Generac Power Systems 7 kW NG Installation Manuallines
  1. Manuals
  2. Brands
  3. Generac Power Systems Manuals
  4. Portable Generator
  5. 7 kW NG
  6. Installation manuallines
Generac Power Systems 7 kW NG Installation Manuallines

Generac Power Systems 7 kW NG Installation Manuallines

Air-cooled generators. single-cylinder gh-410 engine; v-twin gt-530 engine; v-twin gt-990 engine; v-twin gt-999 engine
Hide thumbs Also See for 7 kW NG:
Table of Contents

Advertisement

Quick Links

See also: Repair Manual , Installation Manuallines
INSTALLATION
GUIDELINES
Air-cooled Generators

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the 7 kW NG and is the answer not in the manual?

Questions and answers

Related Manuals for Generac Power Systems 7 kW NG

Summary of Contents for Generac Power Systems 7 kW NG

  • Page 1 INSTALLATION GUIDELINES Air-cooled Generators...

  • Page 2: Table Of Contents

    TABLE OF CONTENTS INTRODUCTION Thank you for purchasing this compact, high performance, air- Introduction ............Inside Front Cover cooled, engine-driven generator. It is designed to automatically Read this Manual Thoroughly ..........IFC supply electrical power to operate critical loads during a utility Contents ................1 power failure.

  • Page 3: Contents

     Despite the safe design of this generator, • 7 kW NG, 8 kW LP , single-cylinder GH-410 Engine operating this equipment imprudently, neglect- • 9 kW NG, 10 kW LP , V-twin GT-530 Engine ing its maintenance or being careless can cause •...

  • Page 4: Fire Hazards

    • Never wear jewelry when working on this equipment. Jewelry can   conduct electricity resulting in electric shock, or may get caught in GENERAL HAZARDS moving components causing injury. For safety reasons, the manufacturer recommends that this •  ...

  • Page 5: Standards Index

    STANDARDS INDEX If any loss or damage is noted at time of delivery, have the person(s) making the delivery note all damage on the freight bill In the absence of pertinent standards, codes, regulations and or affix their signature under the consignor’s memo of loss or laws, the published information listed below may be used as damage.

  • Page 6: Emission Information

    Section 210.12 requires that AFCI protection be provided on Displacement Category Compliance Period branch circuits that supply outlets (receptacle, lighting, etc.) in dwelling bedrooms. The requirement is limited to 15 and 20 300 Hours ampere, 125 volt circuits. There is no prohibition against providing <...

  • Page 7: Coverting To Lp Vapor

    5. Set the generator onto the pad so that the gravel bed extends 2. Place the unit so air vents won’t become clogged with leaves, several inches beyond the generator on all sides. grass, snow or debris. Make sure the generator is level within ½ inch. Make sure exhaust fumes will not enter the building through eaves, windows, ventilation fans or other air intakes.

  • Page 8: Installing & Connecting Gas Lines

    6. On all other models, simply remove the air cleaner cover and slide the fuel selector pin outward from the natural gas to the LP position. INSTALLING & CONNECTING GAS LINES 2. Take the plastic T-handle fuel selector in the poly bag supplied with the generator and locate the selector tab on the air box cover.

  • Page 9: Battery Charger Installation

    4. When connecting the gas line to the generator, use the 7. When finished checking the gas pressure, close the manual provided section of UL Listed or AGA-approved flexible fuel shutoff valve. line in accordance with local regulations. The purpose of the BATTERY CHARGER INSTALLATION flexible fuel line is to ensure that vibration from the generator does not cause a gas leak at one of the connection points, so...

  • Page 10: External Electrical Connections

    EXTERNAL ELECTRICAL CONNECTIONS 5. For 10-20 kW models, locate the metal hasp that is packaged in the owner’s manual bag. Insert the hasp in the slot located on the left side of the external circuit breaker box. Be sure that 1.
  • Page 11 3. Remove the two screws securing the connection area cover, 8. Remove the plastic plugs inside the main breaker access area and remove the cover. to allow connection of the power leads to the circuit breaker. 4. Feed the wires through the back of the generator and secure 9.

  • Page 12: Appendix A - Rts Pre-Wired Load Center Transfer Switch Installation & Operational Testing

    3. Protect against impact and mount the switch vertically to a rigid support structure. Make sure the switch is level and 13. If the battery charger was factory mounted in the transfer plumb. switch, 0 (zero) will also need to be connected between the The transfer switch is an open transition switch.

  • Page 13: Battery Installation

    11. Install a 2-pole breaker in the distribution panel to protect the transfer switch. The required amp rating of the breaker depends on which transfer switch is used. If installing an 8-circuit, pre-wired load center switch, the breaker cannot exceed 40 Amps. For all other pre-wired load center switches the breaker cannot exceed 70 Amps.

