Cummins Onan Cummins Onan RV Generator Handbook Performance you rely on.™ Performance you rely on.™ Cummins Power Generation 1400 73rd Ave. NE Minneapolis, MN 55432 USA Phone 1 763 574 5000 Toll-free 1 800 888 6626 Fax 1 763 574 5298 Email www.cumminsonan.com/contact www.cumminsonan.com Cummins,® Onan,® the "C" logo, and Performance you rely on are registered trademarks of Cummins Inc. ©2007 Cummins Power Generation. All Rights Reserved. F-1123 8.
Table of Contents I. Important Safety Precautions 1 II. Quickstart Guide For New RV Generator Owners 3 III. Determining Which Cummins Onan Generator Model You Own 5 IV.
• Disable auto-start systems while refueling, servicing, storing or long-term parking. • Perform all service and maintenance work with the generator engine off and the positive battery cable disconnected. Moving parts can cause severe personal injury or death, and live wires could cause fatal electrocution. • Backfeed to utility systems can create serious risks to life or property.
Cummins Onan Web Sites CumminsOnan.com is the official online home for all Cummins Onan products. Visit CumminsOnan.com to learn more about our full line of RV generators for motorhomes and trailers as well as portable generators for the home or campground. You can also view operator manuals online or find the dealer nearest you with our sales and service locator. Check it out today at www.cumminsonan.com. Green Label Parts are available at most Cummins Onan dealer or distributor locations.
III: Determining Which Cummins Onan Generator Model You Own For the 2008 model year, Cummins Onan RV generator models will be receiving new model names, to more closely align them with the Cummins model descriptor standard. Two new model identifiers – Quiet Gas(QG) and Quiet Diesel(QD) will be introduced. Each of these will identify which type of fuel the generator runs on and will be followed by the unit’s kilowatt rating.
Common Power Requirements IV: RV Generator Operation Load Management Basics To understand how battery chargers, automatic generator start systems and other baseloads affect your generator, you need to be aware of three things: 1) Your generator’s power capability 2) How to manage electrical loads 3) Battery charging times Determining Your Generator’s Power Capability Appliances Average Required Wattage Amps Air Compressor (1hp) 1500-2000 9-20 Air Conditioner 1400-2400 9-20 Battery Charger Up t
Operating Motor Driven Appliances Starting And Stopping Procedures When using an appliance with a motor, turn it on and let it reach normal running speed before starting other appliances. Air conditioners, like all electric motors, can draw up to three times more power during the first few seconds of start up than during normal operation.
Managing Electrical Loads Understanding Battery Charging Times If you try to operate too many things at once, you’ll “overload” the generator. Your lights will flicker or the circuit breakers on the generator or the main electrical panel will trip open, stopping the flow of power. In addition to understanding battery charging loads, it is important to know that battery charging takes time. The chart below shows how long a 100A charger must run before reaching 100% battery charge.
Preventing Surging The electrical supply (voltage and frequency) for any appliance must remain within very close limits for it to operate properly. Changes in the electrical supply (called surging) can damage the appliances in your RV. Proper care of your generator will enable it to supply a stable power source and prevent surging. RV generator engine speed is controlled with a governing system.
Q: Why does a breaker trip and the rear air conditioner not work when I turn it on while the generator is running? A: RVs with two air conditioners typically have a 20-amp circuit breaker for the rear air conditioner and a 30-amp breaker for all other loads (including the front air conditioner). The RV may be wired with the two circuits reversed, causing the breaker to trip. The generator connections and wiring should be checked by an authorized service location.
Q: Once the generator is started, should it continue to run for a certain length of time? A: Ideally, Cummins Onan generators should run for a minimum of 30 minutes to give them a chance to warm up. Once warmed up, running your generator for five-minute intervals should be fine. But remember to turn on some appliances so the generator works while it’s running. Running it for more than 30 minutes at no load only burns fuel unnecessarily and adds costly maintenance.
Q: What is the difference between LP Vapor and LP Liquid Fuel Systems? A: LP Vapor Withdrawal — With a vapor withdrawal system, the LP fuel is vaporized in the fuel tank by heat input from the environment. The pressure is reduced to about 11-inches of water column (0.4 psi) at the tank outlet with a regulator. The vaporized LP fuel flows to the demand regulator on the generator, which reduces the pressure before it enters the carburetor.
