Generac 20kW User Manual

STANDBY GENERATOROWNER'S MANUALThis manual should remain with the unit.A new standard of reliabilitySerial NumberQT1.5L20kWModels—CAUTION—O

SPECIFICATIONSGENERATORType ... SynchronousRotor Insulation ...

COLD WEATHER KITFor cold climates, optional cold weather kit (part number 0F6148) is recommended. The kit includes:• Battery Warmer• 4” Junction Box

GENERATOR AC LEAD CONNECTIONSSee “Voltage Codes”. This generator may be rated at any one of three voltages, either single-phase or three-phase. The el

INSTALLATIONRefer to the separate “Installation Guide QT Product Line” supplied with the unit.PREPARATION BEFORE START-UPThe instructions in this sect

START-UP CHECKLIST Before working on the generator, ensure the fol-lowing:• The AUTO/OFF/MANUAL switch is in the OFF position.• The 120VAC supply to

GENERATOR CONTROL AND OPERATIONRefer to the appropriate control panel operator’s manual for this unit.OPERATING UNIT WITH MANUAL TRANSFER SWITCHIf the

MAINTENANCE PERFORMED BY AUTHORIZED SERVICE FACILITIES  Before working on the generator, ensure the fol-lowing:• The AUTO/OFF/MANUAL switch is in th

Figure 10.1 - Oil Dipstick and Oil Fill CapOIL FILL CAPOIL DIPSTICKBATTERY FLUIDCheck battery electrolyte fluid based on the Maintenance Schedule. Flu

CHANGING ENGINE OILRefer to maintenance performed by authorized service facilities for engine oil and filter change frequencies.Drain the oil while th

MISCELLANEOUS MAINTENANCECLEANING THE GENERATORKeep the generator as clean and as dry as possible. Dirt and moisture that accumulates on internal gen-

Standby Generator SetsTable of ContentsSECTION PAGESAFETY RULES ... 1-1INTRODUCTION ...

SERVICE SCHEDULEThe following is a recommended maintenance schedule for small standby and residential generator sets. The established intervals in the

Maintenance Level 1 Level 2 Level 3 Level 4 Tasks Recom- Task Required Task Required Task Task mended Comp. to be done Comp. to be

Maintenance Level 1 Level 2 Level 3 Level 4 Tasks Recom- Task Required Task Required Task Task mended Comp. to be done Comp. to be

TROUBLESHOOTING GUIDEPROBLEM CAUSE CORRECTIONEngine won’t crank. 1. 15 amp fuse blown. 1. Replace fuse. 2. Loose or corroded or defective 2.

Standby Generator SetsNotes

Standby Generator SetsNotes

1 0F7135 1 BREAKER TRAY BACK/BOTTOM2 0F7022 1 SUPPORT CONTROL PANEL SIDE RH3 0F7021 1 SUPPORT CONTROL PANEL SIDE LH4 0F7260 1 COVER CIRCUIT BREAKER 2P

1 098675 1 ASSY ROTOR 20KW2 0A5336A 1 HOUSING BLOWER3 0A1659 1 SCREEN AIR OUTLET4 020746 4 SCREW PPHM M5-0.8 X 8 ZINC5 049226 4 WASHER LOCK M56 051713

Study these SAFETY RULES carefully before install-ing, operating or servicing this equipment. Become familiar with this Owner’s Manual and with the un

1 0F3408B 1 BATTERY TRAY C1 CPL2 0F3411 1 STRAP BATTERY RETAINMENT3 025507 REF WASHER SHAKEPROOF EXT 7/16 STL4 052647 REF SCREW SHC M10-1.5 X 25 G12.9

1 0F7155 1 MOUNTING BASE 1.5L C1 CPL2 027482 2 WASHER SHAKEPROOF EXT 5/16 STL3 070936 2 DAMPENER VIBRATION4 070936C 2 VIB. ISO. 70-75 DURO5 039253 8 S

1 0F7211 1 SUPPORT RADIATOR LH SIDE2 0F7209 1 VENTURI 15" DIA FAN3 0F7210 1 SUPPORT RADIATOR RH SIDE4 0E9837A 1 RADIATOR 2.5L CPL5 0E1936 1 FAN C

1 098290 1 ASM MOTOR STEPPER2 098941A 1 HOUSING GOVERNOR CONNECTOR3 098958A 1 CONNECTOR INTERFACE ASSEMBLY4 098942A 1 COVER CONNECTOR HOUSING5 098225

1 0A4531 REF ENGINE-1.5L2 022473 2 WASHER FLAT 1/4 ZINC 3 * 055934C 1 CLAMP VINYL .5 X .406 Z4 0A45310258 REF. GASKET-EXHAUST MANIFOLD5 0A4355 1 MANI

• Before performing any maintenance on the gen-erator, disconnect its battery cables to prevent accidental start-up. Disconnect the cable from the bat

1 026812 2 ELBOW 90D 3/4 NPT2 075580 1 FLANGE FUEL INLET3 0F6364A 1 FUEL RGLTR 1.5L REWORK4 039253 4 SCREW HHC M8-1.25 X 20 G8.85 022145 2 WASHER FLAT

1 0F7003 (XX) 1 ROOF C1 CPL2 0F7004 (XX) 1 CORNER POST LH SIDE C1 CPL3 0F7008 (XX) 1 DOOR REAR C1 CPL4 0F7005 (XX) 1 CORNER POST RH SIDE C1 CPL5

1 0F7366 1 MUFFLER C12 0F7647 1 MUFFLER SADDLE3 0F8095 1 PIPE EXHAUST OUTLET4 0F7538 1 PIPE EXH INLET MUFLR SIDE 1.5L5 0E3257 4 SCREW HWHTF M6-1.0 X 1

1-3INTRODUCTIONThank you for purchasing this model of the standby generator set product line.Every effort was expended to make sure that the informati

Standby Generator SetsWarrantyPrinted in U.S.A.GENERAC POWER SYSTEMS STANDARD LIMITED WARRANTY FORHOME STANDBY/LIGHT COMMERCIAL PRODUCT 45kW AND BELOW

IDENTIFICATION RECORDDATA LABELEvery generator set has a DATA LABEL that contains important information pertinent to the generator. The data label, wh

EQUIPMENT DESCRIPTIONThis equipment is a revolving field, alternating cur-rent generator set. It is powered by a gaseous fueled engine operating at 18

ENGINE PROTECTIVE DEVICESThe standby generator may be required to operate for long periods of time without an operator on hand to monitor such engine

FUEL SYSTEMFUEL REQUIREMENTSThe standby generator may be equipped with one of the following fuel systems:• Natural gas fuel system• Propane vapor (P