  • Page 14: Operational Testing

    3. Battery Power-up: Interconnect system self test feature checks for the presence of utility voltage on the DC circuits at the control panel terminal blocks (see flow chart). OPERATIONAL TESTING 2. Follow all of the procedures and safety precautions in the generator Owner’s Manual when installing the battery.
  • Page 15 1. Switch the generator’s main circuit breaker OFF and put the models, if line-to-neutral voltage is not 120 volts, check the mode switch in the OFF position. neutral connection between the generator and transfer switch. For 8 kW models check to be sure that the frequency from the generator is correct.

  • Page 16: Appendix B - Rtsn Nd Rtse Transfer Switch Installation & Operational Testing

    10. Shut OFF utility power and make sure the generator starts automatically. 14. Switch the main breaker ON to restore utility power. The generator will continue to run to allow the engine to cool down before shutting itself off. Shut off utility power again. The generator should start and the entire priority load should transfer to the generator.

  • Page 17: Selected Circuit Coverage

    2. Always inspect the switch for shipping damage. Never mount a transfer switch that shows any evidence of damage. 6. The transfer switch being used is an open transition switch. Open transition switches prevent electrical feedback between the generator and the utility by only allowing load circuits to be connected to one power supply at a time.

  • Page 18: Battery Charger Installation

    ELECTRICAL CONNECTIONS Unless a service entrance rated transfer switch is used, a main service disconnect must be located before the transfer switch. The transfer switch must be installed between the utility service entrance and the building distribution panel. 1. Connect the power leads from both the generator and the utility to the appropriate lugs in the transfer switch.

  • Page 19: Operational Testing

    4. Complete the transfer switch wiring by connecting the 3. Energize the utility and check line-to-line and line-to-neutral equipment ground wires from both the utility and the voltage at terminals N1 and N2 on the transfer contactor. If generator to the ground lug. line-to-line voltage is not approximately 240 volts, de-energize utility power and check the terminations between the utility and N1 and N2.
  • Page 20 7. Put the generator’s mode switch in MANUAL to start the engine. Allow the engine to warm up, then switch the generator’s main breaker to the ON position. The generator is now supplying electricity to the transfer switch but is not carrying any load. 11.

  • Page 21: Appendix C - Powermaster™ Load Controller Installation And Operationa Testing

    15. Shut OFF utility power again to automatically start the generator. When power has transferred to the generator, close each of the breakers in the distribution panel one at a time until the generator has accepted the entire load. 20. Close the main breaker to restore utility power and allow the engine to cool down and shut itself off.

  • Page 22: Operational Testing

    7. The auxiliary switches that came with the controller must be installed in the transfer switch. These switches ensure that the controller will only disconnect the selected appliances when utility power is off and the generator is running. Refer to the Technical Manual for specific instructions for installing the auxiliary switches.
  • Page 23 2. If using a service entrance rated transfer switch, put the generator disconnect switch in the ON position if applicable. 6. Check voltage and frequency from the generator. If line-to-line voltage is not 240 volts, refer to the Installation Guide for the proper adjustment procedures.
  • Page 24 10. Shut OFF utility power and make sure the generator starts automatically. 14. Switch the utility breaker ON to restore utility power to the home. 11. Switch the utility breaker to ON and make sure that power is automatically transferred back to the utility. 15.

  • Page 25: Checking The Priority Load Controller

    CHECKING THE PRIORITY LOAD CONTROLLER 5. When the generator is carrying the entire load, check the voltage on the load side of the contactors to be sure the appliances connected to the controller are working properly. 1. With utility power ON, make sure the central air conditioner will not start.

  • Page 26: Appendix D - Power Manager Load Shed Transfer Switch Installation And Operational Testing

    9. The generator’s engine will continue to run through a cool down period before shutting itself OFF. If everything worked properly, the generator is now ready for automatic operation. APPENDIX D – POWER MANAGER LOAD SHED TRANSFER SWITCH INSTALLATION AND OPERATIONAL TESTING 5.

  • Page 27: Battery Charger Installation

    8. The grounding that is normally in the main panel must be accomplished in the Power Manager Load Shed transfer switch and must be disconnected in the existing distribution panel. Refer to the National Electrical Code (NEC) for complete information on grounding and bonding. BATTERY CHARGER INSTALLATION 4.
  • Page 28 8. Reconnect the power lead to a matching breaker on the load 12. Remember that for every circuit moved from the main panel center. to the load center, the neutral will need to be relocated to the load center as well. 9.

  • Page 29: Operational Testing

    OPERATIONAL TESTING 5. With the main breaker OFF, energize the utility and check the voltage at terminals N1 and N2 on the transfer contactor. If 1. Before energizing utility power to the service, make sure the utility voltage is not approximately 240 volts, de-energize main breaker is in the open (OFF) position.