• Maintenance charts are printed in all Operator’s Manuals. • Check your generator exhaust system each time you start the generator. Make sure it doesn’t leak and that it extends beyond the vehicle’s perimeter. • Refer to manual for service intervals for injectors and valve adjustments that typically are recommended at 500-1,000 hours. RV Generator Manuals MicroQuiet VI: Generator Care & Maintenance A Cummins Onan RV generator is an investment that can bring you many years of comfort and enjoyment.
General Generator Maintenance Intervals General Generator Maintenance Intervals Model Service Intervals - Repeat Every Service Item Mthly Schedule Cummins Onan Service Center Tune-Up 50 Hrs 100 Hrs 150 Hrs 200 Hrs 250 Hrs 450 Hrs 500 Hrs RV QG/RV QG RM (CAMP POWER™/MICROLITE™/ MICROQUIET™) Clean & Check Battery & Connections X (5) Change Air Filter X (2,4,5) Replace Spark Plugs X (5) Change Fuel Filter X (5) Schedule Cummins Onan Service Center Tune-Up X (6) 50 Hrs 100 Hrs 150 Hrs
Do’s And Don’ts For Better Generator Performance The Do’s: DO keep your generator clean by wiping it periodically with a clean cloth. DO turn off all appliances in cold weather before starting your generator, for best long-term performance. DO check owner’s manual for periodic maintenance schedule. DO check the exhaust system regularly for damage or leaks. Make sure the exhaust pipe extends out at least one inch beyond the vehicle’s perimeter.
Keep the oil level as near as possible to full, but do not overfill. Overfilling may cause foaming and engine shutdown. Replace the cap tightly to prevent leakage. And if your generator has an oil filter, change it when you change the oil. Do NOT check the oil level while the generator is running, because hot oil can be thrown out of the dipstick hole, causing severe burns.
Troubleshooting Guide Service Diagrams Under normal operating conditions, you can expect your Cummins Onan generator to perform reliably without problems. But if a problem does occur you may be able to isolate the cause by using the following troubleshooting chart. RV QG 2800 RM If you cannot discover and correct the problem, make a note of your generator model and serial numbers and contact your local Cummins Onan Authorized RV Service and Parts Dealer. RV QD generators have a unique control system.
RV QG 4000 RM Emerald Advantage™ RV QG 4000 31 32
RV QG 5500/5500 EFI/7000/7000 EFI RV QD 3200 INTERNAL MUFFLER GENSET STOP SWITCH AC OUTPUT, BATTERY POS (+) & REMOTE CONTROL CONNECTIONS COOLING & VENTILATING AIR INLET SERVICE ACCESS BATTERY NEG ( ) CONNECTION MAINTENANCE ACCESS (AIR, FUEL & OIL FILTERS) BOTTOM EXHAUST & HOT AIR DISCHARGE MARQUIS™ 33 BOTTOM OIL DRAIN FUEL CONNECTIONS CHASSIS GROUND RV QD 5000 34
RV QD 6000/8000 HQD 8/10 O IL FILL INVER TER CO O LANT FILL INVER TER CO O LAN T ENG IN E CO O LANT FILL FU EL O N -O FF BATTERIES CB EXH AU ST (BACK,SID E,D O W N ) AIR IN LETS (SIDE,BO TTO M ) AIR FILTER RV QD 10000/12500 O IL FILTER FU EL FILTER CO O LAN T D RAIN HO T AIR O UTLET SPAR K AR RESTO R HQD 12/18 O IL FILL IN VER TER CO O LANT FILL IN VERTER C O O LANT C Bs FUEL O N -O FF BATTER IES EN G IN E CO O LANT FILL EXHAU ST (BACK,SIDE,DO W N) AIR INLETS (BO TTO M ,BAC K) O IL FILTER
takes about a thimbleful of dirt to wear out piston rings and cylinders. (Replacement filters for some older models may not include the pre-cleaner.) Spark Plugs The use of Green Label, resistive, original equipment spark plugs will keep your Cummins Onan genset working properly. Use of other non-resistive plugs can cause generator shut downs without fault codes.
