Onan 175 DFE Installation Manual Download Page 21

Summary of Contents for 175 DFE

Page 1: ...Onon Installation Manual OF Diesel Driven 960 0601 6 88 Printed in U SA...

Page 2: ...r set are secure Tighten supports and clamps keep guards in position over fans drive belts etc Do not wear loose clothing or jewelry in the vicinity of moving parts or while working on electrical equi...

Page 3: ...em 8 Cooling System 8 ELECTRICAL CONNECTIONS 11 General 11 Transfer Switch 11 AC Wiring 11 DC Wiring 14 PRESTART PREPARATIONS 16 Coolant 16 Lubrication 16 Fuel 17 Ventilation 17 Exhaust 17 Electrical...

Page 4: ...very situation If there are any ouestions not answered by this manual contact an Onan distributor for assistance Application and Installation A standby power system must be carefully planned and corre...

Page 5: ...tem Exhaust Connection in pipe thread Exhaust Backpressure Maximum Allowable 5 inches NPT 41 inches H2O 3 inches Hg Electrical System Starting Voltage Battery 24 Volts DC Two 12 Volt Group 8D AWARNING...

Page 6: ...OOLING AIR INLET MUST BE AT LEAST 1 1 2 TIMES LARGER THAN RADIATOR DUCT OUTLET AREA ON RADIATOR COOLED MODELS FLOW OF COOLING AI R AND HEATED AIR MAY BE CON TROLLED BY AUTOMATICALLY OPERATED LOUVERS R...

Page 7: ...extreme ambient tempera tures and protect the generator set from adverse weather conditions An optional housing is available for outside operation Use 3 4 inch diameter anchored mounting bolts to secu...

Page 8: ...ctreuit to open the valve during generator set operation Supply Tank Locate the fuel tank as close as possible to the genera tor set and within theSfoot 1 5 metre lift capacity ofthe fuel pump if poss...

Page 9: ...lied as standard equipment Refer to Table 1 SPECIFICATIONS tor the fitting sizes EXHAUST SYSTEM Pipe exhaust gases to the outside of any enclosure Locate the exhaust outlet away from air inlets to avo...

Page 10: ...sometimes necessary in cold climates to keep the generator enclosure at a normal temperature Radiator Set Radiator set cooling air is drawn past the rear of the set by a fan which blows airthrough the...

Page 11: ...for heat removal Adjust the flow to maintain water temperature between 165 and 1950 F 74 and 910 C while viewing the water temperature gauge The engine coolant side of the sys tem can be protected fro...

Page 12: ...A R G I N G A L T E R N A T O R FIGURE 8 TYPICAL COOLANT FILTER Coolant Heater Optional A coolant heater is used to keep engine coolant warm when the engine is shut down It heats and circulates the co...

Page 13: ...e is the higher rating Generators can be divided into two groups reconnecti ble and non reconnectible The reconnectible type generator can be wired to give one of several possible voltages Non reconne...

Page 14: ...B T B i i 5 ll S 2 3 0 f X 1 T0 Z20 IT soe so 12 0 20 8 uyiAo sis 1 10 1 9 0 115 20 0 nq ios UT 220 6 0 60 e S iXK SO SO so t3r TV TIO T6 T7 17 T i l T 41T81 T3 T12 TS to 11 C T21 13 CT22 CT24 CT23 T...

Page 15: ...flow from each line after connections by observing the control panel ammeter Grounding Grounding involves making a conducting connection between the metal parts of the generator set or one of its elec...

Page 16: ...rovisions are made inside the control box for addition of optional remote monitoring on these generator sets employing optional Detector 12 Control 12 light panel Connections are made on the terminal...

Page 17: ...batter ies as necessary Infrequent unit use as in emergency standby service may allow the batteries to self discharge to the point where they cannot start the unit If installing an automatic transfer...

Page 18: ...L f teW wa r n dip ti Sigure 17 3 Remove plugSromth eadcdffdMN 16 and connectva hand tor rmdtONdriven ipiming pump from5a sot ee ffasteaia UI BB fcfig ilft h e plug boss inEfjlter h oasihg 4 Prime a n...

Page 19: ...installation Verify there is at least 12 inches 305 mm clearance between exhaust pipes and any combustible materials ELECTRICAL SYSTEM Verify all electrical connections are secure and all wiring is co...

Page 20: ...ets L1 L2 L2r L3 and L3 L1 on three phase sets Read the AC voltmeter using the upper or lower scale as indicated by the scale indicator light At no load the line to line voltage should be the same as...

Page 21: ...cause severe personal injury or death Proceed with care C Open control panel doors locate VRAS 2 upper left and refer to Figure 20 to locate R32 potentiometer D While observing the voltmeter insert a...

Page 22: ...LITY RANGE 60 Hz TORQUE MATCHING 50 Hz TORQUE MATCHING NON TORQUE MATCHING S1 1 SI 2 S2 S3 1 S3 2 S2 S3 1 S3 2 S2 S3 1 S3 2 ON ON POS 2 OFF ON POS 2 ON ON POS 2 OFF OFF Switch SI Selects the overall r...

Page 23: ...inals on the battery for clean and tight connections Loose or corroded connections create resistance that can hinder starting Clean and reconnect the battery cables if loose Always connect the negativ...

Page 24: ...I Onon Onan Corporation Telephone 612 574 5000 1400 73rd Avenue N E Telex 275477 Minneapolis Minnesota 55432 Cable ONAN...

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