNECTIONS... -
Page 17: Adapting Three-Phase Transfer Switch
(electrode) will adequately ground the generator. However, local codes may vary widely. Consult with a local electrician for grounding requirements in your area. Figure 1.13 – Grounding the Generator Generac ® Power Systems, Inc. 15... -
Page 18: The Battery
• Do not lay tools or metal parts on top of the battery; and • Disconnect charging source prior to connecting or dis- connecting battery terminals. 16 Generac ® Power Systems, Inc. Do not open or mutilate the battery. Released electrolyte has been known to be harmful to the skin and eyes, and to be toxic. -
Page 19: Battery Installation
1.19 POST INSTALLATION INSPECTION Before placing the home standby electrical system into service, inspect the entire installation carefully. Some areas may require that an inspection be per- formed by a building or electrical inspector. Generac ® Power Systems, Inc. 17... -
Page 20: Section 2 - Operation
“Do Not Operate” tag on the generator panel and on the transfer switch. Figure 2.1 – Generator Control Panel (6 kW, 8 kW, 10 kW Non-SA) 18 Generac ® Power Systems, Inc. Figure 2.2 – Generator Control Panel... -
Page 21: Sequence Of Automatic Operation
“Standby” position, i.e., loads connected to the standby power source (Figure 2.3). 5. Turn ON the utility power supply to the transfer switch using the means provided (such as a utility main line circuit breaker). Generac ® Power Systems, Inc. 19... -
Page 22: Transfer Back To Utility Power Source
1. Low Oil Pressure Sensor 2. High Temperature Sensor 3. Overcrank 4. Overspeed 20 Generac ® Power Systems, Inc. On sound attenuated models, there are LED read- outs on the control panel to notify you that one of these faults has occurred. -
Page 23: Approximate Crank Cycle Times
Figure 2.5 – Remote Start/Alarm Options –Type 14 AWG wire is recommended. –These options should be wired to the unit by a qualified electrician or Generac/Guardian Authorized Dealer. Section 2 — Operation Guardian Air-cooled Generators 2. Remote/Common Alarm – This allows for an alarm, light, horn, etc., to activate when any fault... -
Page 24: Section 3 - Post-Installation Start-Up Adjustments
3. Check utility power source voltage across termi- nals N1 and the transfer switch neutral lug; then across terminal N2 and neutral. Nominal line-to- neutral voltage should be 120 volts AC. 22 Generac ® Power Systems, Inc. 4. When certain that utility supply voltage is com-... -
Page 25: Checking Automatic Operation
Factory settings are correct for most applica- tions. However, when making adjustments, be careful to avoid overspeeding the engine. 120 Volts 240 Volts 50 amps 25 amps 66.7 amps 33.3 amps 83.3 amps 41.6 amps 66.7 amps 33.3 amps Generac ® Power Systems, Inc. 23... -
Page 26: Engine Governor Adjustment
AC voltage reading. If voltage is incorrect, the volt- age regulator may require adjustment. Figure 3.1 – 6 kW Engine Governor Adjustment 24 Generac ® Power Systems, Inc. 3.7.2 8 KW AND 10 KW UNITS (NON-SA) 1. Loosen the governor clamp bolt (Figure 3.2). -
Page 27: Sound Attenuated Units
OVERSPEED ADJUSTMENT 3.9.1 6 KW, 8 KW AND 10 KW UNITS (NON-SA) 3.9.2 SOUND ATTENUATED UNITS clockwise.* speed setting to 72 Hertz (62 Hertz for 50 Hertz rated units). *NOTE: the engine shuts down. Generac ® Power Systems, Inc. 25 maintains... -
Page 28: Kw, 8 Kw And 10 Kw Units (Non-Sa)
The exerciser will need to be reset every time the 12-volt battery is disconnected and then reconnected. The exerciser WILL NOT work if dip switch 2 (Remote Not Auto) is ON. 26 Generac ® Power Systems, Inc. 3.10.2 SOUND ATTENUATED UNITS The generator will start and exercise once every seven days. -
Page 29: Section 4 - Troubleshooting
1. Switch dip switch 2 on control board if utility is not available. Check all connections if utility should be present. 2. Replace switch. 1. Correct failure. 2. Switch to the OFF position if desired. Generac ® Power Systems, Inc. 27... -
Page 30: Installation Checklist
LOCATION Unit is fastened to the appropriate mounting pad. Louvers are free from obstruction. Exhaust is clear of flammable objects and debris. 28 Generac ® Power Systems, Inc. ELECTRICAL CONNECTIONS Complies with local code requirements and all National Electrical Codes. -
Page 31: Section 5 - Notes
Section 5 — Notes Guardian Air-cooled Generators Generac ® Power Systems, Inc. 29... - Page 32 GENERAC ® POWER SYSTEMS, INC. P.O. BOX 8 WAUKESHA, WI 53187 Part No. C4219 Revision * (12/13/99) Printed in U.S.A.