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Generac Power Systems Air-cooled Generators, Installation Manuallines, Page: 1 / 40

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Generac Power Systems Air-cooled Generators Installation Manuallines Download Page 1

INSTALLATION
GUIDELINES

Air-cooled Generators

www.generac.com or 1-888-GENERAC

NOT INTENDED FOR USE IN CRITICAL LIFE 

SUPPORT APPLICATIONS.
ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS 

SHOULD ATTEMPT INSTALLATION!
DEADLY EXHAUST FUMES! OUTDOOR 

INSTALLATION ONLY!

THIS MANUAL MUST BE USED IN 
CONJUNCTION WITH THE OWNERS 
MANUAL.

Summary of Contents for Air-cooled Generators

Page 1: ...com or 1 888 GENERAC NOT INTENDED FOR USE IN CRITICAL LIFE SUPPORT APPLICATIONS ONLY QUALIFIED ELECTRICIANS OR CONTRACTORS SHOULD ATTEMPT INSTALLATION DEADLY EXHAUST FUMES OUTDOOR INSTALLATION ONLY THIS MANUAL MUST BE USED IN CONJUNCTION WITH THE OWNERS MANUAL ...

Page 2: ...as Induction Motors sump pumps refrigerators air con ditioners furnaces etc Electronic Components computer monitor TV etc Lighting Loads and Microwaves If any portion of this manual is not understood contact the nearest Dealer for starting operating and servicing procedures Throughout this publication and on tags and decals affixed to the generator DANGER WARNING CAUTION and NOTE blocks are used t...

Page 3: ...r suggests that these rules for safe operation be copied and posted near the unit s instal lation site Safety should be stressed to all operators and potential operators of this equipment Study these SAFETY RULES carefully before installing operating or servicing this equipment Become familiar with this Owner s Manual and with the unit The generator can operate safely efficiently and reliably only...

Page 4: ...UTO OFF MANUAL switch to its OFF position before working on equipment and remove the 7 5A fuse from the generator control panel In case of accident caused by electric shock immediately shut down the source of electrical power If this is not possible attempt to free the victim from the live conductor AVOID DIRECT CONTACT WITH THE VICTIM Use a nonconducting implement such as a dry rope or board to f...

Page 5: ...due to backfeed of electrical energy 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 or affix their signature under the consignor s memo of loss or damage If a loss or damage is noted after delivery separate the damaged materials and contact the carrier for claim procedures Concealed damage is understood to mean damage to...

Page 6: ...rator Cover with polyurethane film and fill with pea gravel or crushed stone Compact and level the stone A concrete pad can be poured if desired 3 Inspect the generator for shipping damage and if necessary file a claim with the shipper Remove the bands holding the generator to the wooden pallet 4 Make sure the lifting equipment to be used has sufficient capacity to safely handle the weight of the ...

Page 7: ...ator and locate the selector tab on the air box cover Insert the pin end into the hole in the selector tab and pull outward to overcome spring pressure Then twist clockwise 90 degrees and allow the selector to return in once aligned with the LP position 3 On 10 kW units open the roof loosen the forward clamp on the air inlet hose and slide the hose away from the hose fitting 4 Slide the fuel selec...

Page 8: ...ed section of UL Listed or AGA approved flexible fuel line in accordance with local regulations The purpose of the flexible fuel line is to ensure that vibration from the generator does not cause a gas leak at one of the connection points so it s important that the line be installed with as few bends as possible Installing a sediment trap is also recommended 4 Never bend the flexible fuel line to ...

Page 9: ...k Don t forget to caulk the hole inside the house as well 4 Replace the protective cover plate and retaining screw and lock the connection box 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 the clip of the hasp is facing toward the front of the generator If ...

Page 10: ...pre wired and connected to the generator no additional connections are necessary at the generator Skip the following section and proceed with Appendix A EZ Switch Installation Operational Testing 2 If the EZ Switch was purchased separately from the generator the 5 seal tite whip will need to be connected to the generator To complete the wiring run the conduit for the power leads and control wires ...

Page 11: ...m or call 1 888 9ACTIVATE 922 8482 If you already have your activation code wait 3 5 seconds for the next display ENTER ACTIVATION CODE Passcode TROUBLESHOOTING Display Reads Use ARROW keys to scroll and find the first number of your Activation Code Press ENTER to select Repeat this step until all digits have been entered Use ESCAPE to correct previous digits Display Reads Activation is complete w...

Page 12: ...ion of circuits the DC control wires must be separated from the AC control wires A piece of fiber glass sleeving has been provided in the manual kit to achieve this Slide the sleeving over the AC wires OR the DC wires but not both from the wire landing area to the outside of the gen erator Use the cable tie locations to hold the sleeving in place 12 An improperly connected control wire can damage ...

Page 13: ... the transfer switch 5 When three conductor wiring is used two 120 volt circuits will often share the same neutral wire To avoid overloading the neutral either move BOTH of the circuits that share the neutral or don t move either of them 6 When moving two circuits with a shared neutral they should be connected to adjacent positions one above the other in the transfer switch That will assure that t...