  • Page 30: Verifying Load Shedding Operation

    9. Next, make sure line-to-neutral voltage at T1 and T2 is 13. Now check the terminations in the sub-panel. If there is a approximately 120 volts. If line-to-neutral voltage is not primary breaker in the sub-panel, make sure it is in the OFF approximately 120 volts at any point in the system, check position.
  • Page 31 3. With all branch circuit breakers still OFF, switch the main 7. For all models except the 8 and 10kW check to be sure that breaker ON. The load shed contactor should automatically output voltage from the generator is correct. If line-to-line move DOWN to the closed position, verifying that the load voltage is not approximately 240 volts, refer to the generator shedding switch is working properly.
  • Page 32 NOTE: Even if the generator is running smoothly at this point, a drop in gas pressure indicates that the supply is barely adequate to supply the generator’s needs. Changes in the generator load, or additional gas demand by other appliances may affect the generator’s performance.

  • Page 33: Appendix E - Genready Load Center Installation And Operational Testing

    APPENDIX E – GENREADY LOAD CENTER 5. All wiring must be the correct size and type, and must conform to all codes, standards and regulations. Refer to the INSTALLATION AND OPERATIONAL TESTING load center Owner’s Manual and the National Electrical Code (NEC) for additional information.

  • Page 34: Electrical Connections

    ELECTRICAL CONNECTIONS 1. Connect the utility power leads from the meter to the main Utility circuit breaker in the load center. 5. Connect the customer loads to the load center. The breakers above the operator are used for loads which will not be backed up during a power outage.

  • Page 35: Operational Testing

    8. Connect the control wires from the generator to the load 2. Switch the generator’s main circuit breaker OFF and put the center operator. Connect the 23 wire to the XFER terminal, mode switch in the OFF position. 15B to the BAT+ terminal, and 0 to the BAT- terminal. 3.
  • Page 36 11. Switch the main utility breaker ON to restore utility power. 7. For all models except the 8 and 10 kW check to be sure that voltage from the generator is correct. If line-to-line voltage is not approximately 240 volts, refer to the generator Owner’s Manual for the proper adjustment procedure.

  • Page 37: Appendix F - Setting The Automatic Exercise Function

    15. Shut OFF utility power again to automatically start the 2. On all other models, the display will enter an Installation Assistant generator. When power on the lower half of the load center mode when battery power is first connected. The assistant will has transferred to the generator, turn ON each of the branch prompt to first enter the current date and time, followed by the circuit breakers in the lower half of the load center, one at a...
  • Page 38 7. Once set, the generator will exercise each week at the same time. Be sure to show the owners how to set the exercise function for the day and time they want the unit to exercise. 8. If the generator is equipped with the low speed exercise feature, it was enabled at the factory and no adjustment is needed.

  • Page 39: Notes

    NOTES...
  • Page 40 NOTES...
  • Page 41 NOTES...

  • Page 42: Electrical Data

    Electrical Data Wiring Diagram - 8kW – Drawing No. 0G7945-A...
  • Page 43 Electrical Data Wiring Diagram - 8kW – Drawing No. 0G7945-A...
  • Page 44 Electrical Data Electrical Schematic - 8kW – Drawing No. 0G8511-A...
  • Page 45 Electrical Data Electrical Schematic - 10kW – Drawing No. 0G8512-A...
  • Page 46 Electrical Data Wiring Diagram - 10kW – Drawing No. 0G7946-A...
  • Page 47 Electrical Data Wiring Diagram - 10kW – Drawing No. 0G7946-A...
  • Page 48 Electrical Data Wiring Diagram - 12 & 14kW – Drawing No. 0G7947-A...
  • Page 49 Electrical Data Wiring Diagram - 12 & 14kW – Drawing No. 0G7947-A...
  • Page 50 Electrical Data Electrical Schematic - 12 & 14kW – Drawing No. 0G8513-A...
  • Page 51 Electrical Data Electrical Schematic - 12 & 14kW – Drawing No. 0G8513-A...
  • Page 52 Electrical Data Wiring Diagram - 16 & 17kW – Drawing No. 0G7948-A...
  • Page 53 Electrical Data Wiring Diagram - 16 & 17kW – Drawing No. 0G7948-A...
  • Page 54 Electrical Data Electrical Schematic - 16 & 17kW – Drawing No. 0G8514-A...
  • Page 55 Electrical Data Electrical Schematic - 16 & 17kW – Drawing No. 0G8514-A...
  • Page 56 Electrical Data Wiring Diagram - 20kW – Drawing No. 0G8186-A...
  • Page 57 Electrical Data Wiring Diagram - 20kW – Drawing No. 0G8186-A...
  • Page 58 Electrical Data Electrical Schematic - 20kW – Drawing No. 0G8515-A...
  • Page 59 Electrical Data Electrical Schematic - 20kW – Drawing No. 0G8515-A...
  • Page 60 Part No. 0G8679 Revision F (10/09/09) Catalog No. IM-ASPCA-S-01 Printed in U.S.A.

This manual is also suitable for:

8 kw lp9 kw ng10 kw lp15 kw ng14 kw lp17 kw lp ... Show all

Table of Contents