39 26" 167-1602 9" 167-1615-01 167-0272 148-0898 140-2379 122-0645 160-1378 A-E BGEL 26" 167-1602 9" 167-1615-01 167-0272 149-2333 140-2379 122-0645 J-P BGE Electronic Ignition 26" 167-1602 9" 167-1615-01 167-0272 149-1353 140-2379 122-0645 H BGE Electronic Ignition 26" 167-1602 9" 167-1615-01 167-0272 149-2279 140-2379 122-0645 Electronic Ignition G BGE 26" 167-1602 26" 167-1602 167-0272 149-2279 140-2379 122-0645 160-1349-01 Prior to 9/87 NHEL F Begin 9/87 NHEL 160-1378 160-1378 Emerald™
41 42 J-P A-E NHE NHEL ™ H NHE G-H All Gasoline/NHM LP/NHM B-L KY 50 Hz HDKCB HDKCA HDKBA HDKAK HDKAJ HDKAH HDCAB HDCAA RV QG (Quiet Diesel™) KY 60 Hz KY 50 Hz RV QG (MicroQuiet ) ™ A KY KY 60 Hz A-C KVC A A A-H A-C J-L B-L A A-K A KV RV QG (MicroLite™ ) LP/HGJAA EFI/HGJAA RV QG (Marquis Platinum™ ) LP/HGJAB Gasoline/HGJAB A A-F Gasoline/NHM RV QG (Marquis Gold ) A-F G-H Gasoline/BGM Gasoline/BGM RV QG (Marquis™) Electronic Ignition G NHE — — — — El
43 44 A-B A B-D A B-D C A A-H A-H J-N P-R P BF RV BFA RV BFA RV BGA RV BGA RV BGAL RV NH Power Drawer NH Power Drawer 9000 NH RV NH RV NH RV NHL C D-E A B A-B C-E A HDKAG HDKAG DKC RV DKC RV DKD RV DKD RV DKG — — — — 160-1328-01 160-1378 160-1328-01 312-0069 160-0002, 312-0069 160-1154, 312-0069 160-1154, 160-1348-01 160-1348-01 160-1328-01 160-1348-01 160-1328-01 160-1328-01 312-0069 160-1154, Tune-up Kit 122-0827 122-0827 122-0827 185-5835 122-0800 122-0800 122-0800 1
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WASHINGTON 1 MONTANA NORTH DAKOTA 2 MAINE 10 MINNESOTA OREGON N.H. 32 IDAHO 11 SOUTH DAKOTA NEW YORK WISCONSIN VT. MASSACHUSETTS MICHIGAN WYOMING 33 15 16 17 RHODE ISLAND CONNECTICUT PENNSYLVANIA IOWA 18 NEBRASKA OHIO UTAH 14 7 DELAWARE 20 CALIFORNIA ILLINOIS COLORADO KANSAS W.
Florida 27 Cummins Power South 755 Pickettville Road Jacksonville, FL 32220 Toll free: 800-338-7027 28 Cummins Power South 321 S.W. 52nd Avenue Ocala, FL 34474 Toll free: 888-699-2774 29 Cummins Power South 4820 N. Orange Blossom Trail Orlando, FL 32810 Toll free: 800-338-7039 30 Cummins Power South 5910 E. Hillsborough Ave. Tampa, FL 33610 Toll free: 800-338-2519 18 Onan Indiana 5125 Beck Drive Elkhart, IN 46516 Toll free: 800-589-9027 25 Cummins Atlantic 350 Cummins Dr.
RV QD 3200 XI: Current RV Generator Model Information RV QD 3200 Introducing Cummins Onan Inverter Portables • Computer-controlled constant speed operation - Quiet Diesel performance for small RVs.
RV QG 2800/2500 RM, 4000/3600 RM Remote Muffler Generator Models RV QG RM Specifications Model 2800 2500 LP 4000 3600 LP The First Installed Generators for Travel Trailers, Truck Campers and Folding Watts 2800 2500 4000 3600 Camping Trailers. RPM 3600 3600 3600 3600 Volts 120 120 120 120 Hertz 60 60 60 60 Amps 23.3 20.8 33.3 30.0 Weight (lb) 107 107 167 167 (gal/hr) (gal/hr) (lb/hr) (gal/hr) (gal/hr) (lb/hr) Avg. Fuel Consumption No Load 0.2 0.2 0.9 0.3 0.4 1.