Page 14: ...the existing electrical distribution panel Install the breaker in two adjacent empty slots one above the other in the main panel 12 When all priority circuits have been moved to the transfer switch close the main breaker to restore utility power and make sure utility voltage at the transfer switch is correct Refer to NFPA 70 E for the safety equipment required when working inside a live transfer s...

Page 15: ...enerator s main breaker to the ON position The generator is now supplying electricity to the transfer switch but is not carrying any load 5 Be sure that voltage and frequency from the generator is correct If line to line voltage is not approximately 240 volts refer to the Owner s Manual for the proper adjustment procedures On all models if line to neutral voltage is not 120 volts check the neutral...

Page 16: ...at a time until the generator has accepted the entire priority load 13 With the generator carrying the entire priority load recheck gas pressure to verify that it is at the same level it was before the generator was started 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 ...

Page 17: ...ransfer switch enclosure 2 Always inspect the switch for shipping damage Never mount a transfer switch that shows any evidence of damage Check local codes before wiring the transfer switch Some jurisdictions require that wiring inside the switch be done by a licensed electrician 4 All wiring must be the correct size and type and must conform to all codes standards and regulations Refer to the tran...

Page 18: ...ctrical loads within the panel so the amperage rating of the transfer switch must be equal to or greater than the amperage rating of the normal utility service Unless a service 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 2 A service r...

Page 19: ...ity Supply E Generator Connection Panel T Load Distribution Panel 2 Neutral wires from both the utility and the generator are connected to the same neutral bar in the switch 3 4 Complete the transfer switch wiring by connecting the equipment ground wires from both the utility and the generator to the ground lug 5 Being careful to support the lugs torque the lugs in the transfer switch to the speci...

Page 20: ...gh the contactor 4 Switch the generator s main circuit breaker OFF and put the mode switch in the OFF position 5 Make sure utility power is OFF and place all of the individual 6 Locate the transfer handle insert the metal end into the slot in the main contactor assembly Pull the handle DOWN to move the main contacts to the standby power generator position NEVER OPERATE THE TRANSFER SWITCH MANUALLY...

Page 21: ...tility power and make sure the generator starts automatically after the line interrupt delay 14 Switch the utility breaker to ON and make sure that power is automatically transferred back to the utility 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 generat...

Page 22: ...tioner connect the Y terminal of the thermostat to one of the A C 1 terminals Connect the other A C 1 terminal to the Y terminal on the air conditioner Use 18 26 AWG copper wire Refer to the Owner s Manual for specific torque connection requirements 2 To control a second air conditioner repeat the above using terminals marked A C 2 65 NOTE For specific AC control wire information please refer to t...

Page 23: ...thermostat wire away from High voltage wires 3 If required connect the second air conditioner to the terminal strip terminals Air 2 Contact Ratings Air 1 2 24 VAC 5 0 Amps Max NOTE These instructions are for a typical air conditioner installation Control of heat pump and 2 stage air conditioners will require special connections A separate contactor relay module can be purchased from the manufactur...

Page 24: ...l Following transfer switch installation and interconnection inspect the entire installation carefully A competent qualified electrician should inspect it The installation should comply strictly with all applicable codes standards and regulations When absolutely certain the installation is proper and correct complete a functional test of the system 01 13 90 SX EXIV IEXIV 2 If the exercise time or ...

Page 25: ...23 Electrical Schematic Drawing No 0H6386 B Electrical Data ...

Page 26: ...24 Electrical Data Wiring Diagram Schematic Drawing No 0H6385 A ...

Page 27: ...25 Wiring Diagram Schematic Drawing No 0H6385 A Electrical Data ...

Page 28: ...26 Electrical Data Wiring Diagram Schematic 8kW Drawing No 0J2999 A ...

Page 29: ...27 Wiring Diagram Schematic 8kW Drawing No 0J2999 A Electrical Data ...

Page 30: ...28 Electrical Data Wiring Diagram Schematic 8kW Drawing No 0J2999 A ...

Page 31: ...29 Wiring Diagram Schematic 10 14kW Drawing No 0J3000 A Electrical Data ...

Page 32: ...30 Electrical Data Wiring Diagram Schematic 10 14kW Drawing No 0J3000 A ...

Page 33: ...31 Wiring Diagram Schematic 10 14kW Drawing No 0J3000 A Electrical Data ...

Page 34: ...32 Electrical Data Wiring Diagram Schematic 17 20kW Drawing No 0J3001 A ...

Page 35: ...33 Wiring Diagram Schematic 17 20kW Drawing No 0J3001 A Electrical Data ...

Page 36: ...34 Electrical Data Wiring Diagram Schematic 17 20kW Drawing No 0J3001 A ...

Page 37: ...35 NOTES ...

Page 38: ...36 NOTES ...

Page 39: ...37 NOTES ...

Page 40: ...Part No 0J4873 Revision B 06 29 11 Printed in U S A ...

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