RV QG 2800/2500, 4000/3600 Lightweight, Compact and Quiet Gasoline/LP RV Generators RV QG Specifications Model 2800 2500 LP 4000 3600 LP Watts 2800 2500 4000 3600 RPM 3600 3600 3600 3600 Volts 120 120 120 120 Hertz 60 60 60 60 Amps 23.0 20.8 33.3 30.0 Weight (lb) Avg. Fuel Consumption 113 113 172 172 (gal/hr) (gal/hr) (lb/hr) (gal/hr) (gal/hr) (lb/hr) No Load 0.2 0.2 0.9 0.3 0.4 1.7 Half Load 0.3 0.3 1.3 0.5 0.6 2.6 Full Load 0.4 0.5 2.1 0.7 0.
RV QG 5500, 7000 / 6500 RV QG 5500/7000/6500 Specifications Model 5500 5500 LP 7000 6500 LP Watts 5500 5500 7000 6500 RPM 2400 2400 2880 2880 Volts 120 120 120 120 Hertz 60 60 60 60 Amps 45.8 45.8 58.3 54.2 Weight (lb) 279 279 290 290 (gal/hr) (gal/hr) (lb/hr) (gal/hr) (gal/hr) (lb/hr) Avg. Fuel Consumption No Load 0.3 0.4 1.7 0.4 0.4 1.7 Half Load 0.6 0.8 3.4 0.7 0.8 3.4 Full Load 0.9 1.1 4.7 1.2 1.2 5.
RV QG 5500, 7000/6500 EFI RV QG 5500/7000/6500 EFI Specifications Model 5500 EFI 5500 LP 7000 EFI 6500 LP Watts 5500 5500 7000 6500 RPM 2400 2400 2880 2880 Volts 120 120 120 120 Hertz 60 60 60 60 Amps 45.8 45.8 58.3 54.2 Weight (lb) 279 279 290 294 (gal/hr) (gal/hr) (lb/hr) (gal/hr) (gal/hr) (lb/hr) Avg. Fuel Consumption RV QG 5500 EFI No Load 0.3 0.4 1.7 0.4 0.5 2.1 Half Load 0.6 0.8 3.4 0.7 0.8 3.4 Full Load 0.9 1.1 4.7 1.1 1.2 5.
RV QD 5000, 6000, 8000, 10000, 12500 RV QD Specifications So Quiet And Smooth Running, You Won’t Believe They’re Diesels! Model 5000 Watts 5000 6000 8000 10000 12500 Volts 120 120 120 120/240 120/240 Hertz 60 60 60 60 60 Amps 45.8 62.5 66.6 83.3/41.7 104.0/52.0 Weight (lb) 400 420 420 690 715 Avg. Fuel Consumption (gal/hr) (gal/hr) (gal/hr) (gal/hr) (gal/hr) No Load .25 0.13 0.13 0.11 0.11 Half Load .41 0.49 0.49 0.43 0.48 Full Load .66 0.96 1.02 1.
Hybrid Quiet Diesel - Introducing A Revolutionary New RV Power System Models and ratings Model Hz Generator mode watts* Voltage Phase Inverter/boost watts 810HQDSA-6028A 60 7500/10000 120 1 3000/2500 1215HQDSB-6042A 60 12000/15000 120/240 1 3000/3000 1218HQDSB-6037A 60 12000/18000 120/240 1 6000/6000 * Boost watts added to generator set watts for peak performance. Duration depends on size/status of batteries.
Energy Command 15, 20 and 30 F BAT QUIET ON Model 20 30 Battery Monitoring House battery bank state of charge gauge • House battery bank voltage • • Engine battery bank voltage • • Ignition, Safety, Brake, Brake lights or transmission SW Digital generator hour meter • • A new line of remote power management panels that provides worry-free control for Cummins Onan diesel, gas, or LP generators.
Inverter/Charger Inverter/Charger - Size Comparison Chart Model 2000 kW 3000 kW Max Continuous Output Power AC 2000 3000 Peak Current (Surge rated peak 300%) 50 75 Max Charge Output DC Amps 100 A dc 140 A dc Charge Control 3-Stage 3-Stage Equalization S S Battery Type Settings wet/gel/agm wet/gel/agm Temperature Compensated Charging S SS 30 30 Inverter Function METERING AC INPUT INVERTERCHARGER FAULT BATTERY CHARGING CHARGED AUTO GEN CHARGE BATT INVERT ON/OFF Charger Function
69 450 Hrs 250 Hrs Schedule Onan Service Center Tune-Up Change Fuel Filter Replace Spark Plugs Change Air Filter Note: See page 23 for General Generator Maintenance Intervals Chart 200 Hrs Change Oil/Oil Filter • For more information see www. cumminsonan.
